Double-air-duct turbofan

Abstract

The utility model discloses a double-air-duct turbofan which comprises a shell, an air outlet and a partition piece are arranged on the outer side of the shell, and the partition piece divides the air outlet into a first air outlet and a second air outlet which are isolated from each other up and down; first and second air inlets are respectively formed in the upper and lower ends of the shell; the motor assembly is mounted in the shell; the turbine fan blade is installed on the motor assembly, a partition plate is arranged in the middle of the turbine fan blade, and the turbine fan blade is divided into an upper turbine fan body and a lower turbine fan body which correspond to the first air inlet and the second air inlet respectively through the partition plate; the partition plate corresponds to the partition piece, and a first air channel is formed among the first air inlet, a first airflow channel in the upper turbine fan body and the first air outlet. A second air channel separated from the first air channel is formed among the second air inlet, a second airflow channel in the lower turbine fan body and the second air outlet. Double air inlet and double air outlet can be achieved through the first air channel and the second air channel which are separated from each other, and the function and the effect of two turbofans are achieved through one turbofan.

Description

Technical Field:

[0001] The utility model relates to the technical field of fan products, and particularly refers to a double-duct turbo fan. Background Art:

[0002] Turbo fans, also known as centrifugal fans, are commonly found in the field of personal computer cooling. Small centrifugal fans are habitually referred to as turbo fans. The gas flow direction of a turbo fan is perpendicular to the rotating shaft.

[0003] Chinese Utility Model Patent No. ZL202320025633.2 discloses a turbo fan. The turbo fan includes a lower housing and a front housing that are snap-connected. A first accommodation cavity and a second accommodation cavity are provided in the lower housing. A battery is provided in the first accommodation cavity, and a motor electrically connected to the battery is provided in the second accommodation cavity. The motor is installed with a turbo impeller through a magnetic ring. The turbo impeller intakes air from the front and discharges air from the four peripheral edges. An air outlet is provided at the bottom of the second accommodation cavity, and an air inlet is provided on the front housing. The air inlet is located directly above the turbo impeller.

[0004] The above-mentioned turbo fan has the following problems: When the turbo fan works, air enters through the air inlet on the front housing and exits through the air outlet at the bottom of the lower housing. However, the turbo fan can only intake air from the air inlet in one direction and discharge air from one air outlet, that is, a single air duct is formed. In other words, a turbo fan has only one air duct, and its air volume is limited, which cannot meet the requirements of high air volume usage, nor can it meet the requirements of double-way air intake and double-outlet air discharge.

[0005] In view of this, the inventor of the present invention proposes the following technical solutions. Summary of the Utility Model:

[0006] The purpose of the present utility model is to overcome the deficiencies of the prior art and provide a double-duct turbo fan.

[0007] To solve the above technical problems, the present utility model adopts the following technical solutions: The double-duct turbo fan includes: a housing, on the outside of which an air outlet and a partition are provided in the air outlet. The partition divides the air outlet into an upper and lower isolated first air outlet and second air outlet; a first air inlet and a second air inlet are respectively provided at the upper and lower ends of the housing; a motor assembly, which is installed inside the housing; a turbo impeller, which is installed on the motor assembly and is located inside the housing. A partition is provided in the middle of the turbo impeller, and the turbo impeller is divided into an upper turbo impeller body and a lower turbo impeller body corresponding to the first air inlet and the second air inlet respectively by the partition; the partition corresponds to the partition, and a first air duct is formed between the first air inlet, the first air flow channel in the upper turbo impeller body, and the first air outlet; a second air duct separated from the first air duct is formed between the second air inlet, the second air flow channel in the lower turbo impeller body, and the second air outlet.

[0008] Furthermore, in the above technical solution, the rear end of the separator plate is extended backward to form an annular extension plate, the outer edge of the annular extension plate is integrally connected to the inner wall of the shell, and the annular extension plate is provided with a circular hole for the turbine blade to pass through.

[0009] Furthermore, in the above technical solution, the shell includes an upper shell and a lower shell stacked and fixed together, the motor assembly is installed on the lower shell, and the partition plate is integrally formed at the lower end portion of the upper shell to form the first air outlet on the outside of the upper shell. A groove is provided on the outside of the lower shell, and the partition plate covers the upper end of the groove to form the second air outlet.

[0010] Furthermore, in the above technical solution, a flange is provided on the outer side of the upper end of the lower shell, and a slot is provided on the outer side of the lower end of the upper shell, and the slot is embedded in the flange to form positioning.

[0011] Furthermore, in the above technical solution, a plurality of buckles are provided at the lower end of the upper shell, a guide groove is provided on the inner side of the buckle, and a plurality of undercuts adapted to the buckles are provided at the upper end of the lower shell, and the undercuts pass through the guide groove and are buckled and fixed with the buckles.

[0012] Furthermore, in the above technical solution, the turbine fan blades include a hub assembled with a motor assembly and a plurality of blades integrally formed on the periphery of the hub and spaced apart, the partition is integrally connected between the middle parts of two adjacent blades to separate the blades into a first sheet and a second sheet, the first sheet and the upper end of the partition constitute the upper turbine fan body, the second sheet and the lower end of the partition constitute the upper turbine fan body, a first air flow channel corresponding to the first air inlet is formed between the upper end surface of the partition and the two adjacent first sheets, and a second air flow channel corresponding to the second air inlet is formed between the lower end surface of the partition and the two adjacent second sheets.

[0013] Furthermore, in the above technical solution, the inner side of the partition is integrally connected to the outer periphery of the hub, and the outer side of the partition extends to the outer end of the blade and is flush with the outer end of the blade.

[0014] Furthermore, in the above technical solution, the size of the outer end of the blade is larger than the size of the inner end, and the first sheet body and the second sheet body have the same shape and are distributed in mirror symmetry.

[0015] Furthermore, in the above technical solution, the blades are vertically distributed on the periphery of the hub, and the cross-section of the blades is an inclined J-shape.

[0016] Furthermore, in the above technical solution, a circle of exhaust grooves is provided on the wheel hub.

[0017] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art: When the utility model works, the turbine fan blade is driven by the motor assembly to rotate. During the rotation process of the turbine fan blade, the upper turbine fan body and the lower turbine fan body respectively draw air in from the outside in two directions through the first air inlet and the second air inlet, so that the external air flows into the interior of the housing and is discharged through the first air outlet and the second air outlet respectively to form an air flow. Since the first air inlet and the second air inlet draw air in from the outside in two directions, the air intake volume is large, and at the same time, the air output volume can be enhanced to meet the use requirement of high air volume. That is, the utility model can realize double air intake and double air output through two mutually separated first air ducts and second air ducts, achieving the functions and effects of two turbine fans by one turbine fan. Its structure is simple and compact, and it can effectively reduce costs and improve market competitiveness. At the same time, since the first air inlet and the second air inlet draw air in from the outside in two directions, it can meet the use requirement of two-way air intake, and the air is discharged through the two different air outlets of the first air outlet and the second air outlet to meet the use requirement of independently blowing air at two different positions without air leakage, making the utility model have stronger market competitiveness. Brief Description of the Drawings:

[0018] Figure 1 is a perspective view of the utility model;

[0019] Figure 2 is a perspective view of the utility model from another perspective;

[0020] Figure 3 is an exploded perspective view of the utility model;

[0021] Figure 4 is a sectional view of the utility model;

[0022] Figure 5 is a perspective view of the upper housing of the utility model;

[0023] Figure 6 is a top view of the turbine fan blade of the utility model;

[0024] Figure 7 is a front view of the turbine fan blade of the utility model. Detailed Description of the Invention:

[0025] The following further describes the utility model in conjunction with specific embodiments and the drawings.

[0026] See Figures 1-7 shown, which is a double-duct turbine fan, including: a housing 1, a motor assembly (not shown in the figure), and a turbine fan blade 2.

[0027] An air outlet 13 and a partition piece 14 located in the air outlet 13 are provided on the outer side of the housing 1. The partition piece 14 divides the air outlet 13 into a first air outlet 131 and a second air outlet 132 that are isolated from each other up and down. A first air inlet 15 and a second air inlet 16 are respectively provided at the upper and lower ends of the housing 1. A motor assembly is installed inside the housing 1. A turbine fan blade 2 is installed on the motor assembly and is located inside the housing 1. After being powered on, the motor assembly drives the turbine fan blade 2 to rotate, which is a conventional technology. A partition plate 20 is provided in the middle of the turbine fan blade 2. The partition plate 20 divides the turbine fan blade 2 into an upper turbine fan body 21 and a lower turbine fan body 22 corresponding to the first air inlet 15 and the second air inlet 16 respectively. The partition plate 20 corresponds to the partition piece 14, and a first air duct is formed between the first air inlet 15, a first air flow channel 211 in the upper turbine fan body 21, and the first air outlet 131. A second air duct separated from the first air duct is formed between the second air inlet 16, a second air flow channel 221 in the lower turbine fan body 22, and the second air outlet 132.

[0028] The main improvements made in the present utility model are as follows: First, a first air inlet 15 and a second air inlet 16 are respectively provided at the upper and lower ends of the housing 1, and the partition piece 14 is used to divide the air outlet 13 into a first air outlet 131 and a second air outlet 132 that are isolated from each other up and down. At the same time, a partition plate 20 corresponding to the partition piece 14 is provided in the middle of the turbine fan blade 2. The partition plate 20 divides the turbine fan blade 2 into an upper turbine fan body 21 and a lower turbine fan body 22 corresponding to the first air inlet 15 and the second air inlet 16 respectively, and two mutually separated first air ducts and second air ducts are formed. During operation, the motor assembly drives the turbine fan blade 2 to rotate. During the rotation of the turbine fan blade 2, the upper turbine fan body 21 and the lower turbine fan body 22 respectively draw air in from the outside in two directions through the first air inlet 15 and the second air inlet 16, so that external air flows into the inside of the housing 1 and is discharged through the first air outlet 131 and the second air outlet 132 respectively to form an air flow. Since the first air inlet 15 and the second air inlet 16 draw air in from the outside in two directions, the air intake volume is large, and at the same time, the air output volume can be enhanced to meet the use requirements of high air volume. That is, the present utility model can realize double air intake and double air outlet through two mutually separated first air ducts and second air ducts, achieving the functions and effects of two turbine fans with one turbine fan. Its structure is simple and compact, and it can effectively reduce costs and improve market competitiveness. At the same time, since the first air inlet 15 and the second air inlet 16 draw air in from the outside in two directions, the use requirements of two-way air intake can be met, and air is discharged through the two different air outlets of the first air outlet 131 and the second air outlet 132 to meet the use requirements of independently blowing air at two different positions without air leakage, making the present utility model have stronger market competitiveness.

[0029] Among them, the rear end of the separator 14 extends backward to form an annular extension piece 141, the outer edge of the annular extension piece 141 is integrally connected to the inner wall of the shell 1, and the annular extension piece 141 is provided with a circular hole 142 for the turbine blade 2 to pass through, that is, the separator 14 can divide the inner cavity of the shell 1 into two upper and lower cavities distributed up and down, the first air inlet 15 and the second air inlet 16 are respectively connected to the upper cavity and the lower cavity, and the upper turbine fan body 21 and the lower turbine fan body 22 are respectively placed in the upper cavity and the lower cavity.

[0030] The shell 1 includes an upper shell 11 and a lower shell 12 which are stacked and fixed together. The motor assembly is installed on the lower shell 12. The partition plate is integrally formed at the lower end portion of the upper shell 11 so that the first air outlet 131 is formed on the outer side of the upper shell 11. The structure is simple and stable. A groove 121 is provided on the outer side of the lower shell 12. The partition plate 14 covers the upper end of the groove 121 to form the second air outlet 132.

[0031] A flange 122 is disposed on the outer side of the upper end of the lower shell 12 , and a slot 111 is disposed on the outer side of the lower end of the upper shell 11 . The slot 111 is embedded in the flange 122 to form a positioning function.

[0032] The lower end of the upper shell 11 is provided with a plurality of buckles 112, the inner side of the buckle 112 is provided with a guide groove 113, and the upper end of the lower shell 12 is provided with a plurality of undercuts 123 adapted to the buckle 112, and the undercuts 123 pass through the guide groove 113 and are buckled and fixed with the buckle 112.

[0033] The turbine fan blade 2 includes a hub 23 assembled with the motor assembly and a plurality of blades 24 integrally formed on the periphery of the hub 23 and spaced apart. A partition 20 is integrally connected between the middle parts of two adjacent blades 24, so that the blade 24 is divided into a first blade body 241 and a second blade body 242. The first blade body 241 and the upper end of the partition 20 form the upper turbine fan body 21, and the second blade body 242 and the lower end of the partition 20 form the upper turbine fan body 21. A first air flow channel 211 corresponding to the first air inlet 15 is formed between the upper end surface of the partition 20 and two adjacent first blade bodies 241, and a second air flow channel 221 corresponding to the second air inlet 16 is formed between the lower end surface of the partition 20 and two adjacent second blade bodies 242. Specifically, during operation, when the turbine fan blade 2 rotates, the upper first blade body 241 sucks air from the first air inlet 15, and after passing through the first air flow channel 211, it is discharged from the first air outlet 131. At the same time, the lower second blade body 242 sucks air from the second air inlet 16, and after passing through the second air flow channel 221, it is discharged from the second air outlet 132. At this time, the air intake amounts of the first air inlet 15 and the second air inlet 16 can be made the same to meet the usage requirement that the air intake amounts of the first air inlet 15 and the second air inlet 16 are the same.

[0034] The inner side of the partition 20 is integrally connected to the periphery of the hub 23, and the outer side of the partition 20 extends to the outer end of the blade 24 and is flush with the outer end of the blade 24. Its structure is extremely stable, and all the blades 24 are connected together, ensuring that the entire turbine fan blade structure is more stable, has high strength, and a long service life.

[0035] The outer end of the blade 24 is larger than the inner end, and the first blade body 241 and the second blade body 242 have the same shape and are mirror-symmetrically distributed, which has a stronger air suction effect.

[0036] The blades 24 are vertically distributed on the periphery of the hub 23, and the cross-section of the blade 24 is in an inclined J shape.

[0037] A circle of exhaust grooves 231 is provided on the hub 23.

[0038] In summary, during operation, the motor assembly drives the turbine fan blade 2 to rotate. During the rotation of the turbine fan blade 2, the upper turbine fan body 21 and the lower turbine fan body 22 respectively draw air in from the outside to the inside in two directions through the first air inlet 15 and the second air inlet 16, causing external air to flow into the interior of the housing 1 and discharging it through the first air outlet 131 and the second air outlet 132 respectively to form an air flow. Since the first air inlet 15 and the second air inlet 16 draw air in from the outside to the inside in two directions, the air intake volume is large, and at the same time, the air output volume can be enhanced to meet the usage requirements of high air volume. That is, the present utility model can achieve double air intake and double air outlet through two mutually separated first air ducts and second air ducts, achieving the functions and effects of two turbine fans with one turbine fan. Its structure is simple and compact, and it can effectively reduce costs and improve market competitiveness. At the same time, since the first air inlet 15 and the second air inlet 16 draw air in from the outside to the inside in two directions, the usage requirements of two-way air intake can be met, and air is discharged through the two different air outlets, the first air outlet 131 and the second air outlet 132, to meet the usage requirements of independently blowing air at two different positions without air mixing, making the present utility model have stronger market competitiveness.

[0039] Certainly, the above are only specific embodiments of the present utility model and do not limit the scope of implementation of the present utility model. Any equivalent changes or modifications made according to the structures, features, and principles described in the scope of the patent application of the present utility model should be included within the scope of the patent application of the present utility model.

Claims

1. A dual-duct turbo fan, characterized in that: It includes: A shell (1) is provided with an air outlet (13) and a partition (14) located in the air outlet (13) on its outer side, wherein the partition (14) partitions the air outlet (13) into a first air outlet (131) and a second air outlet (132) which are isolated from each other; a first air inlet (15) and a second air inlet (16) are provided at the upper and lower ends of the shell (1), respectively; A motor assembly installed in the housing (1); A turbine blade (2) mounted on the motor assembly and located in the housing (1), wherein a partition (20) is provided in the middle of the turbine blade (2), and the partition (20) separates the turbine blade (2) into an upper turbine fan body (21) and a lower turbine fan body (22) corresponding to the first air inlet (15) and the second air inlet (16), respectively; The partition (20) corresponds to the partition plate (14), and a first air duct is formed between the first air inlet (15), the first air flow channel (211) in the upper turbine fan body (21), and the first air outlet (131); and a second air duct separated from the first air duct is formed between the second air inlet (16), the second air flow channel (221) in the lower turbine fan body (22), and the second air outlet (132).

2. A dual-duct turbofan according to claim 1, characterized in that: The rear end of the separator (14) extends backward to form an annular extension piece (141), the outer edge of the annular extension piece (141) is integrally connected to the inner wall of the shell (1), and the annular extension piece (141) is provided with a circular hole (142) for the turbine blade (2) to pass through.

3. A dual-duct turbofan according to claim 1, characterized in that: The shell (1) comprises an upper shell (11) and a lower shell (12) which are stacked and fixed together. The motor assembly is mounted on the lower shell (12). The partition plate is integrally formed on the lower end portion of the upper shell (11) so that the first air outlet (131) is formed on the outer side of the upper shell (11). A groove (121) is provided on the outer side of the lower shell (12). The partition plate (14) covers the upper end of the groove (121) to form the second air outlet (132).

4. A dual-duct turbofan according to claim 3, characterized in that: A flange (122) is provided on the outer side of the upper end of the lower shell (12), and a clamping groove (111) is provided on the outer side of the lower end of the upper shell (11). The clamping groove (111) is embedded in the flange (122) to form a positioning function.

5. A dual-duct turbofan according to claim 4, characterized in that: The lower end of the upper shell (11) is provided with a plurality of buckles (112), the inner side of the buckle (112) is provided with a guide groove (113), and the upper end of the lower shell (12) is provided with a plurality of undercuts (123) adapted to the buckle (112), and the undercuts (123) pass through the guide groove (113) and are buckled and fixed with the buckle (112).

6. A dual-duct turbofan according to any one of claims 1 to 5, characterized in that: The turbine fan blade (2) includes a hub (23) assembled with a motor assembly and a plurality of blades (24) integrally formed on the periphery of the hub (23) and spaced apart. The partition (20) is integrally connected between the middle parts of two adjacent blades (24) to separate the blades (24) into a first sheet (241) and a second sheet (242). The first sheet (241) and the upper end of the partition (20) constitute the upper turbine fan body (21), and the second sheet (242) and the lower end of the partition (20) constitute the upper turbine fan body (21). A first air flow channel (211) corresponding to the first air inlet (15) is formed between the upper end surface of the partition (20) and the two adjacent first sheets (241), and a second air flow channel (221) corresponding to the second air inlet (16) is formed between the lower end surface of the partition (20) and the two adjacent second sheets (242).

7. A dual-duct turbofan according to claim 6, characterized in that: The inner side of the partition (20) is integrally connected to the outer periphery of the hub (23), and the outer side of the partition (20) extends to the outer end of the blade (24) and is flush with the outer end of the blade (24).

8. The dual-duct turbofan according to claim 6, characterized in that: The size of the outer end of the blade (24) is larger than the size of the inner end, and the first sheet (241) and the second sheet (242) have the same shape and are distributed in mirror symmetry.

9. The dual-duct turbofan according to claim 6, characterized in that: The blades (24) are vertically distributed on the periphery of the hub (23), and the cross section of the blades (24) is in an inclined J-shape.

10. The dual-duct turbofan according to claim 6, characterized in that: The wheel hub (23) is provided with a circle of exhaust grooves (231).

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