Motor rotor with self-heat-dissipation structure

Abstract

The utility model belongs to the technical field of motor rotors, and particularly relates to a motor rotor with a self-heat-dissipation structure. A motor rotor with a self-heat-dissipation structure comprises a rotor inner core, and a rotor fixing hole is formed in the center of the rotor inner core. A plurality of rotor iron cores are arranged on the outer side of the rotor inner core, and the rotor iron cores are uniformly distributed on the outer side of the rotor inner core in an annular array; the cross section of the rotor iron core is T-shaped; a winding groove is formed between every two adjacent rotor iron cores; and the top of the rotor inner core is provided with an air guide sheet 1.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor rotors, and in particular relates to a motor rotor with a self-heating structure. Background Art

[0002] The motor rotor refers to the rotating part of the motor, which is divided into the motor rotor and the generator rotor. The motor rotor is divided into two types: the inner rotor rotation mode and the outer rotor rotation mode. The inner rotor rotation mode is that the core in the middle of the motor is a rotating body, outputting torque (referring to the motor) or receiving energy (referring to the generator). The copper coil of the motor rotor will generate a lot of heat during the power-on process, causing the temperature of the motor rotor to rise rapidly. In order to dissipate the heat of the motor rotor, it is usually necessary to dissipate the heat of the motor rotor with an external heat dissipation device, which makes the motor itself bulky.

[0003] In order to simplify the motor structure and reduce the motor volume, the utility model hopes to provide a motor rotor with a self-heating structure. Utility Model Content

[0004] The purpose of the utility model is to provide a motor rotor with a self-heating structure to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A motor rotor with a self-heating structure comprises a rotor inner core, wherein a rotor fixing hole is provided at the central position of the rotor inner core; a plurality of rotor iron cores are provided on the outer side of the rotor inner core, and the rotor iron cores are evenly distributed on the outer side of the rotor inner core in an annular array; the cross-section of the rotor iron core is T-shaped; winding grooves are provided between adjacent rotor iron cores; and an air guide plate is provided on the top of the rotor inner core.

[0007] Preferably, an air guide plate groove is provided at the top of the rotor inner core, the cross-section of the air guide plate groove is an inverted T-shape, a T-shaped fixing anchor is provided at the bottom of the air guide plate, the T-shaped fixing anchor of the air guide plate is inserted into the air guide plate groove, and the length of the T-shaped fixing anchor is equal to the length of the air guide plate groove.

[0008] Preferably, the T-shaped fixing anchor is located on the bottom outer side of the air guide plate 1.

[0009] Preferably, a fixing screw is provided at one side of the outer end notch of the air guide plate groove.

[0010] Preferably, the air guide sheet is in a straight sheet shape or an arc sheet shape.

[0011] Preferably, the winding groove is a V-shaped groove.

[0012] Preferably, one side of the outer notch of the winding groove is provided with an air guide plate 2, and the air guide plate 2 is in a straight plate shape or an arc plate shape.

[0013] Preferably, the second air guide plate is hinged to the outer notch of the winding slot, and correspondingly, a plurality of limit screws are provided at the rotor core, and the plurality of limit screws are located on the back side of the second air guide plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The utility model provides a motor rotor with a self-heating structure. With the help of air guide sheet 1 and air guide sheet 2, gas can be introduced into the winding groove during rotation, so as to facilitate air conduction and heat dissipation of the copper wire in the winding groove;

[0016] (2) The utility model provides a motor rotor with a self-heating structure, wherein the first air guide plate adopts a detachable installation method, and the second air guide plate adopts a hinged connection method, which is convenient for winding the coil of the motor rotor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] In the figure: 1. Rotor inner core; 2. Rotor fixing hole; 3. Rotor iron core; 4. Winding groove; 5. Air guide plate one; 6. Air guide plate groove; 7. T-shaped fixing anchor; 8. Fixing screw; 9. Air guide plate two; 10. Limit screw. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] A motor rotor with a self-heating structure includes a rotor core 1, and a rotor fixing hole 2 is provided at the central position of the rotor core 1. Twelve rotor cores 3 are provided on the outside of the rotor core 1, and the twelve rotor cores 3 are evenly distributed on the outside of the rotor core 1 in a ring array, and the rotor core 3 is used to wind the coil. In order to prevent the coil from falling out, the cross-section of the rotor core 3 is T-shaped. There is a winding groove 4 between two adjacent rotor cores 3, and the winding groove 4 is used for the wire coil to pass through, and can also be used as a heat dissipation and ventilation channel. The winding groove 4 is a V-shaped groove, and the V-shaped groove can enhance the electromagnetic effect after the coil is wound. In order to enhance the gas flow in the winding groove 4, an air guide plate 5 is provided on the top of the rotor core 3, and the air guide plate 5 is an arc-shaped plate. In order to facilitate the coil winding, the air guide piece 5 is detachably installed, and an air guide piece groove 6 is provided on the top of the rotor core 3. The cross section of the air guide piece groove 6 is an inverted T-shape. A T-shaped fixing anchor 7 is provided at the bottom of the air guide piece 5, and the T-shaped fixing anchor 7 of the air guide piece 5 is inserted into the air guide piece groove 6. The length of the T-shaped fixing anchor 7 is equal to the length of the air guide piece groove 6. After the T-shaped fixing anchor 7 is inserted into the air guide piece groove 6, no significant shaking will occur. The T-shaped fixing anchor 7 is located on the outside of the bottom of the air guide piece 5, and the inside of the bottom of the air guide piece 5 is vacant, and the vacant place is reserved for coil winding. In order to prevent the air guide piece 5 from sliding out of the air guide piece groove 6 during the high-speed rotation of the rotor inner core 1, a fixing screw 8 is provided on one side of the outer end notch of the air guide piece groove 6, and the fixing screw 8 fixes and limits the air guide piece 5. At the same time, an air guide sheet 2 9 is provided on one side of the outer notch of the winding slot 4. The air guide sheet 2 9 is in an arc shape, and the air in the winding slot 4 can be guided through the air guide sheet 2 9. In order to facilitate the coil winding, the air guide sheet 2 9 is hinged to the outer notch of the winding slot 4. After the winding is completed, in order to fix and limit the air guide sheet 2 9, a limit screw 10 is provided at the rotor core 3. The limit screw 10 is located on the back side of the air guide sheet 2 9, and one air guide sheet 2 9 corresponds to two limit screws 10.

[0021] 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 motor rotor with a self-heating structure, characterized in that: It comprises a rotor inner core, wherein a rotor fixing hole is provided at the central position of the rotor inner core; a plurality of rotor iron cores are provided on the outer side of the rotor inner core, and the rotor iron cores are evenly distributed on the outer side of the rotor inner core in a ring array; the cross section of the rotor iron core is T-shaped; winding grooves are provided between adjacent rotor iron cores; and an air guide plate is provided on the top of the rotor inner core.

2. The motor rotor with a self-heating structure according to claim 1, characterized in that: An air guide plate groove is provided at the top of the rotor inner core, and the cross-section of the air guide plate groove is an inverted T-shape. A T-shaped fixing anchor is provided at the bottom of the air guide plate one, and the T-shaped fixing anchor of the air guide plate one is inserted into the air guide plate groove, and the length of the T-shaped fixing anchor is equal to the length of the air guide plate groove.

3. The motor rotor with a self-heating structure according to claim 2, characterized in that: The T-shaped fixing anchor is located at the bottom outer side of the first air guide sheet.

4. The motor rotor with a self-heating structure according to claim 2, characterized in that: A fixing screw is provided at one side of the outer end notch of the air guide plate groove.

5. The motor rotor with a self-heating structure according to claim 1, characterized in that: The air guide sheet is in a straight sheet shape or an arc sheet shape.

6. The motor rotor with a self-heating structure according to claim 1, characterized in that: The winding groove is a V-shaped groove.

7. The motor rotor with a self-heating structure according to claim 1, characterized in that: An air guide plate 2 is arranged on one side of the outer notch of the winding groove, and the air guide plate 2 is in a straight plate shape or an arc plate shape.

8. The motor rotor with a self-heating structure according to claim 7, characterized in that: The second air guide plate is hinged to the outer notch of the winding slot, and correspondingly, a plurality of limit screws are arranged at the rotor core, and the plurality of limit screws are located on the back side of the second air guide plate.

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