High-density high-speed fan

Abstract

The utility model discloses a high-density high-speed fan, which comprises an iron core rubber-coated bracket, a rotor assembly and a stator assembly, wherein the iron core rubber-coated bracket is arranged in a fan shell; the rotor assembly and the stator assembly are arranged on the iron core rubber-coated bracket; the iron core rubber coating support comprises a support body, a rotating shaft center hole is formed in the center of the support body, and one end of the rotor rotating shaft is arranged in the rotating shaft center hole. Each side face of the support body is provided with a winding frame, and the winding coils are arranged on the winding frames. An iron core mounting hole penetrating from the surface of the limiting plate to the center hole of the rotating shaft is also formed in the winding frame; the stator iron core is embedded and mounted in the iron core mounting hole; according to the invention, the technical effect of rapid installation of the stator assembly and the rotor assembly is achieved through the arrangement of the iron core rubber coating support structure, and compared with a traditional motor structure, the whole motor structure is optimized; and during assembly, the required assembly parts are relatively less, so that the assembly process is simple and quick, and the processing requirement of mass production can be better met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to motor structure technical field relates to a high density high speed fan. BACKGROUND

[0002] With the upgrading of hair dryer household appliances, people constantly pursue higher efficiency for enjoying high-quality life, and the small hair dryer structure with small size and large wind force is one of the main demands of the market for hair dryer products at present;

[0003] And due to the characteristics of small size, light weight and high efficiency, the design and subsequent assembly and processing of the fan are required to be higher; however, the traditional fan structure has too many assembly parts, which makes the component processing product assembly have higher requirements for the small and compact installation space, reduces the qualified rate of the product, and limits the production efficiency, so that the cost of the fan is high. INVENTION CONTENTS

[0004] In order to solve the technical problems, the utility model adopts the following technical scheme:

[0005] A high-density high-speed fan, comprising: a fan shell, an iron core rubber-coated support mounted in the fan shell, and a rotor assembly and a stator assembly mounted on the iron core rubber-coated support; wherein the rotor assembly comprises: a rotor shaft and a rotor shaft magnetic ring mounted on the rotor shaft; the stator assembly comprises: a plurality of stator cores and a plurality of winding coils; the iron core rubber-coated support comprises: a support main body in a polygonal columnar structure, a rotor shaft center hole penetrating through the support main body is formed at the center position of the support main body, one end of the rotor shaft in the rotor assembly and the rotor shaft magnetic ring mounted on the rotor shaft are both arranged in the rotor shaft center hole, the other end of the rotor shaft extends outward, and a fan impeller is mounted at the end position;

[0006] A group of winding frames are arranged on each side surface position of the support main body, each group of winding frames is arranged around the support main body, and each winding coil is arranged on the corresponding winding frame;

[0007] The winding frame is further provided with an iron core mounting hole penetrating from the surface of the limiting plate into the rotor shaft center hole, the stator core is inlaid and mounted in the iron core mounting hole and extends into the rotor shaft center hole, and the rotor shaft realizes magnetic pole cooperation.

[0008] As a further scheme of the utility model: the winding frame is in the form of a "T"-shaped frame structure, which is composed of a winding part and a limiting plate arranged at the end of the winding part, the winding coil is wound on the winding part, and the limiting plate and the side surface of the support main body form a limiting cavity for limiting the winding coil.

[0009] As a further solution of the present invention, the stator core is embedded in the core mounting hole of the core rubber-coated bracket by means of overmolding; the stator core has an "I" or "T" shaped structure, one end of the stator core is a magnetic pole portion, which is arranged in the central hole of the rotating shaft, and the magnetic pole portion has an arc-shaped structure. The magnetic pole portions of each stator core cooperate to form an annular magnetic field corresponding to the rotor shaft, thereby achieving magnetic pole coordination with the rotor shaft;

[0010] The other end of the stator core is the limiting part, which is tightly attached to the limiting plate of the winding frame to achieve the coordinated work of the stator core;

[0011] The middle section of the stator core is the connecting portion, which is arranged in the core mounting hole and connects the position between the magnetic pole portion and the limiting portion.

[0012] The beneficial effects of the present invention are as follows: In this application, the technical effect of rapid installation of the stator assembly and the rotor assembly is achieved by setting an iron core rubber-coated bracket structure. Compared with the traditional motor structure, the entire motor structure is optimized, and the overall structure is simpler and more reasonable; during assembly, relatively fewer assembly parts are required, so the assembly process is simple and quick, and can better meet the processing requirements of mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Fig. 1 It is a schematic structural diagram of the utility model.

[0014] Fig. 2 It is a structural schematic diagram of the iron core rubber-coated bracket in the utility model. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. It should be understood that this application is not limited to the example embodiments disclosed herein. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0016] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0017] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0018] This utility model provides Figs. 1-2 In an embodiment of the present invention, a high-density, high-speed fan comprises: a fan housing 1, an iron core rubber-coated bracket 5 installed in the fan housing 1, and a rotor assembly and a stator assembly installed on the iron core rubber-coated bracket 5; wherein the rotor assembly comprises: a rotor shaft 3 and a shaft magnetic ring 2 installed on the rotor shaft 3; the stator assembly comprises: a plurality of stator cores 10 and a plurality of winding coils 9;

[0019] The core rubber-coated bracket 5 includes: a bracket body 51 of a polygonal columnar structure, a shaft center hole 52 is formed at the center of the bracket body 51 and passes through the bracket body 51. One end of the rotor shaft 3 in the rotor assembly and the shaft magnetic ring 2 installed on the rotor shaft 3 are both arranged in the shaft center hole 52. The other end of the rotor shaft 3 extends outward, and the fan impeller 8 is installed at this end.

[0020] A group of winding frames 53 are provided on each side position of the bracket body 51. Each group of winding frames 53 is arranged around the bracket body 51. The winding frames 53 have a frame structure with a "T"-shaped cross-section, and are composed of a winding part 533 and a limiting plate 534 arranged at the end of the winding part 533. The winding coil 9 is wound on the winding part 533, and a limiting cavity for limiting the winding coil 9 is formed between the limiting plate 534 and the side of the bracket body 51.

[0021] The winding frame 53 is also provided with an iron core mounting hole 532 that passes through the surface of the limit plate 534 to the center hole 52 of the rotating shaft. The stator iron core 10 is embedded in the iron core mounting hole 532 and extends into the center hole 52 of the rotating shaft to achieve magnetic pole matching with the rotor shaft 3.

[0022] The stator core 10 is embedded in the core mounting hole 532 of the core rubber-coated bracket 5 by means of overmolding. The stator core 10 has an I-shaped or T-shaped structure. One end of the stator core 10 is a magnetic pole portion 102, which is disposed in the central hole 52 of the rotating shaft. The magnetic pole portion 102 has an arc-shaped structure. The magnetic pole portions 102 of each stator core 10 cooperate to form an annular magnetic field corresponding to the rotor shaft 3, thereby achieving magnetic pole coordination with the rotor shaft 3.

[0023] The other end of the stator core 10 is a limiting portion 101, which is tightly attached to the limiting plate 534 of the winding frame 53 to realize the cooperation of the stator core 10;

[0024] The middle section of the stator core 10 is a connecting portion 103, which is arranged in the core mounting hole 532 and connects the magnetic pole portion 102 and the limiting portion 101.

[0025] Further, in order to avoid the stator core 10 from shaking in the core mounting hole 532 during the operation of the fan, a set of limiting housings 4 are arranged on the core rubber-coated support 5. The limiting housings 4 are in a circular ring structure and are installed on the winding frame position of the core rubber-coated support 5, and tightly cooperate with the limiting portion 101 of the stator core 10 and the surface of the limiting plate 534 of the winding frame 53.

[0026] In order to make the limiting portion 101 and the limiting plate 534 better tightly cooperate with the limiting housing 4, the limiting portion 101 of the stator core 10 and the limiting plate 534 of the winding frame 53 are in an arc structure, and the limiting plate 534 of the winding frame 53 is formed with a limiting embedding groove 531 for the limiting portion 101 to embed in. Under this structure, each limiting portion 101 and limiting plate 534 cooperates to form a column structure that tightly cooperates with the limiting housing 4,

[0027] Further, the fan housing 1 is a double-shell structure, which is composed of a duct shell 12 and a mechanism housing 11 concentrically arranged in the duct shell 12. The duct shell 12 is formed with a plurality of connecting arms connected with the mechanism housing 11 to realize the arrangement of the mechanism housing 11 in the duct shell 12.

[0028] The duct shell 12 is formed with a duct that penetrates the upper and lower duct shells 12, and the bottom of the duct shell 12 is provided with an impeller cavity 13 for accommodating the fan impeller 8, and the mechanism housing 11 is arranged at the upper end position of the impeller cavity 13. The mechanism housing 11 is nested on the core rubber-coated support 5 to realize the technical effect of quickly installing the core rubber-coated support 5 in the fan housing 1.

[0029] Further, the shaft center hole 52 of the support body 51 is provided with a bearing room (not shown) at the upper and lower end positions, and each bearing room is provided with a fixed bearing 7. The fixed bearing 7 realizes the technical effect of quickly installing the rotor shaft 3 in the shaft center hole 52, provides structural support, and improves the overall structural support strength.

[0030] In order to avoid the axial deviation of the fixed bearing 7 in the bearing room, a positioning rib (not shown) is arranged in the bearing room to realize the axial positioning of the fixed bearing 7.

[0031] And in order to improve the overall rigidity of the rotor assembly, the pre-tightening spring 6 is arranged between the fixed bearing 7 and the rotating shaft magnetic ring 2 in the lower position of the rotating shaft center hole 52, the two ends of the pre-tightening spring 6 are respectively in contact with the fixed bearing 7 and the rotating shaft magnetic ring 2, the fixed bearing 7 is axially pre-tightened, the bearing clearance is eliminated, and the structural rigidity of the rotor is improved.

[0032] It is also important to note that the terms "first" and "second" and the like can be used herein to distinguish one element from another, but do not imply the existence of any such actual relationship or order between such elements. Also, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed or inherent to such processes, methods, articles or devices. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0033] The above description of disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-density high-speed fan comprising: A fan casing, an iron core rubber-coated bracket installed in the fan casing, and a rotor assembly and a stator assembly installed on the iron core rubber-coated bracket; wherein the rotor assembly includes: a rotor shaft and a shaft magnetic ring installed on the rotor shaft; the stator assembly includes: a plurality of stator cores and a plurality of winding coils; characterized in that: the iron core rubber-coated bracket includes: a bracket body with a polygonal columnar structure, a shaft center hole penetrating the bracket body is formed at the center of the bracket body, one end of the rotor shaft in the rotor assembly and the shaft magnetic ring installed on the rotor shaft are both arranged in the shaft center hole, and the other end of the rotor shaft extends outward, and the fan impeller is installed at this end; A set of winding frames is provided on each side of the bracket body. Each set of winding frames is arranged around the bracket body, and each winding coil is provided on the corresponding winding frame. The winding frame is also provided with an iron core mounting hole that passes through the surface of the limit plate to the center hole of the rotating shaft. The stator iron core is embedded in the iron core mounting hole and extends into the center hole of the rotating shaft to achieve magnetic pole matching with the rotor shaft.

2. A high-density high-speed fan according to claim 1, wherein The winding frame has a "T"-shaped cross-section and consists of a winding part and a limiting plate arranged at the end of the winding part. The winding coil is wound on the winding part, and a limiting cavity is formed between the limiting plate and the side surface of the bracket body to achieve the limiting of the winding coil.

3. A high-density high-speed fan according to claim 2, wherein The stator core is embedded into the core mounting hole of the core bracket by overmolding. The stator core has an I or T-shaped structure. One end of the stator core is a magnetic pole, which is arranged in the center hole of the shaft. The magnetic pole is an arc-shaped structure. The magnetic poles of each stator core cooperate to form an annular magnetic field corresponding to the rotor shaft, achieving magnetic pole coordination with the rotor shaft. The other end of the stator core is the limiting part, which is tightly attached to the limiting plate of the winding frame to achieve the coordinated work of the stator core; The middle section of the stator core is the connecting portion, which is arranged in the core mounting hole and connects the position between the magnetic pole portion and the limiting portion.

4. A high-density high-speed fan according to claim 3, wherein A set of limiting shells is also provided on the iron core rubber-coated bracket. The limiting shells are annular in structure and are installed on the winding frame position of the iron core rubber-coated bracket. They fit tightly with the limiting part of the stator iron core and the limiting plate surface of the winding frame.

5. A high-density high-speed fan as claimed in claim 4, wherein The limiting portion of the stator core and the limiting plate of the winding frame both adopt an arc structure, and the limiting plate of the winding frame is formed with a limiting embedding groove for the limiting portion to be embedded.

6. A high-density high-speed fan as claimed in claim 4, wherein, The fan housing is a double-shell structure, consisting of an air duct housing and a mechanism housing concentrically arranged inside the air duct housing; An air duct is formed in the air duct shell, which passes through the upper and lower air duct shells, and an impeller cavity for accommodating the fan impeller is provided at the bottom of the air duct shell, and the mechanism shell is arranged at the upper end of the impeller cavity; the mechanism shell is nested on the iron core rubber-coated bracket, realizing the technical effect of rapid installation of the iron core rubber-coated bracket in the fan shell.

7. The high-density high-speed fan of claim 1, wherein The upper and lower ends of the central hole of the rotating shaft of the bracket body are set as bearing chambers, and each bearing chamber is installed with a group of fixed bearings for fixing the rotating shaft of the rotor.

8. A high-density high-speed fan as claimed in claim 7, wherein The bearing chamber is also provided with positioning ribs for axially positioning the fixed bearing.

9. A high-density high-speed fan as claimed in claim 7, wherein, The pre-tightening spring is arranged between the fixed bearing at the lower position in the center hole of the rotating shaft and the rotating shaft magnetic ring, and two ends of the pre-tightening spring are respectively in abutment with the fixed bearing and the rotating shaft magnetic ring.

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