Low-loss rotor core

Abstract

The utility model discloses a low-loss rotor core which comprises an installation pipe, a fan is fixedly arranged in the middle of one side of the installation pipe, a main body is arranged on the outer surface of the middle of the installation pipe, a ventilation groove is formed in the middle of the installation pipe and located on the inner side of the main body, and a rotating shaft is fixedly arranged in the middle of the fan and located on the inner side of the main body. And a mounting frame is fixedly arranged on the outer surface of the rotating shaft, the mounting pipe penetrates through the ventilation groove, and the ventilation groove is obliquely arranged and used for feeding air entering the mounting pipe into the inner side of the main body. The low-loss rotor iron core provided by the utility model has the advantages that when the device is used, air can be blown into the rotor and the stator while the outside of the device is cooled; according to the design, when the rotor rotates, the outer side and the inner side of the device can be cooled at the same time, heat loss of the rotor is further reduced, and finally the effects of prolonging the service life of the device and reducing the loss of the rotor are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor rotors, in particular to a low-loss rotor core. Background Art

[0002] In the patent application with application publication number 201921031887.5, it includes a circular iron sheet, the outer surface of the circular iron sheet is provided with a plurality of first slots of equal curvature, a winding foot is fixedly installed in the first slot by a fixing mechanism, the front end surface of the winding foot is wound with winding wire, and the rear end surface of the winding foot is provided with a first through hole, the fixing mechanism is two, and the two fixing mechanisms are fixedly connected by a connecting piece, the fixing mechanism includes a first pressing piece, a second locking bolt and a second pressing piece, the first pressing piece and the second pressing piece are connected to each other by a second locking bolt, and the second locking bolt is adapted to the first through hole. Advantages are: the utility model has a simple structure, and by setting the stator core as a combination of the circular iron sheet and the winding foot, it greatly facilitates people to wind the stator, and by setting the fixing mechanism and adjusting the connecting piece, the winding foot can be fixed to the circular iron sheet, with good fixing effect and convenient installation and disassembly, which not only improves the efficiency of stator assembly, but also facilitates people to maintain the stator core in the later stage.

[0003] In the prior art including the above-mentioned patents, there is no heat dissipation structure, which makes it difficult to reduce the heat loss of the Zhunazhi during operation. Utility Model Content

[0004] The purpose of the present invention is to provide a low-loss rotor core to solve the problem in the above-mentioned background technology that the heat loss of the core cannot be reduced.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-loss rotor core, comprising a mounting tube, a fan fixedly provided in the middle of one side of the mounting tube, a main body provided on the outer surface of the middle part of the mounting tube, a ventilation groove opened in the middle of the mounting tube, and the ventilation groove is located on the inner side of the main body, a rotating shaft fixedly provided in the middle of the fan, and a mounting frame fixedly provided on the outer surface of the rotating shaft.

[0006] Furthermore, the ventilation slot passes through the installation pipe, and the ventilation slot is arranged obliquely to send the air entering the installation pipe into the main body.

[0007] Furthermore, the outer surface of the rotating shaft is fixedly connected to the mounting tube, the mounting frame is located at the end of the rotating shaft away from the fan, the mounting frame is composed of a disc and a ring, and fan blades are arranged in the middle of the mounting frame.

[0008] Furthermore, one end of the fan blade is rotatably connected to the mounting frame, and one end of the fan blade is the center of the circle and is connected to the mounting frame. The outer surface of the mounting frame is located on one side of the fan blade and a slide groove is provided. The slide groove is an arc setting, and the center of the arc coincides with the connection point of the fan blade.

[0009] Furthermore, a gear ring is rotatably provided on the outer side of the disc of the mounting frame, and a mounting ring is provided on the middle outer surface of the gear ring. The mounting ring is fixedly connected to the mounting frame, and a mounting plate is fixedly provided on one side of the mounting ring. A thread is provided inside the other end of the mounting plate, and a bolt is provided inside the other end of the mounting plate through threaded engagement.

[0010] Furthermore, a socket is opened on one side of the bolt through the gear ring, and the bolt cooperates with the socket to fix the gear ring. A connecting rod is fixed on the side of the fan blade close to the slide groove, and the connecting rod passes through the slide groove on one side and cooperates with the gear ring. When the gear ring rotates, the teeth on its outer side can push the connecting rod to change the angle of the fan blade.

[0011] Furthermore, the connection between the fan blade and the mounting ring is clamped by a mounting frame.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the low-loss rotor core is reasonable and has the following advantages:

[0013] (1) During use, the device can blow air into the rotor and stator while cooling the outside of the device. This design can cool the outside and inside of the device while the rotor is rotating, thereby reducing the heat loss of the rotor and ultimately achieving the effect of extending the service life of the device and reducing rotor loss.

[0014] (2) When the cooling component is working, workers can change the air intake according to the ambient temperature. In this way, the air blowing to the outside and inside of the device can be increased or decreased accordingly, thus improving the adaptability of the device and ensuring that it can always maintain a suitable working temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the installation pipe of the utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the mounting frame of the utility model;

[0018] Figure 4 For this utility model Figure 3 Schematic diagram of the structure enlarged at point A in the middle.

[0019] In the figure: 1. Mounting tube; 2. Main body; 3. Fan; 4. Ventilation slot; 5. Rotating shaft; 6. Mounting frame; 7. Fan blade; 8. Slide slot; 9. Gear ring; 10. Mounting ring; 11. Mounting plate; 12. Socket; 13. Bolt; 14. Connecting rod. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-4 , a technical solution provided by the utility model:

[0022] In this embodiment, a low-loss rotor core includes a mounting tube 1, a fan 3 is fixedly installed in the middle of one side of the mounting tube 1, a main body 2 is provided on the outer surface of the middle part of the mounting tube 1, a ventilation groove 4 is opened in the middle of the mounting tube 1, and the ventilation groove 4 is located on the inner side of the main body 2, a rotating shaft 5 is fixedly installed in the middle of the fan 3, and a mounting bracket 6 is fixedly installed on the outer surface of the rotating shaft 5.

[0023] In this embodiment, the ventilation slot 4 passes through the installation tube 1 . The ventilation slot 4 is arranged obliquely to send the air entering the installation tube 1 into the main body 2 .

[0024] In this embodiment, the outer surface of the rotating shaft 5 is fixedly connected to the mounting tube 1, and the mounting frame 6 is located at the end of the rotating shaft 5 away from the fan 3. The mounting frame 6 consists of a disc and a ring, and a fan blade 7 is arranged in the middle of the mounting frame 6.

[0025] In this embodiment, one end of the fan blade 7 is rotatably connected to the mounting frame 6, and one end of the fan blade 7 is the center of the circle and is connected to the mounting frame 6. The outer surface of the mounting frame 6 is located on one side of the fan blade 7 and is provided with a slide groove 8. The slide groove 8 is set as an arc, and the center of the arc coincides with the connection point of the fan blade 7.

[0026] In this embodiment, a gear ring 9 is rotatably provided on the outer side of the disc of the mounting frame 6, and a mounting ring 10 is provided on the middle outer surface of the gear ring 9. The mounting ring 10 is fixedly connected to the mounting frame 6, and a mounting plate 11 is fixedly provided on one side of the mounting ring 10. A thread is provided inside the other end of the mounting plate 11, and a bolt 13 is provided inside the other end of the mounting plate 11 through threaded engagement.

[0027] In this embodiment, a socket 12 is opened on one side of the bolt 13 through the gear ring 9, and the bolt 13 cooperates with the socket 12 to fix the gear ring 9. A connecting rod 14 is fixedly provided on the side of the fan blade 7 close to the slide groove 8, and the connecting rod 14 passes through the slide groove 8 on one side and cooperates with the gear ring 9. When the gear ring 9 rotates, the teeth on its outer side can push the connecting rod 14 to change the angle of the fan blade 7.

[0028] In this embodiment, the connection between the fan blade 7 and the mounting ring 10 is clamped by the mounting frame 6 .

[0029] Working principle: During use, when the mounting tube 1 rotates, the impeller assembly located on the outside will start to operate first, blowing external air to the motor casing and the inside of the motor; the air blown to the casing can cool the device casing, and the air entering the inside of the device will first cool the stator, and the last part of the air will enter the inside of the mounting tube 1; at this time, the ventilation slots 4 in the mounting tube 1 will blow the cold air to the main body 2, thereby cooling the main body 2 and its related components; and the fan 3 will rotate synchronously with it. On the one hand, it can directly blow out a part of the air in the mounting tube 1, and on the other hand, it can also blow out the high-temperature air in the device, thereby enhancing the cooling effect and further reducing the heat loss rate;

[0030] In addition, before the motor starts working, workers need to adjust the angle of the fan blade 7 according to the ambient temperature. If the ambient temperature is high, the angle of the fan blade 7 is increased to inhale more air for cooling. If the ambient temperature is low, the angle of the fan blade 7 is reduced to reduce the amount of air intake, thereby ensuring that the motor is at a suitable operating temperature and its working efficiency is guaranteed.

[0031] It should be noted that when adjusting the fan blades 7, first loosen the mounting bracket 6, then rotate the gear ring 9 to change the angle, and screw in the bolts 13 after the adjustment is completed.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A low-loss rotor core, comprising a mounting tube (1), characterized in that: A fan (3) is fixedly provided in the middle of one side of the mounting tube (1), a main body (2) is provided on the outer surface of the middle part of the mounting tube (1), a ventilation slot (4) is provided in the middle of the mounting tube (1), and the ventilation slot (4) is located inside the main body (2), a rotating shaft (5) is fixedly provided in the middle of the fan (3), and a mounting bracket (6) is fixedly provided on the outer surface of the rotating shaft (5).

2. The low-loss rotor core according to claim 1, characterized in that: The ventilation slot (4) passes through the installation tube (1), and the ventilation slot (4) is arranged obliquely to send the air entering the installation tube (1) into the main body (2).

3. The low-loss rotor core according to claim 1, characterized in that: The outer surface of the rotating shaft (5) is fixedly connected to the mounting tube (1), and the mounting frame (6) is located at the end of the rotating shaft (5) away from the fan (3). The mounting frame (6) is composed of a disc and a ring, and a fan blade (7) is provided in the middle of the mounting frame (6).

4. The low-loss rotor core according to claim 3, characterized in that: One end of the fan blade (7) is rotatably connected to the mounting frame (6), and one end of the fan blade (7) is the center of a circle and is connected to the mounting frame (6). The outer surface of the mounting frame (6) is located on one side of the fan blade (7) and is provided with a slide groove (8). The slide groove (8) is arranged in an arc shape, and the center of the arc coincides with the connection point of the fan blade (7).

5. The low-loss rotor core according to claim 4, characterized in that: A gear ring (9) is rotatably provided on the outer side of the disc of the mounting frame (6), and a mounting ring (10) is provided on the middle outer surface of the gear ring (9). The mounting ring (10) is fixedly connected to the mounting frame (6), and a mounting plate (11) is fixedly provided on one side of the mounting ring (10). The other end of the mounting plate (11) is provided with a thread, and a bolt (13) is provided on the other end of the mounting plate (11) through threaded engagement.

6. The low-loss rotor core according to claim 5, characterized in that: One side of the bolt (13) is provided with an insertion hole (12) through the gear ring (9), and the bolt (13) cooperates with the insertion hole (12) to fix the gear ring (9). A connecting rod (14) is fixedly provided on the side of the fan blade (7) close to the slide groove (8), and the connecting rod (14) passes through the slide groove (8) on one side and cooperates with the gear ring (9). When the gear ring (9) rotates, the teeth on its outer side can push the connecting rod (14) to change the angle of the fan blade (7).

7. The low-loss rotor core according to claim 6, characterized in that: The connection between the fan blade (7) and the mounting ring (10) is clamped by the mounting frame (6).

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