CN211481021U

CN211481021U - Permanent magnet mounting structure of permanent magnet synchronous motor

Info

Publication number: CN211481021U
Application number: CN202020270139.9U
Authority: CN
Inventors: 王金凤
Original assignee: Zhaoqing City Kunpeng Power Co ltd
Current assignee: Zhaoqing City Kunpeng Power Co ltd
Priority date: 2020-03-07
Filing date: 2020-03-07
Publication date: 2020-09-11
Anticipated expiration: 2030-03-07

Abstract

The utility model relates to a PMSM technical field just discloses a PMSM's permanent magnet mounting structure, including rotor body and permanent magnet, the isolation groove that the annular distributes is seted up in rotor body's the outside, the draw-in groove that is located the inside both sides of isolation groove is seted up to rotor body's inside, one side fixedly connected with mount pad that the permanent magnet is close to rotor body, the mount pad matches with the isolation groove, the mounting groove has all been seted up to the both sides of mount pad, the inner wall fixedly connected with spring of mounting groove, the one end fixedly connected with card strip of spring, card strip and draw-in groove joint, the articulated seat of one end fixedly connected with of mount pad. The utility model provides an embedded installation need professional instrument come to install the permanent magnet on the rotor, manufacturing cost is great, and because the dismantlement of permanent magnet is very difficult, consequently follow-up maintenance is changed the permanent magnet comparatively trouble, the problem that inconvenient user used.

Description

Permanent magnet mounting structure of permanent magnet synchronous motor

Technical Field

The utility model relates to a PMSM technical field specifically is a PMSM's permanent magnet mounting structure.

Background

The permanent magnet synchronous motor has the advantages of less loss, high efficiency and obvious electricity-saving effect, the permanent magnet synchronous motor provides excitation by the permanent magnet, so that the motor has a simpler structure, the processing and assembly cost is reduced, a collecting ring and an electric brush which are easy to cause problems are omitted, the running reliability of the motor is improved, the efficiency and the power density of the motor are improved because excitation current is not needed and excitation loss is avoided, therefore, the permanent magnet synchronous motor is a motor which is researched more in recent years and is applied more and more widely in various fields, and the permanent magnet synchronous motor is very necessary to research nowadays when energy conservation and environmental protection are increasingly emphasized.

The permanent magnet synchronous motor rotor core commonly used at present is divided into a surface type and an insertion type, the surface type rotor structure is divided into a protruding type and an embedded type, wherein the embedded type is a type which is widely used, in the actual using process, the embedded type installation needs professional instruments to install the permanent magnet on the rotor, the production cost is large, and the permanent magnet is difficult to disassemble, so that the permanent magnet is troublesome to overhaul and replace subsequently, and the use of a user is inconvenient.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a permanent magnet synchronous machine's permanent magnet mounting structure possesses the convenience and installs the permanent magnet, and dismantles advantages such as comparatively convenient, has solved embedded installation and has required professional instrument to come the permanent magnet to install on the rotor, and manufacturing cost is great, and because the dismantlement of permanent magnet is very difficult, consequently follow-up maintenance changes the permanent magnet comparatively trouble, the problem that inconvenient user used.

(II) technical scheme

Install the permanent magnet for realizing above-mentioned convenience, and dismantle comparatively convenient purpose, the utility model provides a following technical scheme: the utility model provides a PMSM's permanent magnet mounting structure, includes rotor body and permanent magnet, the isolation groove that the annular distributes is seted up in rotor body's the outside, the draw-in groove that is located the inside both sides of isolation groove is seted up to rotor body's inside, one side fixedly connected with mount pad that the permanent magnet is close to rotor body, the mount pad matches with the isolation groove, the mounting groove has all been seted up to the both sides of mount pad, the inner wall fixedly connected with spring of mounting groove, the one end fixedly connected with card strip of spring, card strip and draw-in groove joint, the articulated seat of the one end fixedly connected with of mount pad, one side of articulated seat articulates there is L type buckle, L type buckle and rotor body joint, rotor body's one end is provided with the permanent magnet front end housing, rotor body's the other end is provided with.

Preferably, the inner edge of the rotor body is fixedly connected with a rotating shaft, and the surface of the rotating shaft is sleeved with a bearing positioned on one side of the rotor body.

Preferably, the shape of card strip is right trapezoid, and the surface of card strip is provided with the protection pad.

Preferably, the one end that the rotor body is close to the permanent magnet front end housing is seted up the thread groove of annular distribution, L type buckle is pegged graft with the thread groove, and one side of L type buckle has seted up the through-hole, one side threaded connection of permanent magnet front end housing has the screw, the screw run through the through-hole and with thread groove threaded connection.

Preferably, one end of the clamping groove close to the rear end cover of the permanent magnet is open.

Preferably, one side of the permanent magnet rear end cover is in threaded connection with a fastening screw, and the permanent magnet rear end cover is connected with the rotor body through the fastening screw.

Preferably, the number of the permanent magnets is four, and each permanent magnet comprises a permanent magnet N pole and a permanent magnet S pole.

(III) advantageous effects

Compared with the prior art, the utility model provides a PMSM's permanent magnet mounting structure possesses following beneficial effect:

1. the permanent magnet mounting structure of the permanent magnet synchronous motor is provided with the clamping groove and the isolation groove, when the permanent magnet is mounted on the rotor body, the mounting seat is pushed into the isolation groove, the inner wall of the isolation groove extrudes the clamping strip in the pushing process of the mounting seat, the spring is in a compressed state at the moment, when the mounting seat is completely pushed into the isolation groove, the spring pushes the clamping strip to move, so that the clamping strip is clamped in the clamping groove, then the L-shaped buckle plate is turned down along the hinging seat to be buckled on the rotor body, then the permanent magnet front end cover and the permanent magnet rear end cover are respectively arranged at the two ends of the rotor body, the installation of completion permanent magnet that can be quick, whole process need not other precision equipment, has reduced manufacturing cost, has solved embedded installation and need professional instrument to install the permanent magnet on the rotor, the great problem of manufacturing cost.

2. This permanent magnet synchronous motor's permanent magnet mounting structure sets the opening form to through the one end that is close to the permanent magnet rear end cap with the draw-in groove, when needs are changed the permanent magnet, only need pull down permanent magnet front end housing and permanent magnet rear end cap, then separately on L type buckle and the rotor body, only need promote the permanent magnet this moment, can make the mount pad along the isolation slot motion, take the mount pad out from the opening of isolation slot, can pull down the permanent magnet, made things convenient for to dismantle the change to the permanent magnet.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a side view of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2 according to the present invention.

In the figure: 1. a rotor body; 2. an isolation trench; 3. a card slot; 4. a permanent magnet; 5. a mounting seat; 6. mounting grooves; 7. a spring; 8. clamping the strip; 9. a hinged seat; 10. an L-shaped buckle plate; 11. a permanent magnet front end cover; 12. a permanent magnet rear end cover; 13. a thread groove; 14. a through hole; 15. a rotating shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-3, the present embodiment provides a permanent magnet mounting structure of a permanent magnet synchronous motor, including a rotor body 1 and permanent magnets 4, the number of the permanent magnets 4 is four, each permanent magnet 4 includes a permanent magnet N pole and a permanent magnet S pole, the outer side of the rotor body 1 is provided with annularly distributed isolation slots 2, the inside of the rotor body 1 is provided with slots 3 located at two sides inside the isolation slots 2, one side of the permanent magnet 4 near the rotor body 1 is fixedly connected with a mounting seat 5, the mounting seat 5 is matched with the isolation slots 2, two sides of the mounting seat 5 are provided with mounting grooves 6, the inner wall of the mounting groove 6 is fixedly connected with a spring 7, one end of the spring 7 is fixedly connected with a clamping bar 8, the clamping bar 8 is clamped with the slots 3, one end of the mounting seat 5 is fixedly connected with a hinge seat 9, one side of the hinge seat 9 is hinged, l type buckle 10 and rotor body 1 joint, and rotor body 1's one end is provided with permanent magnet front end housing 11, and rotor body 1's the other end is provided with permanent magnet rear end housing 12, and the one end that draw-in groove 3 is close to permanent magnet rear end housing 12 is the opening form.

In the embodiment, when the permanent magnet 4 is installed on the rotor body 1, the installation seat 5 is pushed into the isolation groove 2, the inner wall of the isolation groove 2 extrudes the clamping strip 8 in the pushing process of the installation seat 5, the spring 7 is in a compressed state at the moment, when the installation seat 5 is completely pushed into the isolation groove 2, the spring 7 pushes the clamping strip 8 to move, the clamping strip 8 is clamped in the clamping groove 3, the L-shaped buckling plate 10 is overturned along the hinging seat 9, the L-shaped buckling plate 10 is buckled on the rotor body 1, then the permanent magnet front end cover 11 and the permanent magnet rear end cover 12 are respectively installed at two ends of the rotor body 1, the installation of the permanent magnet 4 can be rapidly completed, other precise equipment is not needed in the whole process, the production cost is reduced, the problem that a professional instrument is needed for installing the permanent magnet 4 on the rotor in an embedded installation manner, and the production cost is high, in addition, the one end through being close to permanent magnet rear end cap 12 with draw-in groove 3 sets to the opening form, when needs are changed permanent magnet 4, only need pull down permanent magnet front end cap 11 and permanent magnet rear end cap 12, then part on L type buckle 10 and the rotor body 1, only need promote permanent magnet 4 this moment, can make mount pad 5 along the motion of isolation groove 2, take mount pad 5 out from the opening of isolation groove 2, can pull down permanent magnet 4, made things convenient for to dismantle the change permanent magnet 4.

Example 2

Referring to fig. 1-3, a further improvement is made on the basis of embodiment 1: rotor body 1's inner edge fixedly connected with pivot 15, and the bearing that is located rotor body 1 one side has been cup jointed on pivot 15's surface, and the bearing can make pivot 15's rotation process more smooth and easy, and the shape of card strip 8 is right trapezoid, and the surface of card strip 8 is provided with the protection pad, has made things convenient for and has inserted card strip 8 inside draw-in groove 3 along shielded cell 2, and the protection pad can protect between card strip 8 and the draw-in groove 3, prevents to produce the collision between card strip 8 and the draw-in groove 3.

Wherein, rotor body 1 is close to the thread groove 13 that the annular distributes is seted up to the one end of permanent magnet front end housing 11, L type buckle 10 is pegged graft with thread groove 13, and through-hole 14 has been seted up to one side of L type buckle 10, one side threaded connection of permanent magnet front end housing 11 has the screw, the screw run through-hole 14 and with thread groove 13 threaded connection, through using the screw, can be when fixing permanent magnet front end housing 11, can fix the position of L type buckle 10, thereby can make permanent magnet 4's installation more firm.

Example 3

Referring to fig. 1-3, a further improvement is made on the basis of embodiment 1: one side of the permanent magnet rear end cover 12 is in threaded connection with a fastening screw, and the permanent magnet rear end cover 12 is connected with the rotor body 1 through the fastening screw, so that the permanent magnet rear end cover 12 can be detached and is convenient to detach.

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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a permanent magnet synchronous motor's permanent magnet mounting structure, includes rotor body (1) and permanent magnet (4), its characterized in that: the rotor comprises a rotor body (1), wherein the outer side of the rotor body (1) is provided with an isolation groove (2) which is distributed annularly, the inner part of the rotor body (1) is provided with clamping grooves (3) which are positioned at two sides of the inner part of the isolation groove (2), one side of a permanent magnet (4) which is close to the rotor body (1) is fixedly connected with an installation seat (5), the installation seat (5) is matched with the isolation groove (2), two sides of the installation seat (5) are respectively provided with an installation groove (6), the inner wall of the installation groove (6) is fixedly connected with a spring (7), one end of the spring (7) is fixedly connected with a clamping strip (8), the clamping strip (8) is clamped with the clamping grooves (3), one end of the installation seat (5) is fixedly connected with a hinged seat (9), one side of the hinged seat (9) is hinged with an L-shaped buckle plate (10, one end of the rotor body (1) is provided with a permanent magnet front end cover (11), and the other end of the rotor body (1) is provided with a permanent magnet rear end cover (12).

2. The permanent magnet mounting structure of a permanent magnet synchronous motor according to claim 1, characterized in that: the inner edge of the rotor body (1) is fixedly connected with a rotating shaft (15), and the surface of the rotating shaft (15) is sleeved with a bearing positioned on one side of the rotor body (1).

3. The permanent magnet mounting structure of a permanent magnet synchronous motor according to claim 1, characterized in that: the shape of card strip (8) is right trapezoid, and the surface of card strip (8) is provided with the protection pad.

4. The permanent magnet mounting structure of a permanent magnet synchronous motor according to claim 1, characterized in that: rotor body (1) is close to the one end of permanent magnet front end housing (11) and has seted up thread groove (13) that the annular distributes, L type buckle (10) are pegged graft with thread groove (13), and one side of L type buckle (10) has seted up through-hole (14), one side threaded connection of permanent magnet front end housing (11) has the screw, the screw runs through-hole (14) and with thread groove (13) threaded connection.

5. The permanent magnet mounting structure of a permanent magnet synchronous motor according to claim 1, characterized in that: one end of the clamping groove (3) close to the rear end cover (12) of the permanent magnet is in an open shape.

6. The permanent magnet mounting structure of a permanent magnet synchronous motor according to claim 1, characterized in that: and one side of the permanent magnet rear end cover (12) is in threaded connection with a fastening screw, and the permanent magnet rear end cover (12) is connected with the rotor body (1) through the fastening screw.

7. The permanent magnet mounting structure of a permanent magnet synchronous motor according to claim 1, characterized in that: the number of the permanent magnets (4) is four, and each permanent magnet (4) comprises a permanent magnet N pole and a permanent magnet S pole.