CN218301050U

CN218301050U - Generator rotor structure

Info

Publication number: CN218301050U
Application number: CN202222897651.8U
Authority: CN
Inventors: 高延芳; 范玉吉; 张勇; 石学宇
Original assignee: Taian Yiwanfu Electric Machinery Co ltd China
Current assignee: Taian Yiwanfu Electric Machinery Co ltd China
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-01-13
Anticipated expiration: 2032-11-01

Abstract

The utility model relates to a generator heat dissipation technical field specifically is a generator rotor structure, include: including the rotor punching, the rotor punching is provided with a plurality of, and it is all as an organic whole through connecting piece axial connection, and adjacent rotor punching interval is formed with the heat dissipation intermediate layer, and the outside of ring body has set firmly four rod-shaped bodies, and the ring body outside of each rotor punching adds and is equipped with inboard radiator unit, and inboard radiator unit is for rotor punching axial motion, and the beneficial technological effect of this device is: by arranging a plurality of rotor punching sheets, the radial heat dissipation effect between adjacent rotor punching sheets is improved by utilizing the heat dissipation interlayer, and the radial heat dissipation effect inside the rotor punching sheets is improved through the heat dissipation through holes; the inner side heat dissipation assembly is additionally arranged, and the longitudinal and transverse discharge of heat at the coil is realized through the first conduction port and the second conduction port respectively, so that the heat dissipation effect at the coil is further improved; the heat of the air is reduced by additionally arranging the baffling grooves and the radiating fins on two sides of the radiating interlayer.

Description

Generator rotor structure

Technical Field

The utility model relates to a generator heat dissipation technical field specifically is a generator rotor structure.

Background

Electric energy is one of the most important energy sources in modern society. The generator is mechanical equipment for converting energy in other forms into electric energy, and is driven by a water turbine, a steam turbine, a diesel engine or other power machinery to convert energy generated by water flow, air flow, fuel combustion or atomic fission into mechanical energy to be transmitted to the generator, and then the mechanical energy is converted into electric energy by the generator. The generator has wide application in industrial and agricultural production, national defense, science and technology and daily life. The rotor of the alternating-current generator is formed by laminating silicon steel sheets.

The heat of the generator is converted from the loss generated in the operation into heat energy, and is mainly and intensively distributed on the winding and the iron core. In order to ensure that the temperature rise of the generator does not exceed a certain value, the loss generated by the generator is reduced on one hand, and the heat dissipation capacity of the generator is increased on the other hand, and particularly the rotor is required to have high-efficiency heat dissipation capacity; the existing rotor is laminated into a whole, but the internal heat dissipation effect is poor, a plurality of coils are additionally arranged on the rotor, and accumulated heat is easily generated between the coils and the rotor punching sheet, so that the local temperature is overhigh.

The patent number is CN208904790U the utility model discloses an interior heat dissipation rotor, fold including pivot, towards the piece and press iron core, preceding baffle, axle with circlip, bearing, backplate, magnetic shoe and small-size fan. The lamination iron core is formed by laminating a plurality of first rotor laminations and second rotor laminations, a shaft hole matched with the rotating shaft is formed in the center of each first rotor lamination, a limiting protrusion is arranged on the shaft hole, and a plurality of magnetic shoe grooves which are arranged at equal intervals are formed in the periphery of each first rotor lamination; the rotor is beneficial to the heat dissipation and high-efficiency transmission of the whole rotor, and the weight-reducing gap between every two adjacent magnetic shoe grooves greatly reduces the weight of the whole rotor and is beneficial to the high-efficiency rotation of the rotor; however, the coil outside the rotor is prone to dust accumulation in addition to heat accumulation, and if the heat is directly dissipated by a fan, secondary pollution to the working environment is easily caused by the dust.

SUMMERY OF THE UTILITY MODEL

The utility model provides a generator rotor structure, the concrete implementation mode as follows:

the utility model provides a generator rotor structure, includes the rotor punching, the rotor punching is provided with a plurality of, and it is as an organic whole all through connecting piece axial connection, and adjacent rotor punching interval is formed with the heat dissipation intermediate layer, and the rotor punching comprises rod-shaped body and ring body, and the outside of ring body has set firmly four rod-shaped bodies, and the ring body outside of each rotor punching adds and is equipped with inboard radiator unit, and inboard radiator unit is for rotor punching axial motion.

Further, inboard radiator unit's body is the fan-shaped structure that the inboard was equipped with the cavity to outwards be the conduction form, the cavity inboard is two-layer upper and lower through the filter screen separation, and the top on upper strata is equipped with the cover body, and a plurality of first conduction mouths have been seted up to the bottom on lower floor, and first conduction mouth crosses with the heat dissipation intermediate layer.

Furthermore, the front and back of the rotor sheet are of the same structure, taking the front as an example, the front of the rod-shaped body is provided with a plurality of deflection grooves in parallel along the length direction, the two ends of the deflection grooves are communicated, the top of the inner side of the deflection grooves is provided with a plurality of radiating fins, and the radiating fins are arranged at equal intervals along the length direction of the deflection grooves.

Furthermore, a plurality of heat dissipation through holes are arranged in parallel on the inner side of the rod-shaped body along the length direction of the rod-shaped body, and the width of each heat dissipation through hole is larger than the depth of the diversion groove.

Furthermore, a limiting groove is formed in the outer peripheral surface of the annular body, the limiting groove is axially communicated, limiting protrusions are fixedly arranged on two sides of the bottom of the inner side heat dissipation assembly body, and the limiting protrusions are axially slidably connected with the limiting grooves of the annular bodies.

Furthermore, the inner side of the limiting bulge is provided with a conducting axial passage, the bottom of the lower layer of the cavity of the inner side heat dissipation assembly is further provided with a plurality of second conducting openings, and the second conducting openings are crossed with the axial passage respectively.

Furthermore, the cover body is U-shaped, is reversely buckled at the top of the upper layer of the cavity of the inner side heat dissipation assembly, and is provided with a plurality of waist-shaped holes which are communicated on the whole body.

Furthermore, the front surface and the back surface of the rotor punching sheet are provided with mounting holes, and two ends of the connecting piece are connected with the mounting holes in a threaded mode.

The utility model has the beneficial technical effects that:

1, the utility model discloses in through setting up a plurality of rotor punching, utilize the heat dissipation intermediate layer to improve the radial radiating effect between the adjacent rotor punching, improved the radial radiating effect inside the rotor punching through the heat dissipation through-hole;

2, the utility model is additionally provided with the inner side heat radiation component, and the longitudinal and transverse discharge of the heat at the coil is realized through the first conduction port and the second conduction port respectively, so that the heat radiation effect at the coil is further improved;

3, the utility model discloses simple structure through install baffling groove and fin additional in heat dissipation interbedded both sides, has reduced the heat of deriving the air.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of the explosion structure of the present invention;

FIG. 3 is a schematic sectional view of the structure of the present invention;

fig. 4 is a schematic structural view of a rotor sheet in the present invention;

FIG. 5 is a schematic cross-sectional view of a rotor sheet structure of the present invention;

fig. 6 is a schematic structural view of the middle-inner side heat dissipation assembly of the present invention;

fig. 7 is a sectional view of the structure of the middle-inner side heat dissipation assembly of the present invention.

Description of reference numerals:

1. a rotor punching sheet, 2, an inner side heat radiation component, 3, a connecting piece, 4 and a heat radiation interlayer,

101. a rod body 102, an annular body 103, a heat dissipation through hole 104, a mounting hole 105, a baffle groove 106, a heat dissipation fin 107 and a limiting groove,

201. the device comprises a cover body 202, a filter screen 203, a limiting bulge 204, a first conduction port 205, an axial passage 206 and a second conduction port.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings and examples:

it should be noted that the structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, and any modification of the structure, change of the ratio relationship or adjustment of the size should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the efficacy that the present invention can produce and the purpose that the present invention can achieve.

Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

Embodiment 1, combine fig. 1 to 5, this embodiment discloses a generator rotor structure, including rotor punching 1, rotor punching 1 is provided with a plurality of, and it is as an organic whole all through 3 axial connections of connecting piece, and adjacent rotor punching 1 interval is formed with heat dissipation intermediate layer 4, through with the rotor structure split a plurality of in order to strengthen the radiating effect.

The rotor punching sheet 1 is composed of a rod-shaped body 101 and an annular body 102, four rod-shaped bodies 101 are fixedly arranged on the outer side of the annular body 102, the front surface and the back surface of the rotor punching sheet 1 are identical in structure, taking the front surface as an example, a plurality of baffling grooves 105 are arranged in parallel on the front surface of each rod-shaped body 101 along the length direction of the rod-shaped body, two ends of each baffling groove 105 are communicated, mounting holes 104 are formed in the front surface and the back surface of the rotor punching sheet 1, two ends of a connecting piece 3 are connected to the mounting holes 104, and heat in the heat dissipation interlayer 4 in the structure can penetrate through the baffling grooves 105 to be discharged outwards.

The top of the inner side of the deflection groove 105 is provided with a plurality of radiating fins 106, each radiating fin 106 is arranged along the length direction of the deflection groove 105 at equal distance, and the radiating fins 106 in the structure can cool the hot air in the deflection groove 105.

The inner side of the rod-shaped body 101 is provided with a plurality of heat dissipation through holes 103 in parallel along the length direction, the width of each heat dissipation through hole 103 is larger than the depth of each deflection groove 105, the heat dissipation through holes 103 in the structure radiate heat inside the rotor sheet 1, and the deflection grooves 105 radiate heat between the adjacent rotor sheets 1 in the radial direction.

The specific implementation process comprises the following steps: when the rotor generates heat, the heat at the coil is discharged outwards in the radial direction through the heat dissipation interlayers 4; the heat of rotor center department is radially discharged by heat dissipation through-hole 103, simultaneously because the bore of heat dissipation through-hole 103 is great, the circulation of air effect is better, and then its inside heat is lower, consequently can carry out the heat exchange through the mode of contact and the too high air of temperature in baffling groove 105, and then promote the radiating effect in the heat dissipation intermediate layer 4.

Embodiment 2, with reference to fig. 4, 6, and 7, based on embodiment 1, this embodiment further provides a generator rotor structure, further including an inner heat dissipation assembly 2, where the outer side of the annular body 102 of each rotor sheet 1 is additionally provided with the inner heat dissipation assembly 2, and the inner heat dissipation assembly 2 is axially movable relative to the rotor sheet 1, and in this structure, the inner heat dissipation assembly 2 may clean and collect dust deposited by the coil, and also has a heat dissipation effect on the position of the coil.

The body of inboard radiator unit 2 is the fan-shaped structure that the inboard was equipped with the cavity to outwards be the form of switching on, the cavity inboard is separated for upper and lower two-layer through filter screen 202, and the top on upper strata is equipped with the cover body 201, and a plurality of first conduction openings 204 have been seted up to the bottom on lower floor, and first conduction opening 204 crosses with heat dissipation intermediate layer 4, and first conduction opening 204 can be with the heat of coil department by heat dissipation intermediate layer 4 department radial discharge in this structure.

The outer peripheral surface of the ring body 102 is provided with a limiting groove 107, the limiting groove 107 is axially communicated, two sides of the bottom of the body of the inner side heat dissipation assembly 2 are fixedly provided with limiting protrusions 203, the limiting protrusions 203 in the structure are axially slidably connected with the limiting grooves 107 of the ring bodies 102, and the inner side heat dissipation assembly 2 can be periodically drawn out to clean dust accumulated in the inner side heat dissipation assembly.

The inner side of the limiting protrusion 203 is provided with a conducting axial passage 205, the bottom of the lower layer of the cavity of the inner side heat dissipation assembly 2 is further provided with a plurality of second conduction openings 206, the second conduction openings 206 are respectively intersected with the axial passage 205, and the axial passage 205 in the structure can axially discharge heat at the coil.

The cover body 201 is in a U shape, is reversely buckled at the top of the upper layer of the cavity of the inner side heat dissipation assembly 2, and is provided with a plurality of communicated waist-shaped holes on the whole body, and the U-shaped cover body 201 in the reverse buckling shape in the structure can improve the contact area of heat absorption and the area of heat exchange.

Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, and that the scope of the invention is defined by the appended claims.

Claims

1. The utility model provides a generator rotor structure, includes rotor punching (1), its characterized in that:

the rotor punching sheets (1) are provided with a plurality of parts which are axially connected into a whole through connecting pieces (3), heat dissipation interlayers (4) are formed at intervals between adjacent rotor punching sheets (1),

the rotor punching sheet (1) is composed of rod-shaped bodies (101) and annular bodies (102), four rod-shaped bodies (101) are fixedly arranged on the outer side of each annular body (102), an inner side heat dissipation assembly (2) is additionally arranged on the outer side of each annular body (102) of each rotor punching sheet (1), and the inner side heat dissipation assemblies (2) can axially move relative to the rotor punching sheets (1).

2. The generator rotor structure according to claim 1, wherein the body of the inner heat sink assembly (2) is a fan-shaped structure with a cavity inside and is outwardly connected, the inside of the cavity is divided into an upper layer and a lower layer by a filter screen (202), the top of the upper layer is provided with a cover body (201), the bottom of the lower layer is provided with a plurality of first connecting openings (204), and the first connecting openings (204) are intersected with the heat sink interlayer (4).

3. The generator rotor structure according to claim 2, wherein the front and back of the rotor sheet (1) are the same, and taking the front as an example, the front of the rod-shaped body (101) is provided with a plurality of deflection grooves (105) in parallel along the length direction thereof, and two ends of the deflection grooves (105) are conducted,

the top of the inner side of the diversion groove (105) is provided with a plurality of radiating fins (106), and the radiating fins (106) are equidistantly distributed along the length direction of the diversion groove (105).

4. The generator rotor structure according to claim 3, wherein the inner side of the rod-shaped body (101) is provided with a plurality of heat dissipation through holes (103) in parallel along the length direction, and the width of the heat dissipation through holes (103) is larger than the depth of the diversion grooves (105).

5. The generator rotor structure according to claim 2, wherein a limit groove (107) is formed on the outer circumferential surface of the annular body (102), and the limit groove (107) is axially conducted,

and limiting bulges (203) are fixedly arranged on two sides of the bottom of the inner side heat dissipation assembly (2), and the limiting bulges (203) are axially and slidably connected with the limiting grooves (107) of the annular bodies (102).

6. The generator rotor structure according to claim 5, wherein the inner side of the limiting protrusion (203) is provided with a conductive axial passage (205), the bottom of the lower layer of the cavity of the inner heat sink assembly (2) is further provided with a plurality of second conduction openings (206), and the second conduction openings (206) are respectively intersected with the axial passage (205).

7. The generator rotor structure according to claim 2, wherein the cover body (201) is U-shaped, and is inverted on the top of the upper layer of the cavity of the inner heat sink assembly (2), and has a plurality of conductive kidney-shaped holes formed on its circumference.

8. The generator rotor structure according to claim 1, wherein mounting holes (104) are formed in the front and back surfaces of the rotor sheet (1), and two ends of the connecting piece (3) are connected to the mounting holes (104) in a threaded manner.