Stator framework and motor

Abstract

The utility model relates to a stator framework and a motor, and relates to the field of motors, the stator framework comprises a shell, the shell is provided with an iron core, the shell is provided with a mounting groove for mounting the iron core, two ends of the iron core are provided with frameworks, and the mounting groove is used for mounting the frameworks. And one side, close to the iron core, of the framework is provided with an embedding groove for embedding and installing the iron core. The stator mounting structure has the effects of improving the stator mounting stability and reducing the situation that the framework is separated from the iron core.

Description

Technical Field

[0001] The present application relates to the field of motors, and in particular to a stator frame and a motor. Background Art

[0002] An electric motor, commonly known as a "motor", is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction.

[0003] In the prior art, the motor generally includes a housing, a stator and a rotor. The stator is an electromagnet composed of an iron core and a coil. The rotor is provided with a magnetic ring, which controls the magnetism of the stator to drive the rotor to rotate at high speed to form a stable airflow. The stator is generally provided with a frame for mounting the coil, which isolates the coil from the iron core, thereby reducing the safety hazard of coil leakage.

[0004] The frame is usually inserted and installed at both ends of the iron core. When the motor is working, the motor is prone to vibrate, thereby driving the frame to vibrate on the stator, which can easily cause the frame to shift on the iron core, causing friction between the coils and leading to leakage. Utility Model Content

[0005] In order to improve the stability of stator installation and reduce the situation where the frame is separated from the iron core, the present application provides a stator frame and a motor.

[0006] A stator frame and a motor, comprising a shell, an iron core is arranged on the shell, a mounting groove for installing the iron core is opened on the shell, frames are arranged at both ends of the iron core, a mounting cavity for installing the frame is opened on the shell, the mounting groove and the mounting cavity are connected, and an embedding groove for embedding and installing the iron core is opened on a side of the frame close to the iron core.

[0007] By adopting the above technical solution, the iron core is pressed against the frame in the embedded slot, thereby reducing the circumferential rotation of the frame on the iron core, thereby reducing the situation where the frame is separated from the iron core, and improving the stability of the stator installation.

[0008] Preferably, the skeleton covers the circumferential outer side surface of the core, and the mounting groove is provided for mounting the skeleton.

[0009] By adopting the above technical solution, the iron core is protected by the skeleton, thereby reducing the wear of the iron core and reducing the separation of the skeleton from the iron core, thereby improving the stability of the wire group installation and further improving the stability of the stator installation.

[0010] Preferably, the circumferential outer side surface of the skeleton does not exceed the circumferential outer side surface of the core.

[0011] By adopting the above technical solution, the periphery of the skeleton does not exceed the periphery of the iron core, thereby reducing the situation where the skeleton is too large to interfere with the shell when the stator is installed on the shell, thereby reducing the situation where the skeleton wears, thereby improving the convenience of stator installation.

[0012] Preferably, a wire group is wound on the skeleton, and wire grooves for winding the wire group are provided on the skeleton and the core, and an end block for fixing one end of the wire group is provided on the side of the skeleton close to the outside.

[0013] By adopting the above technical solution, one end of the wire group is fixed by the end block, so that the wire group is conveniently connected to the power supply, and then the magnetism of the stator is conveniently controlled, and the rotor is conveniently driven to rotate, thereby improving the convenience of using the stator.

[0014] Preferably, a protrusion for improving insulation performance is provided on the circumferential outer side surface of the end block.

[0015] By adopting the above technical solution, the convex block presses the wire group, thereby driving the wire group away from the end block, thereby ensuring the creepage distance, improving the insulation performance and insulation strength of the skeleton, improving the winding quality, and thus improving the stability of the wire group installation.

[0016] Preferably, a line dividing block for dividing lines is provided on a side of the protrusion away from the end block.

[0017] By adopting the above technical solution, the wire groups wound on the frame are separated by the wire dividing block, which reduces the overlap and entanglement of the wire groups, thereby improving the insulation performance of the frame and the stability of the wire group installation.

[0018] Preferably, a rotor is arranged on the shell, a rotation slot for installing the rotor is opened on the shell, a penetration hole is opened on the shell for the rotor to pass through the installation slot and rotate, and the skeleton and the iron core are both provided with penetration slots for the rotor to pass through and rotate.

[0019] By adopting the above technical solution, the rotor enters the installation slot through the through-slot, so that the magnetic ring on the rotor is arranged corresponding to the stator, and then the rotor is driven to rotate by changing the magnetism of the stator, thereby improving the stability of the motor.

[0020] Preferably, a ventilation duct for air flow is provided on the housing, and the ventilation duct is communicated with the mounting groove.

[0021] By adopting the above technical solution, when the rotor rotates, external air is sucked into the rotor slot and output to the outside through the ventilation duct at a certain speed, thereby guiding the flow direction of the airflow in the motor and increasing the air volume of the motor.

[0022] Preferably, the ventilation duct is opened in a curved shape, and the opening direction of the ventilation duct is the same as the flow direction of the airflow.

[0023] By adopting the above technical solution, the guiding effect of the airflow in the casing is further improved through the curved ventilation duct, the air volume is increased, the vibration and noise when the motor is working are reduced, and the stability of the motor is improved.

[0024] Preferably, a plurality of ventilation passages are evenly arranged in the circumferential direction of the shell.

[0025] By adopting the above technical solution, the airflow is divided and passed evenly through multiple ventilation ducts, thereby further improving the guiding effect of the airflow, increasing the air volume, reducing the vibration and noise when the motor is working, and improving the stability of the motor.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The iron core is pressed against the frame in the embedded slot, thereby reducing the circumferential rotation of the frame on the iron core, thereby reducing the situation where the frame is separated from the iron core and improving the stability of the stator installation;

[0028] 2. The convex block presses the wire group, thereby driving the wire group away from the end block, thereby ensuring the creepage distance, improving the insulation performance and insulation strength of the skeleton, improving the winding quality, and thus improving the stability of the wire group installation;

[0029] 3. The wire groups wound on the frame are separated by the wire separation block to reduce the overlap and entanglement of the wire groups, thereby improving the insulation performance of the frame and the stability of the wire group installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a stator frame and a motor in an embodiment of the present application.

[0031] Figure 2 This is a cross-sectional view of the motor.

[0032] Figure 3 yes Figure 2 Enlarged schematic diagram of part A of the mesoskeleton.

[0033] Explanation of the accompanying drawings: 1. Shell; 2. Iron core; 3. Mounting groove; 4. Skeleton; 5. Mounting cavity; 6. Embedding groove; 7. Wire group; 8. Wire groove; 9. End block; 10. Protrusion; 11. Branching block; 12. Rotor; 13. Rotating groove; 14. Through hole; 15. Through groove; 16. Ventilation duct. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-3 This application is described in further detail.

[0035] Reference Figure 1 and Figure 2The embodiment of the present application discloses a stator frame and a motor, including a housing 1, an iron core 2, a rotor 12, a frame 4 and a winding group 7. The housing 1 is provided with a mounting groove 3 for embedding and installing the iron core 2, the housing 1 is provided with a rotation groove 13 for installing the rotor 12, the housing 1 is provided with a through hole 14 for the rotor 12 to penetrate and rotate, one end of the through hole 14 is connected with the rotation groove 13, and the other end of the through hole 14 is connected with the mounting groove 3. The frame 4 is arranged at both ends of the iron core 2, the housing 1 is provided with a mounting cavity 5 for installing the frame 4, and the frame 4 and the iron core 2 are provided with a through groove 15 for the rotor 12 to penetrate. The frame 4 is provided with an embedding groove 6 for embedding the iron core 2 on one side close to the iron core 2, and the iron core 2 is pressed against the frame 4 in the embedding groove 6, thereby reducing the relative circumferential rotation of the iron core 2 and the frame 4. The winding group 7 is wound on the frame 4, and the iron core 2 and the frame 4 are provided with a wire groove 8 for winding the wire group 7.

[0036] Reference Figure 1 and Figure 2 The housing 1 is provided with a ventilation duct 16 for airflow. When the rotor 12 rotates, the outside air is sucked into the rotating slot 13 and then discharged from the housing 1 through the ventilation duct 16. The ventilation duct 16 is curved, and the curvature direction of the ventilation duct 16 is the same as the flow direction of the airflow, thereby improving the guiding effect of the ventilation duct 16 on the airflow. A plurality of ventilation ducts 16 are evenly provided in the circumferential direction of the housing 1, and the ventilation duct 16 is located on the circumferential outer side of the mounting slot 3, so that the airflow passes through the ventilation duct 16 evenly, and is conducive to heat dissipation of the iron core 2, the coil group 7 and the rotor 12 in the mounting slot 3.

[0037] Reference Figure 2 The skeleton 4 is integrally injection molded with the core 2, the inner circumference of the skeleton 4 does not exceed the inner circumference of the core 2, the outer circumference of the skeleton 4 may not exceed the outer circumference of the core 2, or may cover the outer circumference of the core 2. In this embodiment, the outer circumference of the skeleton 4 does not exceed the outer circumference of the core 2. This reduces the interference of the skeleton 4 with the rotor 12 and the housing 1, and further forms a step at the connection between the skeleton 4 and the core 2, and forms a step at the connection between the mounting groove 3 and the mounting cavity 5, further improving the stability of the installation of the core 2 and the skeleton 4.

[0038] Reference Figure 2 and Figure 3 The side of the skeleton 4 close to the outside world is integrally provided with an end block 9 for wiring one end of the wire group 7. The side of the end block 9 close to the rotor 12 does not exceed the side of the skeleton 4 close to the rotor 12, and the side of the end block 9 away from the rotor 12 does not exceed the side of the skeleton 4 away from the rotor 12. One end of the wire group 7 is fixed by the end block 9, so that it is convenient to connect the wire group 7 to the external power supply, thereby facilitating the control of the magnetism of the iron core 2. In this embodiment, the end block 9 is only arranged on the skeleton 4 located on the outside world to facilitate wiring, and the side of the end block 9 close to the rotor 12 is flush with the side of the skeleton 4 close to the rotor 12.

[0039] Reference Figure 2 and Figure 3 The circumferential outer surface of the end block 9 is integrally provided with a protrusion 10, and the side of the protrusion 10 away from the end block 9 does not exceed the circumferential periphery of the frame 4. The protrusion 10 presses the wire group 7, thereby increasing the creepage distance, improving the insulation performance, and reducing the leakage phenomenon. The side of the protrusion 10 away from the end block 9 is integrally provided with a wire separation block 11, and the wire group 7 wound on the protrusion 10 is separated by the wire separation block 11, thereby reducing the phenomenon of winding and overlapping of the wire group 7.

[0040] Working principle:

[0041] The core 2 is pressed against the frame 4 in the embedded groove 6, thereby reducing the circumferential rotation of the frame 4. The core 2 and the frame 4 are arranged in one piece, thereby reducing the frame 4 from being separated from the core 2. One end of the wire group 7 is fixed by the end block 9, thereby facilitating the connection of the external power supply to the wire group 7. The protrusion 10 presses the wire group 7, thereby driving the wire group 7 away from the end block 9, thereby increasing the creepage distance and improving the insulation performance of the frame 4. The wire group 7 wound on the frame 4 is separated by the wire separation block 11 for easy wiring.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A stator frame and a motor, comprising a housing (1), characterized in that: An iron core (2) is arranged on the shell (1), a mounting groove (3) for mounting the iron core (2) is provided on the shell (1), skeletons (4) are provided at both ends of the iron core (2), a mounting cavity (5) for mounting the skeleton (4) is provided on the shell (1), the mounting groove (3) and the mounting cavity (5) are connected, and an embedding groove (6) for embedding and mounting the iron core (2) is provided on a side of the skeleton (4) close to the iron core (2).

2. A stator frame and motor according to claim 1, characterized in that: The frame (4) covers the circumferential outer side surface of the iron core (2), and the mounting groove (3) is used for mounting the frame (4).

3. A stator frame and motor according to claim 1, characterized in that: The circumferential outer side surface of the skeleton (4) does not exceed the circumferential outer side surface of the iron core (2).

4. A stator frame and motor according to claim 3, characterized in that: A wire group (7) is wound on the frame (4), and wire grooves (8) for winding the wire group (7) are provided on the frame (4) and the iron core (2). An end block (9) for fixing one end of the wire group (7) is provided on the side of the frame (4) close to the outside.

5. A stator frame and a motor according to claim 4, characterized in that: A protrusion (10) for improving insulation performance is arranged on the circumferential outer side surface of the end block (9).

6. A stator frame and motor according to claim 5, characterized in that: A line dividing block (11) for dividing lines is provided on a side of the protrusion (10) away from the end block (9).

7. A stator frame and motor according to claim 1, characterized in that: The outer shell (1) is provided with a rotor (12), the outer shell (1) is provided with a rotation groove (13) for mounting the rotor (12), the outer shell (1) is provided with a penetration hole (14) for the rotor (12) to penetrate into the mounting groove (3) and rotate, and the frame (4) and the iron core (2) are both provided with a penetration groove (15) for the rotor (12) to penetrate and rotate.

8. A stator frame and motor according to claim 7, characterized in that: The housing (1) is provided with a ventilation duct (16) for air flow to pass through, and the ventilation duct (16) is connected to the mounting groove (3).

9. A stator frame and a motor according to claim 8, characterized in that: The ventilation duct (16) is opened in a curved manner, and the opening direction of the ventilation duct (16) is the same as the flow direction of the airflow.

10. A stator frame and a motor according to claim 8, characterized in that: A plurality of ventilation passages (16) are evenly arranged in the circumferential direction of the outer shell (1).

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