Novel motor

Abstract

The utility model provides a novel motor, which relates to the field of motor driving devices, and comprises a stator assembly and a rotor assembly, the rotor assembly comprises a shaft, a magnetic steel assembly and an iron core lamination assembly, the iron core lamination assembly and the magnetic steel assembly are installed in a matched manner, one side, facing the stator assembly, of the iron core lamination assembly is provided with a protruding part, and the protruding part is provided with a through hole. The shaft is sleeved with a limiting blocking piece, and the limiting blocking piece abuts against the end face of the magnetic steel assembly. According to the invention, the protruding part of the iron core lamination assembly and the limiting separation blade on the shaft are used for common limiting, extra parts such as a metal retainer ring and a separation blade are not needed, the structure is simplified, and the assembly process is reduced; the material and manufacturing cost is reduced; and axial movement and circumferential micro-rotation of the magnetic steel assembly can be effectively limited, and the stability and reliability of motor operation are improved.

Description

Technical Field

[0001] This utility model relates to the field of motor drive devices, and in particular to a novel motor. Background Technology

[0002] In existing motors, the rotor assembly's magnet components typically require reliable axial and circumferential restraints to prevent them from shifting or rotating at high speeds, thus avoiding impacts to the stator or malfunctions. Currently, a common restraint solution involves installing metal retaining rings on the shaft, along with additional baffles or springs to provide preload.

[0003] However, this approach has significant drawbacks. First, its structure is relatively complex, requiring the assembly of multiple additional components such as retaining rings and baffles, increasing assembly steps. Second, the use of additional parts such as metal retaining rings increases material and manufacturing costs. Third, if the fit between components is insufficient or the preload fails, the magnet assembly may still experience axial movement or slight circumferential rotation, affecting the stability and reliability of the motor operation. Therefore, we propose a novel motor. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by using the protrusion of the iron core lamination assembly and the limiting baffle on the shaft to jointly limit movement, eliminating the need for additional components such as metal retaining rings and baffles, thus simplifying the structure, reducing assembly steps, lowering material and manufacturing costs, and effectively limiting the axial movement and circumferential micro-rotation of the magnet assembly, thereby improving the stability and reliability of motor operation.

[0005] To solve the above-mentioned technical problems, this utility model solves the problem that the traditional motor rotor magnet limit relies on a metal retaining ring, which is complex and unreliable through the following technical solution.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A novel motor includes a stator assembly and a rotor assembly. The rotor assembly includes a shaft, a magnet assembly, and a core lamination assembly. The core lamination assembly is adapted to and installed with the magnet assembly. The core lamination assembly has a protrusion on one side facing the stator assembly. A limiting stop is sleeved on the shaft, and the limiting stop abuts against the end face of the magnet assembly. The protrusion and the limiting stop together restrict the axial movement and circumferential rotation of the magnet assembly.

[0008] Preferably, the protruding portions are located at the four corners of the core lamination assembly.

[0009] Preferably, the height of the protrusion is higher than the surface of the magnet assembly facing the stator assembly.

[0010] Preferably, the limiting baffle is an injection-molded integral part.

[0011] Preferably, the limiting baffle and the shaft are tightly fitted together, and the surface of the limiting baffle is provided with a glue storage groove.

[0012] Preferably, the outer periphery of the core lamination assembly is provided with a gap for mounting the magnet assembly, and the magnet assembly is assembled within the gap.

[0013] Preferably, it also includes an end cap, the end cap having a wire locking groove, the groove wall of the wire locking groove being configured to clamp the wires led out from the rotor winding.

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

[0015] The novel motor provided in this application uses the protrusion of the iron core lamination assembly and the limiting baffle on the shaft to limit the movement, eliminating the need for additional components such as metal retaining rings and baffles, simplifying the structure, reducing assembly steps, lowering material and manufacturing costs, and effectively limiting the axial movement and circumferential micro-rotation of the magnet assembly, thereby improving the stability and reliability of motor operation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0019] Figure 3 This is a schematic diagram of a partially disassembled structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the left side view of the end cap of this utility model in the open state.

[0021] Drawing number explanation: 1. Stator assembly; 2. Rotor assembly; 21. Shaft; 22. Magnet assembly; 23. Core lamination assembly; 24. Protrusion; 3. Limiting baffle; 31. Glue storage tank; 4. End cover; 41. Wire locking groove. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0024] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0025] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number. Example

[0026] Please see Figure 1-4 A novel motor includes a stator assembly 1 and a rotor assembly 2. The rotor assembly 2 includes a shaft 21, a magnet assembly 22, and a core lamination assembly 23. The core lamination assembly 23 is adapted to and installed with the magnet assembly 22. The core lamination assembly 23 has a protrusion 24 on the side facing the stator assembly 1. A limiting baffle 3 is sleeved on the shaft 21 and abuts against the end face of the magnet assembly 22. The protrusion 24 and the limiting baffle 3 together restrict the axial movement and circumferential rotation of the magnet assembly 22.

[0027] The novel motor of this application is mainly composed of components such as stator assembly 1, rotor assembly 2 and limiting baffle 3. The following is a detailed description of its structure and working principle.

[0028] The rotor assembly 2 includes a shaft 21, a magnet assembly 22, and a core lamination assembly 23. The core lamination assembly 23 is adapted to be installed with the magnet assembly 22. Specifically, the outer periphery of the core lamination assembly 23 is provided with a gap for the installation of the magnet assembly 22, and the magnet assembly 22 is assembled within this gap. This structural design can provide a stable mounting foundation for the magnet assembly 22.

[0029] The core lamination assembly 23 has a protrusion 24 on the side facing the stator assembly 1. The protrusion 24 is distributed at the four corners of the core lamination assembly 23, and its height is higher than the surface of the magnet assembly 22 facing the stator assembly 1. This arrangement allows the protrusion 24 to form an effective barrier in the axial and circumferential directions of the magnet assembly 22.

[0030] A limiting baffle 3 is fitted onto the shaft 21, and the limiting baffle 3 abuts against the end face of the magnet assembly 22. The limiting baffle 3 is an injection-molded integral part. This molding method can ensure the integrity and stability of its structure and reduce assembly errors. At the same time, the limiting baffle 3 and the shaft 21 are connected by a tight fit, and the surface of the limiting baffle 3 is provided with a glue storage groove 31. The glue storage groove 31 can be used to store adhesive, further enhancing the firmness of the connection between the limiting baffle 3 and the shaft 21 and preventing relative movement of the limiting baffle 3 on the shaft 21.

[0031] The new motor also includes an end cover 4, which is provided with a wire locking groove 41. The groove wall of the wire locking groove 41 is designed to clamp the wires led out from the rotor winding, thereby fixing the wires and preventing them from being damaged or affecting the normal operation of the motor due to shaking during motor operation.

[0032] In this novel motor, the limiting baffle 3 abuts against the end face of the magnet assembly 22. Because the limiting baffle 3 is tightly fitted to the shaft 21 and further reinforced by the glue reservoir 31, the position of the limiting baffle 3 on the shaft 21 is relatively fixed. When the magnet assembly 22 tends to move axially, the limiting baffle 3 will exert a blocking force, restricting its axial movement.

[0033] Meanwhile, the protrusions 24 on the core lamination assembly 23 are distributed at the four corners and are higher than the surface of the magnet assembly 22 facing the stator assembly 1, cooperating with the limiting baffles 3. When the magnet assembly 22 tends to rotate circumferentially, the protrusions 24 will contact the magnet assembly 22 and create obstruction, thereby limiting its circumferential rotation.

[0034] In addition, the magnet assembly 22 is assembled in the gap around the iron core lamination assembly 23. This gap also plays a certain role in positioning and constraining the magnet assembly 22, further enhancing the stability of the magnet assembly 22 installation.

[0035] The wire locking groove 41 on the end cover 4 clamps the wires led out from the rotor winding, ensuring the reliability of the wire connection and avoiding problems such as loose wires affecting the normal operation of the motor.

[0036] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A novel motor, characterized in that, The system includes a stator assembly (1) and a rotor assembly (2). The rotor assembly (2) includes a shaft (21), a magnet assembly (22), and a core lamination assembly (23). The core lamination assembly (23) is adapted to the magnet assembly (22). The core lamination assembly (23) has a protrusion (24) on one side facing the stator assembly (1). A limiting baffle (3) is sleeved on the shaft (21). The limiting baffle (3) abuts against the end face of the magnet assembly (22). The protrusion (24) and the limiting baffle (3) together restrict the axial movement and circumferential rotation of the magnet assembly (22).

2. The novel motor according to claim 1, characterized in that: The protrusions (24) are distributed at the four corners of the core lamination assembly (23).

3. The novel motor according to claim 1, characterized in that: The height of the protrusion (24) is higher than the surface of the magnet assembly (22) facing the stator assembly (1).

4. The novel motor according to claim 1, characterized in that: The limiting baffle (3) is an injection molded integral part.

5. A novel motor according to claim 1, characterized in that: The limiting baffle (3) is tightly fitted to the shaft (21), and the surface of the limiting baffle (3) is provided with a glue storage groove (31).

6. A novel motor according to claim 1, characterized in that: The outer periphery of the core lamination assembly (23) is provided with a gap for the installation of the magnet assembly (22), and the magnet assembly (22) is assembled in the gap.

7. A novel motor according to claim 1, characterized in that: It also includes an end cap (4), which has a wire locking groove (41) and the groove wall of the wire locking groove (41) is constructed to lock the wires led out from the rotor winding.

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