CN220896404U - Outer rotor high-speed blower motor adopting novel shaft structure - Google Patents

Abstract

The utility model provides an outer rotor high-speed blower motor adopting a novel shaft structure, which comprises a rotor assembly, a stator assembly, a control device and a duct shell, wherein the stator assembly is arranged on the inner side of the rotor assembly, a rotating shaft is fixedly arranged at the center of the rotor assembly, the rotating shaft is an optical axis, a limiting piece is arranged on the rotating shaft to prevent axial movement of the shaft, the technical problems of low production efficiency and high production cost caused by the fact that the axial movement of the shaft is prevented in the prior art by adopting a dispensing mode or a mode of matching a snap spring with a snap spring groove are solved, the production efficiency is improved, the production cost is reduced, a groove on the shaft is not required by adopting the optical axis, the production procedure is reduced, and the pressing depth of a plum blossom meson is used as the limiting piece to control the bearing pretightening force.

Description

Outer rotor high-speed blower motor adopting novel shaft structure

Technical Field

The utility model relates to the field of high-speed blower motors, in particular to an outer rotor high-speed blower motor adopting a novel shaft structure.

Background

The motor is needed to be used for the blowing device and the dust collection device such as an electric hair drier, a bladeless electric fan, a negative pressure dust collector, a hand drier, bathroom drying and the like, and when the traditional high-speed blowing motor adopts an inner rotor structure, the matching part of the ball bearing inner ring and the shaft is fixed through dispensing to prevent the axial movement of the shaft; when the motor adopts an outer rotor structure, the matching part of the ball bearing inner ring and the shaft prevents the axial movement of the shaft by arranging a clamping spring on the shaft and arranging a clamping spring on the shaft; above-mentioned two tradition prevent the mode of axial float of axle, the glue is glued the mode and is glued the back glue and just solid needs latency to lead to production efficiency low, and dress clamping spring mode no matter adopts the manual work mode or adopts equipment to install and all can lead to manufacturing cost's increase.

Disclosure of utility model

In order to overcome the defects and shortcomings of the prior art, the utility model provides an outer rotor high-speed blower motor adopting a novel shaft structure, which solves the technical problems of low production efficiency and high production cost caused by the traditional mode of preventing axial movement of a shaft in the prior art.

The utility model realizes the aim through the following technical scheme: the utility model provides an adopt novel axle construction's high-speed hair-dryer motor of external rotor, includes rotor subassembly, stator module and duct casing, stator module sets up rotor subassembly's inboard, rotor subassembly's the fixed axis of rotation that is equipped with in center, the axis of rotation is the optical axis, there is the locating part in the axis of rotation.

Preferably, the motor further comprises a control device, wherein the stator assembly is fixedly connected with one end of the duct casing, the control device is installed at the other end of the duct casing, and the duct casing is provided with an assembly hole for the rotating shaft to pass through.

Preferably, the duct casing comprises an inner casing and an outer casing, the inner casing is coaxial with the outer casing, and a diversion mechanism is arranged between the inner casing and the outer casing.

Preferably, the inner shell comprises a first inner shell and a second inner shell, wherein the first inner shell and the second inner shell are separated by a separation plate, and a plurality of through holes are formed in the separation plate; the first inner shell is arranged at the fixed connection part of the stator assembly and one end of the duct shell, the control device is arranged at one end of the second inner shell, and the diversion mechanism is arranged on the periphery of the control device.

Preferably, the control device is fixedly connected with the second inner shell through a buckle structure, and an interface is arranged on the control device and used for connecting the lead wires of the stator assembly.

Preferably, the rotor assembly includes a rotor magnet and a rotor housing.

Preferably, the limiting piece is a plum blossom meson.

Preferably, the fan blade is arranged in the first inner shell.

Compared with the prior art, the utility model has the beneficial effects that:

According to the utility model, the rotating shaft with a smooth surface is adopted between the stator assembly and the rotor assembly, and the axial movement of the shaft is prevented by adopting a mode of arranging the limiting piece on the rotating shaft, so that the technical problems of low production efficiency and high production cost caused by the fact that the axial movement of the shaft is prevented by adopting a mode of dispensing or matching the snap spring with the snap spring groove in the prior art are solved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 shows an explosion diagram of an outer rotor high-speed blower motor adopting a novel shaft structure.

Fig. 2 shows a rotational shaft limit assembly diagram employing a novel embodiment of the present utility model.

Reference numerals: 1-a rotor assembly; 11-rotor magnet; 12-a rotor housing; a 2-stator assembly; 3-a control device; 4-duct housing; 41-an inner shell; 411-a first inner shell; 412-a second inner housing; 42-a housing; 5-a flow guiding mechanism; 6-rotating shaft; 7-limiting pieces; 8-interface.

Detailed Description

The present utility model will be further described with reference to the drawings and detailed description, wherein the described embodiments are only some, but not all, of the embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 2, an external rotor high-speed blower motor adopting a novel shaft structure comprises a rotor assembly 1, a stator assembly 2, a control device 3 and a duct casing 4, wherein the stator assembly 2 is arranged on the inner side of the rotor assembly 1, the rotor assembly 1 comprises a rotor magnet 11 and a rotor shell 12, a rotating shaft 6 is fixedly arranged at the center of the rotor assembly 1, the rotating shaft 6 is an optical axis, a limiting piece 7 is arranged on the rotating shaft 6, and the limiting piece 7 is a plum blossom meson.

Further, the stator assembly 2 is fixedly connected with one end of the bypass casing 4, the control device 3 is installed at the other end of the bypass casing 4, the bypass casing 4 is provided with an assembly hole for the rotation shaft 6 to pass through, the bypass casing 4 comprises an inner casing 41 and an outer casing 42, the inner casing 41 is coaxial with the outer casing, a flow guiding mechanism 5 is arranged between the inner casing 41 and the outer casing 42, the flow guiding mechanism 5 is a stator blade, the inner casing 41 comprises a first inner casing 411 and a second inner casing 412, the first inner casing 411 and the second inner casing 412 are separated by a separation plate, and a plurality of through holes are formed in the separation plate; the first inner casing 411 is disposed at a fixed connection position between the stator assembly 2 and one end of the duct casing 4, the control device 3 is mounted at one end of the second inner casing 412, and the diversion mechanism is disposed around the control device 3.

Further, the control device 3 is fixedly connected with the second inner housing 412 through a fastening structure, and an interface 8 is provided on the control device 3 for connecting with a lead wire of the stator assembly 2.

Further, the fan blade is arranged in the first inner shell.

The foregoing list is only illustrative of specific embodiments of the utility model. It is obvious that the utility model is not limited to the above embodiments, but that many similar modifications are possible, all modifications which can be directly derived or suggested to a person skilled in the art from the disclosure of the utility model are to be considered as the scope of the utility model as claimed.

Claims (5)

1. The utility model provides an adopt novel shaft construction's external rotor high-speed hair-dryer motor which characterized in that, including rotor subassembly (1), stator subassembly (2) and duct casing (4), stator subassembly (2) set up the inboard of rotor subassembly (1), the fixed axis of rotation (6) that is equipped with in center of rotor subassembly (1), axis of rotation (6) are the optical axis, there is locating part (7) on axis of rotation (6);

The stator assembly (2) is fixedly connected with one end of the duct casing (4), the control device (3) is arranged at the other end of the duct casing (4), and the duct casing (4) is provided with an assembly hole for the rotating shaft (6) to pass through;

The bypass casing (4) comprises an inner casing (41) and an outer casing (42), wherein the inner casing (41) and the outer casing (42) are coaxial, and a flow guide mechanism (5) is arranged between the inner casing (41) and the outer casing (42);

The inner shell (41) comprises a first inner shell (411) and a second inner shell (412), wherein the first inner shell (411) and the second inner shell (412) are separated by a separation plate, and a plurality of through holes are formed in the separation plate; the first inner shell (411) is arranged at the fixed connection part of the stator assembly (2) and one end of the duct casing (4), the control device (3) is arranged at one end of the second inner shell (412), and the diversion mechanism (5) is arranged at the periphery of the control device (3).

2. The outer rotor high-speed blower motor adopting the novel shaft structure according to claim 1, wherein the control device (3) is fixedly connected with the second inner shell (412) through a fastening structure, and an interface (8) is arranged on the control device (3) and is used for connecting leads of the stator assembly (2).

3. An external rotor high speed blower motor employing a novel shaft structure as in claim 1, wherein the rotor assembly (1) comprises a rotor magnet (11) and a rotor housing (12).

4. The outer rotor high-speed blower motor adopting the novel shaft structure according to claim 1, wherein the limiting piece (7) is a plum blossom meson.

5. The outer rotor high speed blower motor with novel shaft structure of claim 1, further comprising a fan blade, wherein the fan blade is disposed in the first inner housing (411).