CN208078762U - A stator assembly of an external rotor motor and an external rotor motor applied thereto - Google Patents

Abstract

The utility model discloses a stator module of an external rotor motor and the external rotor motor using the same, which comprises a stator core, an end insulation, a coil winding and a connecting terminal, wherein the stator core comprises an annular yoke part positioned at the inner side and a plurality of tooth parts extending outwards from the radial direction of the annular yoke part, the end insulation is arranged on the end surface of the stator core, the coil winding is wound on the end insulation, the connecting terminal is arranged on the end insulation, the two ends of the connecting terminal are respectively connected with the wire end of an enameled wire and a power supply lead, the end insulation comprises the insulating yoke part and the insulating tooth parts extending out from the insulating yoke part, the outer edge of the insulating tooth part on at least one end surface of the end insulation is close to the outer edge and is provided with a plurality of outer inserting grooves capable of inserting the connecting terminal, the outer inserting grooves can facilitate the power supply lead of the multi-gear motor, and simultaneously, and the phenomena of wire end breakage or poor contact of the enameled wire are reduced.

Description

A stator assembly of an external rotor motor and an external rotor motor applied thereto

Technical field:

The utility model relates to a stator assembly of an outer rotor motor and the applied outer rotor motor.

Background technique:

Existing external rotor motor motors include a rotating shaft, an external rotor assembly, a stator assembly, bearing housings and bearings, the rotor assembly is installed on the rotating shaft, the external rotor assembly is connected to the rotating shaft, the external rotor assembly is sleeved outside the stator assembly, and the rotating shaft is supported and installed On the bearings, the rotating shaft is supported on the bearings of the two end covers. The stator assembly includes the stator core, end insulation, coil windings and terminals. The stator core includes the annular yoke on the inside and radially outward from the annular yoke. The end insulation is installed on the end face of the stator core, the coil winding is wound on the end insulation, the terminal is installed on the end insulation, and the end insulation includes an insulating yoke and a slave A plurality of insulating teeth protruding from the insulating yoke, a plurality of slots are provided on the insulating yoke with insulated ends, and connecting terminals are inserted into the slots, and the connecting terminals are wound with enameled wires and connected with lead wires, In the connection mode of this structure, the distance between the enameled wire head and the terminal is too long, which will cause the connection between the enameled wire end and the terminal to be very tight, which will easily damage the enameled wire, resulting in broken wires or poor contact of the enameled wire.

Invention content:

The purpose of this utility model is to provide a stator assembly of an external rotor motor and the external rotor motor applied thereto, which can solve the problem that the connection between the enameled wire head and the terminal is very tight, which will easily damage the enameled wire and cause the enameled wire to break. or poor contact.

The purpose of this utility model is achieved through the following technical solutions.

The first purpose of this utility model is to provide a stator assembly of an outer rotor motor, including a stator core, end insulation, coil windings and terminals. The stator core includes an inner ring yoke and a ring Several teeth protruding radially outward from the yoke, the end insulation is installed on the end face of the stator core, the coil winding is wound on the end insulation, the terminal is installed on the end insulation, the connection terminal The ends of the enameled wire and the power leads are respectively connected to each other. The end insulation includes an insulating yoke and several insulating teeth protruding from the insulating yoke. The insulating teeth on at least one end surface of the end insulation are close to the outer edge There are several outer slots for inserting terminal blocks.

The end face of the insulating yoke with the above-mentioned end insulation is provided with a plurality of inner slots which can be inserted into the terminal, and the inner slots and the outer slots are located on the same end face.

Outer slots are provided on the insulating teeth on the two end faces of the above-mentioned end insulation.

The above-mentioned connection terminal includes a plug-in part, a wire winding part and a connection part for crimping the power lead. The connection part for connecting the power lead wire is located between the plug-in part and the winding part.

The second purpose of this utility model is to provide an outer rotor motor, including a stator assembly, an outer rotor assembly, a rotating shaft, a bearing seat and a bearing, the outer rotor assembly is connected to the rotating shaft, the outer rotor assembly is sleeved outside the stator assembly, and the rotating shaft The support is mounted on bearings and the stator assembly is the stator assembly described above.

Compared with the prior art, the utility model has the following effects:

1) The utility model includes a stator core, end insulation, coil windings and terminals. The stator core includes an inner annular yoke and a number of teeth protruding radially outward from the annular yoke. The insulation is installed on the end surface of the stator core, the coil winding is wound on the end insulation, the terminal is installed on the end insulation, and the two ends of the terminal are respectively connected with the wire end of the enameled wire and the power lead. The end insulation includes an insulating yoke and several insulating teeth protruding from the insulating yoke. The insulating teeth on at least one end surface of the end insulation are provided with several outer slots for inserting terminals near the outer edge. , the outer slot can facilitate the multi-position motor to connect to the power lead, and at the same time, it can also prevent the wire end of the enameled wire from being tightened after being connected to the terminal, which will damage the wire end of the enameled wire, and reduce the phenomenon of broken wire or poor contact of the enameled wire end;

2) The end surface of the insulating yoke part of the end insulation is provided with a number of inner slots that can be inserted into the terminal. The inner slots and the outer slots are located on the same end surface, and the power leads can be inserted into It is more convenient to use in the inner slot or the outer slot;

3) Outer slots are provided on the insulating teeth on both ends of the end insulation, and the power leads can be inserted into the outer slots on different end faces according to the needs, which is more convenient to use;

4) The outer rotor motor improves the production efficiency of the outer rotor motor and improves the working stability of the outer rotor motor by improving the mechanism of the stator assembly.

Description of drawings:

Fig. 1 is a perspective view of the stator assembly of the outer rotor motor described in Embodiment 1;

Fig. 2 is an exploded perspective view of the stator assembly described in Embodiment 1;

Fig. 3 is a schematic structural view of the stator assembly described in Embodiment 1;

Fig. 4 is a schematic structural view of the stator assembly of the outer rotor motor according to the second embodiment.

Detailed ways:

The utility model will be described in further detail below through specific embodiments in conjunction with the accompanying drawings.

Embodiment one:

As shown in Figures 1 to 3, this embodiment provides a stator assembly for an outer rotor motor, including a stator core 1, end insulation 2, coil windings 3 and terminals 4, the stator core 1 It includes an inner annular yoke 11 and a number of teeth 12 protruding radially outward from the annular yoke 11. The end insulation 2 is installed on the end face of the stator core 1, and the coil winding 3 is wound on the end insulation 2. , the connecting terminal 4 is installed on the end insulation 2, and the two ends of the connecting terminal 4 are respectively connected with the head of the enameled wire and the power lead 40. A plurality of insulating tooth parts 22 protrude, and the outer edge of the insulating tooth part 22 on at least one end surface of the end insulation 2 is provided with a plurality of outer slots 221 into which the connecting terminals 4 can be inserted.

The stator assembly described in this embodiment, the outer slot 221 can facilitate the connection of the multi-gear motor to the power lead, and at the same time can prevent the wire ends of the enameled wire from being damaged after being connected to the terminal, so as to reduce the damage of the wire ends of the enameled wire. Line or poor contact phenomenon.

The end surface of the insulating yoke 21 of the above-mentioned end insulation 2 is provided with a plurality of inner slots 211 that can be inserted into the connection terminals 4 , and the inner slots 211 and the outer slots 221 are located on the same end surface.

The above-mentioned connection terminal 4 includes a plug-in part 41, a winding part 42 and a connecting part 43 for crimping the power lead 40. The plug-in part 41 is inserted in the outer slot 221, and the winding part 42 is wound There is a wire end of an enameled wire, and the connecting portion 43 of the crimped power lead 40 is located between the plug portion 41 and the winding portion 42 .

Embodiment two:

As shown in Figure 4, this embodiment provides a stator assembly of an outer rotor motor that is similar to the stator assembly of the outer rotor motor described in Embodiment 1, except that:

Outer slots 221 are provided on the insulating teeth 22 on both ends of the end insulation 2 .

The stator assembly described in this embodiment can insert power lead wires into the outer slots 221 on different end faces as required, which is more convenient to use.

Embodiment three:

This embodiment provides an outer rotor motor, including a stator assembly 10, an outer rotor assembly, a rotating shaft, a bearing housing and a bearing, the outer rotor assembly is installed and connected to the rotating shaft, the outer rotor assembly is sleeved outside the stator assembly 10, and the rotating shaft is supported and installed On the bearing, the stator assembly 10 is the stator assembly 10 described in the first or second embodiment above.

The above embodiment is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention are equivalent All replacement methods are included within the protection scope of the present invention.

Claims (5)

1. a kind of stator module of external rotor electric machine, including stator core (1), overhang insulation (2), coil windings (3) and wiring Terminal (4), the stator core (1) include being located at the ring-shaped yoke portion (11) of inside and being stretched radially outward from ring-shaped yoke portion (11) Several teeth portion (12) gone out, overhang insulation (2) are mounted on the end face of stator core (1), and it is exhausted that coil windings (3) are set around end On edge (2), the connecting terminal (4) is mounted on overhang insulation (2), and the both ends of the connecting terminal (4) are connected separately with paint The end of a thread and power supply lead wire (40) of envelope curve, the overhang insulation (2) include insulation yoke portion (21) and are stretched out from insulation yoke portion (21) Several insulation teeth portion (22), it is characterised in that：Insulation teeth portion (22) on the overhang insulation (2) at least end face is close to outer Lateral edges, which are equipped with several, can insert the outer slot (221) of connecting terminal (4).

2. a kind of stator module of external rotor electric machine according to claim 1, it is characterised in that：The overhang insulation (2) Insulation yoke portion (21) end face be equipped with several interior slots (211) for inserting connecting terminal (4), the interior slot (211) with The outer slot (221) is located on same end face.

3. a kind of stator module of external rotor electric machine according to claim 1, it is characterised in that：The overhang insulation (2) The outer slot (221) is equipped in the insulation teeth portion (22) of both ends of the surface.

4. a kind of stator module of external rotor electric machine according to claim 1 or 2 or 3, it is characterised in that：The terminals Sub (4) include the interconnecting piece (43) of plug division (41), winding section (42) and crimping power supply lead wire (40), and the plug division (41) is inserted It is inner mounted in outer slot (221), the end of a thread of enameled wire, the company of the crimping power supply lead wire (40) are arranged on the winding section (42) Socket part (43) is located between plug division (41) and winding section (42).

5. a kind of external rotor electric machine, including stator module (10), outer rotor component, shaft, bearing block and bearing, outer rotor component It is connected with shaft installation, outer rotor component is sleeved on outside stator module (10), and rotating shaft support is mounted on bearings, feature It is：The stator module (10) is the claims 1 to any stator module (10) of claim 4.