Skewed slot rotor core structure and motor

Abstract

The utility model discloses a skewed slot rotor iron core structure and a motor, the skewed slot rotor iron core structure comprises a skewed rotating core, the skewed rotating core comprises a plurality of laminated sheets which are overlapped with each other, the plurality of laminated sheets are provided with interlayer sheets along a circumferential array, the plurality of interlayer sheets are overlapped to form an interlayer plate, the interlayer sheets of the laminated sheets at two ends of the skewed rotating core are provided with clamping grooves, and the clamping grooves are arranged on the interlayer sheets of the laminated sheets at two ends of the skewed rotating core. And the copper wire is driven to be clamped on the clamping groove. According to the skewed slot rotor iron core structure and the motor provided by the utility model, the laminated sheets different from the other laminated sheets are arranged at the two ends of the skewed rotating core, the clamping grooves are arranged on the laminated sheets at the two ends, and when a wire harness is clamped at the two ends of the sandwich plate 13, the wire harness is pulled by the wire harness to be clamped in the clamping grooves along the sandwich plate, so that the wire harness is fixed at the two ends of the skewed rotating core; and continuous traction is not needed, so that the operation of a subsequent assembly link is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of rotor cores, in particular to a skewed slot rotor core structure and a motor. Background Art

[0002] The rotor core drives the shaft to rotate under the action of the rotating magnetic field after the motor is energized. Compared with the vertical rotor, the skewed rotor has the function of reducing vibration and noise and improving starting performance.

[0003] Patent No. CN103066721A, published (announced) on April 24, 2013, discloses a skewed slot rotor core comprising a rotating shaft and a skewed slot rotor core. The skewed slot core is composed of two or more unidirectional skewed slot cores, wherein two adjacent unidirectional skewed slot cores have different skew directions, and the adjacent skew slots form an inflection point at their intersection. The unidirectional skewed slot core is formed by stacking rotor stampings. Because each skewed segment of the unidirectional skewed slot rotor core is stacked and then integrally processed to form the corresponding connecting keyways of the unidirectional skewed slot rotor core, each rotor stamping can be directly punched on a conventional punch press, significantly reducing processing cycle time and cost. The present invention also relates to a motor including such a skewed slot rotor core and a method for manufacturing the skewed slot rotor core.

[0004] In the prior art including the above-mentioned patent, a copper wire bundle needs to be set on the rotor core. When the copper wire bundle is energized, a rotating magnetic field is generated to achieve rotation. However, the wire bundle slots on the skewed slot rotor core are in an inclined state. When winding the wire bundle, a pulling force in a certain direction needs to be applied and maintained, resulting in cumbersome winding and installation steps. Utility Model Content

[0005] The purpose of the utility model is to provide a skew slot rotor core structure and a motor, aiming to solve the problem that the skew slot needs to be fixed with tension, which is inconvenient to assemble.

[0006] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: a skewed slot rotor core structure, comprising a skewed rotating core, wherein the skewed rotating core comprises a plurality of laminated sheets stacked on each other, wherein the plurality of laminated sheets are provided with interlayer sheets in a circumferential array, wherein the plurality of interlayer sheets are stacked to form a sandwich plate, and wherein the interlayer sheets of the laminated sheets at both ends of the skewed rotating core are provided with retaining grooves, and the copper wires are driven and clamped to the retaining grooves.

[0007] Preferably, the sandwich plate includes a first inclined surface and a second inclined surface, and a limiting groove corresponding to the locking groove is formed on the second inclined surface.

[0008] Preferably, a permanent magnet is provided on the oblique rotating core.

[0009] A motor further includes a motor housing, wherein a stator core is arranged in the motor housing, and the stator core and the oblique rotating core are coaxially arranged.

[0010] Preferably, the stator core is provided with wire harness slots corresponding to the sandwich panels in a circumferential array, and limiting bars are symmetrically arranged in the wire harness slots.

[0011] Preferably, fixing grooves are provided in a linear array in the wiring trough, and the limiting strips are driven and clamped in the fixing grooves.

[0012] Preferably, a motor head cover is provided on the motor outer cover.

[0013] In the above technical solution, the utility model provides a skewed slot rotor core structure and motor, which have the following beneficial effects: laminated sheets different from the remaining laminated sheets are provided at both ends of the skewed rotating core, and retaining grooves are provided on the laminated sheets at both ends. When the wiring harness is clamped to the two ends of the sandwich plate 13, it will be pulled along the sandwich plate and clamped in the retaining groove to fix the wiring harness to the two ends of the skewed rotating core, without the need for continuous pulling, which facilitates the operation of subsequent assembly links. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 A schematic diagram of an explosion of an oblique rotating core provided in an embodiment of the present utility model;

[0016] Figure 2 A schematic diagram of a motor housing provided in an embodiment of the present utility model;

[0017] Figure 3 for Figure 2 A in the middle is an enlarged schematic diagram;

[0018] Figure 4 An overall cross-sectional schematic diagram provided for an embodiment of the present utility model;

[0019] Figure 5 A schematic diagram of a motor housing and an oblique rotating core provided in an embodiment of the present utility model;

[0020] Figure 6 This is a schematic diagram of a stator core provided in an embodiment of the present utility model.

[0021] Description of reference numerals:

[0022] 1. Oblique rotating core; 10. Laminated sheet; 101. Retaining groove; 11. Central axis; 12. Limiting bar; 13. Sandwich plate; 131. First inclined surface; 132. Second inclined surface; 133. Restricting groove; 14. Permanent magnet; 2. Stator core; 21. Wire harness groove; 211. Fixing groove; 3. Motor cover; 31. Motor head cover. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0024] Example 1

[0025] like Figure 1-6 As shown, a skewed slot rotor core structure includes a skewed core 1, which includes a plurality of stacked laminates 10. The laminates 10 are provided with interlayer sheets arranged in a circumferential array. The interlayer sheets are stacked to form a sandwich plate 13. The interlayer sheets of the laminates 10 at both ends of the skewed core 1 are provided with retaining grooves 101, and the copper wires are driven and clamped to the retaining grooves 101.

[0026] Specifically, the oblique rotating core 1 is composed of a plurality of laminated sheets 10 of the same shape stacked together, and the laminated sheets 10 are all sleeved on the central axis 11. The plurality of laminated sheets 10 are slightly rotated along the central axis 11 to form a plurality of sandwich sheets into an inclined sandwich plate 13, and the sandwich sheets of the laminated sheets 10 at both ends of the oblique rotating core 1 are provided with a retaining groove 101, which is composed of two symmetrical slopes, so that when the wire harness is pulled, it will be clamped along the slope into the retaining groove 101 to fix the wire harness.

[0027] In the above technical solution, laminated sheets 10 different from the other laminated sheets 10 are provided at both ends of the oblique core 1, and retaining grooves 101 are provided on the laminated sheets 10 at both ends. When the wiring harness is clamped to the two ends of the sandwich plate 13, it will be pulled along the sandwich plate and clamped in the retaining groove 101 to fix the wiring harness to the two ends of the oblique core 1. There is no need for continuous pulling, which facilitates the operation of subsequent assembly links.

[0028] As a further embodiment provided by the present invention, the sandwich plate 13 includes a first inclined surface 131 and a second inclined surface 132 . A limiting groove 133 corresponding to the locking groove 101 is formed on the second inclined surface 132 .

[0029] Specifically, the second bevel 132 mainly functions to limit the wiring harness, and the first bevel 131 serves as a supplement for wiring harness filling, so that when the wiring harness is inserted, it first enters the first bevel 131 and is then pulled and fixed in the limiting groove 133 in the second bevel 132 to further fix the wiring harness.

[0030] As an embodiment further provided by the present invention, a permanent magnet 14 is provided on the oblique rotating core 1. The permanent magnet 14 can enhance the magnetic power and maintain the temperature output during low-speed operation.

[0031] Example 2

[0032] like Figure 1-6 As shown, a motor further includes a motor housing 3 , wherein a stator core 2 is disposed in the motor housing 3 , and the stator core 2 is coaxially disposed with the oblique rotating core 1 .

[0033] Specifically, both the stator core 2 and the oblique rotating core 1 are provided with wiring harnesses to generate a rotating magnetic field by energizing the stator core 2 , thereby driving the oblique rotating core 1 to rotate.

[0034] As an embodiment further provided by the present invention, the stator core 2 is provided with a circumferential array of wire harness slots 21 corresponding to the sandwich plates 13, and the limiting bars 12 are symmetrically arranged in the wire harness slots 21. The wire harness slots 21 are provided with a linear array of fixing slots 211, and the limiting bars 12 are driven and clamped in the fixing slots 211.

[0035] Specifically, the stator core 2 is provided with a circumferential array of wire harness grooves 21 corresponding to the sandwich panels 13. The limiting strips 12 can be inserted into different fixing grooves 211 according to the power and needs to change the amount of wire harness in the wire harness grooves 21, thereby achieving power changes. The stator core 2 is composed of multiple superimposed sheet workpieces, and the limiting strips 12 can also fix the multiple sheet workpieces to prevent them from loosening.

[0036] As an embodiment further provided by the present invention, a motor head cover 31 is provided on the motor outer cover 3 .

[0037] Furthermore, other components such as brushes and slip rings are provided in the motor head cover 31, which are existing technologies and will not be described in detail.

[0038] Working principle: When the wiring harness is installed on the oblique rotating core 1, the wiring harness is first entered into the first inclined surface 131, and then pulled and fixed in the limiting groove 133 in the second inclined surface 132. The wiring harness is clamped on the second inclined surface 132 and the wiring harness is pulled again. When the wiring harness is pulled, it will be clamped in the retaining groove 101 along the slope to complete the wiring harness installation. When the wiring harness is installed on the stator core 2, according to the required wiring groove 21, the limiting strip 12 is clamped in the corresponding fixing groove 211, and then the wiring harness is installed.

[0039] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A skewed slot rotor core structure, characterized in that: The invention comprises an oblique rotating core (1), wherein the oblique rotating core (1) comprises a plurality of mutually superimposed laminated sheets (10), wherein interlayer sheets are arranged in a circumferential array on the plurality of laminated sheets (10), wherein the plurality of interlayer sheets are superimposed to form an interlayer plate (13), and wherein the interlayer sheets of the laminated sheets (10) at both ends of the oblique rotating core (1) are provided with retaining grooves (101), and the copper wire is driven and retaining in the retaining grooves (101).

2. The skewed slot rotor core structure according to claim 1, characterized in that: The sandwich plate (13) comprises a first inclined surface (131) and a second inclined surface (132), and the second inclined surface (132) is provided with a limiting groove (133) corresponding to the locking groove (101).

3. The skewed slot rotor core structure according to claim 2, characterized in that: A permanent magnet (14) is provided on the oblique rotating core (1).

4. A motor, characterized in that: The invention comprises the skew slot rotor core structure according to any one of claims 1 to 3, and further comprises a motor housing (3), wherein a stator core (2) is arranged inside the motor housing (3), and the stator core (2) is coaxially arranged with the skew rotor core (1).

5. The motor according to claim 4, characterized in that: The stator core (2) is provided with wire harness grooves (21) corresponding to the sandwich plates (13) in a circumferential array, and limiting bars (12) are symmetrically arranged in the wire harness grooves (21).

6. The motor according to claim 5, characterized in that: The cable harness trough (21) is provided with fixing grooves (211) in a linear array, and the limiting strips (12) are driven and clamped in the fixing grooves (211).

7. The motor according to claim 4, characterized in that: A motor head cover (31) is provided on the motor outer cover (3).

Images