CN112152349A

CN112152349A - Fixing structure of disc type motor rotor magnet back iron

Info

Publication number: CN112152349A
Application number: CN201910573188.1A
Authority: CN
Inventors: 王峰
Original assignee: Arctic Gull Plate Special Motor Shenzhen Co ltd
Current assignee: Arctic Gull Plate Special Motor Shenzhen Co ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-12-29

Abstract

The invention discloses a fixing structure of a disc type motor rotor magnet back iron, which comprises a rotor frame, a clamping groove, a magnet back iron, a fixing ring, a middle part, a connecting block, a through hole, a fixing groove, a rotating shaft and a shaft hole, wherein the fixing ring is arranged in the middle of the magnet back iron, the middle part is arranged in the middle of the fixing ring, one side of the fixing ring is uniformly and fixedly connected with the middle part through the connecting block, the rotating shaft is arranged in the middle of the middle part, the shaft hole is arranged in the middle of the rotating shaft, the fixing groove is arranged on the outer circumferential surface of the fixing ring at an equal angle, the rotor frame is arranged on the outer side of the magnet back iron, the clamping groove is arranged on the inner circumferential surface of the rotor frame at an equal angle, the through hole is formed between the connecting blocks, the middle part of the, the rotor frame and the magnet back iron are firmly fixed.

Description

Fixing structure of disc type motor rotor magnet back iron

Technical Field

The invention relates to the technical field of disc type motors, in particular to a fixing structure of a disc type motor rotor magnet back iron.

Background

The disc type motor is also called as a disc type motor, and has the characteristics of small volume, light weight and high efficiency, the rotor and the stator of the common motor are sleeved inside and outside, the disc type motor is thin, the stator is arranged on a flat substrate, the rotor is covered on the stator, the common stator is a coil, the rotor is a permanent magnet or a disc adhered with the permanent magnet, the back iron of the magnet of the disc type motor rotor in the prior art is easy to fall off when the disc type motor rotor rotates, and the rotor frame and the back iron of the magnet are not firmly fixed, so that the design of the fixing structure of the back iron of the magnet of the disc type motor rotor is necessary.

Disclosure of Invention

The present invention is directed to a fixing structure of a back iron of a rotor magnet of a disc motor, so as to solve the problems mentioned in the background art.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a fixed knot of disk motor rotor magnet back iron constructs, includes rotor frame, draw-in groove, magnet back iron tongue, magnet back iron, solid fixed ring, intermediate part, connecting block, through-hole, fixed recess, pivot and shaft hole, the centre of magnet back iron is provided with solid fixed ring, gu fixed ring's centre is provided with the intermediate part, and gu fixed ring one side evenly through connecting block and intermediate part fixed connection, the pivot is installed to the centre of intermediate part, and has seted up the shaft hole in the middle of the pivot, gu fixed ring's outside circumference surface equiangular sets up fixed recess, the outside of magnet back iron is provided with the rotor frame, the draw-in groove has been seted up to the inboard circumference surface equiangular sets.

Further, the connecting blocks form through holes between each other.

Furthermore, a center hole is formed in the middle of the middle part, and the rotating shaft and the center hole are of a matched structure.

Furthermore, one end of the rotating shaft is provided with an external thread.

Furthermore, a clamping groove in the rotor frame is matched with the magnet back iron, and the magnet back iron is fixed with the rotor frame through glue.

Compared with the prior art, the invention has the following beneficial effects: the rotor frame is made by the aluminium material, does not possess the magnetic conduction function, and the magnet back iron enables magnet and forms the magnetic field return circuit, and the draw-in groove has been seted up to angles such as the inboard circumference surface of rotor frame, cooperatees with magnet back iron tongue, and machinery is fixed, and it is fixed through glue with the rotor frame that the magnet back iron passes through simultaneously, prevents effectively that the rotor from droing at the magnet back iron when rotatory, has alleviateed the weight of motor.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 and 2 are schematic views of the overall structure of the present invention;

FIG. 3 is a schematic diagram of the structure of the area A in FIG. 1;

in the figure: 1. a rotor frame; 2. a card slot; 3. back iron of the magnet; 4. a fixing ring; 5. an intermediate portion; 6. connecting blocks; 7. a through hole; 8. fixing the groove; 9. a rotating shaft; 10. shaft hole, 11, magnet back iron tongue.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a fixing structure of a disc type motor rotor magnet back iron comprises a rotor frame 1, a clamping groove 2, a magnet back iron 3, a fixing ring 4, a middle part 5, a connecting block 6, a through hole 7, a fixing groove 8, a rotating shaft 9, a shaft hole 10 and a magnet back iron convex groove 11, wherein the fixing ring 4 is arranged in the middle of the magnet back iron 3, the middle part 5 is arranged in the middle of the fixing ring 4, one side of the fixing ring 4 is uniformly and fixedly connected with the middle part 5 through the connecting block 6, and the through holes 7 are formed among the connecting blocks 6, so that the connecting block 6 can be conveniently used; a rotating shaft 9 is arranged in the middle of the middle part 5, a shaft hole 10 is formed in the middle of the rotating shaft 9, a central hole is formed in the middle of the middle part 5, and the rotating shaft 9 and the central hole are of a matched structure, so that the rotating shaft 9 can be conveniently installed and fixed; an external thread is arranged at one end of the rotating shaft 9, so that the rotating shaft 9 can be conveniently connected; the outer circumferential surface of the fixing ring 4 is provided with a fixing groove 8 at an equal angle, the outer side of the magnet back iron 3 is provided with a rotor frame 1, the inner circumferential surface of the rotor frame 1 is provided with a clamping groove 2 at an equal angle, the clamping groove 2 on the rotor frame 1 is matched with the magnet back iron convex groove 11, and the magnet back iron 3 and the rotor frame 1 are fixed through glue, so that the magnet back iron 3 and the rotor frame 1 are stably connected; rotor frame 1 does not possess the magnetic conduction function by the preparation of aluminium material, and magnet back iron 3 enables magnet and forms the magnetic field return circuit, and draw-in groove 2 has been seted up to angles such as 1 inboard circumference surface of rotor frame, cooperatees with magnet back iron 3, and mechanical fastening, magnet back iron 3 passes through glue with rotor frame 1 simultaneously and fixes, prevents effectively that magnet back iron 3 from droing when the rotation of rotor, has alleviateed the weight of motor.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a fixed knot of disk motor rotor magnet back iron constructs, includes rotor frame (1), draw-in groove (2), magnet back iron (3), solid fixed ring (4), intermediate part (5), connecting block (6), through-hole (7), fixed recess (8), pivot (9) and shaft hole (10), its characterized in that: the middle of magnet back iron (3) is provided with solid fixed ring (4), the middle of solid fixed ring (4) is provided with intermediate part (5), and gu fixed ring (4) one side evenly through connecting block (6) and intermediate part (5) fixed connection, pivot (9) are installed to the centre of intermediate part (5), and have seted up shaft hole (10) in the middle of pivot (9), gu fixed ring (4) the outside circumference surface isogonism of fixed ring has seted up fixed recess (8), the outside of magnet back iron (3) is provided with rotor frame (1), draw-in groove (2) have been seted up to the inboard circumference surface isogonism of rotor frame (1).

2. The fixing structure of the back iron of the rotor magnet of the disc motor as claimed in claim 1, wherein: the connecting blocks (6) form through holes (7) between each other.

3. The fixing structure of the back iron of the rotor magnet of the disc motor as claimed in claim 1, wherein: the middle of the middle part (5) is provided with a center hole, and the rotating shaft (9) and the center hole are of a matching structure.

4. The fixing structure of the back iron of the rotor magnet of the disc motor as claimed in claim 1, wherein: and one end of the rotating shaft (9) is provided with an external thread.

5. The fixing structure of the back iron of the rotor magnet of the disc motor as claimed in claim 1, wherein: the clamping groove (2) on the rotor frame (1) is matched with the magnet back iron (3), and the magnet back iron (3) is fixed with the rotor frame (1) through glue.