Permanent magnet motor with self-cooling structure

Abstract

The invention relates to the related technical field of permanent magnet motors, in particular to a permanent magnet motor with a self-cooling structure, which comprises a permanent magnet motor, a rotating shaft is arranged on the outer side surface of the permanent magnet motor, and a cooling mechanism is arranged on the surface of one end of the permanent magnet motor. According to the permanent magnet motor with the self-cooling structure, after the permanent magnet motor is used for a long time, a rotor in the permanent magnet motor is overheated, at the moment, a fan arranged in a first mounting frame is started, and air convection is accelerated for air in a placement groove, so that the interior of the permanent magnet motor is cooled; and the protective net is installed at one end of the permanent magnet motor through the second installation frame, the protective net penetrates through the installation block through a bolt to be installed in an installation groove in the outer side of the permanent magnet motor, the protective net can protect the fan, and meanwhile when the fan breaks down, the fan can be maintained by disassembling the second installation frame.

Description

Technical Field

[0001] The present invention relates to the technical field related to permanent magnet motors, and in particular to a permanent magnet motor with a self-cooling structure. Background Art

[0002] A permanent magnet synchronous motor is a synchronous motor that uses permanent magnets to generate a magnetic field. The speed of its rotor is consistent with the current frequency of the stator winding. The permanent magnet synchronous motor is composed of a stator, a rotor, and an end cover. The stator is basically the same as an ordinary induction motor. It uses a laminated structure to reduce the iron loss of the motor during operation. The rotor can be made solid or laminated. The armature winding can be a concentrated full-pitch winding, a distributed short-pitch winding, or an unconventional winding. The working principle of the permanent magnet synchronous motor is based on the interaction between the rotating magnetic field generated by the stator and the magnetic field generated by the permanent magnet on the rotor. The rotor is equipped with a pre-magnetized Permanent magnets can generate a strong magnetic field when rotating, thereby providing a greater output torque. The motor control system will accurately adjust the current to ensure that the motor rotor can rotate synchronously with the rotating magnetic field and maintain a stable operating state. Permanent magnet synchronous motor is a widely used type of motor with advantages such as high efficiency, good dynamic response performance, and low noise. It is widely used in electric vehicles, robots and other fields that require high efficiency, high dynamic performance and low noise. After a long period of use, the permanent magnet motor will generate a lot of heat. Therefore, there is a special need for a permanent magnet motor with a self-cooling structure.

[0003] The permanent magnet motors currently on the market have the following problems during use:

[0004] 1. After a long period of use, the rotor inside the permanent magnet motor will overheat, resulting in reduced operating efficiency;

[0005] 2. When the current permanent magnet motor is in use, the shaft needs to be lubricated when connected to other equipment so that it can better drive the equipment to work. Summary of the invention

[0006] The object of the present invention is to provide a permanent magnet motor with a self-cooling structure to solve the technical problems raised in the background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a permanent magnet motor with a self-cooling structure, comprising a permanent magnet motor, a rotating shaft is arranged on the outer surface of the permanent magnet motor, and a cooling mechanism is arranged on one end surface of the permanent magnet motor;

[0008] The cooling mechanism includes a placement groove, an installation groove, a first installation frame, a fan, a second installation frame, a protective net, a mounting block and bolts. A placement groove is provided on one side surface of the permanent magnet motor, and a mounting groove is provided on the outer surface of the permanent magnet motor. The first mounting frame is installed on the inner surface of the placement groove, and the fan is installed on the inner surface of the first mounting frame. The second mounting frame is installed on the inner surface of the placement groove, and the protective net is fixedly connected to the inner surface of the second mounting frame. The outer surface of the second mounting frame is fixedly connected to the mounting block, and the outer surface of the mounting block is threadedly connected with bolts.

[0009] Preferably, the installation grooves are opened at equal intervals on the outer surface of the permanent magnet motor, and the outer surface size of the first installation frame matches the inner surface size of the placement grooves.

[0010] Preferably, the fan and the permanent magnet motor form a rotating structure, and the outer surface size of the second installation frame matches the inner surface size of the placement groove.

[0011] Preferably, the outer surface size of the protective net matches the inner surface size of the second installation frame, and the installation blocks are installed at equal intervals on the outer surface of the second installation frame.

[0012] Preferably, the lubrication mechanism includes an oil storage box, an oil filling port, an oil storage groove, a through hole and oil absorbing cotton. The outer surface of the rotating shaft is sleeved with an oil storage box, the outer surface of the oil storage box is provided with an oil filling port, the inner surface of the oil storage box is provided with an oil storage groove, the inner surface of the oil storage box is provided with a through hole, and the inner surface of the oil storage box is fixedly connected to the oil absorbing cotton.

[0013] Preferably, the outer surface size of the rotating shaft matches the inner surface size of the oil storage box, and the oil filling port is connected to the oil storage tank through the oil storage box.

[0014] Preferably, the through holes are opened at equal intervals on the inner surface of the oil storage box, and the outer surface size of the oil-absorbing cotton matches the inner surface size of the oil storage box.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. A permanent magnet motor with a self-cooling structure is provided with a placement groove, an installation groove, a first installation frame, a fan, a second installation frame, a protective net, a mounting block and bolts. When the permanent magnet motor is used for a long time, the rotor inside the permanent magnet motor will cause overheating. At this time, the fan arranged in the first installation frame will be started, and the air convection inside the placement groove is accelerated to cool the inside of the permanent magnet motor. The protective net is installed at one end of the permanent magnet motor through the second installation frame, and is installed in the mounting groove outside the permanent magnet motor through the bolts through the mounting block. The protective net can protect the fan. At the same time, when the fan fails, the fan can be repaired by disassembling the second installation frame.

[0017] 2. A permanent magnet motor with a self-cooling structure is provided with an oil storage box, an oil filling port, an oil storage tank, a through hole and oil absorbing cotton. Before the permanent magnet motor is used, the oil storage box is sleeved on the rotating shaft, and then the inside of the oil storage box is filled with oil through the oil filling port so that the lubricating oil is stored in the oil storage tank. At this time, the oil absorbing cotton absorbs the lubricating oil in the oil storage tank through the through hole. When the rotating shaft rotates, the oil absorbing cotton can lubricate the rotating shaft, thereby improving the use effect of the permanent magnet motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the placement slot and the installation slot of the present invention working in conjunction with each other;

[0020] Figure 3 This is a schematic diagram of the structure of the oil storage box and the oil filling port of the present invention used in conjunction with each other;

[0021] Figure 4 It is a schematic cross-sectional structural diagram of the lubrication mechanism of the present invention;

[0022] Figure 5 For the present invention Figure 2 A is an enlarged structural diagram of FIG.

[0023] In the figure: 1. permanent magnet motor; 2. rotating shaft; 3. cooling mechanism; 31. placement slot; 32. mounting slot; 33. first mounting frame; 34. fan; 35. second mounting frame; 36. protective net; 37. mounting block; 38. bolt; 4. lubrication mechanism; 41. oil storage box; 42. oil filling port; 43. oil storage tank; 44. through hole; 45. oil absorbing cotton. 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0025] See also Figure 1 -5. The present invention provides a technical solution: a permanent magnet motor with a self-cooling structure, comprising a permanent magnet motor 1, a rotating shaft 2 is arranged on the outer surface of the permanent magnet motor 1, and a cooling mechanism 3 is arranged on one end surface of the permanent magnet motor 1;

[0026] The cooling mechanism 3 includes a placement groove 31, a mounting groove 32, a first mounting frame 33, a fan 34, a second mounting frame 35, a protective net 36, a mounting block 37 and a bolt 38. A placement groove 31 is provided on one side surface of the permanent magnet motor 1, and a mounting groove 32 is provided on the outer surface of the permanent magnet motor 1. The first mounting frame 33 is installed on the inner surface of the placement groove 31, and the fan 34 is installed on the inner surface of the first mounting frame 33. The second mounting frame 35 is installed on the inner surface of the placement groove 31. The protective net 36 is fixedly connected to the inner surface of the second mounting frame 35, and the mounting block 37 is fixedly connected to the outer surface of the second mounting frame 35. The bolt 38 is threadedly connected to the outer surface of the mounting block 37. The fan 34, the second mounting frame 35, the protective net 36, the mounting block 37 and the bolts 38 are arranged. When the permanent magnet motor 1 is used for a long time, the rotor inside the permanent magnet motor 1 will cause overheating. At this time, the fan 34 arranged in the first mounting frame 33 will be started to accelerate the air convection of the air inside the placement slot 31, thereby cooling the inside of the permanent magnet motor 1. The protective net 36 is installed at one end of the permanent magnet motor 1 through the second mounting frame 35, and is installed in the mounting slot 32 on the outside of the permanent magnet motor 1 through the bolts 38 to penetrate the mounting block 37. The protective net 36 can protect the fan 34. At the same time, when the fan 34 fails, the fan 34 can be repaired by disassembling the second mounting frame 35.

[0027] Furthermore, the mounting grooves 32 are opened at equal intervals on the outer surface of the permanent magnet motor 1 , and the outer surface size of the first mounting frame 33 matches the inner surface size of the placement groove 31 . Through the setting of the mounting grooves 32 , it can be fixedly installed by bolts 38 .

[0028] Furthermore, the fan 34 and the permanent magnet motor 1 form a rotating structure, and the outer surface size of the second installation frame 35 matches the inner surface size of the placement groove 31. Through the arrangement of the fan 34, the permanent magnet motor 1 can be cooled.

[0029] Furthermore, the outer surface size of the protective net 36 matches the inner surface size of the second mounting frame 35, and the mounting blocks 37 are installed at equal intervals on the outer surface of the second mounting frame 35. The provision of the protective net 36 enables the fan 34 to be protected.

[0030] Furthermore, the lubricating mechanism 4 includes an oil storage box 41, an oil filling port 42, an oil storage tank 43, a through hole 44 and oil absorbing cotton 45. The outer surface of the rotating shaft 2 is sleeved with the oil storage box 41, the outer surface of the oil storage box 41 is provided with an oil filling port 42, the inner surface of the oil storage box 41 is provided with an oil storage tank 43, the inner surface of the oil storage box 41 is provided with a through hole 44, and the inner surface of the oil storage box 41 is fixedly connected with the oil absorbing cotton 45. 3. The through hole 44 and the oil-absorbing cotton 45 are arranged. Before the permanent magnet motor 1 is used, the oil storage box 41 is sleeved on the rotating shaft 2, and then the interior of the oil storage box 41 is filled with oil through the oil filling port 42, so that the lubricating oil is stored in the oil storage tank 43. At this time, the oil-absorbing cotton 45 absorbs the lubricating oil in the oil storage tank 43 through the through hole 44. When the rotating shaft 2 rotates, the oil-absorbing cotton 45 can lubricate the rotating shaft 2, thereby improving the use effect of the permanent magnet motor 1.

[0031] Furthermore, the outer surface size of the rotating shaft 2 matches the inner surface size of the oil storage box 41 , and the oil filling port 42 is connected to the oil storage tank 43 through the oil storage box 41 . The setting of the oil filling port 42 enables the operator to inject lubricating oil into the oil storage box 41 .

[0032] Furthermore, the through holes 44 are opened at equal intervals on the inner surface of the oil storage box 41, and the outer surface size of the oil-absorbing cotton 45 matches the inner surface size of the oil storage box 41. Through the arrangement of the oil-absorbing cotton 45, the rotating shaft 2 can be lubricated.

[0033] Working principle: First, after the permanent magnet motor 1 has been used for a long time, the rotor inside the permanent magnet motor 1 will cause overheating. At this time, the fan 34 set in the first installation frame 33 will start, and the air convection inside the placement slot 31 will be accelerated to cool the inside of the permanent magnet motor 1. The protective net 36 is installed at one end of the permanent magnet motor 1 through the second installation frame 35, and is installed in the installation slot 32 outside the permanent magnet motor 1 through the bolt 38. The protective net 36 can Protection, at the same time, when the fan 34 fails, the fan 34 can be repaired by disassembling the second mounting frame 35. Before the permanent magnet motor 1 is used, the oil storage box 41 is mounted on the rotating shaft 2, and then the interior of the oil storage box 41 is filled with oil through the oil filling port 42, so that the lubricating oil is stored in the oil storage tank 43. At this time, the oil-absorbing cotton 45 absorbs the lubricating oil in the oil storage tank 43 through the through hole 44. When the rotating shaft 2 rotates, the oil-absorbing cotton 45 can lubricate the rotating shaft 2, thereby improving the use effect of the permanent magnet motor 1.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A permanent magnet motor with a self-cooling structure, comprising a permanent magnet motor (1), characterized in that: A rotating shaft (2) is provided on the outer surface of the permanent magnet motor (1), and a cooling mechanism (3) is provided on one end surface of the permanent magnet motor (1); The cooling mechanism (3) comprises a placement groove (31), a mounting groove (32), a first mounting frame (33), a fan (34), a second mounting frame (35), a protective net (36), a mounting block (37) and a bolt (38); a placement groove (31) is provided on one side surface of the permanent magnet motor (1); a mounting groove (32) is provided on the outer side surface of the permanent magnet motor (1); the first mounting frame (33) is installed on the inner side surface of the placement groove (31); the fan (34) is installed on the inner side surface of the first mounting frame (33); the second mounting frame (35) is installed on the inner side surface of the placement groove (31); the protective net (36) is fixedly connected to the inner side surface of the second mounting frame (35); the mounting block (37) is fixedly connected to the outer side surface of the second mounting frame (35); and the bolt (38) is threadedly connected to the outer side surface of the mounting block (37).

2. The permanent magnet motor with a self-cooling structure according to claim 1, characterized in that: The installation grooves (32) are opened at equal intervals on the outer surface of the permanent magnet motor (1), and the outer surface size of the first installation frame (33) matches the inner surface size of the placement groove (31).

3. The permanent magnet motor with a self-cooling structure according to claim 1, characterized in that: The fan (34) and the permanent magnet motor (1) form a rotating structure, and the outer surface size of the second installation frame (35) matches the inner surface size of the placement groove (31).

4. The permanent magnet motor with a self-cooling structure according to claim 1, characterized in that: The outer surface size of the protection net (36) matches the inner surface size of the second installation frame (35), and the installation blocks (37) are installed at equal intervals on the outer surface of the second installation frame (35).

5. The permanent magnet motor with a self-cooling structure according to claim 1, characterized in that: The lubricating mechanism (4) comprises an oil storage box (41), an oil filling port (42), an oil storage groove (43), a through hole (44) and oil absorbing cotton (45); the outer surface of the rotating shaft (2) is sleeved with the oil storage box (41); the outer surface of the oil storage box (41) is provided with an oil filling port (42); the inner surface of the oil storage box (41) is provided with an oil storage groove (43); the inner surface of the oil storage box (41) is provided with a through hole (44); and the inner surface of the oil storage box (41) is fixedly connected with the oil absorbing cotton (45).

6. The permanent magnet motor with a self-cooling structure according to claim 5, characterized in that: The outer surface size of the rotating shaft (2) matches the inner surface size of the oil storage box (41), and the oil filling port (42) is connected to the oil storage tank (43) through the oil storage box (41).

7. The permanent magnet motor with a self-cooling structure according to claim 5, characterized in that: The through holes (44) are formed at equal intervals on the inner surface of the oil storage box (41), and the outer surface size of the oil-absorbing cotton (45) matches the inner surface size of the oil storage box (41).

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