Cast-aluminum rotor iron core of explosion-proof motor

Abstract

The utility model discloses an explosion-proof motor cast-aluminum rotor iron core, which comprises an iron core main body, the lower surface of the iron core main body is provided with a mounting groove, the inner wall of the mounting groove is fixedly connected with a mounting block, the inner wall of the mounting block is fixedly connected with an inner seat, the outer surface of the inner seat is fixedly connected with an inner blade, and the inner blade is fixedly connected with an outer blade. The inner seat comprises a mounting block, the outer surface of the mounting block is fixedly connected with an outer frame, the outer surface of the outer frame is fixedly connected with outer blades, the inner seat comprises a fixing block, the outer surface of the fixing block is fixedly connected with a limiting plate, and when the rotor core rotates, the eight inner blades generate internal axial wind in the core, so that the axial wind is generated in the core; wind enters from the heat dissipation holes in the lower end of the iron core and flows out from the heat dissipation holes in the top end of the iron core, air circulation in the iron core is accelerated, the heat dissipation speed in the iron core is increased, wind generated by the outer blades can dissipate heat and cool the exterior of the iron core, and the wind and the outer blades are matched with each other, so that the heat dissipation efficiency of the iron core can be effectively improved, and the temperature of the iron core is prevented from being too high.

Description

Technical Field

[0001] The utility model relates to the technical field of rotor cores, in particular to a cast aluminum rotor core for an explosion-proof motor. Background Art

[0002] Motor rotor: This is the rotating component in a motor. A motor consists of two parts: the rotor and the stator. It is a device used to convert electrical energy into mechanical energy and vice versa. Motor rotors are classified as either motor rotors or generator rotors.

[0003] After searching, it was found that a cast aluminum rotor core of an explosion-proof motor was disclosed in the Chinese Public Utility Model Patent Publication No. CN202798225U. When the power is turned on, the cast aluminum rotor starts to rotate, and the fan blades on the cast aluminum rotor can dissipate heat. When explosion-proof motor manufacturers use this cast aluminum rotor to produce explosion-proof motors, there is no need to add an additional fan for heat dissipation. However, only dissipating heat by setting fan blades will result in poor heat dissipation effect. The fan blades can only generate wind in the external range and cannot dissipate heat well inside the motor. Therefore, a cast aluminum rotor core with a heat dissipation structure for both the inside and outside of the motor is needed. Utility Model Content

[0004] The main purpose of the utility model is to provide an explosion-proof motor cast aluminum rotor core, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A cast aluminum rotor core for an explosion-proof motor comprises a core body, a mounting groove being formed on the lower surface of the core body, a mounting block being fixedly connected to the inner wall of the mounting groove, an inner seat being fixedly connected to the inner wall of the mounting block, inner blades being fixedly connected to the outer surface of the inner seat, an outer frame being fixedly connected to the outer surface of the outer frame, and outer blades being fixedly connected to the outer surface of the outer frame.

[0007] In order to achieve the effect of conveniently limiting the fixing position of the ring bar, as an explosion-proof motor cast aluminum rotor core of the utility model, one end of the mounting block is provided with an inner groove, and the lower surface of the core body is provided with a ring groove.

[0008] In order to achieve the effect of clamping the mounting block, as an explosion-proof motor cast aluminum rotor core of the utility model, the inner wall of the ring groove is fixedly connected with a ring bar, and the upper surface of the ring bar is provided with a clamping groove.

[0009] In order to achieve the effect of convenient heat dissipation, as an explosion-proof motor cast aluminum rotor core of the utility model, the inner wall of the core body is provided with an end face, and the lower surface of the end face is provided with a heat dissipation hole.

[0010] In order to achieve the effect of assisting the core in heat dissipation, as an explosion-proof motor cast aluminum rotor core of the utility model, the outer surface of the core body is provided with arc grooves, and the outer surface of the core body is fixedly connected with heat dissipation fins.

[0011] In order to achieve the effect of fixing the position of the shaft end block, as an explosion-proof motor cast aluminum rotor core of the utility model, a limiting groove is opened at one end of the end surface, and the inner wall of the limiting groove is fixedly connected to the limiting plug block.

[0012] In order to achieve the effect of assisting the installation of the rotating shaft, as an explosion-proof motor cast aluminum rotor core of the utility model, the lower surface of the limiting plug is fixedly connected to the shaft end block, and the inner wall of the shaft end block is provided with a rotating shaft.

[0013] In order to conveniently fix the inner seat in the mounting block, as an explosion-proof motor cast aluminum rotor core of the utility model, the inner seat includes a fixing block, and the outer surface of the fixing block is fixedly connected to a limiting plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The explosion-proof motor cast aluminum rotor core is equipped with a core body, mounting slots, mounting blocks, inner slots, inner seats, inner blades, outer frames and outer blades. When the rotor core rotates, the eight inner blades generate internal axial wind in the core. The wind enters from the heat dissipation holes at the lower end of the core and flows out from the heat dissipation holes at the top end of the core, accelerating the air circulation inside the core to increase the heat dissipation speed inside the core. The wind generated by the outer blades can dissipate heat and cool the outside of the core. The two work together to effectively improve the heat dissipation efficiency of the core and prevent the core temperature from being too high.

[0016] 2. The cast aluminum rotor core of the explosion-proof motor can increase the surface area of ​​the core through the arrangement of arc slots and heat dissipation fins, increase the contact area between the core and the air, thereby improving the thermal conductivity of the core and assisting the heat dissipation of the core. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a cast aluminum rotor core of an explosion-proof motor according to Example 1 of the utility model;

[0018] Figure 2 This is a schematic diagram of the axonometric structure of a cast aluminum rotor core of an explosion-proof motor according to Example 1 of the utility model, viewed from above;

[0019] Figure 3 This is a schematic diagram of the axonometric structure of an iron core body in a cast aluminum rotor iron core of an explosion-proof motor according to Example 1 of the present utility model;

[0020] Figure 4 This is a schematic diagram of the explosion structure of a mounting block in a cast aluminum rotor core of an explosion-proof motor according to Example 1 of the utility model;

[0021] Figure 5 This is a schematic diagram of the axonometric structure of a ring bar in a cast aluminum rotor core of an explosion-proof motor according to Example 1 of the utility model;

[0022] Figure 6 This is a schematic diagram of the axle-measurement structure of the central shaft end block of the cast aluminum rotor core of an explosion-proof motor in Example 1 of the present utility model.

[0023] In the figure: 1. Core body; 2. Mounting groove; 3. Mounting block; 4. Inner groove; 5. Inner seat; 501. Limit plate; 502. Fixing block; 6. Inner blade; 7. Outer frame; 8. Outer blade; 9. Ring groove; 10. Ring bar; 11. Slot; 12. End face; 13. Heat dissipation hole; 14. Arc groove; 15. Heat dissipation fin; 16. Limiting groove; 17. Limiting plug; 18. Shaft end block; 19. Rotating shaft. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] like Figure 1-6 As shown, an explosion-proof motor cast aluminum rotor core includes a core body 1, a mounting groove 2 is opened on the lower surface of the core body 1, a mounting block 3 is fixedly connected to the inner wall of the mounting groove 2, an inner seat 5 is fixedly connected to the inner wall of the mounting block 3, an inner blade 6 is fixedly connected to the outer surface of the inner seat 5, an outer frame 7 is fixedly connected to the outer surface of the outer frame 7, and an outer blade 8 is fixedly connected to the outer surface of the outer frame 7.

[0027] During specific use, through the arrangement of the iron core body 1, mounting groove 2, mounting block 3, inner groove 4, inner seat 5, inner blade 6, outer frame 7 and outer blade 8, there are eight mounting grooves 2 on the bottom end of the iron core body 1, and the eight mounting grooves 2 intersect with the annular groove 9. A mounting block 3 is fixed in each mounting groove 2, and each mounting block 3 is connected to the inner blade 6 and the outer blade 8 through the inner seat 5 and the outer frame 7 respectively, so that when the rotor iron core rotates, the eight inner blades 6 generate internal axial wind in the iron core, and the wind enters from the heat dissipation holes 13 at the lower end of the iron core and flows out from the heat dissipation holes 13 at the top end of the iron core, accelerating the air circulation inside the iron core to increase the heat dissipation speed inside the iron core. The wind generated by the outer blade 8 can dissipate heat and cool the outside of the iron core. The two cooperate with each other to effectively improve the heat dissipation efficiency of the iron core and avoid excessive temperature of the iron core.

[0028] In this embodiment, an inner groove 4 is formed at one end of the mounting block 3 , and an annular groove 9 is formed on the lower surface of the core body 1 .

[0029] During specific use, the ring groove 9 is provided to conveniently define the fixed position of the ring strip 10 .

[0030] In this embodiment, a ring strip 10 is fixedly connected to the inner wall of the ring groove 9 , and a clamping groove 11 is formed on the upper surface of the ring strip 10 .

[0031] During specific use, the mounting block 3 is clamped by the arrangement of the clamping slot 11 .

[0032] In this embodiment, an end surface 12 is provided on the inner wall of the core body 1 , and a heat dissipation hole 13 is provided on the lower surface of the end surface 12 .

[0033] During specific use, the heat dissipation holes 13 are provided to facilitate heat dissipation.

[0034] In this embodiment, an arc groove 14 is formed on the outer surface of the core body 1 , and a heat dissipation fin 15 is fixedly connected to the outer surface of the core body 1 .

[0035] During specific use, the heat dissipation fins 15 are provided to assist the core in dissipating heat.

[0036] In this embodiment, a limiting groove 16 is defined at one end of the end surface 12 , and a limiting insert 17 is fixedly connected to the inner wall of the limiting groove 16 .

[0037] During specific use, the position of the shaft end block 18 is fixed by setting the limiting groove 16.

[0038] In this embodiment, a shaft end block 18 is fixedly connected to the lower surface of the limiting plug block 17 , and a rotating shaft 19 is provided on the inner wall of the shaft end block 18 .

[0039] During specific use, the shaft end block 18 is provided to assist in installing the rotating shaft 19 .

[0040] In this embodiment, the inner seat 5 includes a fixing block 502 , and an outer surface of the fixing block 502 is fixedly connected to the limiting plate 501 .

[0041] During specific use, the inner seat 5 is conveniently fixed in the mounting block 3 by providing the fixing block 502 and the limiting plate 501 .

[0042] Working principle: When the rotor core rotates, the eight inner blades 6 generate internal axial wind in the core. The wind enters from the heat dissipation holes 13 at the bottom of the core and flows out from the heat dissipation holes 13 at the top of the core, accelerating the air circulation inside the core to increase the heat dissipation speed inside the core. The wind generated by the outer blades 8 can dissipate heat and cool the outside of the core.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof motor cast aluminum rotor core, comprising a core body (1), characterized in that: The lower surface of the core body (1) is provided with a mounting groove (2), the inner wall of the mounting groove (2) is fixedly connected to a mounting block (3), the inner wall of the mounting block (3) is fixedly connected to an inner seat (5), the outer surface of the inner seat (5) is fixedly connected to an inner blade (6), the outer surface of the mounting block (3) is fixedly connected to an outer frame (7), and the outer surface of the outer frame (7) is fixedly connected to an outer blade (8).

2. The explosion-proof motor cast aluminum rotor core according to claim 1, characterized in that: An inner groove (4) is provided at one end of the mounting block (3), and an annular groove (9) is provided on the lower surface of the core body (1).

3. The explosion-proof motor cast aluminum rotor core according to claim 2, characterized in that: A ring strip (10) is fixedly connected to the inner wall of the ring groove (9), and a clamping groove (11) is provided on the upper surface of the ring strip (10).

4. The explosion-proof motor cast aluminum rotor core according to claim 1, characterized in that: The inner wall of the core body (1) is provided with an end surface (12), and the lower surface of the end surface (12) is provided with a heat dissipation hole (13).

5. The explosion-proof motor cast aluminum rotor core according to claim 1, characterized in that: The outer surface of the iron core body (1) is provided with an arc groove (14), and the outer surface of the iron core body (1) is fixedly connected with a heat dissipation fin (15).

6. The explosion-proof motor cast aluminum rotor core according to claim 4, characterized in that: A limiting groove (16) is provided at one end of the end surface (12), and the inner wall of the limiting groove (16) is fixedly connected to a limiting plug block (17).

7. The explosion-proof motor cast aluminum rotor core according to claim 6, characterized in that: The lower surface of the limiting plug block (17) is fixedly connected to an axis end block (18), and the inner wall of the axis end block (18) is provided with a rotating shaft (19).

8. The explosion-proof motor cast aluminum rotor core according to claim 1, characterized in that: The inner seat (5) comprises a fixed block (502), and the outer surface of the fixed block (502) is fixedly connected to a limiting plate (501).

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