CN213072265U

CN213072265U - Annular motor and stator shell thereof

Info

Publication number: CN213072265U
Application number: CN202022455018.4U
Authority: CN
Inventors: 蔺代运; 陈延涛
Original assignee: Hunan Dongde Industrial Technology Co ltd
Current assignee: Hunan Dongde Industrial Technology Co ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-04-27
Anticipated expiration: 2030-10-29

Abstract

The utility model discloses an annular motor and stator housing thereof is equipped with the annular groove who holds motor stator on this stator housing's the inside wall, and this stator housing is formed by the concatenation of the arc shell element that the multistage is connected in order, every section the top of arc shell element all be equipped with at least one with the encapsulating hole of annular groove intercommunication. The stator shell can play a role in supporting, protecting the coil and also playing roles in glue pouring forming and fixing the coil.

Description

Annular motor and stator shell thereof

Technical Field

The utility model belongs to the technical field of motor stator coil encapsulating, especially, relate to an annular motor and stator housing thereof.

Background

In order to meet the requirements of the motor windings on voltage resistance, stator winding insulation strength, mechanical strength in operation, heat conductivity, mechanical vibration, noise control and the like, the common method is to use insulation impregnating varnish of the same grade for the motor stator and perform technical treatment of impregnating varnish and drying.

However, for the high-power annular permanent magnet direct-drive motor, it is far from insufficient to only do the above-mentioned stator treatment, in order to meet the performance requirement of the high-power annular permanent magnet direct-drive motor, it is necessary to do the totally enclosed potting treatment to the permanent magnet direct-drive motor stator winding group, the potting work in the prior art is usually completed by means of a relatively complicated tool, the stator is wrapped and cured by the insulating sealant through the mold potting, and then assembled with parts such as the stator housing, and the process is relatively complicated, and the stator is not firmly fixed in the housing.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides an annular motor and stator housing thereof, this stator housing both can play the supporting role, can play the protection coil effect again, still plays encapsulating shaping and fixed coil effect.

In order to solve the technical problem, the utility model adopts the following technical scheme:

annular motor stator casing is equipped with the annular groove who holds motor stator on this stator casing's the inside wall, and this stator casing is formed by the concatenation of the arc shell unit that the multistage is connected in order, every section the top of arc shell unit all be equipped with at least one with the encapsulating hole of annular groove intercommunication.

Specifically, the top and the bottom of the stator shell are both provided with annular guide sliding chutes in sliding fit with sliding blocks on the rotor of the annular motor, the central axis of each annular guide sliding chute coincides with the rotation axis of the rotor of the annular motor, and the glue pouring holes are formed in the bottom of each guide sliding chute.

Specifically, the number of the glue filling holes in each section of the arc-shaped shell unit is two.

Annular motor, including stator and rotor, this stator includes stator housing and stator winding, is equipped with the annular groove who holds motor stator on this stator housing's the inside wall, the stator sets up in the annular groove, this stator housing is formed by the concatenation of the multistage arc shell unit who connects in order, the stator by the multistage connect in order and with the stator winding unit concatenation of arc shell unit one-to-one forms, every section the top of arc shell unit all be equipped with at least one with the encapsulating hole of annular groove intercommunication, pass through in the annular groove the encapsulating hole is filled with insulating sealed glue.

Specifically, the top and the bottom of the stator shell are both provided with annular guide chutes, and the central axis of each annular guide chute is superposed with the rotation axis of the annular motor rotor;

at least three rigid supports are uniformly distributed and fixed on the rotor support of the rotor along the circumferential direction of the rotor support, and each rigid support is provided with a sliding block which is used for being connected with the annular guide sliding groove in a matching and sliding mode.

Specifically, the sliding block and/or the rigid support are made of insulating materials.

Specifically, the central axis of the stator winding coincides with the axis of revolution of the rotor.

Specifically, the annular motor is a permanent magnet direct drive motor.

Compared with the prior art, the utility model discloses the beneficial effect who has lies in: when motor stator and stator housing assemble, pack into each section stator winding unit in the corresponding arc housing unit earlier, and set up the baffle at arc housing unit's inboard and both ends, thereby enclose inclosed encapsulating cavity, pour into insulating sealed glue into the encapsulating cavity through the encapsulating hole at arc housing unit top, can realize the encapsulating of stator winding unit among each section arc housing unit and seal, each section arc housing unit that will be encapsulated with stator winding unit with the encapsulating passes through connecting pieces such as bolt and splices in order and can accomplish motor stator and stator housing's assembly, stator housing both plays the supporting role, play the protection coil effect again, still play encapsulating shaping and fixed coil effect, the filling time limit for a project has been shortened, motor manufacturing cost has been reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an annular motor according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

fig. 3 is a partial schematic view of a stator housing unit of an annular motor according to an embodiment of the present invention;

fig. 4 is a schematic view of a glue filling of a stator housing unit of an annular motor according to an embodiment of the present invention;

wherein: 1-a stator housing; 2-stator winding; 3-an annular baffle; 4-an annular groove; 5-glue pouring holes; 6-annular guide chute; 7-a rotor; 701, a rotor bracket; 702-a permanent magnet; 8-a rigid support; 9-a slide block; 10-end baffles; 11-magnet.

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 efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, an annular motor stator, including stator and rotor 7, the stator includes stator housing 1 and stator winding 2, be equipped with the annular groove 4 that holds stator winding 2 on the inside wall of this stator housing 1, this stator housing 1 is formed by the concatenation of the arc shell unit 101 that the multistage is connected in order, the top of every section arc shell unit 101 all is equipped with at least one encapsulating hole 5 with annular groove 4 intercommunication, stator winding 2 is connected in order by the multistage and is formed with the concatenation of the stator winding unit 201 of arc shell unit 101 one-to-one. As for the specific structures of the rotor 1 and the stator winding 2, they are the prior art and will not be described in detail herein.

In the embodiment, when the stator housing 1 and the stator winding 2 are assembled, each section of the stator winding unit 201 is firstly installed in the corresponding arc-shaped housing unit 201, the inner side opening of the arc-shaped housing unit 201 is sealed by the annular baffle 3, the two openings are sealed by the end baffle 10, so that a sealed glue filling cavity is formed by enclosing the stator winding units together, insulating sealant is filled into the glue filling cavity through the glue filling hole 5 at the top of the arc-shaped housing unit 101, so that the glue filling and sealing of the stator winding unit 201 in each section of the arc-shaped housing unit 101 can be realized, then each section of the arc-shaped housing unit 101 with the stator winding unit 201 encapsulated by the glue filling is sequentially spliced by connecting pieces such as bolts and the like, so that the assembly of the stator winding 2 and the stator housing 1 can be completed, the stator housing 1 has the functions of supporting and protecting coils, also has the functions of glue filling and forming and fixing coils, the manufacturing cost of the motor is reduced.

Referring to fig. 3 and 4, in some possible embodiments, the ring baffle 3 is tightly attached to the inner circumferential surface of the stator winding unit 201, the end baffles 10 are tightly attached to both ends of the stator winding unit 201, both the ring baffle 3 and the end baffles 10 are thin iron plates, during glue filling, the outer sides of the ring baffle 3 and the end baffles 10 are tightly attached to the stator through magnetic attraction, the insulating sealant naturally flows into the glue filling cavity to be cooled and solidified under the influence of gravity, the stator winding unit 201 and the stator housing unit 101 of the motor are connected into a whole, and finally the ring baffle 3 and the end baffles 10 are removed, so that glue filling of the stator coil can be completed, the glue solution cannot enter the inner circumferential surface of the stator winding 2, and the inner diameter size of the stator winding 2 cannot be changed.

In this embodiment, during stator housing unit 101 preparation, reserve stator housing unit 101 both sides tip baffle according to coil thickness, rectangular hole is opened to baffle side (single face) for exhaust when encapsulating, the colloid of being convenient for pours into. After the coil is installed, an annular baffle is additionally installed on the inner side of the stator shell unit 101, the inner cavity of the stator shell unit 101 is used as a glue pouring forming die, the formed coil is well combined with the stator shell unit 101, the annular baffle and the end baffle are removed, the surface is the final appearance, and then the next step of assembly is carried out.

In this embodiment, the ring motor is a permanent magnet direct drive motor, the rotor 7 includes a rotor support 701 and a permanent magnet 702 disposed on the rotor support 701, the stator winding 2 includes a coil and a stator core, the coil is wound on the stator core, and the number of the glue filling holes 5 on each stator housing unit 101 can be two, so as to facilitate air exhaust.

Referring to fig. 1 and 2, in some possible embodiments, an annular guide chute 6 is further provided at the top and bottom of the stator housing 1, a central axis of the annular guide chute 6 coincides with a rotation axis of a rotor 7 of the annular motor, correspondingly, at least three rigid supports 8 are uniformly fixed on the rotor support 701 along a circumferential direction thereof, and each rigid support 8 is provided with a sliding block 9 for matching and sliding connection with the guide chute 6. In such a way, the sliding block 9 connected with the rotor 7 can only run in the guide chute 6, and the guide chute 6 and the motor stator shell 1 are integrated, so that the relative clearance between the stator and the rotor is always kept unchanged, the stability of the air gap value is indirectly ensured, the stability of the air gap value is further ensured when the motor is assembled with rotary equipment, and the motor installation efficiency is improved. It will be appreciated that in practice the glue holes 5 are provided at the bottom of the guide runners 6 at the top of the stator housing 1.

Referring to fig. 1 and 2, in some possible embodiments, the slider 9 and/or the rigid support 8 are made of an insulating material. The sliding block 9 and/or the rigid support 8 are made of insulating materials, so that the insulation of a stator and a rotor of the motor and the stability of operation can be ensured, when the central axis of the stator winding 2 is superposed with the rotation axis of the rotor 7, the width consistency of all parts of an air gap can be ensured, and the stability of the operation of the motor is ensured. In addition, the slide block 9 is rotatably connected with the rigid support 701 through a rotating shaft, and the axis of the rotating shaft is parallel to the rotation axis of the rotor 7, so that the slide block 9 slides in the guide chute 6 in a rolling manner, and the sliding resistance can be effectively reduced.

The above examples are merely illustrative of the present invention clearly and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Nor is it intended to be exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.

Claims

1. Annular motor stator casing is equipped with the annular groove who holds motor stator on this stator casing's the inside wall, its characterized in that: this stator casing is formed by the concatenation of the arc shell unit that the multistage is connected in order, every section the top of arc shell unit all be equipped with at least one with the encapsulating hole of annular groove intercommunication.

2. The ring motor stator housing of claim 1, wherein: the top and the bottom of the stator shell are both provided with annular guide sliding chutes in sliding fit with sliding blocks on the rotors of the annular motors, the central axes of the annular guide sliding chutes coincide with the rotation axes of the rotors of the annular motors, and the glue pouring holes are formed in the bottoms of the guide sliding chutes.

3. The ring motor stator housing of claim 2, wherein: the number of the glue pouring holes in each section of the arc-shaped shell unit is two.

4. Annular electric machine, including stator and rotor, this stator includes stator housing and stator winding, be equipped with the annular groove who holds stator winding on the inside wall of stator housing, stator winding sets up in the annular groove, its characterized in that: this stator housing is formed by the concatenation of the multistage arc shell unit who connects in order, stator winding connect in order by the multistage and with the concatenation of the stator winding unit of arc shell unit one-to-one forms, every section the top of arc shell unit all be equipped with at least one with the encapsulating hole of annular groove intercommunication, pass through in the annular groove the encapsulating hole has filled insulating sealed glue.

5. The ring motor of claim 4, wherein: the top and the bottom of the stator shell are both provided with annular guide chutes, and the central axis of each annular guide chute is superposed with the rotation axis of the annular motor rotor;

6. The ring motor of claim 5, wherein: the sliding block and/or the rigid support are made of insulating materials.

7. The ring motor of claim 5, wherein: the central axis of the stator winding is coincident with the revolution axis of the rotor.

8. The ring motor of claim 5, wherein: the number of the glue pouring holes in each section of the arc-shaped shell unit is two.

9. An annular electric machine according to any of claims 4-8, characterized in that: the annular motor is a permanent magnet direct drive motor.