CN213661288U

CN213661288U - Stator module, motor and pipeline pump

Info

Publication number: CN213661288U
Application number: CN202022517797.6U
Authority: CN
Inventors: 李树权
Original assignee: Huagong Jiangmen Electromechanical Co ltd
Current assignee: Huagong Jiangmen Electromechanical Co ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-07-09
Anticipated expiration: 2030-11-04
Also published as: WO2022095608A1

Abstract

The utility model provides a stator module, which comprises a winding iron core; the device also comprises a shell provided with two through holes and an isolation sleeve with the same outer diameter as the aperture of the through holes; the two through holes are coaxial; the side surface of the isolation sleeve is fixed on the inner wall of the through hole, and the circumferential outer wall of the isolation sleeve and the inner wall of the shell enclose a closed chamber; the winding iron core is fixed in the closed cavity and is located in the circumferential direction of the isolation sleeve. The stator module of the utility model assembles the winding iron core in the closed cavity formed by the shell and the isolation sleeve to be isolated from the outside, does not need to be encapsulated by glue pouring, avoids local overheating of the winding iron core, has simple assembly process and does not need to be solidified by consuming time; the inner wall of the isolation sleeve is used as an installation space of the rotor, the stator module can be sold as a single part product, the rotor is installed on the inner wall of the isolation sleeve through a corresponding matched bearing, and a simple motor can be assembled, so that the application range is wide; and further extended by the stator module.

Description

Stator module, motor and pipeline pump

Technical Field

The utility model relates to a motor field, specifically speaking relates to a stator module, motor and tubing pump.

Background

The stator is the stationary part of the motor or generator. The stator is composed of a winding iron core and a base, wherein the stator is wound with a stator winding, and the stator winding is mainly used for generating a rotating magnetic field, so that the rotor rotates in the rotating magnetic field.

The winding iron core in the prior art is generally fixed in a groove of a machine base in advance, and the surface insulation of the winding iron core is realized through glue pouring. For example, the chinese utility model patent with application number 2020202175919 discloses a permanent-magnet machine aluminium casing stator encapsulating device, impresses the inner chamber that can through the winding stator, realizes the stator encapsulating after the solidification from the opening part (the encapsulating chamber promptly) of inner chamber pours into liquid epoxy again. Although the insulation of the surface of the winding stator is realized by the encapsulating and packaging mode, the cured epoxy resin is not beneficial to the heat dissipation of the surface of the winding stator, the aging and moisture absorption of the epoxy resin easily cause insulation failure, and the temperature of the surface of the winding stator, especially a metal wire of a winding, is overhigh after being electrified; in addition, epoxy resin needs to be cured in the glue pouring packaging process, the assembling time is long, the motor cover plate can be covered only after the rotor needs to be assembled after the glue pouring packaging process, and the stator cannot be modularized and is required to be integrally assembled with the rotor. Accordingly, there is a need for a stator module that prevents overheating of the winding core surface, and is simple in assembly process, and thus extends to a motor and a pipe pump.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned conventional art's weak point, a prevent that winding core surface is overheated, assembly process is simple's stator module.

The purpose of the utility model is achieved through the following technical measures: a stator module comprising a winding core; the device also comprises a shell provided with two through holes and an isolation sleeve with the same outer diameter as the aperture of the through holes; the two through holes are coaxial; the side surface of the isolation sleeve is fixed on the inner wall of the through hole, and the circumferential outer wall of the isolation sleeve and the inner wall of the shell enclose a closed chamber; the winding iron core is fixed in the closed cavity and is located in the circumferential direction of the isolation sleeve.

In one embodiment of the present invention, the winding core is coaxial with the spacer sleeve.

In one embodiment of the present invention, the isolation sleeve is made of stainless steel.

In one embodiment of the present invention, the housing is cylindrical, and the through hole is coaxial with the housing.

Furthermore, at least one side wall detachably connected with the shell is arranged between the upper bottom surface and the lower bottom surface of the shell.

The utility model also provides a motor, including the stator module, still include the pivot of rotatable rotor and coaxial being fixed in the rotor of installing in the isolation sleeve, the rotor is coaxial with the winding iron core.

Furthermore, the device also comprises a front cover plate and a rear cover plate which are respectively covered on the through hole, the output end of the rotating shaft penetrates through the front cover plate and extends outwards, at least one of the front cover plate and the rear cover plate is provided with a bearing, and the rotating shaft is coaxially fixed on the inner ring of the bearing.

Still further, the bearing is a water lubricated bearing or a ceramic bearing.

Furthermore, water holes are arranged at the positions of the front cover plate and the rear cover plate corresponding to the through holes.

The utility model also provides a pipeline pump, including the motor, still include pump case and the coaxial impeller that is fixed in the outer extension part of rotor, impeller and motor all are located the pump case, and inlet opening and apopore have been seted up respectively to the pump case.

Compared with the stator module structure in the prior art, the stator module of the utility model assembles the winding iron core in the closed cavity formed by the shell and the isolation sleeve to be isolated from the outside, does not need to be encapsulated by glue pouring, avoids local overheating of the winding iron core, has simple assembly process and does not need to consume time for solidification; the inner wall of the isolation sleeve is used as an installation space of the rotor, the stator module can be sold as a single part product, the rotor is installed on the inner wall of the isolation sleeve through a corresponding matched bearing, and a simple motor can be assembled, so that the application range is wide; and further extended by the stator module.

Drawings

Fig. 1 is a sectional view of a stator module in an embodiment.

Fig. 2 is a sectional view of a motor in an embodiment mode.

FIG. 3 is a cross-sectional view of a tubing pump in an example embodiment.

Wherein: 10. a winding core; 20. a housing; 30. an isolation sleeve; 40. a rotor; 50. a rotating shaft; 601. a front cover plate; 602. a rear cover plate; 70. a bearing; 80. a pump housing; 90. an impeller.

Detailed Description

Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, a stator module includes a winding core 10; the device also comprises a shell 20 provided with two through holes and an isolation sleeve 30 with the same outer diameter as the through hole; the two through holes are coaxial; the side surface of the isolation sleeve 30 is fixed on the inner wall of the through hole, and the circumferential outer wall of the isolation sleeve 30 and the inner wall of the shell 20 enclose a closed chamber; the winding iron core 10 is fixed in the closed cavity, and the winding iron core 10 is located in the circumferential direction of the isolation sleeve 30. The winding core 10 is coaxial with the distance sleeve 30. The distance tube 30 is made of stainless steel. The housing 20 is cylindrical, and the through hole is coaxial with the housing 20.

The winding mode and the power supply mode of the stator winding on the winding iron core 10 are the prior art, the power supply mode can be wired power supply and wireless power supply, the wired power supply can be an internal power supply, if the wired power supply is an external power supply, if the electric connection penetrates through the shell 20 through a lead, the lead part should be subjected to insulation sealing treatment; the complex control may be provided by a circuit board, which belongs to the common general knowledge for those skilled in the art and will not be described herein. To achieve a magnetic field interaction between the stator and the rotor 40, the spacer sleeve 30 is a non-magnetic material.

The stator module assembles the winding iron core 10 in a closed cavity formed by the shell 20 and the isolation sleeve 30 to be isolated from the outside, glue pouring and packaging are not needed, the local overheating of the winding iron core 10 is avoided, the assembly process is simple, and time consumption for solidification is not needed; the inner wall of the isolation sleeve 30 is used as an installation space of the rotor 40, and the stator module can be sold as a single part product, so that assembly and maintenance are facilitated.

The winding iron core 10 is coaxial with the isolation sleeve 30, so that the rotating magnetic field generated by the winding iron core 10 is uniformly distributed on the central axis of the isolation sleeve 30, the winding iron core is not required to be installed at a specific position, and the power loss of the rotor 40 can be reduced only by ensuring that the rotor 40 is coaxial with the isolation sleeve 30.

The stainless steel isolation sleeve 30 is not magnetic-isolating and corrosion-resistant, and can effectively isolate the medium to prevent corrosion.

The cylindrical shell 20 is provided with a through hole at the center of the upper and lower bottom surfaces of the shell 20, is annular as a whole and is regular in shape, and is convenient to process.

To facilitate the inspection, the upper and lower bottom surfaces of the case 20 are detachably coupled to the side walls of the case 20. Specifically, for example, the upper bottom surface and the lower bottom surface of the housing 20 are sealed and fastened to the side walls of the housing 20.

As shown in fig. 2, the present invention further provides an electric motor, which includes a stator module, a rotor 40 rotatably installed in the isolation sleeve 30, and a rotating shaft 50 coaxially fixed to the rotor 40, wherein the rotor 40 is coaxial with the winding core 10.

The working principle is as follows: the rotor 40 is installed on the inner wall of the isolation sleeve through the corresponding matched bearing 70, the winding iron core 10 is electrified to generate a rotating magnetic field, the rotor 40 rotates in the rotating magnetic field, and the rotor 40 drives the rotating shaft 50 to rotate.

In order to facilitate the detachment of the rotor 40, the rotor further includes a front cover plate 601 and a rear cover plate 602 respectively covering the through holes, the output end of the rotating shaft 50 extends outwards through the front cover plate 601, bearings 70 are respectively installed in the front cover plate 601 and the rear cover plate 602, the two bearings 70 are coaxial, and the rotating shaft 50 is coaxially fixed to the inner ring of the bearing 70. If the rotor 40 is directly installed on the inner wall of the isolation sleeve 30 through the bearing 70, when the rotor 40 is overhauled and disassembled, the bearing 70 and the rotor 40 can be separated only by applying force along the bearing 70 of the bearing 70, and the disassembly is difficult; by adopting the structure of the utility model, the rotor 40 can be separated only by opening the front cover plate 601 and the rear cover plate 602, and the disassembly is simple; the two bearings 70 prevent radial wobble of the rotor 40.

To further expand the usage scenario, the bearing 70 is a water lubricated bearing or a ceramic bearing, which can be normally used in water.

Furthermore, water holes are formed in the front cover plate 601 and the rear cover plate 602 corresponding to the through holes. The water flows through the rotor 40, and the rotor 40 can be cooled.

As shown in fig. 3, fig. 3 omits a part of the pump case 80, the utility model discloses still provide a pipeline pump, including the motor, still include pump case 80 and the coaxial impeller 90 that is fixed in the outside extension of pivot 50, impeller 90 all is located pump case 80 with the motor, and inlet opening and apopore have been seted up respectively to pump case 80.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A stator module comprising a winding core; the device is characterized by also comprising a shell provided with two through holes and an isolation sleeve with the same outer diameter as the through hole; the two through holes are coaxial; the side surface of the isolation sleeve is fixed on the inner wall of the through hole, and the circumferential outer wall of the isolation sleeve and the inner wall of the shell enclose a closed chamber; the winding iron core is fixed in the closed cavity and is located in the circumferential direction of the isolation sleeve.

2. The stator module of claim 1 wherein the winding core is coaxial with the spacer sleeve.

3. The stator module of claim 1 wherein the spacer sleeve is stainless steel.

4. The stator module of claim 1, wherein the housing is cylindrical and the through-hole is coaxial with the housing.

5. The stator module of claim 4 wherein at least one of the upper and lower bottom surfaces of the housing is a side wall that is removably attached to the housing.

6. An electrical machine comprising a stator module according to any one of claims 2 to 5, a rotor rotatably mounted within the spacer sleeve and a shaft coaxially secured to the rotor, the rotor being coaxial with the winding core.

7. The motor of claim 6, further comprising a front cover plate and a rear cover plate respectively covering the through holes, wherein an output end of the rotating shaft extends outwards through the front cover plate, at least one of the front cover plate and the rear cover plate is provided with a bearing, and the rotating shaft is coaxially fixed to an inner ring of the bearing.

8. The electric machine of claim 7, wherein the bearings are water lubricated bearings or ceramic bearings.

9. The motor of claim 8, wherein the front cover plate and the rear cover plate are provided with water holes corresponding to the through holes.

10. A pipeline pump, characterized by comprising the motor of claim 6, and further comprising a pump housing and an impeller coaxially fixed to an outward extending part of the rotating shaft, wherein the impeller and the motor are both positioned in the pump housing, and the pump housing is respectively provided with a water inlet and a water outlet.