CN215300315U

CN215300315U - Novel bracket structure

Info

Publication number: CN215300315U
Application number: CN202023177394.8U
Authority: CN
Inventors: 沈晓厅
Original assignee: Teco Westinghouse Motor Co
Current assignee: Teco Westinghouse Motor Co
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-12-24
Anticipated expiration: 2030-12-25

Abstract

The utility model provides a novel bracket structure, which comprises an annular fixing ring, a conical arc surface and heat dissipation ribs, wherein the annular fixing ring, the conical arc surface and the heat dissipation ribs are arranged outside a motor winding, the large diameter surface of the conical arc surface is integrally provided with the annular fixing ring, the small diameter surface is connected with a rotating shaft through a flange, the heat dissipation ribs are arranged on the conical arc surface, the heat dissipation ribs are provided in plurality, and the space among the heat dissipation ribs forms a guiding effect on the wind path through grooves; the end of the annular fixing ring, which is far away from the conical arc surface, is provided with a mounting hole in the horizontal direction. The utility model improves the design of avoiding the position of the inner fan and increases the upper limit of the motor power design; the inclined structure can generate component forces in different directions when stressed, and the strength is higher; when the inclined structure meets the non-load side outer fan wind path, the wind can be guided to the heat dissipation ribs of the base better, and the heat dissipation effect is better; the oblique structure, the material is more saved than the L type, and light in weight, the handling assembly is more convenient.

Description

Novel bracket structure

Technical Field

The utility model relates to a field is linked to full close motor rotor support and frame, especially relates to a novel bracket structure.

Background

Existing brackets are generally classified into a bar-type bracket and an L-type bracket:

1. the straight plate type bracket structure has the following defects: the length of a motor winding is limited, and the upper limit of the motor power is limited;

2. l-shaped bracket disadvantages: low strength, high weight and waste of materials.

As shown in fig. 3, the non-load side structure of the common full-density motor: 1. outer fan 2, bracket 3, inner fan 4, motor winding

Generally, the inner fan of the motor needs to be deviated from the winding of the motor and is closer to a non-load side bracket because the inner fan needs to induce air to cool the winding of the motor.

1. The dotted line part of the straight-plate bracket is too close to the inner fan, so that the motor winding is limited to be lengthened, and the design of a higher-power motor is limited;

l-shaped bracket the illustrated bracket uses an L-shaped design, avoiding opening the inner leaf, but this configuration:

a. the material usage is increased;

b. the space between the bracket and the motor winding is wasted;

c. the bracket strength is mainly born by the angle R at the L-folded angle, and the strength is lower.

The published Chinese invention patent, application number CN201811589048.5, patent name: bracket, motor and fan motor, application date: 2018-12-25, the present invention relates to a bracket, a motor and a fan motor, the bracket is a bracket of an inner rotor type motor, the bracket has: a stator including an annular core back portion centered on a central axis and a plurality of teeth extending radially inward from an inner circumferential surface of the core back portion; a base part which is in contact with an end face of one axial side of the core back part; and a standing portion connected to the base portion, extending to the other side in the axial direction, and disposed radially outside the core back portion. The standing portion has a plurality of protruding portions that protrude radially inward and at least a portion of which contacts the radially outer surface of the core back, and the protruding portions have: an opposing surface portion radially inwardly opposing a radially outer surface of the core back portion; and a holding portion protruding radially inward from the opposing surface portion.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a novel bracket structure, which comprises an annular fixing ring 1, a conical arc surface 2 and heat dissipation ribs 3, wherein the annular fixing ring 1, the conical arc surface 2 and the heat dissipation ribs 3 are arranged outside a motor winding, the large-diameter surface of the conical arc surface 2 is integrally provided with the annular fixing ring 1, the small-diameter surface is connected with a rotating shaft through a flange, the conical arc surface 2 is provided with the heat dissipation ribs 3, the heat dissipation ribs 3 are provided with a plurality of grooves 4, and the grooves 4 are formed among the heat dissipation ribs 3 to guide the wind path;

and one end, far away from the conical arc surface 2, of the annular fixing ring 1 is provided with a mounting hole 5 in the horizontal direction.

Preferably, the angle of inclination of the conical arc surface 2 is 15 ° to 45 °.

Preferably, the conical arc surface 2 is provided at the end on the non-load side, close to the fan provided on the outside.

Preferably, the heat dissipation rib 3 is provided with a first heat dissipation area 31 and a second heat dissipation area 32, the number of the first heat dissipation area 31 and the number of the second heat dissipation area 32 are two, and the first heat dissipation area 31 and the second heat dissipation area 32 are arranged at intervals.

Preferably, first radiating area 31 is through the equidistant setting of a plurality of parallel arrangement's heat dissipation muscle 3, second radiating area 32 includes the air vent 33 of a plurality of parallel arrangement's heat dissipation muscle 3 and equidistant setting, air vent 33 sets up the one side near the flange.

Preferably, the mounting holes 5 are provided in plurality, and the plurality of mounting holes are arranged at equal intervals.

Preferably, four mounting holes 5 are provided.

The utility model has the advantages that:

1. the position of an inner fan is avoided, and the upper limit of the design of the motor power is increased;

2. the inclined structure can generate component forces in different directions when stressed, and the strength is higher;

3. when the inclined structure meets the non-load side outer fan wind path, the wind can be guided to the heat dissipation ribs of the base better, and the heat dissipation effect is better;

4. the oblique structure, the material is more saved than the L type, and light in weight, the handling assembly is more convenient.

Drawings

FIG. 1 is a block diagram of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a prior art block diagram;

in the figure, the position of the upper end of the main shaft,

1. an annular securing ring; 2. a conical arc surface; 3. the heat dissipation ribs 31, the first heat dissipation area 32, the second heat dissipation area 33 and the air vents; 4. a trench; 5. and (7) installing holes.

Detailed Description

In order to make the technical solutions of the present invention better understood and make the above features, objects, and advantages of the present invention more comprehensible, the present invention is further described with reference to the following examples. The examples are intended to illustrate the invention only and are not intended to limit the scope of the invention.

As shown in fig. 1-2, the present invention comprises: the air-cooling fan comprises an annular fixing ring 1, a conical arc surface 2 and heat dissipation ribs 3, wherein the annular fixing ring 1, the conical arc surface 2 and the heat dissipation ribs 3 are installed on the outer side of a motor winding, the annular fixing ring 1 is integrally arranged on the large-diameter surface of the conical arc surface 2, the small-diameter surface is connected with a rotating shaft through a flange, the heat dissipation ribs 3 are arranged on the conical arc surface 2, the heat dissipation ribs 3 are arranged in plurality, and grooves 4 are formed among the heat dissipation ribs 3 at intervals to guide an air path;

When the motor is used, in order to increase the upper limit of the power design of the motor, the bearing part needs to be far away from the inner fan, but the space between the bracket and the motor winding can be used for the bracket, so that the waste of materials caused by an L-shaped structure can be reduced; the original straight plate type or L type is changed into an inclined type structure:

on one hand, the arrangement of the bracket structure avoids the position of the inner fan, and the upper limit of the design of the motor power is increased;

on the other hand, the inclined structure saves more materials compared with the L shape, has lighter weight and is more convenient to hoist and assemble;

on the other hand, compared with the original L-shaped structure, the material modeling is rough, and the weight is reduced by about 10%;

on the other hand, the motor power per liter design can be met;

on the other hand, the heat dissipation and temperature rise of the motor reach the design expectation;

on the other hand, the motor vibration test meets the requirements, and the bracket supporting strength meets the design requirements.

In the present embodiment, the angle of inclination of the conical circular arc surface 2 is preferably 15 ° to 45 °.

By the structure, the bracket is of an inclined structure, and the inclination angle can be adjusted according to the requirement of the motor.

In the present embodiment, the tapered arc surface 2 is preferably provided at one end on the non-load side, near the fan provided on the outside.

With the structure, the grooves are formed between the external radiating ribs of the bracket, and the wind path can be effectively guided on the non-load side; when the oblique structure meets the non-load side outer fan wind path, the wind can be better guided to the heat dissipation ribs of the base, and the heat dissipation effect is better.

In this embodiment, it is preferable that the heat dissipation rib 3 is provided with two first heat dissipation areas 31 and two second heat dissipation areas 32, and the first heat dissipation areas 31 and the second heat dissipation areas 32 are arranged at intervals.

In this embodiment, it is preferable that the first heat dissipation area 31 is disposed at equal intervals by a plurality of heat dissipation ribs 3 disposed in parallel, the second heat dissipation area 32 includes a plurality of heat dissipation ribs 3 disposed in parallel and air vents 33 disposed at equal intervals, and the air vents 33 are disposed at one side close to the flange.

By the structure, when the inclined structure meets the non-load side outer fan air path, the air can be better guided to the heat dissipation ribs of the base, and the heat dissipation effect is better.

In this embodiment, it is preferable that the mounting holes 5 are provided in plural numbers, and the plural mounting holes are provided at equal intervals.

In the present embodiment, four mounting holes 5 are preferably provided.

By means of the structure, due to the fact that the inclined structure can generate component forces in different directions when stressed, strength is high, stability of products during installation is guaranteed through the arrangement of the mounting holes, and fixing capacity of the whole device can be improved.

The above-described embodiments are merely illustrative of the principles and utilities of the present patent application and are not intended to limit the present patent application. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of this patent application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of this patent application.

Claims

1. The novel bracket structure is characterized by comprising an annular fixing ring (1), a conical arc surface (2) and heat dissipation ribs (3), wherein the annular fixing ring (1), the conical arc surface (2) and the heat dissipation ribs (3) are arranged on the outer side of a motor winding, the large-diameter surface of the conical arc surface (2) is integrally provided with the annular fixing ring (1), the small-diameter surface is connected with a rotating shaft through a flange, the conical arc surface (2) is provided with the heat dissipation ribs (3), the heat dissipation ribs (3) are provided with a plurality of heat dissipation ribs, and grooves (4) are formed among the heat dissipation ribs (3) at intervals to guide a wind path;

and one end, far away from the conical arc surface (2), of the annular fixing ring (1) is provided with a mounting hole (5) in the horizontal direction.

2. The novel carrier structure of claim 1, wherein: the inclination angle of the conical arc surface (2) is 15-45 degrees.

3. The novel carrier structure of claim 2, wherein: the conical arc surface (2) is arranged at one end of the non-load side and is close to the fan arranged outside.

4. The novel bracket structure of claim 3, characterized in that: the heat dissipation rib (3) is provided with a first heat dissipation area (31) and a second heat dissipation area (32), the first heat dissipation area (31) and the second heat dissipation area (32) are both provided with two, and the first heat dissipation area (31) and the second heat dissipation area (32) are arranged at intervals.

5. The novel carrier structure of claim 4, wherein: first radiating area (31) are through the equidistant setting of a plurality of parallel arrangement's heat dissipation muscle (3), second radiating area (32) are including heat dissipation muscle (3) of a plurality of parallel arrangement and air vent (33) of equidistant setting, air vent (33) set up the one side near the flange.

6. The novel carrier structure of claim 5, wherein: the mounting holes (5) are arranged in a plurality of equidistant positions.

7. The novel carrier structure of claim 6, wherein: the number of the mounting holes (5) is four.