CN213484607U - Novel excitation rotor structure - Google Patents

Abstract

The utility model relates to a novel excitation rotor structure relates to excitation motor's technical field, including rotor body, rotor body includes cylindric rotor core, and rotor core includes the mounting hole at middle part, and rotor core circumference equidistant is provided with a plurality of winding strips, it has the winding to wind the winding on the strip, and the one end of keeping away from the mounting hole around the strip is provided with and blocks the wing, winds the strip and coats and be stamped insulating paper, and the one end that just is located to keep away from around the strip between the adjacent winding strip is provided with the butt strip, and the one end that just is located to keep away from the butt strip around the strip between the adjacent winding strip is provided with the elastic component, the winding respectively with the elastic component, butt strip butt, the elastic component with block the intertidal zone and form the extrusion chamber, extrude the intracavity be provided with and be used for butt strip and. The application provides a novel excitation rotor structure, can be so that the excitation rotor of motor rotates the in-process at the motor high speed, and the winding is difficult loose because of the effect of centrifugal force.

Description

Novel excitation rotor structure

Technical Field

The application relates to the field of excitation motors, in particular to a novel excitation rotor structure.

Background

There are numerous types of electric machines on the market today, including an excited machine, which is usually internally provided with a rotating rotor.

Referring to fig. 6 and 7, a rotor of an excitation motor in the related art includes a rotor body 1, the rotor body 1 includes a rotor core 11, the rotor core 11 includes a mounting hole 12 in the middle for connecting with a motor shaft, the rotor core 11 includes a winding strip 13 disposed in the circumferential direction, a winding 19 can be wound on the winding strip 13, the winding strip 13 is covered with a layer of insulating paper 16, so that the winding 19 and the rotor core 11 are not easily in direct contact, and a blocking wing 14 is disposed at one end of the winding strip 13 away from the middle of the rotor core 11, so that the winding 19 is not easily separated from the winding strip 13 in the winding process or after the winding process is completed.

With respect to the above-described related art, the inventors consider that the following drawbacks exist: since the length of the winding bar 13 from the rotor core 11 to the blocking wing 14 is greater than the length of the winding 19 in the same direction, the winding 19 of the winding bar 13 may be loosened by centrifugal force during the high-speed rotation of the rotor, resulting in product failure or reduced utility.

SUMMERY OF THE UTILITY MODEL

In order to make the excitation rotor rotate the in-process at a high speed, the winding is difficult for because of the effect of centrifugal force is loose, this application provides a novel excitation rotor structure.

The application provides a novel excitation rotor structure adopts following technical scheme:

the utility model provides a novel excitation rotor structure, includes rotor body, rotor body includes cylindric rotor core, rotor core includes the mounting hole at middle part, rotor core circumference equidistant is provided with a plurality of strips of winding, it has the winding to wind the winding on the strip, the one end of keeping away from the mounting hole around the strip is provided with the blocking wing, it has the insulated paper to wind the strip coats, and is adjacent the one end that just is located to keep away from the blocking wing around the strip between the strip is provided with the butt strip, and is adjacent the one end that just is located to keep away from the butt strip around the strip between the strip is provided with the elastic component, butt strip butt respectively with elastic component, formation extrusion chamber between the wing, it is provided with in the extrusion chamber to be used for making butt strip and elastic component compress tightly the subassembly that compresses tightly the winding.

Through adopting above-mentioned technical scheme, it has the insulated paper to cover around the strip, and the winding is on around the strip and through the insulated paper not with rotor core contact, the winding both ends respectively with butt strip and elastic component butt, make elastic component and butt strip compress tightly the winding through the subassembly that compresses tightly that sets up in the extrusion intracavity, the winding is difficult for loosely coming at the rotation in-process.

Optionally, the pressing assembly is an extrusion strip in interference clamping connection in the extrusion cavity.

Through adopting above-mentioned technical scheme, through extrusion strip interference joint in the extrusion intracavity for the extrusion strip can promote the elastic component and remove towards the winding direction.

Optionally, the rotor body comprises a mounting frame comprising a mounting ring fixedly connected to one end of the extrusion strip.

Through adopting above-mentioned technical scheme, because the winding is provided with a plurality ofly, through setting up the extrusion strip on the mounting bracket, convenient while inserts several extrusion strips joint to extrusion intracavity, convenient operation.

Optionally, the abutting strip is made of an insulating elastic material.

Through adopting above-mentioned technical scheme, the butt strip is insulating material for the winding is difficult to be contacted with rotor core, and the butt strip is elastic material, makes the winding compress tightly through the extrusion strip, and the butt strip can contract, makes the winding be difficult for removing and possess the insertion that the elastic space made things convenient for the extrusion strip through elasticity.

Optionally, the elastic element includes a first elastic strip close to the upper surface of the rotor core and a second elastic strip close to the lower surface of the rotor core, and one end of the first elastic strip and one end of the second elastic strip are fixedly connected to the adjacent surface of the winding strip.

Through adopting above-mentioned technical scheme, first elastic strip and second elastic strip set up on rotor core is close to the position on two surfaces, can play the positioning action, can fix a position and can fix a position the position of stripper bar when winding wire winding, need not set up the elastic component that runs through the extrusion chamber through setting up first elastic strip and second elastic strip and can material saving's use.

Optionally, the first elastic strip and the second elastic strip are iron sheets, and the surfaces of the first elastic strip, the second elastic strip and the winding which are abutted to each other are covered with insulating layers.

Through adopting above-mentioned technical scheme, first elasticity strip and second elasticity strip are the iron sheet, and first elasticity strip and second elasticity strip are consequently good elasticity for the iron sheet, and make the elastic component be difficult for communicating rotor core and winding electricity through the insulating layer.

Optionally, the upper portions of the first elastic strip and the second elastic strip are provided with bent portions which incline upwards towards the rotor core.

Through adopting above-mentioned technical scheme, through setting up the convenient insertion of extrusion strip of portion of bending.

Optionally, the length of the extrusion strip is greater than the length of the rotor core.

Through adopting above-mentioned technical scheme, extrusion strip length is greater than rotor core's length and makes when the installation mounting bracket, and extrusion strip can peg graft to the extrusion intracavity that blocks wing and second elastic strip and form.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the winding is wound on the surface of the winding strip and is not contacted with the rotor core through insulating paper, two ends of the winding are respectively abutted against the abutting strip and the elastic piece, and the elastic piece and the abutting strip are pressed tightly by the pressing assembly arranged in the extrusion cavity, so that the winding is not easy to loosen in the rotating process;

2. arranging a plurality of extrusion strips on the mounting ring, so that the extrusion strips can be inserted into the extrusion cavity together;

3. the elastic piece has better elasticity for the iron sheet, and makes the winding not direct and the contact of iron sheet thereby be connected with rotor core through setting up the insulating layer.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is an exploded view of an embodiment of the present application showing the construction of a mounting bracket;

FIG. 3 is a schematic diagram illustrating a partial explosion of a winding installation according to an embodiment of the present application;

FIG. 4 is a partial schematic view of an embodiment of the present application showing an extrusion chamber;

FIG. 5 is a schematic diagram illustrating a partial explosion of a winding installation from another perspective in accordance with an embodiment of the present application;

fig. 6 is a schematic view of the overall structure of an excited rotor of the related art;

fig. 7 is an enlarged schematic view at a in fig. 6.

Description of reference numerals: 1. a rotor body; 11. a rotor core; 12. mounting holes; 13. winding the strip; 14. a blocking wing; 15. an elastic member; 151. a first elastic strip; 152. a second elastic strip; 16. insulating paper; 17. an abutment bar; 18. an extrusion chamber; 19. a winding; 2. a mounting frame; 21. a mounting ring; 22. the strip is extruded.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a novel excitation rotor structure. Referring to fig. 1 and 2, a novel excitation rotor structure includes rotor body 1, and rotor body 1 includes cylindric rotor core 11, and rotor core 11 middle part is offered and is used for with synchronous pivoted mounting hole 12 of motor shaft, and 11 circumference of rotor core are equidistant to encircle to be provided with the multiunit around strip 13, and the one end of keeping away from mounting hole 12 around strip 13 is provided with and blocks wing 14.

Referring to fig. 3, the surface of the winding bar 13 is covered with an insulating paper 16, and the insulating paper 16 is wound with a winding 19 made of copper. By winding the winding 19 on the insulating paper 16, the winding 19 is not directly connected to the rotor core 11, so that the two are not electrically communicated, the winding 19 and the rotor core 11 can be protected, and the motor can normally operate.

Referring to fig. 4 and 5, an elastic member 15 is fixedly attached to each of opposite surfaces of the adjacent wound strips 13, and the elastic member 15 is located at an end of the wound strip 13 adjacent to the blocking wing 14. Elastic component 15 is including being located the first elastic strip 151 that is close to rotor core 11 upper surface, and elastic component 15 is still including being located the second elastic strip 152 that is close to rotor core 11 lower surface, and first elastic strip 151 and second elastic strip 152 structure are unanimous to be the iron sheet, and covers on the surface and have the insulating layer, adopts for the enameled wire material in this embodiment. The first elastic strip 151 and the second elastic strip 152 are bent at one end and fixedly connected to the winding strip 13, and the extrusion chamber 18 is formed between the first elastic strip 151 and the barrier flap 14 and between the second elastic strip 152 and the barrier flap 14. Vertical abutting strips 17 are adhered to the rotor core 11 and between adjacent winding strips 13, the abutting strips 17 are made of insulating elastic materials, and the embodiment is preferably a rubber thin pad. The winding 19 is abutted at both ends against the abutting strips 17 and the elastic member 15, respectively.

Referring to fig. 2 and 3, a mounting frame 2 for pushing the elastic member 15 is disposed on the rotor core 11, the mounting frame 2 includes a mounting ring 21, a plurality of extrusion strips 22 are connected to the mounting ring 21 at intervals, the extrusion strips 22 correspond to the extrusion cavities 18 in one-to-one correspondence in position and number, and the extrusion strips 22 can be inserted into the extrusion cavities 18 in an interference manner to push the elastic member 15 to move toward the mounting hole 12. The extrusion bar 22 is made of an insulating hard material, such as a PP rod or an epoxy material, and the length of the extrusion bar 22 is slightly greater than that of the rotor core 11, so that the extrusion bar 22 can penetrate through the blocking wings 14 and the extrusion cavities 18 formed by the first elastic bar 151 and the second elastic bar 152. The upper portions of the first elastic strip 151, the second elastic strip 152 and the extrusion strip 22 are provided with bending surfaces which are slightly inclined upwards towards the direction of the mounting hole 12, so that the extrusion strip 22 can be conveniently inserted, and when the extrusion strip 22 is extruded, the bending surfaces can gradually become a vertical state, so that the elastic piece 15 can be fully contacted with the winding 19. By fixing the extrusion strips 22 to the mounting ring 21, different extrusion strips 22 can be inserted together into the extrusion chamber 18, which facilitates the handling process.

The implementation principle of the novel excitation rotor structure in the embodiment of the application is as follows: adhering the abutting strips 17 between the adjacent winding strips 13, covering the winding strips 13 with insulating paper 16, winding a copper winding 19 on the insulating paper 16 of the winding strips 13 through a machine table, and enabling two sides of the winding 19 to abut against the abutting strips 17 and the elastic pieces 15 respectively; by sequentially inserting the extrusion strips 22 on the mounting frame 2 into the corresponding extrusion cavities 18, the extrusion strips 22 push the elastic pieces 15 to move towards the direction close to the abutting strips 17 and compress the abutting strips 17; the windings 19 are held tight by the pressure of the pressing strips 22 and the spring force of the abutment strips 17, the windings 19 are less prone to loosening due to centrifugal forces during rotation of the rotor body 1.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a novel excitation rotor structure, includes rotor body (1), rotor body (1) includes cylindric rotor core (11), rotor core (11) are including mounting hole (12) at middle part, rotor core (11) circumference is equidistant to be provided with a plurality of strip (13) of winding, it has winding (19) to wind to twine on strip (13), the one end of keeping away from mounting hole (12) around strip (13) is provided with blocks wing (14), it has insulating paper (16) to cover on winding strip (13), its characterized in that, and is adjacent the one end that just is located around strip (13) and keeps away from around strip (13) between strip (13) is provided with butt strip (17), and is adjacent it is provided with elastic component (15) to wind between strip (13) and be located around strip (13) one end of keeping away from butt strip (17), winding (19) respectively with elastic component (15), The abutting strips (17) are abutted, an extrusion cavity (18) is formed between the elastic piece (15) and the blocking wing (14), and a pressing assembly used for enabling the abutting strips (17) and the elastic piece (15) to press the winding (19) is arranged in the extrusion cavity (18).

2. A novel excitation rotor structure according to claim 1, characterized in that: the pressing component is an extrusion strip (22) which is clamped in the extrusion cavity (18) in an interference fit manner.

3. A novel excitation rotor structure according to claim 2, characterized in that: the rotor body (1) comprises a mounting frame (2), and the mounting frame (2) comprises a mounting ring (21) fixedly connected with one end of the extrusion strip (22).

4. A novel excitation rotor structure according to claim 1, characterized in that: the abutting strip (17) is made of insulating elastic materials.

5. A novel excitation rotor structure according to claim 3, characterized in that: the elastic piece (15) comprises a first elastic strip (151) close to the upper surface of the rotor core (11) and a second elastic strip (152) close to the lower surface of the rotor core (11), and one end of the first elastic strip (151) and one end of the second elastic strip (152) are fixedly connected with the adjacent opposite surfaces of the winding strips (13).

6. A novel excitation rotor structure according to claim 5, characterized in that: the first elastic strip (151) and the second elastic strip (152) are iron sheets, and the surfaces of the first elastic strip (151), the second elastic strip (152) and the winding (19) in butt joint are covered with insulating layers.

7. A novel excitation rotor structure according to claim 6, characterized in that: and the upper parts of the first elastic strip (151) and the second elastic strip (152) are respectively provided with a bending surface which inclines upwards towards the rotor iron core (11).

8. A novel excitation rotor structure according to claim 7, characterized in that: the length of the extrusion strip (22) is larger than that of the rotor iron core (11).

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