CN219611466U - Permanent magnet synchronous motor for cooling tower - Google Patents
Permanent magnet synchronous motor for cooling tower Download PDFInfo
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- CN219611466U CN219611466U CN202320259318.6U CN202320259318U CN219611466U CN 219611466 U CN219611466 U CN 219611466U CN 202320259318 U CN202320259318 U CN 202320259318U CN 219611466 U CN219611466 U CN 219611466U
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- permanent magnet
- cooling tower
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Abstract
The utility model discloses a permanent magnet synchronous motor for a cooling tower, which comprises a motor base, a junction box, a stator and a rotor, wherein the rotor is rotatably arranged at the top end part of the motor base, the junction box is arranged at one side of the motor base, the stator consists of a stator iron core and a stator winding, the stator iron core is arranged at the inner side of the stator winding, an epoxy resin layer is poured on the surface of the stator winding to form an encapsulated winding structure, the stator is encapsulated and fixed at the outer side of the rotor, and a motor assembly shell is sleeved outside the stator. Compared with the conventional stator structure, the stator with the encapsulated winding structure has better paint dipping insulation grade and heat radiation performance, and the epoxy resin layer is poured on the stator with the winding structure, so that the heat radiation effect of the permanent magnet motor is improved, and meanwhile, the waterproof property is enhanced, and the fault rate of the permanent magnet motor assembled on a cooling tower is reduced; the whole permanent magnet motor assembly structure is suitable for assembly driving of the fan on the cooling tower.
Description
Technical Field
The utility model relates to the field of cooling towers, in particular to a permanent magnet synchronous motor for a cooling tower.
Background
A cooling tower is a device that uses contact of water and air to dissipate waste heat generated in industry or in a refrigerating air conditioner through evaporation. The basic principle is as follows: after the dried (low enthalpy) air is pumped by a fan, the air enters a cooling tower from an air inlet net; high-temperature water molecules with high saturated steam partial pressure flow to air with low pressure, and hot and humid water (high enthalpy value) is sprayed into the tower from the water distribution system. When water drops contact with air, on one hand, the air is directly heat-transferred with the air, on the other hand, the pressure difference exists between the surface of water vapor and the air, so that the evaporation phenomenon is generated under the action of the pressure, the water drops bring away the latent heat of evaporation, and the heat in the water is taken away, namely the evaporation heat transfer is carried out, so that the aim of cooling is achieved;
the fan at cooling tower top need be through motor drive in the rotation in-process, the blade drive mode of conventional cooling tower is AC motor drive, and AC motor receives structural volume influence, be difficult for installing in the inside top department of cooling tower, and the electric energy loss in the rotatory in-process of drive blade is efficient, consequently, need change AC motor into permanent magnet synchronous motor and drive the blade, this drive structure needs to keep high insulativity and high waterproof nature in the cooling tower assembly, avoid frequently breaking down, unable drive blade is rotatory so that the cooling tower can't normally use, for the permanent magnet synchronous motor for the cooling tower of guarantee inside top, this scheme has been proposed.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a permanent magnet synchronous motor for a cooling tower.
The utility model provides the following technical scheme:
the utility model provides a permanent magnet synchronous motor for a cooling tower, which comprises a motor base, a junction box, a stator and a rotor, wherein the rotor is rotatably arranged at the top end part of the motor base, the junction box is arranged at one side of the motor base, the stator consists of a stator core and a stator winding, the stator core is arranged at the inner side of the stator winding, an epoxy resin layer is poured on the surface of the stator winding to form an encapsulated winding structure, the stator is encapsulated and fixed at the outer side of the rotor, and a motor assembly shell is sleeved outside the stator;
the top end surfaces of the rotor and the motor assembly shell are respectively provided with a blade mounting groove with a cross-shaped structure, and a plurality of blind holes are formed in the edge of the top surface of the rotor.
As a preferable technical scheme of the utility model, the junction box is electrically connected with the rotor through a cable, and a rubber sealing ring is arranged between the junction box and the outer side surface of the motor base.
As a preferable technical scheme of the utility model, the stator, the rotor and the motor assembly shell are of an integrated packaging structure, and autorotation is realized on the motor base.
As a preferable technical scheme of the utility model, after the blade mounting groove at the top end surface of the motor assembly shell is externally connected with the blade, the motor assembly shell is fixed by bolts through the blade fixing seat.
Compared with the prior art, the utility model has the following beneficial effects:
the stator comprises the stator core and the stator winding, the stator core is arranged on the inner side of the stator winding, the epoxy resin layer is poured on the surface of the stator winding to form an encapsulated winding structure, compared with the paint-dipping insulation grade and the heat dissipation performance, the epoxy resin layer is poured on the stator of the winding structure, the heat dissipation effect of the permanent magnet motor is improved, meanwhile, the water resistance is enhanced, and the failure rate of the permanent magnet motor when assembled on a cooling tower is reduced; the whole permanent magnet motor assembly structure is suitable for assembly driving of the fan on the cooling tower.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic view of the present utility model after assembly of a blade;
FIG. 2 is a schematic view of the overall structure of the present utility model;
FIG. 3 is a schematic view of the stator structure of the present utility model;
FIG. 4 is a schematic view of the stator winding of the present utility model after casting an epoxy layer;
FIG. 5 is a schematic view of the rotor structure of the present utility model;
in the figure: 1. a motor base; 2. a junction box; 3. a stator; 4. a rotor; 5. a motor assembly housing; 6. a blade mounting groove; 7. a blind hole; 8. a blade fixing seat;
31. a stator core; 32. a stator winding; 33. an epoxy resin layer.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model. Wherein like reference numerals refer to like elements throughout.
Further, if detailed description of the known art is not necessary to illustrate the features of the present utility model, it will be omitted. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
Example 1
As shown in fig. 1-5, the utility model provides a permanent magnet synchronous motor for a cooling tower, which comprises a motor base 1, a junction box 2, a stator 3 and a rotor 4, wherein the rotor 4 is rotatably arranged at the top end part of the motor base 1, the junction box 2 is arranged at one side of the motor base 1, the stator 3 consists of a stator iron core 31 and a stator winding 32, the stator iron core 31 is arranged at the inner side of the stator winding 32, an epoxy resin layer 33 is poured on the surface of the stator winding 32 to form an encapsulated winding structure, the stator 3 is encapsulated and fixed at the outer side of the rotor 4, and a motor assembly shell 5 is sleeved outside the stator 3;
the top end surfaces of the rotor 4 and the motor assembly shell 5 are provided with a blade mounting groove 6 with a cross structure, a plurality of blind holes 7 are formed in the edge of the top surface of the rotor 4, the blind holes 7 serve as fastening holes for connecting a fan blade disc with a rotor combination bolt, and the blind holes 7 can prevent water vapor from entering the motor through the bolt holes; unlike the blind holes formed in a PCB.
The junction box 2 and the rotor 4 are electrically connected through cables, and a rubber sealing ring is further arranged between the junction box 2 and the outer side surface of the motor base 1.
The stator 3, the rotor 4 and the motor assembly housing 5 are of an integrated packaging structure, and autorotation is realized on the motor base 1.
The blade mounting groove 6 at the top end surface of the motor assembly shell 5 is externally connected with a blade and then is fixed by a bolt through the blade fixing seat 8, the blade is fixed on the blade mounting groove 6, and the bolt on the blade fixing seat 8 penetrates through the motor assembly shell 5 and then is fixed on the rotor 4, so that the fixation of the rotor 4 and the blade is realized, and the blade is driven to rotate under the rotating action of the rotor 4.
Further, the working principle of the device is as follows:
the junction box 2 is externally connected with a power line, and a rubber sealing ring (not shown in the figure) is also arranged between the junction box 2 and the motor base 1, so that the effect of reinforcing the cable connection protection of the junction box 2 is achieved; after the stator winding 32 is connected with current, a permanent magnet (not shown in the figure and belonging to the prior known technology) on the rotor 4 generates a rotating magnetic field to drive the rotor 4 to move, and as the shaft of the blade is fixed in the blade mounting groove 6 and is pressed and fixed through the blade fixing seat 8, the rotor is fixed on the rotor 4 of the motor, and the rotor 4 rotates to drive the windmill to rotate;
the top end surface of the permanent magnet motor is provided with a blind hole, so that the protection effect of the top end surface of the motor is improved;
the motor base 1 is provided with the fixed mounting hole in the device, so that the motor base 1 is conveniently fixed on the channel steel at the end part of the cooling tower top.
According to the utility model, the stator 3 consists of the stator core 31 and the stator winding 32, the stator core 31 is arranged on the inner side of the stator winding 32, the epoxy resin layer 33 is poured on the surface of the stator winding 32 to form an encapsulated winding structure, compared with the paint-dipping insulation grade and the heat dissipation performance, the epoxy resin layer 33 is poured on the stator of the winding structure, so that the heat dissipation effect of the permanent magnet motor is improved, and meanwhile, the water resistance is enhanced, so that the fault rate of the permanent magnet motor when assembled on a cooling tower is reduced;
a plurality of blind holes 7 are formed in the edge of the top end face of the rotor 4, water vapor can be prevented from entering the motor through the bolt holes, and the whole permanent magnet motor assembly structure is suitable for assembly driving of a fan on a cooling tower.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (4)
1. The utility model provides a permanent magnet synchronous motor for cooling tower, includes motor base (1), terminal box (2), stator (3) and rotor (4), its characterized in that, rotor (4) rotate and install in motor base (1) tip, terminal box (2) are installed in one side of motor base (1), stator (3) are by stator core (31), stator winding (32) are constituteed, and its stator core (31) are installed in the inboard of stator winding (32), epoxy layer (33) have been pour on stator winding (32) surface so that form encapsulated winding structure, stator (3) encapsulation is fixed in the outside of rotor (4) to outside cover at stator (3) is equipped with motor assembly shell (5);
the top end surfaces of the rotor (4) and the motor assembly shell (5) are respectively provided with a blade mounting groove (6) with a cross-shaped structure, and a plurality of blind holes (7) are formed in the edge of the top surface of the rotor (4).
2. The permanent magnet synchronous motor for the cooling tower according to claim 1, wherein the junction box (2) and the rotor (4) are electrically connected through a cable, and a rubber sealing ring is further installed between the junction box (2) and the outer side surface of the motor base (1).
3. A permanent magnet synchronous motor for a cooling tower according to claim 1, characterized in that the stator (3), the rotor (4) and the motor assembly housing (5) are of a packaged integrated structure and realize a rotation effect on the motor base (1).
4. The permanent magnet synchronous motor for the cooling tower according to claim 1, wherein a blade mounting groove (6) at the top end surface of the motor assembly housing (5) is externally connected with a blade and then fixed by bolts through a blade fixing seat (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320259318.6U CN219611466U (en) | 2023-02-20 | 2023-02-20 | Permanent magnet synchronous motor for cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320259318.6U CN219611466U (en) | 2023-02-20 | 2023-02-20 | Permanent magnet synchronous motor for cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219611466U true CN219611466U (en) | 2023-08-29 |
Family
ID=87743474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320259318.6U Active CN219611466U (en) | 2023-02-20 | 2023-02-20 | Permanent magnet synchronous motor for cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219611466U (en) |
-
2023
- 2023-02-20 CN CN202320259318.6U patent/CN219611466U/en active Active
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