CN209896798U - A stator assembly and an outer rotor motor using the same - Google Patents

Abstract

The utility model discloses a stator module and an external rotor motor using the same, which comprises a stator core, an end insulation coil winding, a temperature controller and a wiring board, wherein the stator core comprises a yoke part and a tooth part, the stator core is wound with the coil winding, the wiring board is positioned at the end part of the coil winding at one end of the stator core, a mounting sleeve is arranged in the middle of the end insulation, the bottom of the mounting sleeve extends out of the insulation yoke part, the edge of the insulation yoke part is protruded with a plurality of insulation tooth parts along the circumferential direction at intervals, the end insulation yoke part with the end insulation is mounted in a matching way with the yoke part of the stator core, the end insulation tooth part with the end insulation is mounted in a matching way with the tooth part of the stator core, at least one insulation tooth part of the plurality of insulation tooth parts is provided with a spacing post, after the coil winding, the end height of the stator winding is effectively reduced, and the process operation difficulty that a fixed temperature controller needs to be placed in the winding process is avoided.

Description

A stator assembly and an outer rotor motor using the same

Technical field:

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

Background technique:

Most of the existing motors are two-pole motors. Due to the smaller size of the motor itself, the problem of the high end height of the wound stator is more obvious. If you continue to use the existing method of placing the thermostat, after the stator is wound around the secondary wire, place the thermostat, then wind the main wire, squeeze the thermostat between the main and secondary windings, and then wind the wire. For shaping the stator, only a small pressure can be used. If the pressure is large, it may cause irreversible damage to the thermostat; if a small pressure is used for shaping, the shaping effect is not obvious, and the winding end height cannot be effectively reduced. This virtually increases the end height of the stator assembly, which is not conducive to saving the structural space of the motor. And after winding the auxiliary wire, fix the thermostat with interphase insulating tape, and then rewind the wire. The fixing of the thermostat is not very firm, and the winding process may move due to force.

In order to solve the problem of the height of the winding end of the motor with a small number of poles, and the problem of how to place the fixed thermostat during the winding process of the machine, a new windmill structure is designed. This new solution can effectively reduce the stator The high end of the winding also avoids the technical difficulty of placing a fixed thermostat during the winding process.

Utility model content:

The purpose of the utility model is to provide a stator assembly and an outer rotor motor applied thereto, which can effectively reduce the end height of the stator winding, and avoid the technical difficulty of placing a fixed temperature controller during the winding process.

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

A stator assembly includes a stator iron core, an insulating coil winding at an end, a temperature controller and a terminal board. The stator iron core includes a yoke and a tooth, and two adjacent tooth parts form a wire slot, and the end is installed in an insulating manner. Coil windings are wound on both end faces of the stator iron core, and the wiring board is located at the end of the coil winding at one end of the stator iron core. An installation sleeve is arranged in the middle of the insulation of the end part, and the installation sleeve is opened in the middle. There is a through hole, and an insulating yoke portion extends outward from the bottom of the mounting sleeve. The edge of the insulating yoke portion protrudes with a number of insulating tooth portions at intervals along the circumferential direction. The insulating yoke portion of the end portion is insulated from the stator core. The yoke portion is matched and installed, and the insulating teeth portion of the insulating end portion is matched with the teeth portion of the stator iron core. After the coil winding is wound on the iron core, a temperature controller is installed between the coil winding and the limit column, and the temperature controller is fixed between the limit column and the coil winding.

A first anti-loosening structure is provided at the end of the above-mentioned limiting column.

The above-mentioned first anti-releasing structure is a barb.

The above-mentioned mounting sleeve is provided with a second anti-loosening structure, the wiring board is provided with a central hole, the wiring board is sleeved on the outer side of the mounting sleeve through the central hole, and the wiring board is located at the end of the coil winding. , the second anti-releasing structure presses on the top of the wiring board and axially fixes the wiring board.

The second anti-releasing structure is a barb, a plurality of barbs are arranged on the top of the installation sleeve, and the hook head of the barb is arranged outward.

Connecting grooves are excavated on the bottom surfaces of the above-mentioned insulating yoke portion and the plurality of insulating tooth portions.

A number of protruding posts are axially protruded from the bottom of the insulating yoke, an end surface of the stator core is provided with positioning holes corresponding to the several protruding posts, and the protruding posts are nested in the positioning holes.

An outer rotor motor, comprising a stator assembly, an outer rotor assembly and a rotating shaft, the outer rotor assembly is mounted and connected to the rotating shaft, and the outer rotor assembly is sleeved outside the stator assembly, characterized in that: the stator assembly is any one of the above stator assembly.

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

1) The utility model includes a stator core, insulating coil windings at the ends, a temperature controller and a wiring board. The stator core includes a yoke and a tooth, and two adjacent teeth form a wire slot, and the ends are insulated and installed. Coil windings are wound on both end faces of the stator iron core, and the wiring board is located at the end of the coil winding at one end of the stator iron core. An installation sleeve is arranged in the middle of the insulation of the end part, and the installation sleeve is opened in the middle. There is a through hole, and an insulating yoke portion extends outward from the bottom of the mounting sleeve. The edge of the insulating yoke portion protrudes with a number of insulating tooth portions at intervals along the circumferential direction. The insulating yoke portion of the end portion is insulated from the stator core. The yoke portion is matched and installed, and the insulating teeth portion of the insulating end portion is matched with the teeth portion of the stator iron core. After the coil winding is wound on the iron core, a thermostat is installed between the coil winding and the limit column, and the thermostat is fixed between the limit column and the coil winding, which effectively reduces the end height of the stator winding and avoids the It is difficult to place a fixed thermostat during the winding process;

2) Other advantages are described in detail in specific embodiments.

Description of drawings:

Fig. 1 is the perspective view of the present utility model;

Fig. 2 is the three-dimensional exploded view of the present utility model;

Fig. 3 is the partial structure schematic diagram of the present utility model;

Fig. 4 is the structural representation of the end insulation of the present utility model;

Fig. 5 is another angle structure schematic diagram of the end insulation of the present invention;

Fig. 6 is the top view of the present utility model;

FIG. 7 is a cross-sectional view of A-A in FIG. 6 .

Detailed ways:

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

Example 1:

As shown in FIG. 1 to FIG. 7 , this embodiment provides a stator assembly, including a stator core 1 , end insulation 3 coil windings 4 , a temperature controller 5 and a wiring board 6 , and the stator core 1 includes a yoke 11 and teeth 12, two adjacent teeth 12 form wire insertion slots 13, the end insulation 3 is installed on both ends of the stator core 1, the coil winding 4 is wound on the stator core 1, and the wiring board 6. The end of the coil winding 4 located at one end of the stator core 1, the end insulation 3 is provided with a mounting sleeve 32 in the middle, a through hole 31 is opened in the middle of the mounting sleeve 32, and the bottom of the mounting sleeve 32 extends outwards The insulating yoke 33 has a plurality of insulating teeth 34 protruding from the edge of the insulating yoke 33 at intervals in the circumferential direction. The insulating yoke 33 of the end insulation 3 is matched with the yoke 11 of the stator core 1 , The insulating teeth 34 of the end insulation 3 and the teeth 12 of the stator core 1 are matched and installed. After the coil winding 4 is wound on the stator core 1, a thermostat 5 is installed between the coil winding 4 and the limit column 2, and the temperature controller 5 is fixed between the limit column 2 and the coil winding 4 to effectively reduce the temperature. The high end of the stator winding also avoids the technical difficulty of placing a fixed thermostat during the winding process.

The end of the limiting column 2 is provided with a first anti-loosening structure 21, which can prevent the axial movement of the thermostat from causing the coil winding and the thermostat to loosen and cause poor contact.

The first anti-releasing structure 21 is a barb.

The mounting sleeve 32 is provided with a second anti-loosening structure 321, the wiring board 6 is provided with a central hole 60, the wiring board 6 is sleeved on the outer side of the mounting sleeve 32 through the central hole 60, and the wiring board is 6 is located on the end of the coil winding 4, and the second anti-loosening structure 321 presses on the top of the terminal block 6 and axially fixes the terminal block 6, preventing the terminal block from pressing the end cover and preventing the stator assembly from being loaded into the machine. There is a problem of rubbing noise behind the shell.

The second anti-releasing structure 321 is a barb, a plurality of barbs are arranged on the top of the installation sleeve 32, and the hook head of the barb is arranged outward.

The bottom surfaces of the insulating yoke portion 33 and the plurality of insulating tooth portions 34 are provided with communicating grooves 30 , which saves costs.

A number of protruding posts 331 are axially protruded from the bottom of the insulating yoke 33 , and positioning holes 14 corresponding to the several protruding posts 331 are provided on the end surface of the stator core 1 , and the protruding posts 331 are nested in the positioning holes 14, the structure is simple, the positioning and installation are convenient and fast, and the convex column can also be used for the insulation of the circumferential fixed end.

Embodiment 2:

This embodiment is an outer rotor motor, including a stator assembly, an outer rotor assembly and a rotating shaft, the outer rotor assembly is mounted and connected to the rotating shaft, and the outer rotor assembly is sleeved outside the stator assembly, characterized in that: the stator assembly is the first embodiment described above. The stator assembly of any one.

The above embodiments are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention shall be The replacement modes that are equivalent are all included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a stator module, includes stator core (1), end insulation (3), coil winding (4), temperature controller (5) and wiring board (6), and stator core (1) includes yoke portion (11) and tooth portion (12), and two adjacent tooth portions (12) form rule groove (13), the both ends face at stator core (1) is installed in end insulation (3), and coil winding (4) are rolled up on stator core (1), wiring board (6) are located the tip of coil winding (4) of stator core (1) one end, be provided with installation sleeve (32) in the middle of end insulation (3), through-hole (31) have been seted up in the middle of installation sleeve (32), installation sleeve (32) bottom is toward extending insulation yoke portion (33) outward, the edge of insulation yoke portion (33) has a plurality of insulation tooth portions (34) along the circumference interval protrusion, the insulation yoke portion (33) of end insulation (3) and yoke portion (11) of stator core (1) are the matching The installation, the insulating tooth portion (34) of end portion insulating (3) is the installation of matcing with tooth portion (12) of stator core (1), its characterized in that: at least one insulating tooth part (34) of the insulating tooth parts (34) is provided with a limiting column (2), and after the stator core (1) is wound with the coil winding (4), a temperature controller (5) is installed between the coil winding (4) and the limiting column (2), and the temperature controller (5) is fixed between the limiting column (2) and the coil winding (4).

2. The stator assembly according to claim 1 is characterized in that a first anti-loosening structure (21) is arranged at the end part of the limiting column (2).

3. A stator assembly according to claim 2, wherein: the first anti-loosening structure (21) is a barb.

4. A stator assembly according to claim 1, wherein: be equipped with the second on installation sleeve (32) and prevent taking off structure (321), be equipped with centre bore (60) on wiring board (6), wiring board (6) are located the tip of coil winding (4) through centre bore (60) suit at the lateral surface of installation sleeve (32) and wiring board (6), the second is prevented taking off structure (321) and is pressed on the top of wiring board (6) and axial fixity wiring board (6).

5. A stator assembly according to claim 4, wherein: the second anti-loosening structure (321) is a barb, the top of the mounting sleeve (32) is provided with a plurality of barbs, and the hook heads of the barbs are arranged outwards.

6. A stator assembly according to claim 1 or 2 or 3 or 4 or 5, wherein: communicated grooves (30) are dug on the bottom surfaces of the insulating yoke part (33) and the insulating tooth parts (34).

7. A stator assembly according to claim 6, wherein: the stator core is characterized in that the bottom of the insulating yoke portion (33) axially protrudes out of the plurality of convex columns (331), positioning holes (14) corresponding to the plurality of convex columns (331) are formed in the end face of the stator core (1), and the convex columns (331) are nested in the positioning holes (14).

8. The utility model provides an external rotor electric machine, includes stator module, external rotor subassembly and pivot, and external rotor subassembly and pivot installation are connected, and external rotor subassembly cover is in stator module outside, its characterized in that: the stator assembly is as claimed in any one of the preceding claims 1 to 7.

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