CN213817382U

CN213817382U - Novel 'radiating fin' type magnetic pole coil

Info

Publication number: CN213817382U
Application number: CN202023048141.0U
Authority: CN
Inventors: 陈晨
Original assignee: Tianjin Tianfa Heavy Hydropower Equipment Manufacturing Co Ltd
Current assignee: Tianjin Tianfa Heavy Hydropower Equipment Manufacturing Co Ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-07-27
Anticipated expiration: 2030-12-17

Abstract

The utility model relates to a hydraulic generator makes technical field, especially, relate to a novel magnetic pole coil of "heat dissipation wing" formula, this magnetic pole coil adopts the copper bar coiling of type-shaped cross section to form, including magnetic pole core, convex copper flat wire, coil bottom plate and coil upper plate, convex copper flat wire is according to mutual welding between clockwise and the magnetic pole coil, the coil upper plate, through hot pressing integrated into one piece between coil bottom plate and the coil, the magnetic pole coil cover is established in the outside unshakable in one's determination of magnetic pole, be provided with the closing plate between magnetic pole core and the magnetic pole coil, be provided with the coil tray under the coil bottom plate, mutual fixed connection between coil bottom plate and the coil tray, the closing plate comprises epoxy glass cloth board A and epoxy glass cloth board B, mutual fixed connection between epoxy glass cloth board A and the epoxy glass cloth board B. The magnetic pole coil is reliable in insulation, simple and convenient to manufacture and mount, good in heat dissipation effect, capable of improving the cooling condition of the rotor and beneficial to improving the power density of the generator.

Description

Novel 'radiating fin' type magnetic pole coil

Technical Field

The utility model relates to a hydraulic generator makes technical field, especially relates to a novel magnetic pole coil of "heat dissipation wing" formula.

Background

At present, a pole coil of a hydraulic generator is mostly formed by winding rectangular, pentagonal or heptagonal naked flat copper bars, and a medium-and-small-capacity hydraulic generator is mostly formed by a pentagonal pole coil. For a large bulb tubular hydraulic generator rotor, the heat dissipation effect of the pentagonal magnetic pole coil is slightly poor.

Aiming at a bulb tubular hydraulic generator with larger capacity (the outer diameter of a stator punching sheet is more than 7560mm, the length of an iron core is more than 1400mm, and the rated capacity is more than 3.5 kilo-volt ampere), a novel rotor magnetic pole coil of a 'radiating fin' type is provided for enhancing the cooling effect of a rotor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the corona problem that present high voltage generator exists, the utility model provides a novel magnetic pole coil of "heat dissipation wing" formula, the utility model discloses a convex copper flat wire of special cross-section form through to the magnetic pole coil generating line clockwise welding from top to bottom, makes magnetic pole coil wholly present a heat dissipation wing formula structure, obtains superior cooling effect, and this magnetic pole coil is insulating reliable, makes the simple installation, and the radiating effect is good, improves rotor cooling condition, is favorable to improving generator power density.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: the utility model provides a novel magnetic pole coil of "heat dissipation wing" formula, this magnetic pole coil adopt the copper bar coiling of type-protruding cross section to form, including magnetic pole iron core, convex copper flat wire, coil bottom plate and coil upper bracket board, convex copper flat wire presses and welds each other between clockwise and the magnetic pole coil, through hot pressing integrated into one piece between coil upper bracket board, coil bottom plate and the coil, the magnetic pole coil cover is established magnetic pole iron core's outside, be provided with the closing plate between magnetic pole iron core and the magnetic pole coil, the coil bottom plate be provided with the coil tray under, mutual fixed connection between coil bottom plate and the coil tray.

Furthermore, the sealing plate is composed of an epoxy glass cloth plate A and an epoxy glass cloth plate B, and the epoxy glass cloth plate A and the epoxy glass cloth plate B are fixedly connected with each other.

Further, a gap is formed between the pole core and the pole coil, and the gap between the pole core and the pole coil is tightly plugged by the epoxy glass cloth plate A and the epoxy glass cloth plate B and is filled and sealed by sealant.

Furthermore, a plurality of pieces of upper adhesive paper for coil turn-to-turn insulation are arranged between the coil upper supporting plate and the coil lower supporting plate, and the upper adhesive paper and the magnetic pole coil are mutually bonded through adhesive tapes.

Furthermore, a plurality of supporting block adjusting gaskets are fixedly connected to two sides of the coil supporting block, and the supporting block adjusting gaskets and the coil lower supporting plate are mutually fixed through screws.

The utility model has the advantages that: the utility model provides a novel magnetic pole coil of "heat dissipation wing" formula, this magnetic pole coil adopt the copper bar coiling of type section to form, including magnetic pole core, convex copper flat wire, coil bottom plate and coil upper bracket board, convex copper flat wire is according to welding each other between clockwise and the magnetic pole coil, through hot pressing integrated into one piece between coil upper bracket board, coil bottom plate and the coil, the utility model discloses a convex copper flat wire of special cross section form through welding magnetic pole coil generating line to the top and clockwise down, makes magnetic pole coil wholly present a radiating wing formula structure, obtains superior cooling effect, and this magnetic pole coil is insulating reliable, makes the simple installation, and the radiating effect is good, improves rotor cooling condition, is favorable to improving generator power density.

Drawings

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

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the local enlarged structure of the present invention.

Fig. 3 is a partially enlarged schematic view of fig. 2.

Fig. 4 and 5 are schematic views of the assembly structure of the present invention.

Fig. 6 is a schematic cross-sectional view of fig. 4.

Fig. 7 is a partially enlarged schematic view of fig. 6.

Wherein:

1. a pole core; 2. A convex copper flat wire; 3. A coil lower supporting plate;

4. a coil support block; 5. A supporting block adjusting gasket; 6. A screw;

7. epoxy glass grey cloth; 8. Epoxy glass cloth board A; 9. Epoxy glass cloth board B;

10. sealing glue; 11. A coil upper supporting plate; 12. Gluing paper;

13. an adhesive tape; 14. coil body

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that unless otherwise explicitly specified or limited, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in 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, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and 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.

Example 1:

FIG. 1 is a schematic structural diagram of the present invention, FIG. 2 is a schematic partial enlarged structural diagram of the present invention, FIG. 3 is a schematic partial enlarged structural diagram of FIG. 2, FIGS. 4 and 5 are schematic assembly structural diagrams of the present invention, FIG. 6 is a schematic sectional structural diagram of FIG. 4, FIG. 7 is a schematic partial enlarged structural diagram of FIG. 6, FIG. 1, FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6 and FIG. 7 show a novel "heat dissipation fin" type magnetic pole coil, which is formed by winding copper bars with a cross section in a shape of Chinese character 'tu', and comprises a magnetic pole core 1, a convex copper flat wire 2, a coil bottom plate 3 and a coil top plate 11, wherein the convex copper flat wire 2 is welded to the magnetic pole coil in a clockwise direction, the coil top plate 11, the coil bottom plate 3 and the coil are integrally formed by hot pressing, and the magnetic pole is sleeved outside the magnetic pole core 1, a sealing plate is arranged between the magnetic pole core 1 and the magnetic pole coil, a coil support block 4 is arranged below the coil support plate 3, the coil support block 4 and the coil support block 3 are fixedly connected with each other, the sealing plate is composed of an epoxy glass cloth plate A8 and an epoxy glass cloth plate B9, the epoxy glass cloth plate A8 and the epoxy glass cloth plate B9 are fixedly connected with each other, a gap is formed between the magnetic pole core 1 and the magnetic pole coil, the gap between the magnetic pole core 1 and the magnetic pole coil is plugged by the epoxy glass cloth plate A8 and the epoxy glass cloth plate B9 and is filled and sealed by a sealant 10, a plurality of pieces of upper sizing paper 12 for coil turn-to-turn insulation are arranged between the coil upper support plate 11 and the coil support plate 3, the upper sizing paper 12 and the magnetic pole coil are mutually bonded by a tape 13, a plurality of support block adjusting gaskets 5 are fixedly connected to two sides of the coil support block 4, the supporting block adjusting gasket 5 and the coil lower supporting plate 3 are fixed with each other through a screw 6.

The working mode is as follows: the utility model provides a novel magnetic pole coil of "heat dissipation wing" formula, magnetic pole coil adopt the copper bar of a type-convex cross-section to wind. The convex copper flat wire is welded at four corners clockwise from top to bottom for 16 turns. The coil, the coil upper supporting plate and the coil lower supporting plate are subjected to one-time hot press molding, two layers of 0.13X 41Nomex gummed paper are used as coil turn-to-turn insulation, the Nomex gummed paper is firmly adhered by a 924EU19 adhesive tape, and after the coil is finished, 189 paint is sprayed firstly, and then 188 polyester red enamel is sprayed once. Before assembling the coil, a pole body of the magnetic pole iron core is insulated by using 0.14 resorcinol epoxy glass grey cloth to wrap the pole body, the iron core and the coil are assembled in a counterweight mode, the center of the coil is consistent with that of the iron core, a mark is marked on the center line of the magnetic pole after the assembly, a gap between the coil and the iron core is tightly plugged by using a 0.15 multiplied by 165 multiplied by 3350 epoxy glass cloth plate and a 0.15 multiplied by 165 multiplied by 3350 epoxy glass cloth plate, and the gap is filled and sealed by using silicon elastic sealant. The pole coil is positioned and fixed by the coil support block and the bottom plate adjusting shim on the coil bottom plate, and GB/T68-2000 screw M10X 20 (item 6). The coil supporting block is adjusted by a lower supporting plate adjusting gasket before being fixed, the height of the coil supporting block after being fastened is not higher than that of an iron core, and a GB/T68-2000 screw (M10 multiplied by 20) is fixed by a loctite adhesive 222.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a novel magnetic pole coil of "heat dissipation wing" formula, this magnetic pole coil adopt the copper bar coiling of type-like cross-section to form, including magnetic pole core (1), convex copper flat wire (2), coil bottom plate (3) and coil upper bracket board (11), its characterized in that: the convex copper flat wire (2) is welded with a magnetic pole coil in a clockwise direction, the coil upper supporting plate (11), the coil lower supporting plate (3) and the coil are integrally formed through hot pressing, the magnetic pole coil is sleeved outside the magnetic pole iron core (1), a sealing plate is arranged between the magnetic pole iron core (1) and the magnetic pole coil, a coil supporting block (4) is arranged below the coil lower supporting plate (3), and the coil lower supporting plate (3) and the coil supporting block (4) are fixedly connected with each other.

2. The novel pole coil of "heat dissipation fin" type as claimed in claim 1, wherein: the sealing plate is composed of an epoxy glass cloth plate A (8) and an epoxy glass cloth plate B (9), and the epoxy glass cloth plate A (8) and the epoxy glass cloth plate B (9) are fixedly connected with each other.

3. The novel pole coil of "heat dissipation fin" type as claimed in claim 2, wherein: a gap is formed between the magnetic pole iron core (1) and the magnetic pole coil, and the gap between the magnetic pole iron core (1) and the magnetic pole coil is tightly plugged by the epoxy glass cloth plate A (8) and the epoxy glass cloth plate B (9) and is filled and sealed by the sealant (10).

4. The novel pole coil of "heat dissipation fin" type as claimed in claim 1, wherein: a plurality of pieces of upper sizing paper (12) used for coil turn-to-turn insulation are arranged between the coil upper supporting plate (11) and the coil lower supporting plate (3), and the upper sizing paper (12) and the magnetic pole coil are mutually bonded through adhesive tapes (13).

5. The novel pole coil of "heat dissipation fin" type as claimed in claim 1, wherein: the coil support block structure is characterized in that a plurality of support block adjusting gaskets (5) are fixedly connected to two sides of the coil support block (4), and the support block adjusting gaskets (5) and the coil lower support plate (3) are fixed to each other through screws (6).