Stator structure capable of reducing height of motor stator coil

Abstract

The utility model discloses a stator structure capable of reducing the height of a motor stator coil, which comprises a stator iron core and a shaped stator coil, an iron core groove is arranged on the inner cavity wall of the stator iron core, the stator coil comprises a coil core arranged in the iron core groove, and a wire wrapping head I and a wire wrapping head II which are positioned at the upper end and the lower end of the stator iron core, insulating sheets are arranged between the upper end face of the stator iron core and the first wire wrapping head and between the lower end face of the stator iron core and the second wire wrapping head. Through the structure, the insulation voltage resistance value of the motor can be improved, the heights of the end parts of the stator coils can be respectively reduced by 2mm, the consumption of enameled wires is reduced, and the overall height of the motor is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stator structure, specifically, relate to a stator structure of reducing motor stator wire package height. BACKGROUND

[0002] Motor coil as live parts, in order to ensure the creepage distance between motor coil and iron core, in the motor production process, the coil of stator and stator core, must reserve ≥2mm safety distance, such as Figure 5 As shown, the safety distance h between the motor stator wire package and the stator core is 2.5mm, with the development of the flatness of refrigerator compressor industry, the height requirement of compressor is more and more low, which means that the height requirement of motor stator is more and more strict, in the increasingly mature motor industry today, the height of motor has been very difficult to reduce by the traditional extrusion stator wire package height mode. CONTENT OF THE UTILITY MODEL

[0003] In view of the above technical problems in the prior art, the utility model provides a stator structure for reducing the height of motor stator wire package, which can solve the above problems.

[0004] To achieve the above technical purpose, the technical scheme of the utility model is as follows:

[0005] A stator structure for reducing the height of motor stator wire package, comprising a stator core and a shaped stator wire package, the inner cavity wall of the stator core is provided with a core slot, the stator wire package comprises a wire package core installed in the core slot, wire package head one and wire package head two located at the upper and lower ends of the stator core, and an insulating sheet is arranged between the upper end face of the stator core and the wire package head one and between the lower end face of the stator core and the wire package head two.

[0006] Further, the distance between the upper end face of the stator core and the wire package head one and the distance between the lower end face of the stator core and the wire package head two are less than or equal to 0.5mm.

[0007] Further, the thickness of the insulating sheet is 0.25mm, and the rated impulse voltage of the insulating sheet is 5000V.

[0008] Further, three connecting holes one are arranged on the stator core, three connecting holes two matched with the connecting holes one are arranged on the insulating sheet, and an avoiding opening matched with the inner cavity port of the stator core is arranged in the middle part of the insulating sheet.

[0009] The utility model has the advantages that the motor insulation withstand voltage value can be improved through the structure of the application, the height of the end part of the stator wire package can be reduced by 2mm, the amount of enameled wire consumption is reduced, and the height of the motor complete machine is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only represent some of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0011] The present application will be described in further detail below with reference to the drawings.

[0012] Figure 1 is a front view of a stator structure with reduced height of a motor stator winding according to an embodiment of the present application;

[0013] Figure 2 is a structural schematic view of a connection between a stator core and an insulation sheet according to an embodiment of the present application;

[0014] Figure 3 is a top view of an insulation sheet according to an embodiment of the present application;

[0015] Figure 4 is a top view of a stator core according to an embodiment of the present application;

[0016] Figure 5 is a front view of a prior stator structure according to the background art.

[0017] In the drawings:

[0018] 100, stator core; 110, connecting hole one; 210, winding head one; 220, winding head two; 300, insulation sheet; 310, connecting hole two; 320, avoiding opening. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only represent some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0020] As Figures 1-4As shown, according to the utility model discloses a kind of stator structure for reducing motor stator winding height, including stator core 100 and the stator winding after shaping, the inner cavity wall of stator core 100 is equipped with core slot, the stator winding includes the winding core in the core slot, winding head one 210 and winding head two 220 located at the upper and lower ends of the stator core 100, the upper end surface of the stator core 100 and the winding head one 210 between, the lower end surface of the stator core 100 and the winding head two 220 between are equipped with insulating sheet 300.

[0021] As Figures 2-4 As shown, 0.25mm insulating sheet 300 (PET insulating sheet can be used) is padded on the upper and lower two end surfaces of stator core 100, which plays an insulating role between stator winding and stator core, winding head one 210 and winding head two 220 can directly contact insulating sheet 300 when enameled wire shaping, without the need to set a safety distance of 2.5mm, thereby reducing the height of stator winding (the end height of stator winding can be reduced by 2mm each), while the existing motor, the minimum electrical clearance is 2mm, the rated impulse voltage is 2500V, and the 0.25mm thick PET insulating sheet has a rated impulse voltage of about 5000V, which meets the 4KV requirement and improves the motor insulation withstand voltage value.

[0022] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A stator structure for reducing the height of a motor stator coil, comprising a stator core (100) and a shaped stator coil, wherein the inner wall of the stator core (100) is provided with a core groove, and the stator coil includes a coil core installed in the core groove, and a coil head one (210) and a coil head two (220) located at the upper and lower ends of the stator core (100), characterized in that, Insulating sheets (300) are provided between the upper end face of the stator core (100) and the first coil head (210), and between the lower end face of the stator core (100) and the second coil head (220).

2. The stator structure for reducing the height of the motor stator coil according to claim 1, characterized in that, The distance between the upper end face of the stator core (100) and the first coil head (210), and the distance between the lower end face of the stator core (100) and the second coil head (220) are both less than or equal to 0.5 mm.

3. A stator structure for reducing the height of the motor stator coil according to claim 2, characterized in that, The insulation sheet (300) has a thickness of 0.25 mm and a rated impulse voltage of 5000 V.

4. A stator structure for reducing the height of the motor stator coil according to claim 1, characterized in that, The stator core (100) is provided with three connection holes (110), the insulating sheet (300) is provided with three connection holes (310) that match the connection holes (110), and the insulating sheet (300) is provided with a clearance opening (320) in the middle that matches the inner cavity port of the stator core (100).

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