CN219576720U

CN219576720U - Efficient heat dissipation fan

Info

Publication number: CN219576720U
Application number: CN202320298005.1U
Authority: CN
Inventors: 郑长桥
Original assignee: Guangtai Motor Wujiang Co ltd
Current assignee: Guangtai Motor Wujiang Co ltd
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-08-22
Anticipated expiration: 2033-02-23

Abstract

The utility model discloses a high-efficiency heat radiation fan, which belongs to the technical field of heat radiation fans, and comprises a stator winding and a magnetic ring which is arranged at the inner side of the stator winding and is mutually induced with the stator winding; the stator winding comprises silicon steel sheets with an even number of inward open slots, magnetic conduction heads formed between adjacent open slots and circuits wound on the magnetic conduction heads in sequence; the magnetic conduction head comprises a first magnetic conduction head, a second magnetic conduction head, a third magnetic conduction head, a fourth magnetic conduction head, a fifth magnetic conduction head and a sixth magnetic conduction head which are arranged in a clockwise annular row, and the circuit is sequentially wound around the first magnetic conduction head, the fourth magnetic conduction head, the second magnetic conduction head, the fifth magnetic conduction head, the third magnetic conduction head and the sixth magnetic conduction head and then connected end to end. This scheme reduces the fan consumption, realizes cooling fan's fast turn, high-efficient cooling.

Description

Efficient heat dissipation fan

Technical Field

The utility model belongs to the technical field of cooling fans, and particularly relates to a high-efficiency cooling fan.

Background

The heat radiation fan is a device assembled in the heat radiation fan, which converts electric energy into mechanical energy and mainly comprises a stator winding and a magnetic ring, the magnetic ring is rotated under the action of a magnetic field after the power is on, and the fan blades are linked with the magnetic ring, so that the air flow is driven to flow and cool.

In the prior art, the magnetic ring of the heat radiation fan is fixed on the inner wall of the fan blade, and the stator winding is arranged in the magnetic ring, so that the silicon steel sheets forming the stator winding are outwards provided with the winding grooves, and after winding, the direction of a reversing magnetic field is outwards, and the magnetic field is switched and reversed with an external magnetic ring, so that the fan has low rotating speed and low heat radiation performance; the heat dissipation fan equipped with the heat dissipation fan is applied to various industries, taking the heat dissipation application of the server as an example, along with the continuous improvement of the power of the server, the heat dissipation performance requirement of the heat dissipation fan is improved, in order to improve the heat dissipation, the rotation speed of the heat dissipation fan is generally required to be improved, the rotation speed is improved, the power consumption of the fan is increased, the self heat productivity of the fan is increased, the heat dissipation performance is affected, and the high rotation speed and the low power consumption of the fan cannot be achieved.

Disclosure of Invention

In order to solve the technical problems, the technical scheme of the utility model is as follows: a high-efficiency heat dissipation fan comprises a stator winding and a magnetic ring which is arranged on the inner side of the stator winding and is mutually induced with the stator winding;

the stator winding comprises silicon steel sheets with an even number of inward open slots, magnetic conduction heads formed between adjacent open slots and circuits wound on the magnetic conduction heads in sequence;

the magnetic conduction head comprises a first magnetic conduction head, a second magnetic conduction head, a third magnetic conduction head, a fourth magnetic conduction head, a fifth magnetic conduction head and a sixth magnetic conduction head which are arranged in a clockwise annular row, and the circuit is sequentially wound around the first magnetic conduction head, the fourth magnetic conduction head, the second magnetic conduction head, the fifth magnetic conduction head, the third magnetic conduction head and the sixth magnetic conduction head and then connected end to end.

Specifically, the silicon steel sheet is provided with a positioning notch.

Specifically, the positioning notch is positioned on the outer wall of the silicon steel sheet between the first magnetic conduction head and the second magnetic conduction head.

Specifically, the stator winding is fixed on the fan frame, and the magnetic ring is fixed on the fan blade and linked with the fan blade.

Specifically, the fan blade is provided with a shaft core seat coaxial with the fan blade and a shaft core fixed on the shaft core seat, the fan frame comprises a frame body and a fan frame base, the fan frame base is provided with a copper sleeve, and the shaft core is inserted into the copper sleeve and is connected in a rotating manner through a bearing.

Specifically, the magnetic ring is arranged outside the copper sleeve.

Specifically, a glue adding groove is formed between the magnetic ring and the shaft core seat.

Specifically, the stator winding further comprises an upper piece arranged at the upper end of the silicon steel sheet and a lower piece arranged at the lower end of the silicon steel sheet.

Specifically, the fan frame base is provided with a step for tightly fitting the inner diameter of the stator winding.

Compared with the prior art, the technical scheme provided by the utility model has the following advantages:

1. the magnetic ring is arranged in the stator winding, so that the high rotating speed of the fan is realized, the winding mode of the stator winding is changed, the wire diameter of a winding circuit is reduced in a limited space, the winding turns are increased, the power consumption of the fan is further reduced, and the rapid rotation and the high-efficiency cooling of the heat dissipation fan are realized.

2. The fan frame base is provided with a step for tightly matching the inner diameter of the stator winding, so that the internal structure stability of the high-rotation-speed fan is ensured.

3. And a positioning notch is arranged, and a stator winding is installed according to the positioning notch, so that the stator winding is positioned at a specific position relative to the magnetic ring, and the high rotating speed of the fan is ensured to be realized.

Drawings

FIG. 1 is a view of a silicon steel sheet structure in the background of the utility model;

FIG. 2 is a block diagram of a high efficiency heat dissipating fan in an embodiment of the present utility model;

FIG. 3 is an exploded view of a high efficiency heat dissipating fan in accordance with an embodiment of the present utility model;

FIG. 4 is a block diagram of a stator winding in an embodiment of the utility model;

FIG. 5 is a block diagram of a silicon steel sheet in an embodiment of the utility model.

The figure shows:

1. a fan frame; 11. a frame; 12. a fan frame base; 13. a step; 2. a stator assembly; 21. a stator winding; 211. silicon steel sheets; 212. an open slot; 213. a magnetic head; 214. a line; 215. loading a piece; 216. blanking; 217. positioning the notch; 22. a copper sleeve; 3. a rotor assembly; 31. a fan blade; 32. a magnetic ring; 33. a spindle core seat; 34. a shaft core; 35. a bearing; 36. a glue adding groove; 4. a groove; 5. a PCB board; 6. and a waterproof cover.

Detailed Description

For ease of understanding, the high efficiency heat dissipating fan is described below in conjunction with embodiments, which are to be understood as merely illustrative of the present utility model and not limiting the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions and positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 2 to 3, a high-efficiency heat dissipation fan comprises a fan frame 1, a stator assembly 2 fixed on the fan frame 1, and a rotor assembly 3 rotating relative to the stator assembly 2; the fan frame 1 includes framework 11 and fan frame 1 base, and the one side that fan frame 1 base deviates from stator module 2 is provided with recess 4 for embedding installation PCB board 5, and recess 4 lid has waterproof cover 6, can encapsulating PCB board 5 to the recess 4 in, and PCB board 5 is the three-phase circuit board.

The rotor assembly 3 comprises fan blades 31 which can rotate relative to the base of the fan frame 1, a magnetic ring 32 fixed on the fan blades 31, a shaft core seat 33 fixed on the fan blades 31 and a shaft core 34 fixed on the shaft core seat 33, wherein the shaft core seat 33 is made of copper materials, the shaft core 34 is inserted into the copper sleeve 22, an outer ring of a bearing 35 is fixedly connected with the copper sleeve 22, an inner ring of the bearing 35 is fixedly connected with the shaft core 34, when the rotor assembly 3 is driven to rotate by a magnetic field, the inner ring of the bearing 35 synchronously rotates along with the shaft core 34, the magnetic ring 32 is arranged between the stator winding 21 and the copper sleeve 22, specifically, an adhesive adding groove 36 is formed inside the stator winding 21 and outside the copper sleeve 22 and coaxial with the shaft core 34, and can be used for injecting anaerobic adhesive to fix the magnetic ring 32, gaps are formed between the magnetic ring 32 and the copper sleeve 22, so that the magnetic ring 32 is prevented from being worn by the high rotating speed, the magnetic ring 32 adopts neodymium-iron-boron materials, and the magnetizing strength is high.

The stator assembly 2 comprises a stator winding 21 and a copper sleeve 22 which are fixed on the base of the fan frame 1, wherein the stator winding 21 is sleeved on the periphery of the magnetic ring 32 and mutually induces a rotating magnetic field with the magnetic ring 32, the copper sleeve 22 and the base of the fan frame 1 are integrally formed in an injection molding and embedding processing mode by adopting a plastic mold, and a step 13 for tightly matching the inner diameter of the stator winding 21 is arranged on the base of the fan frame 1 on the periphery of the copper sleeve 22, so that the internal structure of the high-rotation-speed fan is ensured to be stable.

Referring to fig. 4 to 5 again, the stator winding 21 includes silicon steel sheets 211 having six open slots 212 formed therein, magnetic conductive heads 213 formed between adjacent open slots 212, a wire 214 sequentially wound around each magnetic conductive head 213, an upper sheet 215 disposed at an upper end of the silicon steel sheets 211, and a lower sheet 216 disposed at a lower end of the silicon steel sheets 211; the six open slots 212 are oriented inwardly in the direction of the magnetic field, which is reversed after winding, to perform a magnetic field switching reversal with the inner magnetic ring 32.

The silicon steel sheet 211 is annular six-slot quadrupole silicon steel lamination, the periphery of which is provided with a positioning notch 217, the stator winding 21 is placed on a fan bottom frame by a machine by taking the positioning notch 217 as a reference position, the inner diameter of the stator winding is tightly matched with the step 13, the two sides of the positioning notch 217 are respectively provided with a first magnetic conduction head and a second magnetic conduction head, the side of the second magnetic conduction head, which is far away from the positioning notch 217, is provided with a third magnetic conduction head, the opposite end of the first magnetic conduction head is provided with a fourth magnetic conduction head, the opposite end of the second magnetic conduction head is provided with a fifth magnetic conduction head, the opposite end of the third magnetic conduction head is provided with a sixth magnetic conduction head, the circuit 214 is provided with six branching lines, each branching line is correspondingly wound on one magnetic conduction head 213, and the two ends of the branching lines after the winding of the required turns are the head lines and the tail lines.

Winding mode of the silicon steel sheet 211: the tail wire on the first magnetic conduction head is connected with the head wire of the fourth magnetic conduction head, the tail wire D2 of the fourth magnetic conduction head is connected with the head wire B1 of the second magnetic conduction head, the tail wire of the second magnetic conduction head is connected with the head wire of the fifth magnetic conduction head, the tail wire E2 of the fifth magnetic conduction head is connected with the head wire C1 of the third magnetic conduction head, the tail wire of the third magnetic conduction head is connected with the head wire of the sixth magnetic conduction head, the tail wire F2 of the sixth magnetic conduction head is connected with the head wire A1 of the first magnetic conduction head, and the winding mode corresponds to the wiring mode U/V/W of the three-phase circuit board.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments may be modified or some or all of the technical features may be replaced with other technical features, which do not depart from the scope of the technical scheme of the embodiments of the present utility model.

Claims

1. The efficient heat dissipation fan is characterized by comprising a stator winding and a magnetic ring which is arranged on the inner side of the stator winding and is mutually induced with the stator winding;

2. The efficient heat dissipation fan as recited in claim 1, wherein the silicon steel sheet is provided with a positioning notch.

3. The fan of claim 2, wherein the positioning notch is located on the outer wall of the silicon steel sheet between the first magnetic head and the second magnetic head.

4. The efficient heat dissipation fan as recited in claim 1, wherein the stator winding is fixed to the fan frame and the magnetic ring is fixed to and coupled with the fan blade.

5. The efficient heat dissipation fan as recited in claim 4, wherein the fan blade is provided with a shaft core seat coaxial with the fan blade and a shaft core fixed on the shaft core seat, the fan frame comprises a frame body and a fan frame base, the fan frame base is provided with a copper sleeve, and the shaft core is inserted in the copper sleeve and connected in a rotating manner through a bearing.

6. The high efficiency heat dissipating fan of claim 5, wherein the magnetic ring is disposed outside the copper sleeve.

7. The efficient heat dissipation fan as recited in claim 6, wherein a glue adding groove is arranged between the magnetic ring and the shaft core seat.

8. The efficient heat dissipation fan as recited in claim 1, wherein the stator winding further comprises an upper sheet disposed at an upper end of the silicon steel sheet and a lower sheet disposed at a lower end of the silicon steel sheet.

9. The high efficiency heat dissipating fan of claim 5, wherein said fan frame base is provided with a step for mating with an inner diameter of the stator winding.