CN214412446U

CN214412446U - Enhanced phase-to-phase insulated outer rotor direct current brushless motor winding

Info

Publication number: CN214412446U
Application number: CN202120271814.4U
Authority: CN
Inventors: 孙勇
Original assignee: Haining Aiflo Electric Co ltd
Current assignee: Haining Aiflo Electric Co ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-10-15
Anticipated expiration: 2031-01-29

Abstract

The utility model discloses an enhanced phase-to-phase insulated outer rotor brushless DC motor winding, which relates to the field of DC motors and comprises an iron core, an insulating rubber ring and an enameled wire, wherein the insulating rubber ring is injected at the periphery of the iron core and is used for winding the enameled wire, so that the enameled wire is isolated from the iron core; a plurality of winding units are uniformly distributed along the circumference of the insulating rubber ring, and each winding unit is a three-phase winding consisting of a U-phase unit, a V-phase unit and a W-phase unit; the number of the enameled wires is three, and the enameled wires respectively correspond to the U phase, the V phase and the W phase of each winding unit, so that the enameled wires of the U phase sequentially pass through and are wound on the U phase of each winding unit, the enameled wires of the V phase sequentially pass through and are wound on the V phase of each winding unit, and the enameled wires of the W phase sequentially pass through and are wound on the W phase of each winding unit. The utility model discloses a plastic pillar forms fixed knot and constructs, and U looks, V looks, the W looks of effective separation three-phase winding strengthen insulating properties between U looks, V looks, the W looks at the distribution of R face.

Description

Enhanced phase-to-phase insulated outer rotor direct current brushless motor winding

Technical Field

The utility model relates to a direct current motor's field, concretely relates to interphase insulating external rotor direct current brushless motor winding of enhancement mode.

Background

With the continuous development of power electronics, microelectronic technology and modern control theory, the speed regulation technology of the alternating current motor is also continuously improved. In some high-power occasions, such as ship propulsion systems, electric bus propulsion systems and the like, the requirement on the insulation performance between the phases of the windings of the brushless direct-current motor is high. The phase insulation performance of the existing three-phase motor winding is not strong enough and cannot meet the requirement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of prior art existence, and provide an alternate insulating external rotor direct current brushless motor winding of enhancement mode, have simple structure, simple to operate, reliable and stable advantage.

The purpose of the utility model is accomplished through following technical scheme: an enhanced phase-to-phase insulated outer rotor direct current brushless motor winding comprises an iron core, an insulating rubber ring and an enameled wire, wherein the insulating rubber ring is injected on the periphery of the iron core and is used for winding the enameled wire, so that the enameled wire is isolated from the iron core; a plurality of winding units are uniformly distributed along the circumference of the insulating rubber ring, and each winding unit is a three-phase winding consisting of a U-phase unit, a V-phase unit and a W-phase unit; the number of the enameled wires is three, and the enameled wires respectively correspond to the U phase, the V phase and the W phase of each winding unit, so that the enameled wires of the U phase sequentially pass through and are wound on the U phase of each winding unit, the enameled wires of the V phase sequentially pass through and are wound on the V phase of each winding unit, and the enameled wires of the W phase sequentially pass through and are wound on the W phase of each winding unit.

As a further technical scheme, the insulating rubber ring is provided with an R surface and an F surface deviating from the R surface, and a shaping support column is arranged at the interval between any adjacent phase units on the R surface; and a slot is formed between the inner side of the shaping support and the iron core and used for routing the enameled wire, a slot A is formed along one side wall of the shaping support for the enameled wire to penetrate in, and a slot B is formed along the other side wall of the shaping support for the enameled wire to penetrate out.

As a further technical scheme, the angle between adjacent winding units is 90 degrees, and the angle between the U phase and the V phase and the angle between the V phase and the W phase of each winding unit is 30 degrees.

The utility model has the advantages that: a fixed structure is formed by shaping the supporting columns, so that the distribution of the U phase, the V phase and the W phase of the three-phase winding on the R surface is effectively separated, and the insulation performance among the U phase, the V phase and the W phase is enhanced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a side view of the structure of the present invention.

Fig. 3 is a schematic structural diagram of the R surface of the insulating rubber ring.

Fig. 4 is a schematic structural diagram of the F-face of the insulating rubber ring.

Description of reference numerals: the iron core 1, the insulating rubber ring 2, the R surface 2-1, the F surface 2-2, the shaping pillar 2-3, the slot A port 2-4, the slot B port 2-5 and the enameled wire 3.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings:

example (b): as shown in fig. 1 and 2, the enhanced phase-to-phase insulated outer rotor dc brushless motor winding comprises an iron core 1, an insulating rubber ring 2 and an enameled wire 3, wherein the insulating rubber ring 2 is injection-molded on the periphery of the iron core 1 and is wound by the enameled wire 3, so that the enameled wire 3 is isolated from the iron core 1; referring to the attached drawings 3 and 4, 4 winding units are uniformly distributed along the circumference of the insulating rubber ring 2, each winding unit is a three-phase winding consisting of three phase units of a U phase, a V phase and a W phase, the adjacent winding units form an angle of 90 degrees, and the U phase and the V phase, the V phase and the W phase of each winding unit form an angle of 30 degrees; the first to fourth U-phase units are sequentially named as U1-U4, the first to fourth V-phase units are sequentially named as V1-V4, and the first to fourth W-phase units are sequentially named as W1-W4.

The insulating rubber ring 2 is provided with an R surface 2-1 and an F surface 2-2 deviating from the R surface 2-1, and shaping pillars 2-3 are arranged at intervals between any adjacent phase units on the R surface 2-1; a slot is formed between the inner side of the shaping pillar 2-3 and the iron core 1 and is used for routing the enameled wire 3, a slot A2-4 is formed along one side wall of the shaping pillar 2-3 for the enameled wire 3 to penetrate in, and a slot B2-5 is formed along the other side wall of the shaping pillar 2-3 for the enameled wire 3 to penetrate out.

The enameled wires 3 are three in number and respectively correspond to the U phase, the V phase and the W phase of each winding unit, so that the enameled wires 3 of the U phase sequentially pass through and are wound on the U phase of each winding unit, the enameled wires 3 of the V phase sequentially pass through and are wound on the V phase of each winding unit, and the enameled wires 3 of the W phase sequentially pass through and are wound on the W phase of each winding unit. Taking the V-phase as an example, the starting end of the enameled wire 3 is wound on the phase unit V1, the enameled wire 3 passes through the slot B2-5 on the side wall of the corresponding shaping pillar 2-3 after being wound for a plurality of circles, and is routed to the phase unit V2 along the slot, and the enameled wire 3 passes through the slot a 2-4 on the side wall of the corresponding shaping pillar 2-3 and is wound on the phase unit V2; similarly, after winding a plurality of circles, the enameled wire 3 penetrates out of a slot B port 2-5 on the side wall of the corresponding shaping pillar 2-3, and is routed to a phase unit V3 along the slot, and the enameled wire 3 penetrates in from a slot A port 2-4 on the side wall of the corresponding shaping pillar 2-3 and is wound on the phase unit V3; after being wound for a plurality of circles, the enameled wire 3 penetrates out of a wire slot B port 2-5 on the side wall of the corresponding shaping pillar 2-3 and is routed to a phase unit V4 along the wire slot, the enameled wire 3 penetrates in from a wire slot A port 2-4 on the side wall of the corresponding shaping pillar 2-3 and is wound on the phase unit V4, and finally the tail end of the enameled wire 3 penetrates out of the phase unit V4. For the U-phase and the W-phase, the winding and routing of the enamel wire 3 are the same.

The utility model discloses a special wire casing design of insulating rubber ring's R face, every groove wire winding is accomplished the back, walks the line along the wire casing, gets into from wire casing A mouth, and wire casing B mouth comes out, carries out the wire winding of next groove, forms fixed knot through the plastic pillar and constructs, effectively separates three-phase winding U looks, V looks, W looks at the distribution of R face, strengthens insulating between U looks, V looks, the W looks.

It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.

Claims

1. The utility model provides an insulating outer rotor direct current brushless motor winding of enhancement mode interphase which characterized in that: the iron core comprises an iron core (1), an insulating rubber ring (2) and an enameled wire (3), wherein the insulating rubber ring (2) is injected on the periphery of the iron core (1) for winding the enameled wire (3), so that the enameled wire (3) is isolated from the iron core (1); a plurality of winding units are uniformly distributed along the circumference of the insulating rubber ring (2), and each winding unit is a three-phase winding consisting of three phase units, namely a U phase unit, a V phase unit and a W phase unit; the number of the enameled wires (3) is three, and the enameled wires correspond to the U phase, the V phase and the W phase of each winding unit respectively, so that the enameled wires (3) of the U phase sequentially pass through and are wound on the U phase of each winding unit, the enameled wires (3) of the V phase sequentially pass through and are wound on the V phase of each winding unit, and the enameled wires (3) of the W phase sequentially pass through and are wound on the W phase of each winding unit.

2. The enhanced phase-to-phase insulated outer rotor dc brushless motor winding of claim 1, wherein: the insulating rubber ring (2) is provided with an R surface (2-1) and an F surface (2-2) deviating from the R surface (2-1), and shaping pillars (2-3) are arranged at intervals between any adjacent phase units on the R surface (2-1); a wire groove is formed between the inner side of the shaping support (2-3) and the iron core (1) and used for routing the enameled wire (3), a wire groove A opening (2-4) is formed along one side wall of the shaping support (2-3) for the enameled wire (3) to penetrate in, and a wire groove B opening (2-5) is formed along the other side wall of the shaping support (2-3) for the enameled wire (3) to penetrate out.

3. An enhanced phase-to-phase insulated outer rotor dc brushless motor winding according to claim 1 or 2, characterized in that: the adjacent winding units are 90 degrees, and the U phase and the V phase and the W phase of each winding unit are 30 degrees.