Winding structure of flat wire motor stator

Abstract

The utility model discloses a winding structure of a flat wire motor stator, which comprises a stator iron core, the inner wall of the stator iron core is fixedly connected with annularly arranged stator winding frames, the stator winding frames are designed in a symmetrical concave shape, the inner wall of each stator winding frame is wound with a flat copper-clad cable, and the flat copper-clad cable is wound on the inner wall of each stator winding frame. A rotor magnet yoke is arranged in the stator core, the outer surface of the rotor magnet yoke is fixedly connected with annularly arranged rotor magnetic poles, the outer surface of the stator core is fixedly connected with annularly arranged mounting blocks, and the upper surface of each mounting block is provided with a mounting hole; the outer surface of the stator iron core is provided with installation buckling grooves which are arranged in an annular manner. Through the arrangement of the stator core and the stator winding frame and the design of the stator core and the stator winding frame in a symmetrical concave shape, the occupied volume of the stator winding frame can be effectively reduced, a flat copper-clad cable can be wound on the stator winding frame with a larger volume, the slot fullness rate of the stator winding is effectively increased, and the power improvement and the use of the motor are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of flat wire motors, in particular to a winding structure of a stator of a flat wire motor. Background Art

[0002] The stator winding refers to the winding installed on the stator, that is, the conductor wound on the stator. The winding is a general term for a phase or the entire electromagnetic circuit composed of multiple coils or coil groups. The stator is an important part of the motor. The stator consists of three parts: the stator core, the stator winding and the frame. The main function of the stator is to generate a rotating magnetic field, and the main function of the rotor is to be cut by the magnetic lines of force in the rotating magnetic field and then generate (output) current. In flat wire motors, flat copper conductors are generally used to form coils.

[0003] The current motor stator winding structure generally uses round cables for winding. The equivalent radius of the round cables is small, which increases the heat generated by the motor. In addition, when the round cables are wound, the slot fill rate is low, which is not convenient for high-power use of the motor. Therefore, we propose a winding structure for the stator of a flat wire motor to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a winding structure of a flat wire motor stator 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 winding structure of a flat wire motor stator comprises a stator core, the inner wall of the stator core is fixedly connected with a stator winding frame arranged in an annular shape, the stator winding frame is symmetrically concave-shaped, the inner wall of each stator winding frame is wound with a flat copper-clad cable, a rotor yoke is arranged inside the stator core, and the outer surface of the rotor yoke is fixedly connected with a rotor pole arranged in an annular shape.

[0007] In a further embodiment, an outer surface of the stator core is fixedly connected with annularly arranged mounting blocks, and an upper surface of each mounting block is provided with a mounting hole.

[0008] In a further embodiment, the outer surface of the stator core is provided with annularly arranged mounting buckle grooves.

[0009] In a further embodiment, a model mark is fixedly connected to the front side of the stator core, and the model mark is located in the middle of the stator core.

[0010] In a further embodiment, a wire pressing groove is provided on the upper surface of the stator core and the bottom surface of the stator core, and the wire pressing groove is an annular groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The device can effectively reduce the occupied volume of the stator winding frame by providing the stator core, the stator winding frame and the symmetrical concave-shaped design, so that a larger volume of the flat copper-clad cable can be wound on the stator winding frame, effectively increasing the slot fill rate of the stator winding, and facilitating the power improvement and use of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the winding structure of the flat wire motor stator.

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the stator core in the winding structure of the flat wire motor stator.

[0015] Figure 3 This is a schematic diagram of the internal dissection structure of the stator core in the winding structure of the flat wire motor stator.

[0016] Figure 4 It is a cross-sectional view of the top view of the stator core in the winding structure of the flat wire motor stator.

[0017] In the figure: 1. stator core; 2. mounting buckle slot; 3. model mark; 4. mounting block; 5. mounting hole; 6. stator winding frame; 7. rotor yoke; 8. rotor pole; 9. flat copper clad cable; 10. wire pressing groove. DETAILED DESCRIPTION

[0018] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0020] 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.

[0021] See also Figure 1-4 In the utility model, a winding structure of a flat wire motor stator includes a stator core 1, the inner wall of the stator core 1 is fixedly connected with a stator winding frame 6 arranged in an annular shape, the stator winding frame 6 is symmetrically concave-shaped, and the stator winding frame 6 is used to facilitate the winding of the cable. The inner wall of each stator winding frame 6 is wound with a flat copper-clad cable 9, and the flat copper-clad cable 9 can increase the equivalent cross-sectional area of ​​the cable. A rotor yoke 7 is provided inside the stator core 1, and a rotor pole 8 arranged in an annular shape is fixedly connected to the outer surface of the rotor yoke 7.

[0022] The outer surface of the stator core 1 is fixedly connected with an annularly arranged mounting blocks 4, and the upper surface of each mounting block 4 is provided with a mounting hole 5, which can be used to install and fix the stator core 1, facilitating the installation operation of the motor. The outer surface of the stator core 1 is provided with an annularly arranged mounting buckle grooves 2, which can facilitate the external installation of the stator core 1 and facilitate the stable use of the motor.

[0023] The front of the stator core 1 is fixedly connected with a model mark 3, which is located in the middle of the stator core 1. It can explain the stator model of the motor, which is convenient for people to understand the motor. The upper surface of the stator core 1 and the bottom surface of the stator core 1 are both provided with a wire pressing groove 10. The wire pressing groove 10 is an annular groove, which can press and fix the winding cable, so as to increase the stability of the winding cable.

[0024] The working principle of the utility model is:

[0025] When in use, the stator core 1 is fixed on the assembly seat, and then the flat copper-clad cable 9 is wound onto the stator winding frame 6 in sequence. After the winding is completed, the flat copper-clad cable 9 is pressed and fixed inside the wire pressing groove 10 using a pressing sheet clamp, and then the rotor yoke 7 and the rotor pole 8 are installed inside the stator core 1 to complete the assembly of the electric stator and the rotor. Due to the symmetrical concave design of the stator winding frame 6, the flat copper-clad cable 9 can be wound in a larger volume, thereby increasing the slot fill rate of the stator winding and realizing high-power use of the motor.

[0026] It is obvious 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 features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A winding structure of a flat wire motor stator, characterized in that: The invention comprises a stator core (1), the inner wall of the stator core (1) being fixedly connected to a stator winding frame (6) arranged in an annular shape, the stator winding frame (6) being designed in a symmetrical concave shape, the inner wall of each stator winding frame (6) being wound with a flat copper-clad cable (9), the interior of the stator core (1) being provided with a rotor yoke (7), the outer surface of the rotor yoke (7) being fixedly connected to rotor poles (8) arranged in an annular shape.

2. The winding structure of the flat wire motor stator according to claim 1, characterized in that: The outer surface of the stator core (1) is fixedly connected with mounting blocks (4) arranged in a ring shape, and the upper surface of each mounting block (4) is provided with a mounting hole (5).

3. The winding structure of the flat wire motor stator according to claim 1, characterized in that: The outer surface of the stator core (1) is provided with mounting buckle grooves (2) arranged in an annular pattern.

4. The winding structure of a flat wire motor stator according to claim 1, characterized in that: A model mark (3) is fixedly connected to the front side of the stator core (1), and the model mark (3) is located in the middle of the stator core (1).

5. The winding structure of the flat wire motor stator according to claim 1, characterized in that: The upper surface of the stator core (1) and the bottom surface of the stator core (1) are both provided with a wire pressing groove (10), and the wire pressing groove (10) is an annular groove.

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