CN210074898U

CN210074898U - Fan motor

Info

Publication number: CN210074898U
Application number: CN201920674278.5U
Authority: CN
Inventors: 欧巨来
Original assignee: Shunde Foshan Jian Peng Industrial Co Ltd
Current assignee: Shunde Foshan Jian Peng Industrial Co Ltd
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-02-14
Anticipated expiration: 2029-05-10

Abstract

The utility model discloses a fan motor, including rotor shell, pivot, stator module, stator bearing and screw, be provided with the magnetic ring in the rotor shell, the stator module cover is located in the magnetic ring, the rotor shell upper end is provided with the opening, the stator bearing sets up the opening, the stator bearing passes through the screw with stator module can dismantle the connection, the stator bearing downwardly extending extends and extends a cylinder, the stator module cover is located the cylinder outside, the centre of a circle position of cylinder has been seted up and has been link up the through-hole of cylinder, pivot one end is passed the through-hole with the rotor shell rigid coupling, the pivot with rotor shell link end is provided with the layer of moulding plastics, this fan motor easy maintenance, and non-deformable when receiving the impact.

Description

Fan motor

Technical Field

The utility model relates to a fan motor technical field especially relates to a fan motor.

Background

A dc motor is an electric motor that converts dc electrical energy into mechanical energy. The speed-regulating device is widely applied to electric traction due to good speed-regulating performance.

The stator supporting seat and the stator assembly of the existing outward rotating motor are combined together in one step through interference fit, the stator supporting seat needs to be broken and disassembled when the stator supporting seat and the stator assembly are separated, maintenance is inconvenient, the rotor shell and the rotating shaft are in mutual interference compression joint, deformation and stress imbalance when compression joint is difficult to control, and deformation is large when impact is applied.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a fan motor, which is convenient to maintain and is not easy to deform when impacted.

The purpose of the utility model is realized by adopting the following technical scheme:

a fan motor comprises a rotor shell, a rotating shaft, a stator assembly, a stator supporting seat and screws, wherein a magnetic ring is arranged in the rotor shell, the stator assembly is sleeved in the magnetic ring, an opening is formed in the upper end of the rotor shell, the stator supporting seat is arranged at the opening, the stator supporting seat is detachably connected with the stator assembly through the screws, the stator supporting seat extends downwards to form a cylinder, the stator assembly is sleeved outside the cylinder, a through hole penetrating through the cylinder is formed in the circle center of the cylinder, one end of the rotating shaft penetrates through the through hole to be fixedly connected with the rotor shell, and an injection molding layer is arranged at the connecting end of the rotating shaft and the rotor shell.

Furthermore, a first mounting groove is formed in the upper end face of the stator supporting seat, the through hole is formed in the bottom end of the first mounting groove, and a first bearing rotatably connected with the rotating shaft is arranged in the first mounting groove.

The stator bearing seat is provided with a first mounting groove, and the stator bearing seat is provided with a first bearing.

Further, a shaft clamp is arranged at the upper end of the first bearing, the shaft clamp is sleeved on the rotating shaft, and a clamping groove matched with the shaft clamp is formed in the corresponding position of the rotating shaft and the shaft clamp.

Furthermore, a second mounting groove is formed in the lower end face of the column body, a second bearing is arranged in the second mounting groove and rotatably connected with the rotating shaft, and the lower end face of the second bearing is suitable for being abutted to the injection molding layer.

Further, the stator assembly comprises a stator sleeved on the rotating shaft, an upper bobbin arranged at the upper end of the stator, a lower bobbin arranged at the lower end of the stator, and a winding coil sleeved on the outer side of the stator.

Furthermore, a PCB is arranged on the wire feeding frame, a lead is arranged on the PCB, and the PCB is connected with an external circuit board through the lead.

Compared with the prior art, the beneficial effects of the utility model reside in that:

this application is connected stator module and stator bearing through utilizing the screw, rather than adopting interference fit's mode to be connected stator module and stator bearing, stator module and stator bearing separation when the person of facilitating the use maintains, need not to adopt broken mode of tearing open with stator module and stator bearing separation, the person of facilitating the use is when stator module or stator bearing damage, take out the damage part and change, furthermore, it moulds plastics the layer to set up at pivot and rotor shell connection position, through utilizing the process of moulding plastics to make the plastics of molten condition pack or the hookup location of local parcel pivot and rotor shell, can be under guaranteeing sufficient joint strength, provide sufficient connection elasticity, reduce the probability that receives the impact deformation.

Drawings

Fig. 1 is a schematic structural diagram of a fan motor according to the present invention;

fig. 2 is a sectional view of a fan motor according to the present invention;

fig. 3 is an exploded view of a fan motor according to the present invention.

In the figure: 501. a stator support base; 5011. a cylinder; 5012. a first mounting groove; 5013. a second mounting groove; 502. a stator; 503. a wire feeding frame; 504. a wire laying frame; 505. a winding coil; 507. a lead wire; 508. a screw; 509. a rotating shaft; 510. a rotor case; 511. a magnetic ring; 512. a first bearing; 513. a second bearing; 514. a bearing pressure plate; 515. and (5) injection molding the layer.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

As shown in fig. 1-3, a fan motor includes a rotor housing 510, a rotating shaft 509, a stator assembly 502, a stator support 501 and screws 508, the rotor housing 510 is provided with a magnetic ring 511, the stator assembly 502 is sleeved in the magnetic ring 511, the upper end of the rotor housing 510 is provided with an opening, the stator support 501 is provided with the opening, the stator support 501 is detachably connected with the stator assembly 502 through the screws 508, the stator support 501 extends downward to form a column 5011, the stator assembly 502 is sleeved outside the column 5011, a through hole penetrating through the column 5011 is formed at a center of the column 5011, one end of the rotating shaft 509 passes through the through hole to be fixedly connected with the rotor housing 510, and an injection layer 515 is disposed at a connection end of.

The stator assembly 502 includes a stator 502 sleeved on a rotating shaft 509, an upper bobbin 503 disposed at an upper end of the stator 502, a lower bobbin 504 disposed at a lower end of the stator 502, and a winding coil 505 sleeved outside the stator 502.

This application is connected stator module and stator bearing 501 through utilizing screw 508, rather than adopting interference fit's mode to be connected stator module and stator bearing 501, stator module and stator bearing 501 separation when the convenience of customers maintains, need not to adopt broken mode of tearing open with stator module and stator bearing 501 separation, convenience of customers takes out the damage part and changes when stator module or stator bearing 501 damage, furthermore, it moulds plastics layer 515 to set up at pivot 509 and rotor shell 510 junction, through the connected position that utilizes the plastics process that moulds plastics to make the plastics of molten condition fill or local parcel pivot 509 and rotor shell 510, can be under guaranteeing sufficient joint strength, provide sufficient connection elasticity, reduce the probability that receives the impact deformation.

Specifically, the upper end surface of the stator supporting seat 501 is provided with a first mounting groove 5012, the through hole is formed at the bottom end of the first mounting groove 5012, and a first bearing 512 rotatably connected with the rotating shaft 509 is arranged in the first mounting groove 5012. Through the arrangement of the first bearing 512, the stability of the rotating shaft 509 during rotation is improved, and the deflection of the rotating shaft 509 during rotation is avoided.

Specifically, the fan motor further includes a bearing pressing plate 514 disposed at an opening of the first mounting groove 5012, the bearing pressing plate 514 is adapted to abut against the first bearing 512, the bearing pressing plate 514 is connected to the stator support base 501 through a screw 508, and the disposed bearing pressing plate 514 can be matched with the first mounting groove 5012 to limit displacement of the first bearing 512, so as to reduce vibration of the first bearing 512 when the rotating shaft 509 rotates, improve stability when the rotating shaft 509 rotates, and effectively avoid a probability that the first bearing 512 is separated from the first mounting groove 5012.

Specifically, the upper end of the first bearing 512 is provided with a shaft clamp, the shaft clamp is sleeved on the rotating shaft 509, and a clamping groove matched with the shaft clamp is formed in a position, corresponding to the shaft clamp, of the rotating shaft 509, so that the shaft clamp can be embedded into the rotating shaft 509 to be matched with the rotor shell 510, and the rotating shaft 509 is prevented from being separated from the stator supporting seat 501 in the rotating process.

Specifically, a second mounting groove 5013 is formed in a lower end surface of the cylinder 5011, a second bearing 513 rotatably connected to the rotating shaft 509 is disposed in the second mounting groove 5013, the lower end surface of the second bearing 513 is adapted to abut against the injection molding layer 515, and the second bearing 513 is mounted on the lower end surface of the cylinder 5011 to be matched with the first bearing 512 disposed on the upper end surface of the stator support base 501, so as to improve the stability of the rotating shaft 509 during rotation.

Specifically, be equipped with the PCB board on the line frame 503, be provided with lead wire 507 on the PCB board, the PCB board passes through lead wire 507 and is connected with external circuit board, and the lead wire 507 person of facilitating the use who sets up the circuit board outside fan motor, avoids fan motor during operation to produce high temperature, influences the use of circuit board, and the processing of being convenient for simultaneously has reduced manufacturing cost.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. A fan motor characterized by: the rotor comprises a rotor shell, a rotating shaft, a stator component, a stator supporting seat and screws, wherein a magnetic ring is arranged in the rotor shell, the stator component is sleeved in the magnetic ring, an opening is formed in the upper end of the rotor shell, the stator supporting seat is arranged at the opening, the stator supporting seat is detachably connected with the stator component through the screws, a cylinder extends downwards from the stator supporting seat, the stator component is sleeved outside the cylinder, a through hole penetrating through the cylinder is formed in the position of the center of the cylinder, one end of the rotating shaft penetrates through the through hole to be fixedly connected with the rotor shell, and an injection molding layer is arranged at the connecting end of the rotating shaft and the rotor shell.

2. A fan motor as claimed in claim 1, wherein: the upper end face of the stator supporting seat is provided with a first mounting groove, the through hole is formed in the bottom end of the first mounting groove, and a first bearing rotatably connected with the rotating shaft is arranged in the first mounting groove.

3. A fan motor as claimed in claim 2, wherein: the stator bearing seat is characterized by further comprising a bearing pressing plate arranged at the opening of the first mounting groove, the bearing pressing plate is suitable for being abutted to the first bearing, and the bearing pressing plate is connected with the stator bearing seat through the screw.

4. A fan motor as claimed in claim 2, wherein: the upper end of the first bearing is provided with a shaft clamp, the shaft clamp is sleeved on the rotating shaft, and a clamping groove matched with the shaft clamp is formed in the corresponding position of the rotating shaft and the shaft clamp.

5. A fan motor as claimed in claim 1, wherein: the lower end face of the column body is provided with a second mounting groove, a second bearing rotatably connected with the rotating shaft is arranged in the second mounting groove, and the lower end face of the second bearing is suitable for being abutted to the injection molding layer.

6. A fan motor as claimed in claim 1, wherein: the stator assembly comprises a stator sleeved on the rotating shaft, an upper wire frame arranged at the upper end of the stator, a lower wire frame arranged at the lower end of the stator and a winding coil sleeved outside the stator.

7. A fan motor according to claim 6, wherein: the PCB is arranged on the upper wire rack, a lead is arranged on the PCB, and the PCB is connected with an external circuit board through the lead.