Structure for suppressing magnetic flux leakage and motor

Abstract

The utility model discloses a structure for suppressing magnetic flux leakage and a motor, and relates to the technical field of motors, the structure for suppressing magnetic flux leakage comprises a stator unit; the plurality of first magnetic isolation layers are wrapped outside the side part of the stator unit; the first magnetic conductive layers are positioned between the adjacent first magnetic isolating layers; the plurality of second magnetic isolation layers are wrapped outside the end parts of the stator units; and the second magnetic conductive layers are positioned between the adjacent second magnetic isolating layers. The technical effect of the utility model is that the motor is not easy to generate magnetic leakage.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and in particular to a structure for suppressing magnetic leakage and a motor. Background Art

[0002] A motor is an electromagnetic device that converts electrical energy into mechanical energy. Specifically, it generates a rotating magnetic field through the stator unit and acts on the rotor unit to form a magneto-electrodynamic rotational torque.

[0003] In order to prevent magnetic leakage, the relevant motor is generally provided with a magnetic isolation layer, but the magnetic isolation performance of the relevant magnetic isolation layer is poor, resulting in that the relevant motor is still prone to magnetic leakage. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a structure for suppressing magnetic leakage and a motor, which makes the motor less likely to leak magnetic flux.

[0005] In order to solve the above problems, the technical solution provided by the utility model is:

[0006] A structure for suppressing magnetic flux leakage, comprising:

[0007] Stator unit;

[0008] A plurality of first magnetic isolation layers each wrapped around the side of the stator unit;

[0009] A first magnetic conductive layer located between adjacent first magnetic isolation layers;

[0010] A plurality of second magnetic isolation layers each wrapped around the end of the stator unit;

[0011] The second magnetic conductive layer is located between adjacent second magnetic isolation layers.

[0012] Optionally, the plurality of first magnetic isolation layers are configured as a first magnetic isolation layer 1, a first magnetic isolation layer 2, a first magnetic isolation layer 3 and a first magnetic isolation layer 4 which are arranged in sequence from the inside to the outside of the side of the stator unit, and the first magnetic isolation layer 1, the first magnetic isolation layer 2, the first magnetic isolation layer 3 and the first magnetic isolation layer 4 all have the first magnetic conductive layer at adjacent locations.

[0013] Optionally, among the first magnetic isolation layer 1, the first magnetic isolation layer 2, the first magnetic isolation layer 3 and the first magnetic isolation layer 4, the first magnetic isolation layer 2 has the largest radial dimension.

[0014] Optionally, the plurality of second magnetic isolation layers are configured as a second magnetic isolation layer 1, a second magnetic isolation layer 2 and a second magnetic isolation layer 3 which are sequentially arranged along the inside to outside direction of the end of the stator unit, and the second magnetic isolation layer 1, the second magnetic isolation layer 2 and the second magnetic isolation layer 3 all have the second magnetic conductive layer at adjacent locations.

[0015] Optionally, the second magnetic isolation layer 1 is connected to the second magnetic isolation layer 3, and the second magnetic isolation layer 3 is connected to the first magnetic isolation layer 2.

[0016] Optionally, the stator unit comprises:

[0017] stator core;

[0018] a stator winding connected to the stator core;

[0019] Wherein, the plurality of first magnetic isolation layers are all wrapped outside the stator core, and the plurality of second magnetic isolation layers are all wrapped outside the stator winding.

[0020] A motor, comprising a structure for suppressing magnetic flux leakage, and further comprising:

[0021] A rotor unit rotatably sleeved in the stator unit;

[0022] A shell is sleeved outside the plurality of first magnetic isolation layers.

[0023] Optionally, the rotor unit and the housing are rotatably connected via a bearing.

[0024] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects: a plurality of first magnetic isolation layers are used to form a plurality of magnetic isolation barriers outside the side of the stator unit, and the magnetic isolation performance is good, so that the structure for suppressing magnetic leakage is not prone to magnetic leakage, and further, the motor including the structure for suppressing magnetic leakage is not prone to magnetic leakage; the first magnetic conductive layer is used to collect a small amount of magnetic field between adjacent first magnetic isolation layers, and further, the structure for suppressing magnetic leakage is not prone to magnetic leakage, and further, the motor including the structure for suppressing magnetic leakage is not prone to magnetic leakage; a plurality of second magnetic isolation layers are used to form a plurality of magnetic isolation barriers outside the end of the stator unit, and the magnetic isolation performance is good, so that the structure for suppressing magnetic leakage is not prone to magnetic leakage, and further, the motor including the structure for suppressing magnetic leakage is not prone to magnetic leakage; the second magnetic conductive layer is used to collect a small amount of magnetic field between adjacent second magnetic isolation layers, and further, the structure for suppressing magnetic leakage is not prone to magnetic leakage, and further, the motor including the structure for suppressing magnetic leakage is not prone to magnetic leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the structure of a motor proposed in an embodiment of the utility model;

[0026] Figure 2 for Figure 1 Cross-sectional view of AA in the middle;

[0027] Figure 3 for Figure 2 Partial diagram of B in the figure;

[0028] In the figure: 11, first magnetic isolation layer one; 12, first magnetic isolation layer two; 13, first magnetic isolation layer three; 14, first magnetic isolation layer four; 21, second magnetic isolation layer one; 22, second magnetic isolation layer two; 23, second magnetic isolation layer three; 31, first magnetic conductive layer; 32, second magnetic conductive layer; 4, stator unit; 41, stator core; 42, stator winding; 5, rotor unit; 6, casing; 7, bearing. DETAILED DESCRIPTION

[0029] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

[0030] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It should also be noted that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings. The words "first", "second", etc. described in the present utility model are set for the convenience of describing the technical solution of the present utility model, and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments in the present application can be combined with each other. In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is 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", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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 an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Multiple technical solutions in the same embodiment, and multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not have contradictions or conflicts, all of which are within the scope of protection required by the present utility model.

[0031] Example 1

[0032] Combined with Figure 1-3 , this embodiment provides a structure for suppressing magnetic leakage, including:

[0033] Stator unit 4;

[0034] A plurality of first magnetic isolation layers each wrapped around the side of the stator unit 4;

[0035] A first magnetic conductive layer 31 located between adjacent first magnetic isolation layers;

[0036] A plurality of second magnetic isolation layers each wrapped outside the end of the stator unit 4;

[0037] The second magnetic conductive layer 32 is located between adjacent second magnetic isolation layers.

[0038] Specifically, the stator unit 4 is used to generate a rotating magnetic field after being energized; a plurality of first magnetic isolation layers are used to form a plurality of magnetic isolation barriers outside the side of the stator unit 4, and the magnetic isolation performance is good, so that the structure for suppressing magnetic leakage is not prone to magnetic leakage, and further, the motor including the structure for suppressing magnetic leakage is not prone to magnetic leakage, wherein the material of the plurality of first magnetic isolation layers can be aluminum alloy, etc.; the first magnetic conductive layer 31 is used to collect a small amount of magnetic field between adjacent first magnetic isolation layers, and further, the structure for suppressing magnetic leakage is not prone to magnetic leakage, and further, the motor including the structure for suppressing magnetic leakage is not prone to magnetic leakage, wherein the first magnetic conductive layer 31 The material may be a soft magnetic alloy, etc.; a plurality of second magnetic isolation layers are used to form a plurality of magnetic isolation barriers outside the end of the stator unit 4, and the magnetic isolation performance is good, so that the structure for suppressing leakage magnetic flux is not prone to magnetic leakage, and further the motor including the structure for suppressing leakage magnetic flux is not prone to magnetic leakage, wherein the material of the plurality of second magnetic isolation layers may be an aluminum alloy, etc.; the second magnetic conductive layer 32 is used to collect a small amount of magnetic field between adjacent second magnetic isolation layers, and further the structure for suppressing leakage magnetic flux is not prone to magnetic leakage, and further the motor including the structure for suppressing leakage magnetic flux is not prone to magnetic leakage, wherein the material of the second magnetic conductive layer 32 may be a soft magnetic alloy, etc.

[0039] Further, such as Figure 3 A plurality of first magnetic isolation layers are configured as a first magnetic isolation layer 11, a first magnetic isolation layer 12, a first magnetic isolation layer 3 13 and a first magnetic isolation layer 4 14 which are sequentially arranged along the side of the stator unit 4 from the inside to the outside. The first magnetic isolation layer 11, the first magnetic isolation layer 12, the first magnetic isolation layer 3 13 and the first magnetic isolation layer 4 14 all have a first magnetic conductive layer 31 adjacent to them.

[0040] Specifically, the first magnetic isolation layer 11, the first magnetic isolation layer 2 12, the first magnetic isolation layer 3 13 and the first magnetic isolation layer 4 14 are used to form a plurality of magnetic isolation barriers outside the side of the stator unit 4, and the magnetic isolation performance is good.

[0041] Further, such as Figure 3 Among the first magnetic isolation layer 11, the first magnetic isolation layer 2 12, the first magnetic isolation layer 3 13 and the first magnetic isolation layer 4 14, the radial dimension of the first magnetic isolation layer 2 12 is the largest.

[0042] Specifically, since the radial dimension of the first magnetic isolation layer 12 is the largest, the first magnetic isolation layer 12 can support the first magnetic isolation layer 11 and the first magnetic isolation layer 3 13. In order to further increase the supporting function, the first magnetic isolation layer 12 can be connected to the housing 6 of the motor.

[0043] Further, such as Figure 3 , several second magnetic isolation layers are configured as a second magnetic isolation layer 1 21, a second magnetic isolation layer 22 and a second magnetic isolation layer 3 23 which are arranged in sequence from the inside to the outside of the end of the stator unit 4, and the second magnetic isolation layer 1 21, the second magnetic isolation layer 22 and the second magnetic isolation layer 3 23 are adjacent to each other and have a second magnetic conductive layer 32.

[0044] Specifically, the second magnetic isolation layer 1 21 , the second magnetic isolation layer 22 and the second magnetic isolation layer 3 23 are used to form a plurality of magnetic isolation barriers outside the end of the stator unit 4 , and the magnetic isolation performance is good.

[0045] Further, such as Figure 3 The second magnetic isolation layer 1 21 is connected to the second magnetic isolation layer 3 23 , and the second magnetic isolation layer 3 23 is connected to the first magnetic isolation layer 2 12 .

[0046] Specifically, it is convenient to connect the second magnetic isolation layer 1 21 , the second magnetic isolation layer 3 23 and the first magnetic isolation layer 2 12 to ensure good integrity.

[0047] Further, such as Figure 3 , the stator unit 4 comprises:

[0048] Stator core 41;

[0049] A stator winding 42 connected to the stator core 41;

[0050] Among them, a plurality of first magnetic isolation layers are all wrapped outside the stator core 41 , and a plurality of second magnetic isolation layers are all wrapped outside the stator winding 42 .

[0051] This embodiment further provides a motor, including a structure for suppressing magnetic leakage in this embodiment, and further including:

[0052] The rotor unit 5 is rotatably sleeved in the stator unit 4;

[0053] A housing 6 is sleeved outside the plurality of first magnetic isolation layers.

[0054] Further, such as Figure 2 The rotor unit 5 and the housing 6 are rotatably connected via a bearing 7 .

[0055] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A structure for suppressing magnetic flux leakage, characterized in that: include: Stator unit; A plurality of first magnetic isolation layers each wrapped around the side of the stator unit; A first magnetic conductive layer located between adjacent first magnetic isolation layers; A plurality of second magnetic isolation layers each wrapped around the end of the stator unit; The second magnetic conductive layer is located between adjacent second magnetic isolation layers.

2. A structure for suppressing magnetic flux leakage according to claim 1, characterized in that: The plurality of first magnetic isolation layers are configured as a first magnetic isolation layer 1, a first magnetic isolation layer 2, a first magnetic isolation layer 3 and a first magnetic isolation layer 4 which are sequentially arranged from the inside to the outside of the side of the stator unit, and the first magnetic isolation layer 1, the first magnetic isolation layer 2, the first magnetic isolation layer 3 and the first magnetic isolation layer 4 all have the first magnetic conductive layer at adjacent locations.

3. A structure for suppressing magnetic flux leakage according to claim 2, characterized in that: Among the first magnetic isolation layer 1, the first magnetic isolation layer 2, the first magnetic isolation layer 3 and the first magnetic isolation layer 4, the radial dimension of the first magnetic isolation layer 2 is the largest.

4. A structure for suppressing magnetic flux leakage according to claim 2, characterized in that: The plurality of second magnetic isolation layers are configured as a second magnetic isolation layer 1, a second magnetic isolation layer 2 and a second magnetic isolation layer 3 which are sequentially arranged along the end of the stator unit from the inside to the outside, and the second magnetic isolation layer 1, the second magnetic isolation layer 2 and the second magnetic isolation layer 3 all have the second magnetic conductive layer at adjacent locations.

5. A structure for suppressing magnetic flux leakage according to claim 4, characterized in that: The second magnetic isolation layer 1 is connected to the second magnetic isolation layer 3, and the second magnetic isolation layer 3 is connected to the first magnetic isolation layer 2.

6. A structure for suppressing magnetic flux leakage according to any one of claims 1 to 5, characterized in that: The stator unit comprises: stator core; a stator winding connected to the stator core; Wherein, the plurality of first magnetic isolation layers are all wrapped outside the stator core, and the plurality of second magnetic isolation layers are all wrapped outside the stator winding.

7. A motor, characterized in that: The invention comprises a structure for suppressing magnetic flux leakage as claimed in any one of claims 1 to 6, and further comprises: A rotor unit rotatably sleeved in the stator unit; A shell is sleeved outside the plurality of first magnetic isolation layers.

8. The motor according to claim 7, characterized in that: The rotor unit and the housing are rotatably connected via a bearing.

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