Window lift motor rotor

Abstract

The utility model discloses a glass lifter motor rotor, including an armature shaft and an iron core sleeved on the armature shaft, the iron core is formed by stacking a plurality of rotor sheets, the rotor sheets are provided with a plurality of grooves evenly distributed in the circumferential direction, the radial outer ends of the grooves are gathered to form notches, and the characteristic is that: the inclined slot torsion angle of the iron core is 360° / z*2 (z is the number of rotor sheet slots), the inclined slot torsion angle is the misalignment angle of the rotor sheets located at the two end faces, and the corresponding adjacent upper and lower rotor sheets are evenly misaligned; the rotor sheet has a diameter of 23mm and a thickness of 0.5mm. The utility model can prevent the enameled wire winding from being de-slotted, can make the magnetic resistance evenly distributed in the circumferential range of the rotor air gap, can effectively improve the motor efficiency, and reduce magnetic noise.

Description

Technical Field

[0001] The utility model relates to an improved invention of a glass lifter motor, in particular to an improved invention of a glass lifter motor rotor. Background Art

[0002] The rotor sheets are slotted for winding. However, after the rotor sheets are slotted, the straight slots in the stacked core will cause uneven magnetic resistance in the entire air gap circumference, thereby reducing the motor's operating efficiency and increasing magnetic noise. At the same time, the traditional rotor sheets use a ten-slot setting, and the required winding is complex and costly. At the same time, the slot size is large, and the enameled wire is prone to falling out of the slot during high-speed operation. Paint dripping is required to prevent the enameled wire from falling out of the slot. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a window lifter motor rotor which can prevent the enameled wire winding from falling out of the slot.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: the window lifter motor rotor includes an armature shaft and an iron core sleeved on the armature shaft, the iron core is formed by stacking a plurality of rotor sheets, the rotor sheets are provided with a plurality of grooves evenly distributed in the circumferential direction, the radial outer ends of the grooves are gathered to form notches, and the utility model is characterized in that: the inclined groove torsion angle of the iron core is 360° / z*2 (z is the number of rotor sheet grooves), the inclined groove torsion angle is the misalignment angle of the rotor sheets located at the two end faces, and the corresponding adjacent upper and lower rotor sheets are evenly misaligned; the rotor sheet has a diameter of 23 mm and a thickness of 0.5 mm.

[0005] The rotor plate is provided with eight slots, corresponding to z=8, and the slot width is 2mm.

[0006] The rotor sheets are stacked without gaps, the stacking burrs are in the same direction, and the armature shaft is pressed in along the burr direction of the rotor sheets.

[0007] Epoxy coatings are provided on both end surfaces of the iron core and on the outer circle of the armature shaft adjacent thereto.

[0008] The beneficial effect of the utility model is that the improved window lifter motor rotor has a reasonably set inclined slot torsion angle of a certain angle on the rotor, and the upper and lower rotor sheets are misaligned, which can prevent the enameled wire winding from falling out of the slot; the inclined slots of the rotor are arranged according to the calculated angle, which can make the magnetic resistance evenly distributed in the circumference of the rotor air gap, which can effectively improve the motor efficiency and reduce magnetic noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] Figure 2 This is a structural diagram of the rotor sheet of the utility model. DETAILED DESCRIPTION

[0012] The accompanying drawings show the structure of the utility model, and the following further describes its relevant details in conjunction with the accompanying drawings. Figure 1-2 The window lifter motor rotor comprises an armature shaft 1 and an iron core 2 sleeved on the armature shaft 1, wherein the iron core 2 is formed by stacking a plurality of rotor sheets 3, and the rotor sheets 3 are provided with a plurality of grooves 4 uniformly distributed in the circumferential direction, and the radial outer ends of the grooves 4 are gathered to form notches 5, and the torsion angle of the inclined groove 6 of the iron core 2 is 360° / z*2 (z is the number of grooves of the rotor sheet 3), and the torsion angle of the inclined groove 6 is the misalignment angle of the rotor sheet 3 located at the two end surfaces, and the corresponding adjacent upper and lower rotor sheets 3 are uniformly misaligned; the diameter of the rotor sheet 3 is 23 mm and the thickness is 0.5 mm, so that the rotor sheets 3 can be stacked to the required height size of the rotor conveniently.

[0013] As a further improved specific implementation method, the rotor sheet 3 is set with eight slots, and the corresponding z=8, which is convenient for winding the winding; compared with the traditional ten-slot rotor sheet 3, the rotor winding winding cost is reduced; the slot 5 is 2mm wide, which can prevent the enameled wire from falling out of the slot when the motor rotor is running at high speed. The traditional rotor sheet 3 requires paint dripping to prevent the enameled wire from falling out of the slot. This rotor has a higher slot fill rate and does not require paint dripping to prevent the enameled wire from falling out of the slot, which reduces the difficulty of the rotor production process and reduces the rotor cost; at the same time, the core 2 has a larger slot space, which is convenient for adjusting parameters of motors with different speeds and different powers.

[0014] As a further improved specific implementation, the rotor sheets 3 are stacked without gaps, the stacking burrs are in the same direction, and the armature shaft 1 is pressed in along the burr direction of the rotor sheets to avoid damage to the armature shaft.

[0015] As a further improved specific implementation, epoxy coatings 7 are provided on both end surfaces of the iron core 2 and on the outer circumference of the armature shaft 1 adjacent thereto, so as to insulate the armature shaft 1 and provide voltage-resistant and anti-breakdown protection.

[0016] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A window lifter motor rotor, comprising an armature shaft and an iron core sleeved on the armature shaft, wherein the iron core is formed by stacking a plurality of rotor sheets, and the rotor sheets are provided with a plurality of grooves uniformly distributed in the circumferential direction, wherein the radial outer ends of the grooves are gathered to form notches, and wherein the characteristics are as follows: The skew slot torsion angle of the iron core is 360° / z*2, where z is the number of rotor slots. The skew slot torsion angle is the misalignment angle of the rotor plates located at the two end faces, and the corresponding adjacent upper and lower rotor plates are evenly misaligned. The rotor plate has a diameter of 23 mm and a thickness of 0.5 mm.

2. The window lifter motor rotor according to claim 1, characterized in that: The rotor plate is provided with eight slots, corresponding to z=8, and the slot width is 2mm.

3. The window lifter motor rotor according to claim 1, characterized in that: The rotor sheets are stacked without gaps, the stacking burrs are in the same direction, and the armature shaft is pressed in along the burr direction of the rotor sheets.

4. The window lifter motor rotor according to claim 1, characterized in that: Epoxy coatings are provided on both end surfaces of the iron core and on the outer circle of the armature shaft adjacent thereto.

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