TWM611919U - Fan motor structure - Google Patents

Abstract

This creation relates to a fan motor structure, which mainly includes a fan body and a rotor hub. A stator seat is arranged inside the fan body, and the stator seat ring is provided with six support rods around which coils are arranged. The outer end surface of the support rod is provided with silicon steel sheets, and the rotor hub is provided with blades on the outside and a dust-proof ring inside, and four magnetic conductive parts are provided at the silicon steel sheets corresponding to the support rod. The two ends of the piece are respectively provided with lead angles to form a relaxation space between two adjacent magnetic conductive parts; thereby, through the wire slots of the stator base, the magnetic poles [6 slots and 4 poles] are configured to match the relaxation space of the magnetic conductive parts The design can effectively reduce the torque, and then achieve the effect of reducing noise and vibration.

Description

Fan motor structure

This creation is related to a fan motor structure, especially a fan motor structure that can effectively reduce the torque, noise and vibration effects for its creators.

According to, all kinds of fans currently use a fan motor as their power source. The fan motor is composed of a stator and a rotor. The stator is energized to drive the rotor and one of the front impellers to rotate. The design of the fan motor used in driving the impeller is different in different rotation speeds and requirements.

For example, the Republic of China New Patent Announcement No. 513011 "Small Brushless DC Fan Motor" patent includes: a base with a shaft tube extending from the bottom and a supporting plate in the shaft tube; a stator device with a setting The circuit board on the base, a stator frame arranged on the circuit board, and a coil wound on the stator frame, and a shaft hole is formed on the stator frame; a fan wheel has a set on the aforementioned stator frame The peripheral hub and most of the blades formed on the outer edge of the hub; and a rotating shaft made of magnetically conductive material and set in the shaft hole of the stator frame, and one end of the rotating shaft is pinched on the base The other end of the supporting plate in the shaft tube passes through a bearing and is connected to the hub of the fan wheel; if the coil on the stator frame is energized and excited to generate a magnetic field, the rotating shaft can be induced to rotate by the magnetic field. And drive the fan wheel to rotate.

Or, in the Patent M310526 "Improvement of Motor Stator Structure for Household Fans", the motor stator is composed of a plurality of stator silicon steel sheets laminated and solidified. The length and width of the stator silicon steel sheets are 78±1mm. A certain sub-shaft hole is opened in the center of the stator silicon steel sheet. The diameter of the stator shaft hole is 48±1mm. A plurality of wire slots are recessed around the stator shaft hole, and a coil group is wound in the wire slots.

Although the current motor stator structure has been improved, it does not mean that all companies are satisfied with the status quo. Most companies are still working hard to reduce temperature rise and power loss. In the aforementioned motor stator structure, without changing the length and width, the hole diameter of the perforation (stator shaft hole) in its center is increased, and the area of the core slot (line slot) around the perforation (stator shaft hole) is relatively reduced, so that the coil It is not easy for the group to wind in the slot; on the other hand, because the length and width of the motor stator have an impact on the heat dissipation efficiency, the low heat dissipation efficiency causes the temperature to rise, and at the same time increases the lack of power consumption.

Today, the creators are in the spirit of striving for perfection, with years of rich experience in design, development and actual production in the related industry, and once again provide a fan motor structure in order to achieve better practical value.

The main purpose of this creation is to provide a fan motor structure, especially a fan motor structure that can effectively reduce the torque, reduce noise and vibration.

The main purpose and effect of the fan motor structure of this creation are achieved by the following specific technical means:

It mainly includes a fan body and a rotor hub, wherein a stator seat is arranged inside the fan body, the stator seat ring is provided with six supporting rods with coils, and a silicon steel sheet is provided on the outer end surface of the supporting rod , And the rotor hub is provided with blades on the outside and a dust-proof ring inside, and four magnetic conductive parts are provided at the silicon steel sheet corresponding to the support rod. The two ends of the magnetic conductive parts are respectively provided with lead angles to Let a relaxation space be formed between two adjacent magnetic conductive parts; thereby, the design of the relaxation space through the slot and magnetic pole [6 slots 4 poles] configuration of the stator base and the relaxation space of the magnetic conductive parts can effectively reduce the torque, and then To achieve the effect of reducing noise and vibration.

In the preferred embodiment of the fan motor structure of the present invention, the dust-proof ring adopts a yoke, and the yoke can not only achieve effective dust-proof performance, but also enhance the attracting force of the electromagnetic coil and improve the efficiency of the electromagnet.

In the preferred embodiment of the fan motor structure of the present invention, the coils wound on the six support rods are wound in parallel, which can effectively reduce the impedance, thereby reducing the temperature rise, and the manufacturing process is relatively easy.

In order to have a more complete and clear disclosure of the technical content, the purpose of the creation and the effects achieved in this creation, we will explain them in detail below, and please refer to the figures and figure numbers disclosed together:

First of all, please refer to the first to third pictures. The fan motor structure of this creation is shown in the three-dimensional decomposition, combination and cross-sectional schematic diagram. It mainly includes:

A fan body (1) with an accommodating space (11) inside, a circuit board (12) and a stator base (13) are arranged in the center of the accommodating space (11), and the center of the stator base (13) An assembly hole (131) is provided, and six support rods (132) around which coils (A) are wound are arranged around the periphery, and a silicon steel sheet (133) is provided on the outer end surface of the support rod (132);

A rotor hub (2) with a plurality of blades (21) on the outside, and a shaft (22) at the center of the inside, the shaft (22) corresponding to the assembly hole embedded in the fan body (1) (131), a dust-proof ring (23) is arranged on the inner edge of the rotor hub (2), and four magnetic conductive parts (24) are arranged on the silicon steel sheet (133) corresponding to the support rod (132). ), the two ends of the magnetic conductive member (24) are respectively provided with lead angles (241), so that a relaxation space (3) is formed between two adjacent magnetic conductive members (24).

Please refer to Figures 1 to 4, when in use and assembly, the accommodating space (11) of the fan body (1) is for the rotor hub (2) to be embedded and assembled in the accommodating space ( 11) A circuit board (12) and a stator base (13) are installed in the center, and coils (A) are respectively wound on the six support rods (132) of the stator base (13). The parallel winding method is adopted. The method can effectively reduce the impedance, thereby reducing the temperature rise, and the manufacturing process is easier; then, a silicon steel sheet (133) is provided on the outer end surface of the support rod (132). The rotor hub (2) is provided with a plurality of blades (21) on the outside, and a dust-proof ring (23) is arranged on the inner edge of the rotor hub (2). Furthermore, the dust-proof ring (23) is selected from a yoke. In addition to achieving effective dust resistance, the yoke can also enhance the attraction force of the electromagnetic coil and improve the efficiency of the electromagnet; and the inner rotor hub (2) corresponds to the silicon steel sheet (133) of the six support rods (132) There are four magnetic conductive parts (24) [select magnets] in the ring, so that the four magnetic conductive parts (24) form 4 magnetic poles, and the lead angle (241) between two adjacent magnetic conductive parts (24) can be A recessed relaxation space (3) is formed; finally, the assembly hole (131) of the fan body (1) is embedded in the assembly hole (131) of the fan body (1) through the shaft (22) inside the rotor hub (2) to complete the assembly.

When the fan motor of this creation is energized, through the slot of the stator base (13), the configuration of the magnetic pole [6 slots 4 poles] and the design of the relaxation space (3) of the magnetic conductor (24), the rotor hub (2) is rotated Process, can effectively reduce the torque and reduce the effect of noise and vibration.

The foregoing embodiments or drawings do not limit the structure of this creation, and any appropriate changes or modifications by those with ordinary knowledge in the technical field should be regarded as not departing from the scope of the patent of this creation.

Based on the above, the composition and implementation description of the authoring system shows that, compared with the existing structure, this authoring has the following advantages:

1. The fan motor structure of this creation can effectively reduce the torque and reduce the noise and vibration through the design of the stator base's wire slots, magnetic poles [6 slots and 4 poles] configuration and the relaxation space of the magnetic conductive parts.

2. The fan motor structure of this creation, through the use of the design of the yoke, can not only achieve effective dust resistance, but also enhance the attraction force of the electromagnetic coil and improve the efficiency of the electromagnet.

3. The fan motor structure of this creation can optimize the wiring through the slot of the stator base and the design of the magnetic pole [6 slots 4 poles] head, increase the number of coils and improve efficiency.

4. The fan motor structure of this creation can effectively reduce the impedance by using the parallel winding method, thereby reducing the temperature rise, and achieving the effect of easy manufacturing process.

In summary, this creative embodiment can indeed achieve the expected use effect, and the specific structure disclosed by it has not been seen in similar products, nor has it been disclosed before the application. It has fully complied with the provisions and requirements of the Patent Law. , Yan submits an application for a new type patent in accordance with the law, and asks for favors for examination and grants a patent.

1: Fan body

11: accommodating space

12: Circuit board

13: Stator seat

131: Assembly hole

132: Support rod

133: Silicon steel sheet

2: rotor hub

21: Blade

22: shaft

23: Dust ring

24: Magnetic conductive parts

241: Lead Angle

3: Relaxation space

A: Coil

Figure 1: The three-dimensional exploded schematic diagram of this creation.

Figure 2: A schematic diagram of the three-dimensional combination of this creation.

Figure 3: A schematic cross-sectional view of the creative combination state.

Figure 4: The top view of the creative combination state.

1: Fan body

11: accommodating space

12: Circuit board

13: Stator seat

131: Assembly hole

132: Support rod

133: Silicon steel sheet

2: rotor hub

21: Blade

22: shaft

23: Dust ring

24: Magnetic conductive parts

241: Lead Angle

A: Coil

Claims (2)

A fan motor structure, which mainly includes: A fan body with an accommodating space inside, a circuit board and a stator base are arranged in the center of the accommodating space, an assembly hole is arranged in the center of the stator base, and six supporting rods with coils around the periphery are arranged , And a silicon steel sheet is provided on the outer end surface of the support rod; A rotor hub is correspondingly embedded in the accommodating space of the fan body, a plurality of blades are arranged on the outside of the rotor hub, and a shaft is arranged in the center of the inner part, and the shaft is correspondingly embedded in the fan body The assembly hole of the rotor hub is provided with a dust-proof ring on the inner edge of the rotor hub, and four magnetic conductive parts are ringed at the silicon steel sheet corresponding to the supporting rod. The two ends of the magnetic conductive parts are respectively provided with lead angles , So as to form a relaxation space between two adjacent magnetic conductive parts. According to the fan motor structure of claim 1, wherein a yoke that can reinforce the electromagnetic coil is selected as the dust-proof ring.

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