Rotor capable of dissipating heat and generator

Abstract

The rotor capable of dissipating heat comprises an annular side plate and a bottom plate connected to one end of the annular side plate, a shaft sleeve is arranged in the middle of the bottom plate in a penetrating mode, and vent holes are formed in the bottom plate; the inner wall of the bottom plate is provided with at least one raised line, and two ends of any raised line are respectively connected with the shaft sleeve and the annular side plate, compared with the prior art that the service life of generator equipment is shortened due to the fact that radiating fins on a generator rotor are poor in radiating effect and magnetic steel and a copper wire coil are easy to overheat, the generator rotor can form radiating airflow, and the service life of the generator equipment is prolonged. A good heat dissipation effect on the magnetic steel and the copper wire coil is achieved, and the problem that the service life of generator equipment is shortened due to overheating can be effectively avoided; the generator is provided with the rotor capable of dissipating heat and has the same technical effect.

Description

Technical Field

[0001] The utility model relates to the technical field of generators, and particularly relates to a heat-dissipating rotor and a generator. Background Art

[0002] In the prior art, a generator rotor includes an annular side plate and a bottom plate connected to one end of the annular side plate. A circle of magnetic steel is arranged at intervals on the inner wall of the annular side plate. A shaft sleeve is penetrated through the middle of the bottom plate, and a rotating shaft is arranged inside the shaft sleeve. A stator is arranged inside the rotor, and the rotating shaft can drive the rotor to rotate, so as to generate an induced current in the stator coil. In order to dissipate heat from the rotor and the stator, in the prior art, heat-dissipating fins are arranged on the outer side surface of the rotor bottom plate. However, the heat-dissipating effect of this heat-dissipating structure is poor, and the magnetic steel on the rotor and the copper wire coil on the stator are prone to overheating, resulting in a shortened service life of the generator equipment. Content of the Utility Model

[0003] The first object of the utility model is to provide a heat-dissipating rotor for the problem that the heat-dissipating fins on the generator rotor in the prior art have poor heat-dissipating effect, and the magnetic steel and the copper wire coil are prone to overheating, resulting in a shortened service life of the generator equipment. The second object of the utility model is to provide a generator.

[0004] In order to achieve the above first object, the technical scheme adopted by the utility model is as follows:

[0005] A heat-dissipating rotor includes an annular side plate and a bottom plate connected to one end of the annular side plate. A shaft sleeve is penetrated through the middle of the bottom plate, and ventilation holes are arranged on the bottom plate; at least one convex strip is arranged on the inner wall of the bottom plate, and both ends of any one of the convex strips are respectively connected to the shaft sleeve and the annular side plate.

[0006] For the utility model adopting the foregoing technical scheme, when the generator starts, the convex strips on the rotor rotate, playing the role of centrifugal fan blades. Specifically, the convex strips can enable the static air between the rotor and the stator to obtain kinetic energy, drive the air to rotate, and at the same time, the air moves radially towards the annular side wall under the action of centrifugal force. After reaching the annular side wall, the air absorbs the heat on the surface of the magnetic steel, the surface of the stator core and the copper wire and then is discharged outwards. At the same time, external air continuously enters the rotor from the ventilation holes, thus forming a continuous heat-dissipating air flow; compared with the problem that the heat-dissipating fins on the generator rotor in the prior art have poor heat-dissipating effect, and the magnetic steel and the copper wire coil are prone to overheating, resulting in a shortened service life of the generator equipment, the utility model can form a heat-dissipating air flow, has a good heat-dissipating effect on the magnetic steel and the copper wire coil, and can effectively avoid the shortening of the service life of the generator equipment caused by overheating problems.

[0007] Further, the cross-section of any one of the convex strips is rectangular, and one side surface thereof is attached to the bottom plate; the central line direction of the bushing is the height direction of the convex strip, and the height of the convex strip is greater than the width; with such a setting, when the volume of the convex strip is constant, that is, when the total weight of the rotor is constant, the height of the convex strip is relatively high, which can drive more air flow and has a better heat dissipation effect.

[0008] Further, a plurality of convex strip groups are circumferentially and evenly distributed on the bottom plate, each convex strip group includes at least two parallel convex strips, and each convex strip group is axially symmetrically arranged along a certain radius of the bottom plate; with such a setting, the weight on the bottom plate is balanced, and at the same time, each convex strip can evenly strengthen the structural strength of the rotor.

[0009] Further, there are 4 convex strip groups provided on the bottom plate, and each convex strip group includes two parallel convex strips.

[0010] Further, it includes at least two convex strips, and the convex strips are all arranged radially and circumferentially evenly distributed on the bottom plate; with such a setting, the weight on the bottom plate is balanced, and at the same time, each convex strip can evenly strengthen the structural strength of the rotor.

[0011] Further, a plurality of ventilation holes are provided on the bottom plate, and at least one ventilation hole is provided on the bottom plate between any two convex strips; with such a setting, the air intake and exhaust volume of the rotor are more balanced in the circumferential direction, realizing uniform heat dissipation.

[0012] To achieve the second object, the present invention adopts the following technical solutions:

[0013] A generator, including the above-mentioned heat-dissipable rotor.

[0014] The beneficial effects of the present invention are as follows: a heat dissipation air flow can be formed, which has a good heat dissipation effect on the magnetic steel and the copper wire coil, and can effectively avoid shortening the service life of the generator equipment due to overheating problems; the convex strips can be used as reinforcing ribs to increase the structural strength of the rotor. Description of the Drawings

[0015] Figure 1 It is the front view of the heat-dissipable rotor;

[0016] Figure 2 It is the assembly schematic diagram of the heat-dissipable rotor and the stator;

[0017] Figure 3 It is for Figure 2 the exploded view of;

[0018] Figure 4 It is for Figure 2 the sectional view of (the central line of the bushing is on the section).

[0019] Markings in the figure: 01 - heat - dissipable rotor, 02 - stator, 1 - annular side plate, 2 - bottom plate, 3 - bushing, 4 - ventilation hole, 5 - rib, 6 - magnet. Detailed implementation mode

[0020] The following combines with the attached drawings to make a detailed description of the present utility model.

[0021] In order to make the purpose, technical solution and advantages of the present utility model clearer, the following further details the present utility model in combination with the attached drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] Embodiment 1. This embodiment provides a heat - dissipable rotor, as Figures 1-3 shown, including an annular side plate 1 and a bottom plate 2 connected to one end of the annular side plate 1. A bushing 3 is provided through the middle of the bottom plate 2, and ventilation holes 4 are provided on the bottom plate 2; at least one rib 5 is provided on the inner wall of the bottom plate 2, and both ends of any one rib 5 are respectively connected to the bushing 3 and the annular side plate 1; a circle of magnets 6 are arranged at intervals on the inner wall of the annular side plate 1;

[0023] The cross - section of any one rib 5 is rectangular, and one of its side surfaces is attached to the bottom plate 2; the center - line direction of the bushing 3 is the height direction of the rib 5, and the height of the rib 5 is greater than the width.

[0024] A number of rib groups are evenly distributed in a circle on the bottom plate 2. Each rib group includes at least two parallel ribs 5, and each rib group is axially symmetrically arranged along a certain radius of the bottom plate 2 itself;

[0025] There are 4 rib groups on the bottom plate 2, and each rib group includes two parallel ribs 5;

[0026] The arrangement of the ribs 5 can also be: including at least two ribs 5, the ribs 5 are all arranged radially and evenly distributed in a circle on the bottom plate 2;

[0027] There are multiple ventilation holes 4 on the bottom plate 2, and at least one ventilation hole 4 is provided on the bottom plate 2 between any two ribs 5.

[0028] When the generator starts, the ribs 5 on the rotor rotate, acting as centrifugal fan blades. Specifically, the ribs 5 can make the static air between the heat - dissipable rotor 01 and the stator 02 obtain kinetic energy, drive the air to rotate. At the same time, the action of centrifugal force makes the air move radially towards the annular side wall 1. After reaching the annular side wall 1, it absorbs the heat on the surface of the magnet 6, the surface of the stator core and the copper wire and then discharges it outward. Meanwhile, external air continuously enters the rotor from the ventilation holes 4, thus forming a continuous heat - dissipation air flow; as Figure 4As shown, the arrows in the figure indicate the flow direction of the cooling air flow. Compared with the prior art where the cooling fins on the generator rotor have poor heat dissipation effect, the magnetic steel and the copper wire coil are prone to overheating, resulting in the problem of shortened service life of the generator equipment. The utility model can form a cooling air flow, which has a good heat dissipation effect on the magnetic steel and the copper wire coil, and can effectively avoid the shortening of the service life of the generator equipment due to overheating problems. At the same time, the rib can be used as a reinforcing rib to increase the structural strength of the rotor.

[0029] Embodiment 2, a generator, comprising the heat-dissipating rotor 01 described above.

[0030] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A heat dissipating rotor, comprising an annular side plate (1) and a bottom plate (2) connected to one end of the annular side plate (1), a shaft sleeve (3) passing through the middle of the bottom plate (2), characterized in that: A vent hole (4) is provided on the bottom plate (2); at least one convex strip (5) is provided on the inner wall of the bottom plate (2); and the two ends of any convex strip (5) are respectively connected to the shaft sleeve (3) and the annular side plate (1).

2. The heat dissipating rotor according to claim 1, characterized in that: The cross section of any of the convex strips (5) is rectangular, and one side surface thereof is in contact with the bottom plate (2); the centerline direction of the shaft sleeve (3) is the height direction of the convex strip (5), and the height of the convex strip (5) is greater than the width.

3. The heat dissipating rotor according to claim 1, characterized in that: A plurality of convex strip groups are evenly distributed on the circumference of the bottom plate (2), each of the convex strip groups comprises at least two parallel convex strips (5), and each of the convex strip groups is symmetrically arranged along a certain radial axis of the bottom plate (2).

4. The heat dissipating rotor according to claim 3, characterized in that: The bottom plate (2) is provided with four convex strip groups, each of which comprises two parallel convex strips (5).

5. The heat dissipating rotor according to claim 1, characterized in that: It comprises at least two convex strips (5), and the convex strips (5) are arranged radially and evenly distributed around the circumference of the bottom plate (2).

6. The heat dissipating rotor according to any one of claims 3 to 5, characterized in that: A plurality of ventilation holes (4) are provided on the bottom plate (2), and at least one ventilation hole (4) is provided on the bottom plate (2) between any two of the convex strips (5).

7. A generator, characterized in that: A heat dissipating rotor comprising any one of claims 1-6.

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