A high-efficiency energy-saving fan with simple structure

Abstract

The present invention relates to the field of wind turbine technology, specifically to a high-efficiency and energy-saving wind turbine with a simple structure, including a wind turbine assembly and a motor, wherein the wind turbine assembly includes a base, a motor is connected to the top of the base, a drive shaft is connected to the left side of the motor, a guide assembly is connected to the outside of the drive shaft, a drive assembly is connected to the right side of the guide assembly, the drive assembly includes a drive blade, a cylinder is connected to the right side of the drive blade, a needle bearing is connected to the bottom of the cylinder, a wire resistance is arranged on the outside of the cylinder, and a protective shell is connected to the outside of the wire resistance. The present invention can realize the guided use of wind force through the mutual cooperation of the guide assembly and the drive assembly, and then can realize the coordination of power generation and supply, thereby reducing the power consumption of the motor and achieving energy saving. At the same time, through the provision of the wind guide plate, the wind pressure can be increased, thereby improving the power generation efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of fans, and in particular to a high-efficiency and energy-saving fan with a simple structure. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Fan is China's customary abbreviation for gas compression and gas delivery machinery. Commonly referred to fans include ventilators, blowers, and wind turbines. Fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and air intake of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances.

[0003] However, with the development of production technology, there is an urgent need to develop medium-flow, medium-to-high-pressure material conveying fans. The conventional national standard for material conveying and selecting fans for polishing machines not only requires a relatively large motor power distribution, but also a C-type pulley drive. Compared with the A-type fan drive, it adds components such as bearing boxes, and the maximum outer diameter of the impeller reaches 1240mm. The fan occupies a large space as a whole and has the disadvantages of relatively complicated maintenance. At the same time, the fan impeller is driven directly by the motor. The rotation of the impeller requires the motor to provide it with a continuous source of power to realize the rotation of the impeller. At the same time, the wind energy generated by the impeller cannot be recycled while it is rotating, resulting in a waste of wind energy, making it impossible for the motor to effectively achieve high-efficiency energy saving. Especially when performing continuous work, the longer the working time, the greater the waste of discharged wind energy, which further increases the energy consumption of the fan. Therefore, it is urgent to design a simple and efficient energy-saving fan to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a high-efficiency energy-saving fan with a simple structure, so as to solve the problem in the above background technology that the fan consumes too much energy when working continuously and cannot achieve high efficiency and energy saving.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-efficiency and energy-saving fan with a simple structure, comprising a fan assembly and a motor, the fan assembly comprising a base, a motor connected to the top of the base, a drive shaft connected to the left side of the motor, a guide assembly connected to the outside of the drive shaft, a drive assembly connected to the right side of the guide assembly, the drive assembly comprising a drive blade, a cylinder connected to the right side of the drive blade, a needle bearing connected to the bottom of the cylinder, a wire resistance arranged on the outside of the cylinder, and a protective shell connected to the outside of the wire resistance.

[0006] Preferably, a fan blade is fixedly connected to the left side of the driving shaft, a casing is connected above the base, an air guide ring is connected to the inside of the casing, and the air guide ring is on the left side of the casing, an impeller is arranged on the right side of the air guide ring, and an air outlet flange is connected to the top of the casing.

[0007] Preferably, wind guide fins are provided inside the casing and are in an arc shape. The fan blades are fixedly connected to the left side of the driving shaft. The air outlet flange is in a rectangular structure and a positioning hole is provided on the edge. The impeller passes through the outside of the driving shaft and is located between the air guide ring and the air guide plate.

[0008] Preferably, the impeller comprises a wheel body, a blade is fixedly connected to the left side of the wheel body, a limiting hole is connected in the middle of the wheel body, and an air guide duct is opened above the wheel body.

[0009] Preferably, a through hole is opened in the center of the wheel body, and the wheel body is fixedly connected to the outside of the drive shaft, the blades are arc-shaped, the left inner wall of the air guide duct is cone-shaped, and there are nine air guide ducts in total. The right side of the air guide duct is inside the air guide plate, and the outer diameter of the air guide duct is smaller than the distance of the through groove of the air guide plate, and the air guide duct is at the outer edge of the blades.

[0010] Preferably, the guide assembly includes an air guide plate, a wind chamber is connected to the right side of the air guide plate, an exhaust pipe is connected to the top of the wind chamber, an adjustment baffle is provided on the left side of the exhaust pipe, and a rotating pin is provided below the adjustment baffle.

[0011] Preferably, nine through holes are provided on the right side of the air guide plate, and the through holes are inclined, nine through holes are provided on the left side of the air chamber, and the positions of the through holes are the same as the positions of the through holes on the right side of the air guide plate, a through hole is provided on the right side of the air chamber, an exhaust duct is connected to the top of the air chamber, the rotating pin is connected to the inside of the casing, the adjusting baffle is rotatably connected to the casing through the rotating pin, the top of the adjusting baffle is inclined, and the top of the corresponding casing is also inclined, a protective pad is fixedly connected to the outside of the adjusting baffle, the exhaust duct is fixedly connected to the right side of the casing through a hexagonal bolt, and a limiting rod is set at the center of the rotating pin.

[0012] Preferably, a ball bearing is connected to the center of the driving blade, and the ball bearing is sleeved on the outside of the driving shaft. A cylinder is fixedly connected to the right side of the driving blade, and the interior of the cylinder is connected to the driving shaft through a needle bearing. There are two groups of needle bearings, and the needle bearings are respectively located on the left and right sides of the cylinder. The wire resistor is fixedly connected to the left side of the fixed plate, and the protective shell has an L-shaped structure.

[0013] Preferably, the protective shell includes a fixing plate, the outside of the fixing plate is connected to a sleeve, and both left and right ends of the sleeve are provided with fastening flanges.

[0014] Preferably, the fastening flange is fixedly connected to the right side of the air chamber by hexagonal bolts, the upper part of the fixing plate is connected to the left baffle of the motor by a fastening flange, and the inner diameter of the sleeve is larger than the outer diameter of the wire resistance.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] When the high-efficiency energy-saving fan is in use, through the mutual cooperation of the guide component and the drive component, when working at high power, through the high-speed flow of wind, according to the principle that the greater the air flow rate, the smaller the pressure, the smaller the air flow rate, the greater the pressure and the flow direction of the gas is from high pressure to low pressure, the air outside the wind chamber can be attracted into the wind chamber, and the rotation drive of the driving blades can be further realized. While driving the blades to rotate, the cylinder is driven to rotate inside the coil, thereby realizing power generation processing, and then the utilization of wind force when the impeller rotates can be realized. By guiding and collecting the generated current, the current can be rectified and used for the drive of the motor, thereby effectively reducing the power consumption of the motor and realizing high efficiency and energy saving. Furthermore, when working at low power, the wind force can be guided while the fan impeller rotates, and the wind is discharged through a smaller air outlet, which can realize the pressure increase when the wind is discharged, and further the discharged wind force is guided to the top of the driving blade, and then the driving blade can be driven by the blowing of the wind to realize the rotation of the driving blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main cross-sectional structure of the present invention;

[0018] Figure 2 For the present invention Figure 1 A schematic diagram of the structure enlargement at the center A;

[0019] Figure 3 It is a right view structural schematic diagram of the present invention;

[0020] Figure 4 It is a schematic diagram of the main structure of the adjustment baffle of the present invention;

[0021] Figure 5 It is a schematic diagram of the right side structure of the coil of the present invention;

[0022] Figure 6 It is a left-side structural schematic diagram of the impeller of the present invention;

[0023] Figure 7 It is a schematic diagram of the right side structure of the impeller of the present invention.

[0024] In the figure: 1. fan assembly; 11. base; 12. motor; 13. drive shaft; 14. fan blade; 15. casing; 16. air guide ring; 17. impeller; 171. wheel body; 172. blade; 173. limit hole; 174. air guide duct; 18. air outlet flange; 2. guide assembly; 21. air guide plate; 22. air chamber; 23. exhaust duct; 24. adjustment baffle; 25. rotating pin; 3. drive assembly; 31. drive blade; 32. cylinder; 33. needle bearing; 34. wire resistance; 35. protective shell; 351. fixing plate; 352. sleeve; 353. fastening flange. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-7 , an embodiment provided by the present invention:

[0027] A high-efficiency and energy-saving fan with a simple structure comprises a fan assembly 1 and a motor 12. The fan assembly 1 comprises a base 11. A motor 12 is connected to the top of the base 11. The motor 12 adopts a three-phase asynchronous motor, specifically a YF90S-6, which is a kind of induction motor and a type of motor powered by simultaneously accessing a 380V three-phase alternating current (with a phase difference of 120 degrees). Since the rotor and the stator rotating magnetic field of the three-phase asynchronous motor rotate in the same direction and at different speeds, there is a slip rate, so it is called a three-phase asynchronous motor. The speed of the rotor of the three-phase asynchronous motor is lower than the speed of the rotating magnetic field. The rotor winding generates electromotive force and current due to the relative motion between the rotor winding and the magnetic field, and interacts with the magnetic field to generate electromagnetic torque to achieve energy conversion.

[0028] The left side of the motor 12 is connected to a drive shaft 13, the outside of the drive shaft 13 is connected to a guide component 2, the right side of the guide component 2 is connected to a drive component 3, the drive component 3 includes a drive blade 31, the right side of the drive blade 31 is connected to a cylinder 32, the bottom of the cylinder 32 is connected to a needle bearing 33, and the outside of the cylinder 32 is provided with a wire resistor 34, the wire resistor 34 usually refers to a ring-shaped wire winding, the most common coil applications are: motors, inductors, transformers and loop antennas, etc. The coil in the circuit refers to an inductor, which means that the wires are wound one by one, and the wires are insulated from each other. The insulating tube can be hollow or contain an iron core or a magnetic powder core, which is referred to as an inductor. The inductor can be divided into a fixed inductor and a variable inductor. The fixed inductor coil is referred to as an inductor or coil. The outside of the wire resistor 34 is connected to a protective shell 35. Through the arrangement of this structure, the wind force can be utilized, thereby improving the exhaust efficiency when the fan is rotating, and achieving energy saving.

[0029] Furthermore, a fan blade 14 is fixedly connected to the left side of the driving shaft 13, a casing 15 is connected to the top of the base 11, an air guide ring 16 is connected to the inside of the casing 15, and the air guide ring 16 is located on the left side of the casing 15, an impeller 17 is arranged on the right side of the air guide ring 16, and an air outlet flange 18 is connected to the top of the casing 15. Through the arrangement of the fan blade 14, the impeller 17 can rotate while the fan blade 14 rotates to attract nearby air, thereby improving the ventilation effect of the device, accelerating the circulation of air and improving the use efficiency of the device. At the same time, due to the improvement of the ventilation effect, the use time of the exhaust of the device can be shortened, thereby reducing the energy consumption of the device, playing a role of energy saving and reducing the waste of electricity.

[0030] Furthermore, the interior of the casing 15 is provided with wind guide fins, and the wind guide fins are in an arc shape, which can guide the wind while the impeller 17 rotates under low power operation, so that when the impeller 17 rotates, the wind flow generated by it can be discharged from the wind guide duct 174 through the setting of the wind guide fins, and then the wind can be diverted to the interior of the guide assembly 2 to drive the drive assembly 3. The fan blade 14 is fixedly connected to the left side of the drive shaft 13, and the air outlet flange 18 is a rectangular structure, and a positioning hole is opened on the edge for connecting an external pipeline. The impeller 17 passes through the outside of the drive shaft 13, and the impeller 17 is between the air guide ring 16 and the air guide plate 21.

[0031] Furthermore, the impeller 17 includes a wheel body 171, a blade 172 is fixedly connected to the left side of the wheel body 171, a limiting hole 173 is connected in the middle of the wheel body 171, and an air duct 174 is opened above the wheel body 171. By improving the impeller 17 of the traditional structure, an air duct 174 is opened above the wheel body 171, and the wind can be diverted and guided through the air duct 174, so that the wind can be blown into the inside of the wind chamber 22, thereby blowing the driving blades 31.

[0032] Furthermore, a through hole is opened in the center of the wheel body 171, and the wheel body 171 is fixedly connected to the outside of the driving shaft 13, the blades 172 are arc-shaped, and the left inner wall of the air guide duct 174 is cone-shaped. There are nine air guide ducts 174 in total, and the right side of the air guide duct 174 is inside the air guide plate 21, and the outer diameter of the air guide duct 174 is smaller than the through groove distance of the air guide plate 21, and the air guide duct 174 is at the outer edge of the blade 172. The right end of the air guide duct 174 is inserted into the inside of the air guide plate 21, and the air guide duct 174 can rotate inside the air guide plate 21, and at the same time, the left side of the air guide plate 21 is in contact with the right side surface of the wheel body 171, and the left side of the air guide plate 21 is connected with a sealing gasket to achieve sealing against wind force.

[0033] Furthermore, the guide assembly 2 includes an air guide plate 21, the right side of the air guide plate 21 is connected to a wind chamber 22, the top of the air chamber 22 is connected to an exhaust duct 23, an adjusting baffle 24 is provided on the left side of the exhaust duct 23, and a rotating pin 25 is provided below the adjusting baffle 24. Through the setting of this structure, under low-power operation, the wind force can be diverted and guided, so that the diverted wind force can be blown to the top of the driving blade 31, thereby realizing the driving of the driving blade 31, and through the special shape setting of the air guide plate 21, the wind speed can be increased, the blowing effect on the driving blade 31 can be improved, and the rotation speed of the driving blade 31 can be accelerated.

[0034] Furthermore, nine through holes are provided on the right side of the air guide plate 21, and the through holes are inclined, nine through holes are provided on the left side of the wind chamber 22, and the positions of the through holes are the same as the positions of the through holes on the right side of the air guide plate 21, a through hole is provided on the right side of the wind chamber 22, and an exhaust pipe 23 is connected to the top of the wind chamber 22, and control valves are provided on the through holes at both ends of the wind chamber 22. When the device is operated at low power, the control valve on the right side of the wind chamber 22 is closed, so that when the device is working at low power, the wind can be diverted from the inside of the wind chamber 22, driving the driving blades 31 to rotate, realizing diversion ventilation and dust removal, and avoiding blockage. When working at high power, the control valve on the left side of the wind chamber 22 is closed. When high-speed wind is discharged from the inside of the device, its high-speed flowing wind will form a negative pressure in the through holes on the left side of the wind chamber 22. The pressure is used to attract air, and the wind force on the right side of the air chamber 22 can be used to suck air in, so as to further rotate the driving blade 31. The rotating pin 25 is connected to the inside of the casing 15, and the adjusting baffle 24 is rotatably connected to the casing 15 through the rotating pin 25. The top of the adjusting baffle 24 is inclined, and the top of the corresponding casing 15 is also inclined. A protective pad is fixedly connected to the outside of the adjusting baffle 24, and the exhaust pipe 23 is fixedly connected to the right side of the casing 15 by a hexagonal bolt. A limiting rod is arranged at the center of the rotating pin 25. The special structure on the right side of the air guide plate 21 can realize the diversion of wind force, and the through hole on the right side of the air guide plate 21 is inclined, which can fully improve the effect of wind blowing above the driving blade 31 and improve the blowing effect on the driving blade 31.

[0035] Furthermore, a ball bearing is connected to the center of the driving blade 31. The ball bearing is a type of rolling bearing. A spherical alloy steel ball is installed between the inner steel ring and the outer steel ring to reduce friction during power transmission and improve the transmission efficiency of mechanical power in a rolling manner. The ball bearing is sleeved on the outside of the driving shaft 13, which effectively reduces friction, improves the rotation efficiency of the driving blade 31, and improves the service life of the driving blade 31 and the driving shaft 13. The service life of the radiator is also extended, and the rotation of the driving blade 31 is achieved by the blowing of wind, so that the rotation of the cylinder 32 can be achieved through the driving blade 31. The right side of the driving blade 31 is fixedly connected with a cylinder 32, and the cylinder 32 is hollow. The inner wall of the cylinder 32 is connected to the outside of the driving shaft 13 through a needle bearing 33.

[0036] The inside of the cylinder 32 is connected to the drive shaft 13 through a needle bearing 33. There are two groups of needle bearings 33. The needle bearing 33 is a roller bearing with rollers. Relative to its diameter, the rollers are thin and long. This type of roller is called a needle roller. Despite its small cross-section, the bearing still has a high load-bearing capacity. The needle bearing 33 is equipped with thin and long rollers, so the radial structure is compact. When its inner diameter size and load capacity are the same as those of other types of bearings, the outer diameter is the smallest, and the needle bearings 33 are respectively located on the left and right sides of the cylinder 32. The wire resistor 34 is fixedly connected to the left side of the fixed plate 351. The protective shell 35 is L-shaped. While the cylinder 32 rotates inside the wire resistor 34, it can generate electricity according to the principle of electromagnetic induction, and at the same time guide it to an external controller and a storage device through electric wires. When in use, the power is rectified by an inverter device, which facilitates the use of power for the driving tool of the motor 12, thereby reducing the power consumption of the motor 12 and achieving energy-saving work. In addition, the power consumption can be reduced according to the long-term operation of the device, saving electricity and energy.

[0037] Furthermore, the protective shell 35 includes a fixing plate 351, the outside of which is connected to a sleeve 352, and both left and right ends of the sleeve 352 are provided with fastening flanges 353. Through the setting of this structure, the installation, fixation and protection of the wire resistor 34 can be achieved to prevent external forces from causing damage to the wire resistor 34, thereby affecting the use effect of the driving component 3.

[0038] Furthermore, the fastening flange 353 is fixedly connected to the right side of the air chamber 22 by hexagonal bolts, and the top of the fixing plate 351 is connected to the left baffle of the motor 12 by the fastening flange 353. The inner diameter of the sleeve 352 is larger than the outer diameter of the wire resistor 34. A baffle is provided on the left side of the motor 12 for installing and fixing the protective shell 35 while installing the motor 12, and fixing the wire resistor 34 at the same time, so as to facilitate the rotation of the cylinder 32 inside the wire resistor 34.

[0039] Working principle: When the present invention is in use, the device is first installed, and the left side of the air guide ring 16 is connected to the exhaust part of the equipment, and then the motor 12 is connected to the external power supply to start the motor 12. The start of the motor 12 can drive the drive shaft 13 to rotate, and the rotation of the drive shaft 13 can drive the impeller 17 and the fan blades 14 to rotate. The rotation of the fan blades 14 can absorb and draw the air on the left side of the air guide ring 16, and attract the air to the inside of the air guide ring 16. Further, through the rotation of the impeller 17, the air can be further guided to rotate and discharged through the outlet flange 18, so as to achieve ventilation and dust removal. While the impeller 17 rotates, a part of the wind force can be guided and separated through the air guide duct 174.

[0040] The wind force diverted through the wind guide duct 174 can be transported to the inside of the wind chamber 22 through the wind guide plate 21, and the structural arrangement of the wind guide plate 21 and the wind guide duct 174 can gradually achieve compression of the wind force, thereby increasing the pressure of the wind discharge, and further the wind force blown out from the wind guide plate 21 blows over the driving blades 31, thereby driving the driving blades 31 to rotate, and through the increase in wind pressure, the blowing effect of the wind on the driving blades 31 can be improved. (When the device is operating at low power, the control valve on the right side of the wind chamber 22 is closed, so that when the device is working at low power, the wind can be diverted from the inside of the wind chamber 22, driving the driving blades 31 to rotate, while achieving diversion ventilation and dust removal to avoid blockage. When working at high power, The control valve on the left side of the wind chamber 22 is closed. When high-speed wind is discharged from the inside of the device, the high-speed flowing wind will form a negative pressure in the through hole on the left side of the wind chamber 22, thereby attracting air. The wind on the right side of the wind chamber 22 can further suck air in, thereby further rotating the driving blade 31), thereby increasing the rotation speed of the driving blade 31. The driving blade 31 can also drive the cylinder 32 to rotate while the cylinder 32 rotates inside the wire resistor 34. The corresponding current can be generated while the cylinder 32 rotates inside the wire resistor 34. The electricity can be stored through an external storage device and an inverter device, and then transmitted to the motor 12 for use, thereby reducing the power consumption of the motor 12, achieving energy saving and consumption reduction, and improving the high efficiency and energy saving of the device.

[0041] The wind force blown into the air chamber 22 is further guided and can be guided from the exhaust pipe 23 to flow back into the casing 15 and be discharged through the outlet flange 18. By adjusting the setting of the baffle 24, it is possible to prevent the wind force inside the casing 15 from blowing into the exhaust pipe 23 and causing a conflict between the two. At the same time, since the diameter of the exhaust pipe 23 is small, the pressure of the wind blown out is greater than the wind force inside the casing 15, thereby causing the adjustment baffle 24 to deflect toward the inside of the casing 15 to achieve the convergence and discharge of wind force.

[0042] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A high-efficiency energy-saving fan with a simple structure, comprising a fan assembly (1) and a motor (12), characterized in that: The fan assembly (1) comprises a base (11), a motor (12) is connected to the top of the base (11), a drive shaft (13) is connected to the left side of the motor (12), a fan blade (14) is fixedly connected to the left side of the drive shaft (13), a casing (15) is connected to the top of the base (11), an air guide ring (16) is connected to the inside of the casing (15), and the air guide ring (16) is located on the left side of the casing (15), an impeller (17) is arranged on the right side of the air guide ring (16), an air outlet flange (18) is connected to the top of the casing (15), and a guide assembly (14) is connected to the outside of the drive shaft (13). The guide assembly (2) is connected to a driving assembly (3) on the right side of the guide assembly (2), the driving assembly (3) comprises a driving blade (31), the driving blade (31) is connected to a cylinder (32) on the right side, the cylinder (32) is connected to a needle bearing (33) inside, the cylinder (32) is provided with a wire resistor (34) outside, the wire resistor (34) is connected to a protective shell (35) outside, the protective shell (35) comprises a fixing plate (351), the fixing plate (351) is connected to a sleeve (352) outside, and the sleeve (352) is provided with fastening flanges (353) at both left and right ends; The guide assembly (2) comprises an air guide plate (21), the right side of the air guide plate (21) is connected to an air chamber (22), the top of the air chamber (22) is connected to an exhaust pipe (23), an adjustment baffle (24) is provided on the left side of the exhaust pipe (23), a rotating pin (25) is provided below the adjustment baffle (24), nine through holes are provided on the right side of the air guide plate (21), and the through holes are inclined, nine through holes are provided on the left side of the air chamber (22), and the positions of the through holes are the same as those of the through holes on the right side of the air guide plate (21), and the air chamber (22) is provided at the bottom of the air chamber (22). A through hole is opened on the right side, the top of the air chamber (22) is connected to an exhaust pipe (23), the rotating pin (25) is connected to the inside of the casing (15), the adjusting baffle (24) is rotatably connected to the casing (15) via the rotating pin (25), the top of the adjusting baffle (24) is inclined, and the top of the corresponding casing (15) is also inclined, the outside of the adjusting baffle (24) is fixedly connected to a protective pad, the exhaust pipe (23) is fixedly connected to the right side of the casing (15) via a hexagonal bolt, and a limit rod is provided at the center of the rotating pin (25).

2. A high-efficiency energy-saving fan with a simple structure according to claim 1, characterized in that: The casing (15) is provided with an air guide fin in an arc shape, the fan blade (14) is fixedly connected to the left side of the drive shaft (13), the air outlet flange (18) is in a rectangular structure, and a positioning hole is provided on the edge, the impeller (17) passes through the outside of the drive shaft (13), and the impeller (17) is located between the air guide ring (16) and the air guide plate (21).

3. A high-efficiency energy-saving fan with a simple structure according to claim 1, characterized in that: The impeller (17) comprises a wheel body (171), a blade (172) is fixedly connected to the left side of the wheel body (171), a limiting hole (173) is connected in the middle of the wheel body (171), and an air guide duct (174) is provided above the wheel body (171).

4. A high-efficiency energy-saving fan with a simple structure according to claim 3, characterized in that: A through hole is provided at the center of the wheel body (171), and the wheel body (171) is fixedly connected to the outside of the drive shaft (13); the blades (172) are in an arc shape; the left inner wall of the air guide pipe (174) is in a cone shape; nine air guide pipes (174) are provided in total; the right side of the air guide pipe (174) is located inside the air guide plate (21); and the air guide pipe (174) is located at the outer edge of the blades (172).

5. A high-efficiency energy-saving fan with a simple structure according to claim 1, characterized in that: A ball bearing is connected to the center of the driving blade (31), and the ball bearing is sleeved on the outside of the driving shaft (13). A cylinder (32) is fixedly connected to the right side of the driving blade (31), and the inside of the cylinder (32) is connected to the driving shaft (13) via a needle bearing (33). Two groups of needle bearings (33) are provided, and the needle bearings (33) are respectively located on the left and right sides of the cylinder (32). The wire resistor (34) is fixedly connected to the left side of the fixing plate (351), and the protective shell (35) is in an L-shaped structure.

6. A high-efficiency energy-saving fan with a simple structure according to claim 1, characterized in that: The fastening flange (353) is fixedly connected to the right side of the air chamber (22) via hexagonal bolts, the upper part of the fixing plate (351) is connected to the left baffle of the motor (12) via the fastening flange (353), and the inner diameter of the sleeve (352) is greater than the outer diameter of the wire resistance (34).

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