CN106849447B

CN106849447B - Rotor line shell of power generation and electric welding integrated machine

Info

Publication number: CN106849447B
Application number: CN201710197190.4A
Authority: CN
Inventors: 林朝文
Original assignee: Fujian Everstrong Lega Power Equipments Co Ltd
Current assignee: Fujian Everstrong Lega Power Equipments Co Ltd
Priority date: 2017-03-29
Filing date: 2017-03-29
Publication date: 2023-03-24
Anticipated expiration: 2037-03-29
Also published as: CN106849447A

Abstract

The invention provides a rotor line shell of a power generation and electric welding all-in-one machine, which comprises a coil and a line shell body, wherein the line shell body comprises four magnetic pole sections, eight coil grooves and a central through hole; the inner edge of each magnetic pole section extends outwards vertically to form two fixing columns, the free end of each fixing column is provided with a notch and a hook-shaped part, and the hook-shaped part faces the coil. The invention has the advantages of simple structure, less material consumption, high strength, firm and reliable coil fixation, good ventilation and heat dissipation effects and low motor temperature rise.

Description

Rotor line shell of power generation and electric welding integrated machine

Technical Field

The invention particularly relates to a rotor line shell of a power generation and electric welding all-in-one machine.

Background

The rotor line shell of the power generation and electric welding all-in-one machine is an integral type, temperature resistant and enhancement type compression molding piece, the rotor line shell 200 of the existing power generation and electric welding all-in-one machine is shown in figure 1, a wall 201 is arranged at the outer side position of the end part of each polar coil on the outer side surface 203 of the line shell, 5 reinforcing ribs 202 are further arranged on the outer wall of the wall 201, the wall 201 is connected with the outer side walls of the wire grooves 204 on two sides to form an enclosure type structure, a square enclosure wall 205 is arranged at the inner side position of the end part of a four-pole coil (not shown) on the outer side surface 203 of the line shell, a coil head-tail outgoing line fixing post 206 is arranged at the top of the enclosure wall 205, the four-pole edge of the line shell is arc-shaped and conforms to the polar arc shape of a rotor iron core. The bobbin 200 of this structure has the following disadvantages:

1. the ventilation and heat dissipation of the coil end part are poor, so that the temperature of the motor is increased, the efficiency is low, and the service life is short;

2. when the magnetic steel is installed in a wrong polarity or damaged, the magnetic steel is inconvenient to replace;

3. the coil head and tail outgoing lines have poor fixing effect and low reliability;

4. the structure is complicated, the material consumption is many, and is with high costs.

The rotor bobbin is a very important part in the rotor and is used for installing and fixing a rotor coil, the end part of the coil generates a larger centrifugal force when the rotor runs at a high speed, in order to prevent the end part of the coil from being thrown out under the action of the centrifugal force, a device with enough strength is required to be arranged at the outer side position of the end part of each pole of the coil on the outer side surface of the bobbin to block the end part of the coil, and the leading-out wires at the head and the tail of the coil are required to be firmly and reliably fixed; when the motor works, the temperature rise of the rotor is higher than that of the stator, and in order to reduce the temperature rise and improve the efficiency, the ventilation and heat dissipation conditions in the motor must be improved.

Disclosure of Invention

The invention aims to solve the technical problem of providing a rotor line shell of a power generation and electric welding integrated machine.

The invention is realized by the following steps: a rotor line shell of a power generation and electric welding integrated machine comprises a coil and a line shell body, wherein the line shell body comprises four magnetic pole sections, eight coil grooves and a central through hole, and the eight coil grooves are arranged on the left side and the right side of one magnetic pole section in a pairwise mode; the inner edge of each magnetic pole section extends outwards vertically to form two fixing columns, the free end of each fixing column is provided with a notch and a hook-shaped part, and the hook-shaped part faces the coil.

Preferably, a fan blade is arranged between the coil grooves of the two adjacent magnetic pole sections, the fan blade is positioned on the outer side surface of the line shell body, and the free end of the fan blade is inwards recessed to form a groove.

Preferably, two square blades are vertically arranged on the outer edge of each magnetic pole section, the cross section of each square blade is provided with a long side and a short side, and the short sides of the square blades are arranged towards the coil.

Preferably, the magnetic steel is also included; the outer end part of each magnetic pole section is provided with a flat edge, and the middle part of the flat edge is provided with a concave part matched with the magnetic steel.

Preferably, a convex rib is annularly arranged at the notch of each coil slot corresponding to the outer side surface of the line shell body.

Preferably, the coil slots of two adjacent pole segments are 90 ° contiguous to each other.

The invention has the advantages that: the motor has the advantages of simple structure, less material consumption, high strength, firm and reliable coil fixation, good ventilation and heat dissipation effects and low motor temperature rise.

Drawings

The invention will be further described with reference to the following examples with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a rotor case of a conventional integrated machine for generating power and welding.

Fig. 2 is one of the perspective views of the rotor wire casing of the integrated machine for generating electricity and welding of the invention.

Fig. 3 is a second perspective view of the rotor case of the integrated machine for electric power generation and welding of the present invention.

FIG. 4 is a diagram of the use state of the rotor wire casing of the integrated machine for power generation and electric welding.

Detailed Description

Referring to fig. 2, 3 and 4, a rotor bobbin 100 of a power generation and electric welding integrated machine comprises a coil 1, a bobbin body 2 and magnetic steel 3, wherein the bobbin body 2 comprises four magnetic pole sections 21, eight coil slots 22 and a central through hole 23, and the eight coil slots 22 are arranged on the left side and the right side of one magnetic pole section 21 in pairs; the inner edge of each pole segment 21 extends perpendicularly outward to form two fixing posts 24, the free end of each fixing post 24 is provided with a notch 241 and a hook 242, and the hook 242 is disposed toward the coil 1. The arrangement of the notch 241 and the hook-shaped part 242 changes the traditional design method of the hook-free structure of the fixing column 24 for the head and tail outgoing lines of the coil 1, and the outgoing lines (not shown) of the coil 1 are firmly welded with the connecting pins 41 of the collecting ring 4 after being wound for a circle through the notch 241 and the hook-shaped part 242, so that the outgoing lines cannot be separated from the fixing column 24 to cause the throwing-off phenomenon, the head and tail outgoing lines of the coil 1 can be firmly fixed, and the reliability of the product quality is improved. The coil slots 22 of two adjacent pole segments 21 adjoin one another at 90 °.

Referring to fig. 2, fig. 3 and fig. 4, a fan blade 25 is disposed between the coil slots 22 of two adjacent magnetic pole segments 21, the fan blade 25 is located on the outer side surface 2b of the bobbin case body 2, and a free end of the fan blade 25 is recessed inward to form a groove 251. The fan blades 25 are arranged, so that the internal heat dissipation effect of the motor is further improved, and the effects of reducing temperature rise and improving efficiency are great; the grooves 251 are provided for the passage and positioning of interconnections (not shown) of the coil 1 from pole to pole. Two square blades 26 are vertically arranged on the outer edge of each magnetic pole section 21, the cross section of each square blade 26 is provided with a long side 261 and a short side 262, and the short side 262 of each square blade 26 is arranged towards the coil 1. According to the design, the radial surface of the square blade 26 is wide, but the contact surface of the square blade 26 and the end part of the coil 1 is small, so that the radial strength of the square blade 26 is high, the end part of the coil 1 can be prevented from being thrown outwards under the action of centrifugal force, meanwhile, the outer side surface of the end part of the coil 1 is basically exposed in the air so as to facilitate heat dissipation, and when the rotor runs, the square blade 26 can play a role of a fan, and the ventilation and heat dissipation effects inside the motor are improved. The outer end part of each magnetic pole section 21 is provided with a flat edge 211, the middle part of the flat edge 211 is provided with a concave part 211a matched with the magnetic steel 3, and the arrangement of the concave part 211a not only saves raw materials, but also is convenient for the installation or replacement of the magnetic steel 3. A convex rib 27 is annularly arranged at the notch of each coil slot 22 corresponding to the outer side surface 2b of the line shell body 2. The setting of protruding muscle 27 has increased the intensity of line shell body 2, and protruding muscle 27 top support coil 1 tip to reduce coil 1 tip and line shell 100's area of contact, and make and produce the space between coil 1 tip and the 2 lateral surfaces 2b of line shell body, form the ventiduct and be favorable to coil 1's ventilation and heat dissipation, reach the effect that reduces the motor temperature rise, improve motor efficiency.

The invention has the following advantages:

(1) The ventilation and heat dissipation effects in the motor are obvious, and the aims of greatly reducing temperature rise and improving efficiency are fulfilled;

(2) The leading-out wires at the head and the tail of the coil 1 are fixed firmly and reliably;

(3) The material is saved, the cost is reduced, the strength is high, the structure is simple, and the appearance is unique, novel and beautiful;

(4) The magnetic steel 3 is convenient to install or replace, and the working efficiency is improved.

Claims

1. The utility model provides a electricity generation electric welding all-in-one rotor line shell, includes the coil, its characterized in that: the coil shell comprises four magnetic pole sections, eight coil grooves and a central through hole, wherein the eight coil grooves are arranged on the left side and the right side of one magnetic pole section in a pairwise manner; the inner edge of each magnetic pole section extends outwards vertically to form two fixing columns, the free end of each fixing column is provided with a notch and a hook-shaped part, and the hook-shaped part is arranged towards the coil;

two square blades are vertically arranged at the outer edge of each magnetic pole section, the cross section of each square blade is provided with a long side and a short side, and the short sides of the square blades face the coil;

the coil slots of two adjacent pole segments are adjacent to each other at 90 deg.

2. The power generation and electric welding all-in-one machine rotor line shell as claimed in claim 1, characterized in that: and a fan blade is arranged between the coil grooves of two adjacent magnetic pole sections, the fan blade is positioned on the outer side surface of the line shell body, and the free end of the fan blade is inwards sunken to form a groove.

3. The machine as claimed in claim 1, wherein: the magnetic steel is also included; the outer end part of each magnetic pole section is provided with a flat edge, and the middle part of the flat edge is provided with a concave part matched with the magnetic steel.

4. The machine as claimed in claim 1, wherein: and a convex rib is annularly arranged at the notch of each coil slot corresponding to the outer side surface of the line shell body.