Elastically fixed mixed flow ice compress fan

Abstract

The utility model relates to the technical field of fans, and discloses an elastically fixed mixed flow ice compress fan which comprises a fan head used for driving to generate airflow and a handle connected with the fan head. The fan head comprises an air duct assembly, a fan assembly and a refrigeration assembly; the air duct assembly is provided with an air inlet and an air outlet. The fan assembly is arranged in the air duct assembly, and the fan assembly is driven to generate airflow; the refrigeration assembly is arranged on the end face of an air outlet of the air duct assembly and used for driving air flow to be cooled. The handle comprises a telescopic clamping assembly, and the telescopic clamping assembly can move in a telescopic mode relative to the handle and is clamped on an external object to be fixed. A small and exquisite clamping structure is adopted, so that the device can be suitable for narrow clamping space and is more convenient to use; and meanwhile, the blown airflow can be cooled, and the better cooling effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to an elastically fixed mixed flow ice compress fan. Background Art

[0002] A fan is a household appliance that uses a motor to drive the blades to rotate to accelerate the circulation of air. It is mainly used for cooling and circulating air.

[0003] Handheld fans are popular in hot weather because they are portable and can cool users down. However, existing handheld fans have the following main problems: First, they can only be used by hand, making them unstable and prone to falling when placed on a table. Second, their air flow accelerates the circulation of surrounding air, so when the ambient temperature is high, the air blown out is too hot to effectively cool the user.

[0004] Therefore, improvements need to be made to this. Utility Model Content

[0005] The technical problem solved by the present invention is to provide an elastically fixed mixed flow ice compress fan for solving the problems raised in the above-mentioned background technology in view of the defects existing in the above-mentioned prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: an elastically fixed mixed flow ice compress fan, comprising: a fan head for driving to generate airflow and a handle connected to the fan head; the fan head comprises an air duct assembly, a fan assembly and a refrigeration assembly; the air duct assembly has an air inlet and an air outlet; the fan assembly is arranged in the air duct assembly, and the fan assembly drives to generate airflow; the refrigeration assembly is arranged on the air outlet end face of the air duct assembly, and the refrigeration assembly is used to drive to cool the airflow; the handle comprises a telescopic clamping assembly, and the telescopic clamping assembly can be telescopically moved relative to the handle and clamped on an external object for fixation.

[0007] Furthermore, the refrigeration component includes a semiconductor refrigeration plate and a cooling member, the cooling member is connected to the cold surface of the semiconductor refrigeration plate, and the semiconductor refrigeration plate drives the air flow to cool down.

[0008] Furthermore, the telescopic clamping assembly includes a telescopic shell, a telescopic rod, an elastic member and a base; the telescopic shell is provided with one or more telescopic channels, the telescopic rod is provided in the telescopic channel, one end of the telescopic rod extends outside the telescopic channel and is connected to the base, and the elastic member is sleeved on the telescopic rod and placed in the telescopic channel; when the base is stretched by external force, the telescopic rod compresses the elastic member and moves along the telescopic channel, so that the base and the bottom of the handle are clamped on an external object.

[0009] Furthermore, a protruding first step is provided at the lower portion of the telescopic channel, a protruding second step is provided at the upper portion of the telescopic rod, and the elastic member is placed between the first step and the second step.

[0010] Furthermore, the fan head is hinged to the handle, and a recessed receiving groove is provided on one side of the upper part of the handle, and rotating holes are provided on both sides of the receiving groove; a rotating shaft is provided on the outside of the fan head, and the rotating shaft is placed in the receiving groove, and the rotating shaft is connected to the rotating hole.

[0011] Furthermore, the air duct assembly includes a first shell, a second shell and a third shell; the fan assembly includes a first motor and fan blades; the first shell, the first shell is located at the air inlet end; the first shell includes a first outer ring, a motor mounting seat and one or more first pressure plates; the first motor is arranged on the motor mounting seat; the fan blades are arranged on the output end of the first motor; the first pressure plates are distributed on the inner wall of the first outer ring and extend to connect the outer peripheral edge of the motor mounting seat; the inner wall of the first outer ring, the first pressure plate and the motor mounting seat form a first speed-increasing air duct, and the first speed-increasing air duct is increased by the first pressure plate, resulting in a smaller radial ventilation area, thereby pressurizing and accelerating the airflow; the second shell, the second shell is arranged at the air outlet end of the first shell; the second shell includes a second outer ring, a booster seat and and one or more second pressure plates; the second pressure plates are distributed on the inner wall of the second outer ring and extend to connect to the outer peripheral edge of the boost seat; the inner wall of the second outer ring, the second pressure plate and the boost seat form a second speed-increasing air duct, and the second speed-increasing air duct is increased by the second pressure plate, resulting in a smaller radial ventilation area, thereby pressurizing and accelerating the airflow; a third shell, the third shell is arranged at the air outlet end of the second shell; the third shell includes a third outer ring, an air guide seat and one or more third pressure plates; the third pressure plate is distributed on the inner wall of the third outer ring and extends to connect to the outer peripheral edge of the air guide seat; the third outer ring, the third pressure plate and the air guide seat form a third speed-increasing air duct, and the third speed-increasing air duct is increased by the third pressure plate, resulting in a smaller radial ventilation area, thereby pressurizing and accelerating the airflow so that the airflow is guided to be blown out.

[0012] Furthermore, the first pressure plate is distributed clockwise or counterclockwise from the air inlet end to the air outlet end, so that the first pressure plate of the first speed-increasing air duct guides the airflow forward or gathers the airflow in the reverse direction to the second speed-increasing air duct, and the second pressure plate is distributed counterclockwise or clockwise from the air inlet end to the air outlet end, so that the second pressure plate gathers the airflow in the reverse direction or blows it out in the forward direction, thereby achieving the effect of pressurizing and gathering the airflow.

[0013] Furthermore, the first motor includes a stator and a rotor, the stator is fixed on the motor mounting seat, the rotor is arranged on the fan blade, and the rotor is sleeved on the stator.

[0014] Furthermore, the motor mounting seat is provided with a convex column extending axially and hollow inside; the fan blades include a hub portion and blades evenly arranged on the outer peripheral surface of the hub portion, and the hub portion has a receiving portion recessed inwardly; the stator includes an iron core inserted on the convex column and a coil wound on the iron core; the rotor includes a rotating shaft axially arranged in the receiving portion and a magnetic ring attached to the radial inner wall of the receiving portion, and the rotating shaft is inserted in the convex column.

[0015] Furthermore, it includes a driving circuit board, which is arranged in the handle; a power supply interface, which is arranged on the handle; and a battery, which is arranged in the handle.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. A telescopic clamping assembly is installed on the handle to clamp the fan body in place during use. This features a compact structure and low production cost. It can be used in a variety of scenarios, such as desktop edges and hole locations, extending its range of applications. Furthermore, the refrigeration assembly cools the airflow, allowing for faster cooling and improved cooling efficiency.

[0018] 2. The fan head can be rotated relative to the handle to adjust the air outlet direction of the fan head to meet the user's needs.

[0019] 3. Structurally, the first, second and third speed-increasing air ducts are designed to achieve step-by-step pressure and speed increase of the airflow and increase the air supply distance.

[0020] 4. The design of the pressure plate adopts a combination of clockwise and counterclockwise distribution methods to adjust the airflow to first gather the wind and then guide the wind, or first guide the wind and then gather the wind. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the utility model.

[0022] Figure 2 yes Figure 1 Schematic diagram of the structure from another angle.

[0023] Figure 3 It is a schematic diagram of the extended structure of the utility model.

[0024] Figure 4 It is a schematic diagram of the explosion structure of the utility model.

[0025] Figure 5 This is a structural diagram of the fan head.

[0026] Figure 6 It is a schematic diagram of the explosion structure of the utility model.

[0027] Figure 7 It is a structural diagram of the refrigeration component.

[0028] Figure 8 It is a structural schematic diagram of the telescopic clamping assembly.

[0029] Figure 9 is a cross-sectional view of the telescopic clamping assembly.

[0030] Figure 10 yes Figure 9 Schematic diagram of the local enlarged structure.

[0031] Figure 11 yes Figure 9 Schematic diagram of the local enlarged structure.

[0032] Figure 12 This is a schematic diagram of the exploded structure of the fan head.

[0033] Figure 13 It is a structural schematic diagram of the first shell.

[0034] Figure 14 It is a structural schematic diagram of the second shell.

[0035] Figure 15 It is a structural diagram of the third shell.

[0036] Figure 16 This is a cross-sectional view of the fan head.

[0037] Figure 1: 1. Fan head; 2. Handle; 3. Air duct assembly; 4. Fan assembly; 5. Refrigeration assembly; 6. Telescopic clamping assembly; 7. Semiconductor refrigeration plate; 8. Cooling conductor; 9. Telescopic housing; 10. Telescopic rod; 11. Elastic member; 12. Base; 13. Telescopic channel; 14. First step; 15. Second step; 16. Accommodating groove; 17. Rotation hole; 18. Rotation axis; 19. First housing; 20. Second housing; 21. Third housing Body; 22. First motor; 23. Fan blades; 24. First outer ring; 25. Motor mounting seat; 26. First pressure plate; 27. First speed-increasing air duct; 28. Second outer ring; 29. ​​Pressure seat; 30. Second pressure plate; 31. Second speed-increasing air duct; 32. Third outer ring; 33. Air guide seat; 34. Third pressure plate; 35. Third speed-increasing air duct; 36. Stator; 37. Rotor; 38. Drive circuit board; 39. Power supply interface; 40. Battery. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below with reference to the accompanying drawings.

[0039] The embodiments described with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application 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 operate in a specific orientation, and therefore should not be construed as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "several" or "multiple" means two or more, unless otherwise specifically defined. In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; or internal communication between two components. A person skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances. In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them. Furthermore, "above," "above," and "above" a first feature may include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher level than the second feature. "Below," "below," and "below" a first feature may include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a lower level than the second feature.

[0040] In view of the technical problems recorded in the background technology, such as Figure 1-7As shown, an elastically fixed mixed-flow ice compress fan is provided, comprising: a fan head 1 for driving to generate airflow and a handle 2 connected to the fan head 1; the fan head 1 comprises an air duct assembly 3, a fan assembly 4 and a refrigeration assembly 5; the air duct assembly 3 has an air inlet and an air outlet; the fan assembly 4 is arranged in the air duct assembly 3, and the fan assembly 4 drives to generate airflow; the refrigeration assembly 5 is arranged on the air outlet end face of the air duct assembly 3, and the refrigeration assembly 5 is used to drive the airflow to cool down; the handle 2 comprises a telescopic clamping assembly 6, and the telescopic clamping assembly 6 can be telescopically moved relative to the handle 2 and clamped on an external object for fixation.

[0041] In the above technical solution, the air duct assembly 3 is used for forming and circulating the airflow; the fan assembly 4 is used for driving the generation of the airflow. A telescopic clamping assembly 6 is provided at the position of the handle 2. The telescopic clamping assembly 6 is fixed by stretching. Under the action of elastic force, the handle 2 can be fixed to an external object, such as the edge of a desktop or a hole. Since the structure can be prepared in a small volume, the cost can be reduced; at the same time, it can be applied to different usage scenarios and has a wide range of uses. A refrigeration assembly 5 is provided at the air outlet position of the fan head 1. The refrigeration assembly 5 cools the airflow when driven, so that the temperature of the blown airflow is reduced, thereby improving the cooling effect; at the same time, the refrigeration assembly 5 can be used as an ice compress. The user can stick it on the skin to achieve rapid cooling.

[0042] like Figure 7 As shown, the refrigeration assembly 5 includes a semiconductor refrigeration sheet 7 and a cooling member 8. The cooling member 8 is connected to the cold surface of the semiconductor refrigeration sheet 7. The semiconductor refrigeration sheet 7 drives the airflow to cool down.

[0043] Specifically, the refrigeration component 5 used adopts a semiconductor refrigeration plate 7 and a cooling conductor 8. When the semiconductor refrigeration plate 7 is powered on, the temperature of the cooling surface thereof drops, and it can cool the passing airflow. At the same time, the cooling conductor 8 cools down through heat transfer and can be used as an ice compress surface for the user to apply.

[0044] like Figure 8-11 As shown, the telescopic clamping assembly 6 includes a telescopic shell 9, a telescopic rod 10, an elastic member 11 and a base 12; the telescopic shell 9 is provided with one or more telescopic channels 13, the telescopic rod 10 is provided in the telescopic channel 13, one end of the telescopic rod 10 extends outside the telescopic channel 13 and is connected to the base 12, the elastic member is sleeved on the telescopic rod 10 and placed in the telescopic channel 13; when the base 12 is stretched by external force, the telescopic rod 10 compresses the elastic member 11 and moves along the telescopic channel 13, so that the base 12 and the bottom of the handle 2 are clamped on an external object.

[0045] In the above, a specific implementable telescopic clamping assembly 6 structure is provided. The telescopic housing 9 can be arranged outside the handle 2 or inside the handle 2. The telescopic housing 9 can be assembled with the handle 2 as an independent component or formed integrally with the handle 2. Preferably, the telescopic housing 9 is prepared separately and then assembled on the handle 2 by screws. A telescopic channel 13 is provided in the telescopic housing 9. The number of telescopic channels 13 is determined according to the number of telescopic rods 10. For example, when one telescopic rod 10 is used, one telescopic channel 13 is used; when two telescopic rods 10 are used, two telescopic channels 13 are used, and so on. An elastic member 11 is installed in the telescopic channel 13. The elastic member 11 is preferably a spring or other component having the same properties as a spring.

[0046] In actual use, one end of the telescopic rod 10 is placed in the telescopic channel 13, and the other end of the telescopic rod 10 is connected to the base 12. Under the action of external force, the telescopic rod 10 compresses the elastic member 11 in the telescopic channel 13, and the base 12 and the bottom of the handle 2 are manually aligned to the position where they need to be clamped. After releasing, they are clamped and fixed under the force of the elastic member 11. It has a simple structure with few parts; it can be made compact in structure and does not take up space; it can adapt to various usage scenarios

[0047] Specifically, a protruding first step 14 is provided at the lower portion of the telescopic channel 13 , a protruding second step 15 is provided at the upper portion of the telescopic rod 10 , and the elastic member 11 is disposed between the first step 14 and the second step 15 .

[0048] In order to limit the position and compression of the spring, a first step 14 is provided in the telescopic channel 13 and a second step 15 is provided on the upper part of the telescopic rod 10. The outer diameter of the second step 15 matches the inner diameter of the telescopic channel 13. Therefore, when the telescopic rod 10 is extended and retracted in the telescopic channel 13, the spring moves within the first step 14 and the second step 15.

[0049] refer to Figure 4 As shown, the fan head 1 is hinged to the handle 2, and a recessed receiving groove 16 is provided on one side of the upper part of the handle 2, and rotation holes 17 are provided on both sides of the receiving groove 16; a rotating shaft 18 is provided on the outside of the fan head 1, and the rotating shaft 18 is placed in the receiving groove 16, and the rotating shaft 18 is connected to the rotating hole 17.

[0050] In practice, the fan head 1 and handle 2 are hinged, allowing the user to rotate the fan head 1 to adjust the airflow direction. Specifically, a rotation axis 18 is provided at the bottom of the fan head 1, and a receiving slot 16 is provided on the handle 2. The receiving slot 16 is used to limit the rotation angle of the fan head 1. A rotation hole 17 is provided within the receiving slot 16, and a damping pad can be installed between the rotation axis 18 and the rotation hole 17 to adjust the airflow direction of the fan head 1. This allows the fan head 1 to rotate within the receiving slot 16, adjusting the airflow direction of the fan head 1.

[0051] refer to Figure 12 As shown, the air duct assembly 3 includes a first shell 19, a second shell 20 and a third shell 21; the fan assembly 4 includes a first motor 22 and a fan blade 23; the first shell 19, the first shell 19 is located at the air inlet end; the first shell 19 includes a first outer ring 24, a motor mounting seat 25 and one or more first pressure plates 26; the first motor 22 is arranged on the motor mounting seat 25; the fan blades 23 are arranged at the output end of the first motor 22; the first pressure plates 26 are distributed on the inner wall of the first outer ring 24 and extend to connect the outer peripheral edge of the motor mounting seat 25; the inner wall of the first outer ring 24, the first pressure plate 26 and the motor mounting seat 25 form a first speed-increasing air duct 27, the first speed-increasing air duct 27 is increased by the first pressure plate 26, resulting in a smaller radial ventilation area, thereby pressurizing and accelerating the airflow; the second shell 20, the second shell 20 is arranged at the air outlet end of the first shell 19; the second shell 20 includes a second outer ring 28, a pressure plate 26 and a second pressure plate Seat 29 and one or more second pressure plates 30; the second pressure plates 30 are distributed on the inner wall of the second outer ring 28 and extend to connect to the outer peripheral edge of the boost seat 29; the inner wall of the second outer ring 28, the second pressure plate 30 and the boost seat 29 form a second speed-increasing air duct 31, and the second speed-increasing air duct 31 is increased by the second pressure plate 30, resulting in a smaller radial ventilation area, thereby pressurizing and accelerating the airflow; a third shell 21, the third shell 21 is arranged at the air outlet end of the second shell 20; the third shell 21 includes a third outer ring 32, an air guide seat 33 and one or more third pressure plates 34; the third pressure plates 34 are distributed on the inner wall of the third outer ring 32 and extend to connect to the outer peripheral edge of the air guide seat 33; the third outer ring 32, the third pressure plate 34 and the air guide seat 33 form a third speed-increasing air duct 35, and the third speed-increasing air duct 35 is increased by the third pressure plate 34, resulting in a smaller radial ventilation area, thereby pressurizing and accelerating the airflow so that the airflow is guided to be blown out.

[0052] like Figure 13For the first shell 19 including the first outer ring 24, the motor mounting seat 25 and the first pressurizing sheet 26, the motor mounting seat 25 can be integrally formed with the first outer ring 24 or be an independent component, and the motor mounting seat 25 can be arranged at the air inlet end position or the air outlet end position of the first outer ring 24. As an implementable technical manner, the motor mounting seat 25 is integrally formed with the first outer ring 24, and the motor mounting seat 25 is arranged at the air outlet end of the first outer ring 24. The first pressurizing sheet 26 can be uniformly distributed or unevenly distributed between the first outer ring 24 and the motor mounting seat 25. Preferably, the first pressurizing sheet 26 is in the form of circumferential uniform distribution. Due to the existence of the first pressurizing sheet 26, the radial air passage area of the first outer ring 24 through which the airflow passes is reduced, and the first shell 19 is located at the air inlet end, so that the airflow can converge the airflow around, increase the air volume, and at the same time, the airflow is pressurized to increase the airflow speed.

[0053] As Figure 14 , the second shell 20 includes the second outer ring 28, the pressurizing seat 29 and the second pressurizing sheet 30. The second outer ring 28, the pressurizing seat 29 and the second pressurizing sheet 30 can be integrally formed or in the form of independent components. Preferably, the second outer ring 28, the pressurizing seat 29 and the second pressurizing sheet 30 are integrally formed. The second shell 20 can be in the form of an integral or independent component with the first shell 19. The second pressurizing sheet 30 can be uniformly distributed or unevenly distributed between the second outer ring 28 and the pressurizing seat 29. Preferably, the second pressurizing sheet 30 is in the form of circumferential uniform distribution. Due to the existence of the second pressurizing sheet 30 in the second speed-increasing air duct 31, the radial air passage area of the second outer ring 28 through which the airflow passes is reduced, further pressurizing the airflow to increase the airflow speed.

[0054] As Figure 15 , the third shell 21 includes the third outer ring 32, the air guide seat 33 and the third pressurizing sheet 34. The third outer ring 32, the air guide seat 33 and the third pressurizing sheet 34 can be integrally formed or in the form of independent components. Preferably, the third outer ring 32, the air guide seat 33 and the third pressurizing sheet 34 are integrally formed. The third shell 21 can be integrated with the second shell 20, or the third shell 21 can be integrated with the second shell 20 and the first shell 19, or the third shell 21, the second shell 20 and the first shell 19 can be in the form of independent components. The third pressurizing sheet 34 can be uniformly distributed or unevenly distributed between the third outer ring 32 and the air guide seat 33. Preferably, the third pressurizing sheet 34 is in the form of circumferential uniform distribution. Due to the existence of the third pressurizing sheet 34 in the third speed-increasing air duct 35, the radial air passage area of the third outer ring 32 through which the airflow passes is reduced, further pressurizing the airflow to increase the airflow speed.

[0055] A three-speed increasing air duct form is adopted. When the air flow passes through the first speed increasing air duct 27, the first pressure plate 26 provided in the first speed increasing air duct 27 causes the radial ventilation area to become smaller to achieve pressurization of the air flow. At the same time, the first speed increasing air duct 27 is located at the air inlet end, thereby being able to absorb the surrounding air and increase the air volume; when the air flow passes through the second speed increasing air duct 31, the second pressure plate 30 provided in the second speed increasing air duct 31 causes the radial ventilation area to become smaller, and further pressurizes the air flow in the second stage; when the air flow passes through the third speed increasing air duct 35, the third pressure plate 34 provided in the third speed increasing air duct 35 causes the radial ventilation area to become smaller, and further pressurizes the air flow in the third stage, thereby achieving an increase in the air volume and air supply distance of the air flow.

[0056] like Figure 13-14 As shown, the first pressure plate 26 is distributed clockwise or counterclockwise from the air inlet end to the air outlet end, so that the first pressure plate 26 of the first speed increasing air duct 27 guides the airflow in the forward direction or gathers the airflow in the reverse direction to the second speed increasing air duct 31, and the second pressure plate 30 is distributed counterclockwise or clockwise from the air inlet end to the air outlet end, so that the second pressure plate 30 gathers the airflow in the reverse direction or blows it out in the forward direction, thereby achieving the effect of pressurizing and gathering the airflow.

[0057] As a preferred technical solution, in one practicable manner, the first pressure plate 26 is arranged in a clockwise direction and the second pressure plate 30 is arranged in a counterclockwise direction. As the airflow is driven by the fan blades 23, the airflow moves centrifugally along the surrounding directions of the fan blades 23. The setting direction of the first pressure plate 26 of the first speed-increasing air duct 27 is opposite to the direction of the airflow. The first pressure plate 26 gathers the wind moving in the surrounding directions and changes the flow direction of the airflow. The airflow passing through the first speed-increasing air duct 27 is guided to the second speed-increasing air duct 31. The second pressure plate 30 of the second speed-increasing air duct 31 is arranged in a counterclockwise direction. Since the counterclockwise setting of the second pressure plate 30 is the same as the direction of the airflow, the second pressure plate 30 guides the gathered airflow and blows the air through the second speed-increasing air duct 31 out in a forward direction. This avoids the airflow from being dispersed and blown out, resulting in air volume loss, and achieves the effect of wind gathering and pressurization.

[0058] In another feasible embodiment, the first pressure plate 26 is set in a counterclockwise direction and the second pressure plate 30 is set in a clockwise direction. As the airflow passes through the fan blades 23, the airflow moves centrifugally in the directions around the fan blades 23. The setting direction of the first pressure plate 26 of the first speed increasing air duct 27 is the same as the direction of the airflow movement. The first pressure plate 26 will guide and pressurize the wind moving in all directions. Since the clockwise setting of the second pressure is opposite to the direction of the airflow movement, the second pressure plate 30 can gather the airflow and change the flow direction of the airflow, so that the airflow can be blown out from the front when it is blown out, avoiding the airflow being dispersed and causing air volume loss.

[0059] like Figure 12 As shown, the first motor 22 includes a stator 36 and a rotor 37. The stator 36 is fixed to the motor mounting base 25. The rotor 37 is disposed on the fan blades 23 and is sleeved on the stator 36. In practice, the first motor 22 can be a brushed motor or a brushless motor.

[0060] Specifically, the motor mounting seat 25 is provided with a convex column extending axially and hollow inside; the fan blade 23 includes a hub portion and blades evenly arranged on the outer peripheral surface of the hub portion, and the hub portion has a receiving portion recessed inward; the stator 36 includes an iron core inserted on the convex column and a coil wound on the iron core; the rotor 37 includes a rotating shaft axially arranged in the receiving portion and a magnetic ring attached to the radial inner wall of the receiving portion, and the rotating shaft is inserted in the convex column.

[0061] Preferably, as an implementable technical solution, the first motor 22 adopts an outer rotor brushless motor. Structurally, a storage portion is provided on the hub portion of the fan blade 23, and the fan blade 23 is used as the installation position of the rotor 37. The magnetic ring and the rotating shaft of the rotor 37 are set at the storage portion, thereby optimizing the structure and saving the number of components. At the same time, a hollow boss is provided on the motor mounting seat 25 to facilitate the insertion of the rotating shaft into the boss for positioning. At the same time, the iron core and coil of the stator 36 can be sleeved on the boss for positioning. The fan blade 23 is driven by the designed outer rotor 37 brushless motor structure, which can be more compact in structure, save the number of components, and thus reduce costs.

[0062] The present invention includes a driver circuit board 38, which is disposed within the handle 2; a power supply interface 39, which is disposed on the handle 2; and a battery 40, which is disposed within the handle 2. The driver circuit board 38 includes a control circuit for controlling the operation of various electronic components. The power supply interface 39 can be used to charge the battery 40 or to connect it to a charging cable for power supply. The battery 40 can be either a rechargeable battery or a disposable battery, preferably a rechargeable battery.

[0063] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An elastically fixed mixed flow cooling fan, characterized in that: include: a fan head for driving and generating an airflow, and a handle connected to the fan head; The fan head includes an air duct assembly, a fan assembly, and a refrigeration assembly; the air duct assembly has an air inlet and an air outlet; the fan assembly is arranged in the air duct assembly, and the fan assembly is driven to generate airflow; the refrigeration assembly is arranged on the air outlet end face of the air duct assembly, and the refrigeration assembly is used to drive the airflow to cool down; The handle comprises a telescopic clamping assembly, which can be telescopically moved relative to the handle and clamped on an external object for fixation.

2. The elastically fixed mixed flow cooling fan according to claim 1, characterized in that: The refrigeration assembly includes a semiconductor refrigeration plate and a cooling member. The cooling member is connected to the cold surface of the semiconductor refrigeration plate. The semiconductor refrigeration plate drives the air flow to cool down.

3. The elastically fixed mixed flow cooling fan according to claim 1, characterized in that: The telescopic clamping assembly includes a telescopic housing, a telescopic rod, an elastic member, and a base; the telescopic housing is provided with one or more telescopic channels, the telescopic rod is disposed in the telescopic channels, one end of the telescopic rod extends outside the telescopic channels and is connected to the base, and the elastic member is sleeved on the telescopic rod and placed in the telescopic channels; When the base is stretched by an external force, the telescopic rod compresses the elastic member and moves along the telescopic channel, so that the base and the bottom of the handle are clamped on an external object.

4. The elastically fixed mixed flow cooling fan according to claim 3, characterized in that: A protruding first step is provided at the lower portion of the telescopic channel, a protruding second step is provided at the upper portion of the telescopic rod, and the elastic member is placed between the first step and the second step.

5. The elastically fixed mixed flow cooling fan according to claim 1, characterized in that: The fan head is hinged to the handle, and a recessed receiving groove is provided on one side of the upper portion of the handle, and rotating holes are provided on both sides of the receiving groove; a rotating shaft is provided on the outside of the fan head, and the rotating shaft is placed in the receiving groove and connected to the rotating holes.

6. The elastically fixed mixed flow cooling fan according to claim 1, characterized in that: The air duct assembly includes a first shell, a second shell and a third shell; the fan assembly includes a first motor and fan blades; A first shell, wherein the first shell is located at the air inlet end; the first shell includes a first outer ring, a motor mounting seat and one or more first pressure plates; the first motor is arranged on the motor mounting seat; the fan blades are arranged on the output end of the first motor; the first pressure plates are distributed on the inner wall of the first outer ring and extend to connect the outer peripheral edge of the motor mounting seat; the inner wall of the first outer ring, the first pressure plate and the motor mounting seat form a first speed-increasing air duct, and the first speed-increasing air duct is increased by the first pressure plate, resulting in a smaller radial ventilation area, thereby pressurizing and accelerating the airflow; A second shell, the second shell being arranged at the air outlet end of the first shell; the second shell comprising a second outer ring, a boost seat, and one or more second pressurizing sheets; the second pressurizing sheets being distributed on the inner wall of the second outer ring and extending to connect to the outer peripheral edge of the boost seat; the inner wall of the second outer ring, the second pressurizing sheet, and the boost seat forming a second speed-increasing air duct, wherein the radial ventilation area of ​​the second speed-increasing air duct is reduced due to the increase of the second pressurizing sheet, thereby pressurizing and accelerating the airflow; The third shell is arranged at the air outlet end of the second shell; the third shell includes a third outer ring, an air guide seat and one or more third pressure plates; the third pressure plates are distributed on the inner wall of the third outer ring and extend to connect the outer peripheral edge of the air guide seat; the third outer ring, the third pressure plate and the air guide seat form a third speed-increasing air duct, and the third speed-increasing air duct is increased by the third pressure plate, resulting in a smaller radial ventilation area, thereby pressurizing and accelerating the airflow so as to guide the airflow to be blown out.

7. The elastically fixed mixed flow cooling fan according to claim 6, characterized in that: The first pressure plate is distributed clockwise or counterclockwise from the air inlet end to the air outlet end, so that the first pressure plate of the first speed-increasing air duct guides the airflow forward or gathers the airflow in the reverse direction to the second speed-increasing air duct, and the second pressure plate is distributed counterclockwise or clockwise from the air inlet end to the air outlet end, so that the second pressure plate gathers the airflow in the reverse direction or blows it out in the forward direction, thereby achieving the effect of pressurizing and gathering the airflow.

8. The elastically fixed mixed flow cooling fan according to claim 7, characterized in that: The first motor includes a stator and a rotor. The stator is fixed on the motor mounting seat. The rotor is arranged on the fan blades and is sleeved on the stator.

9. The elastically fixed mixed flow cooling fan according to claim 8, characterized in that: The motor mounting seat is provided with a convex column extending in the axial direction and having a hollow interior; The fan blade includes a hub portion and blades evenly arranged on the outer circumference of the hub portion, and the hub portion has a receiving portion that is recessed inwardly; The stator includes an iron core inserted on the protruding column and a coil wound on the iron core; The rotor includes a rotating shaft axially arranged on the receiving portion and a magnetic ring attached to the radial inner wall of the receiving portion, and the rotating shaft is inserted into the protruding column.

10. The elastically fixed mixed flow cooling fan according to claim 9, characterized in that: comprising a driving circuit board, wherein the driving circuit board is disposed in the handle; It includes a power supply interface, which is arranged on the handle; and a battery, which is arranged in the handle.

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