Rotor for air suspension motor

Abstract

The utility model discloses a rotor for air suspension motor, include: slot frame, enameled wire and punch piece, slot frame buckling is in punch piece outside, slot frame is wrapped in punch piece outside, and the wire arm is formed on the slot frame, and the wire arm outside is used for winding enameled wire, and the wire arm outside surface forms with first winding surface and second winding surface, and first winding surface is perpendicular with slot frame axial line, and second winding surface is parallel with slot frame axial line, and first winding surface and second winding face are passed through intermediate guide surface and are over, and the wire arm inner wall forms with the intermediate guide surface opposite chamfer surface. This rotor for air suspension motor solves the problem that the wall thickness of motor rotor insulation slot frame at the intermediate guide surface is thinner in the prior art, which leads to easy electric leakage at the intermediate guide surface.

Description

Technical Field

[0001] This utility model relates to motor rotors, specifically to a rotor for an air suspension motor. Background Technology

[0002] Chinese patent discloses a motor rotor insulation slot frame and an ESC motor including the same, with application number CN202322294148.8. The motor rotor insulation slot frame includes a rotating disk, a protruding slot, and an edge protrusion block. The rotating disk has a first wire-passing slot, and a protruding slot is formed on the other side of the rotating disk. The protruding slot has a second wire-passing slot. The first wire-passing slot and the second wire-passing slot are connected and allow enameled wire to pass through. A winding surface is formed between two adjacent first wire-passing slots. The winding surface is for winding enameled wire and is located on the side opposite to the protruding slot. The winding surface has an arc surface structure.

[0003] While this motor rotor insulation slot solves the problem of permanent magnets being easily damaged due to being attached to the toroidal motor rotor in existing technologies, it still has some drawbacks: the enameled wire is subjected to the greatest force at the middle guide surface, making it prone to breakage there. Furthermore, the wall thickness of the motor rotor insulation slot at the middle guide surface is relatively thin, making it susceptible to leakage. Utility Model Content

[0004] This utility model aims to provide a rotor for an air suspension motor, which solves the problem in the prior art where leakage is easy to occur at the intermediate guide surface due to the thin wall thickness of the motor rotor insulation slot frame at the intermediate guide surface.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: This utility model discloses a rotor for an air suspension motor, comprising: a slot frame, enameled wire, and a stamped sheet. The slot frame is fastened to the outside of the stamped sheet. The slot frame wraps around the stamped sheet, and a winding arm is formed on the slot frame. The winding arm is used to wind enameled wire. A first winding surface and a second winding surface are formed on the outer surface of the winding arm. The first winding surface is perpendicular to the axis of the slot frame, and the second winding surface is parallel to the axis of the slot frame. The first winding surface and the second winding surface are connected by an intermediate guide surface. The inner wall of the winding arm forms a chamfered surface that faces the intermediate guide surface.

[0006] Preferably, the chamfered surface includes a first L-shaped surface and a second L-shaped surface, which are arranged adjacent to each other and are both located at the corner of the inner wall of the winding arm.

[0007] Preferably, a plurality of winding grooves are recessed on the second winding surface of the winding arm, and each winding groove is used to position the enameled wire.

[0008] Preferably, there are two slot frames, and the stamping sheet is clamped between the two slot frames.

[0009] Preferably, the slot frame includes: a cover ring, the outer wall of the cover ring protruding to form a winding arm, and both the cover ring and the winding arm are fastened to the stamping sheet.

[0010] Preferably, the end of the stamped sheet that protrudes from the winding arm is the protruding end, and the protruding end is surrounded by a first baffle formed by a protrusion on the winding arm. The first baffle prevents the enameled wire on the winding arm from detaching.

[0011] Preferably, a second baffle protrudes from the winding arm and is located on the side of the first winding surface away from the centerline of the slot frame. The second baffle is used to prevent the enameled wire from detaching from the first winding surface on the winding arm.

[0012] Compared with the prior art, the present invention has the following beneficial effects: Because the basic shape of the winding arm is a cuboid structure, enameled wire needs to be wound around it. After winding, the enameled wire bends at the middle guide surface. The tensile force on the enameled wire at the middle guide surface is relatively large, making it prone to breakage. The middle guide surface has an arc structure, and the slot frame is made of insulating material. When the wall of the winding arm at the middle conductor surface is thin, the enameled wire is prone to leakage to the stamping plate after damage. Voltage on the stamping plate is not allowed, which makes the entire air suspension motor very susceptible to leakage, posing a certain risk of leakage. This application breaks away from the traditional approach of having a thin wall of the winding arm at the middle conductor surface. A chamfered surface is formed on the inner wall of the winding arm, directly opposite the middle guide surface. The chamfered surface design makes the wall of the winding arm at the middle conductor surface thicker. Therefore, after the enameled wire is damaged, the thicker wall of the winding arm at the middle conductor surface prevents leakage to the stamping plate, reducing the risk of leakage in the entire air suspension motor and improving the overall quality of the air suspension motor.

[0013] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the rotor used in an air suspension motor.

[0015] Figure 2 This is a schematic diagram of the rotor structure for the air suspension motor after the slot frame is opened.

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0017] Reference numerals: slot frame 1, first winding surface 11, second winding surface 12, chamfered surface 13, first L-shaped surface 131, second L-shaped surface 132, winding slot 14, first baffle 15, second baffle 16, stamping sheet 2. Detailed Implementation

[0018] To make the technical means, creative features, achieved objectives and functions of this utility model clearer and easier to understand, the utility model will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1 to 3 As shown, this utility model discloses a rotor for an air suspension motor, including: a slot frame 1, enameled wire (not shown in the figure), and a stamped sheet 2. The slot frame 1 is fastened to the outside of the stamped sheet 2. The slot frame 1 is wrapped around the stamped sheet 2. A winding arm is formed on the slot frame 1. The winding arm is used to wind the enameled wire. A first winding surface 11 and a second winding surface 12 are formed on the outer surface of the winding arm. The first winding surface 11 is perpendicular to the axis of the slot frame 1, and the second winding surface 12 is parallel to the axis of the slot frame 1. The first winding surface 11 and the second winding surface 12 are connected by an intermediate guide surface. A chamfered surface 13 is formed on the inner wall of the winding arm, which is directly opposite to the intermediate guide surface.

[0019] In this application, the chamfered surface 13 includes a first L-shaped surface 131 and a second L-shaped surface 132, which are arranged adjacent to each other. Both the first L-shaped surface 131 and the second L-shaped surface 132 are located at the corner of the inner wall of the winding arm. The optimal choice is that the chamfered surface 13 includes both the first L-shaped surface 131 and the second L-shaped surface 132. However, the chamfered surface 13 can also be a circular arc surface with a small inner diameter, or it can be an L-shaped surface. The arrangement of the first L-shaped surface 131 and the second L-shaped surface 132 makes the wall of the winding arm at the middle conductor surface thicker.

[0020] To position the enameled wire during winding, a plurality of winding grooves 14 are recessed on the second winding surface 12 of the winding arm, each groove 14 serving to position the enameled wire. The winding grooves 14 position the enameled wire, making the winding position more precise.

[0021] In this application, there are two slot frames 1, with a stamping sheet 2 clamped between the two slot frames 1. The slot frames 1 are formed in a mold, and during forming, the inner wall needs to have a first L-shaped surface 131 and a second L-shaped surface 132. Therefore, two slot frames 1 are designed to fasten to the outside of the stamping sheet 2, that is, two halves of the slot frame 1. Preferably, the slot frame 1 includes a cover ring, the outer wall of which protrudes to form a winding arm, and both the cover ring and the winding arm are fastened to the stamping sheet 2. The cover ring covers the middle of the stamping sheet 2, and the winding arm covers the edge of the stamping sheet 2.

[0022] The end of the stamped sheet 2 that protrudes from the winding arm is the protruding end, which is surrounded by a first baffle 15 formed by protrusions on the winding arm. The first baffle 15 prevents the enameled wire on the winding arm from detaching. The first baffle 15 restricts the enameled wire from detaching from the second winding surface 12 on the winding arm.

[0023] A second baffle 16 protrudes from the winding arm and is located on the side of the first winding surface 11 away from the axis of the slot frame 1. The second baffle 16 is used to prevent the enameled wire from detaching from the first winding surface 11 on the winding arm. The first baffle 15 and the second baffle 16 cooperate to fully position the enameled wire.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A rotor for an air suspension motor, characterized in that, include: The slot frame (1), the enameled wire and the stamping sheet (2) are fastened to the outside of the stamping sheet (2); The slot frame (1) is wrapped around the stamping sheet (2). A winding arm is formed on the slot frame (1). The winding arm is used to wind enameled wire. A first winding surface (11) and a second winding surface (12) are formed on the outer surface of the winding arm. The first winding surface (11) is perpendicular to the axis of the slot frame (1), and the second winding surface (12) is parallel to the axis of the slot frame (1). The first winding surface (11) and the second winding surface (12) are connected by an intermediate guide surface. A chamfered surface (13) is formed on the inner wall of the winding arm that is directly opposite to the intermediate guide surface.

2. The rotor for an air suspension motor according to claim 1, characterized in that, The chamfered surface (13) includes a first L-shaped surface (131) and a second L-shaped surface (132). The first L-shaped surface (131) and the second L-shaped surface (132) are arranged adjacent to each other. Both the first L-shaped surface (131) and the second L-shaped surface (132) are located at the corner of the inner wall of the winding arm.

3. The rotor for an air suspension motor according to claim 2, characterized in that, A number of winding grooves (14) are formed in the second winding surface (12) of the winding arm, and each winding groove (14) is used to position the enameled wire.

4. The rotor for an air suspension motor according to any one of claims 1 to 3, characterized in that, There are two slot frames (1), and the stamping sheet (2) is clamped between the two slot frames (1).

5. The rotor for an air suspension motor according to claim 4, characterized in that, The slot frame (1) includes: a cover ring, the outer wall of the cover ring protruding to form a winding arm, and both the cover ring and the winding arm are fastened to the stamping sheet (2).

6. The rotor for an air suspension motor according to claim 5, characterized in that, The end of the stamped sheet (2) that protrudes from the winding arm is called the protruding end. The protruding end is surrounded by the first baffle (15) formed by the protrusion on the winding arm. The first baffle (15) prevents the enameled wire on the winding arm from detaching.

7. The rotor for an air suspension motor according to claim 6, characterized in that, A second baffle (16) protrudes from the winding arm. The second baffle (16) is located on the side of the first winding surface (11) away from the axis of the slot frame (1). The second baffle (16) is used to prevent the enameled wire from detaching from the first winding surface (11) on the winding arm.

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