Round-air-port impeller blowing device and round-air-port cooling fan thereof

Abstract

The utility model discloses a round air opening impeller blowing device and a round air opening cooling fan thereof. The left side edge and the right side edge of a front air outlet shell device of the round air opening impeller blowing device are fixedly connected with the adjacent edges of a corresponding left side vertical plate assembly and a corresponding right side vertical plate assembly. The front side of the front air outlet shell device is at least provided with a round air outlet through hole, and a fan cover is fixed to an orifice of the round air outlet through hole. The air conditioner is characterized in that a fan support assembly is fixed between the inner wall of the left vertical plate assembly and the inner wall of the right vertical plate assembly or the fan support assembly is fixed to the inner wall of the front air outlet shell device; a fan motor is fixed to the middle of the fan support assembly, a fan impeller is fixed to a motor shaft of the fan motor, and the fan impeller is arranged in the middle of an inner hole opening of the round air outlet through hole. The cooling fan is reasonable in structural design, the complexity of the structure of an air draft and supply device in the cooling fan is reduced, the production cost is reduced, the fan impeller is close to the outside, and the air volume is large. During high-power work, swinging type torsion vibration cannot be generated, balance is achieved, and automatic displacement cannot be generated.

Description

Technical Field

[0001] This utility model relates to fan components, and more particularly to a circular air outlet impeller blowing device and its circular air outlet refrigerated fan. Background Technology

[0002] Chinese Patent Publication No. CN215295208U discloses a dual-outlet intelligent air cooler. This product includes a floor-standing water tank, a water tray, an inlet / outlet air housing, and a top cover. Symmetrical upper and lower layers of side air inlets are provided on both the left and right sides of the inlet / outlet air housing, and symmetrical upper and lower layers of side wet curtain devices are provided on the inner walls of the opposite left and right sides. A rear air inlet is provided on the rear side of the inlet / outlet air housing, and a rear wet curtain device is provided on the opposite rear inner wall. A motor support plate is fixed in the middle of the air cavity, dividing the air cavity into an upper air cavity and a lower air cavity, which correspond to the upper and lower air outlets, respectively. Corresponding upper impeller, lower impeller, upper volute, and lower volute are respectively arranged at both ends of the dual-shaft motor, corresponding to the upper and lower air cavity. This also separates the air intake into two layers, each entering the upper and lower air cavity respectively, and then blowing out from the corresponding upper and lower air outlets.

[0003] The above-mentioned product is the closest existing technology. The structure of the dual-outlet intelligent air cooler adopts a dual-output shaft motor. The two ends of the dual-output shaft motor are respectively equipped with an upper impeller, a lower impeller, an upper volute, and a lower volute, which belongs to the dual-output shaft fan structure. Its internal structure is complex and the manufacturing cost is high. When working at high power, the dual-output shaft motor drives the upper and lower impellers with high torque, and the air cooler will have a swinging vibration. If the ground is uneven, it is easily affected by the vibration and will automatically slide to a lower place, resulting in a poor user experience. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a circular air outlet impeller blowing device and its circular air outlet evaporator with a reasonable structural design, which reduces the complexity of the internal air extraction and air supply device of the evaporator and reduces the production cost. The impeller is centrally arranged at the inner opening of the circular air outlet hole, and the impeller is relatively close to the outside, resulting in a large air volume.

[0005] The solution to the above technical problem is as follows:

[0006] A circular air outlet impeller blowing device includes a front air outlet shell device, a left vertical plate assembly, a right vertical plate assembly, a fan bracket assembly, a fan motor, an impeller, and a fan cover. The left and right sides of the front air outlet shell device are fixedly connected to the adjacent sides of the corresponding left and right vertical plate assemblies. The front air outlet shell device has at least one circular air outlet hole on its front side, and a fan cover is fixed to the opening of the circular air outlet hole. The device is characterized in that: a fan bracket assembly is fixed between the inner walls of the left and right vertical plate assemblies or the inner wall of the front air outlet shell device; a fan motor is fixed in the middle of the fan bracket assembly; an impeller is fixed to the motor shaft of the fan motor; and the impeller is centrally located at the inner opening of the circular air outlet hole.

[0007] The beneficial effects of this utility model of a circular air outlet impeller blowing device and its circular air outlet evaporator are as follows: 1. The product has a reasonable structural design, reducing the complexity of the internal air extraction and air delivery device structure of the evaporator, reducing production costs, facilitating worker installation, simplifying assembly, and reducing the overall weight. The impeller is centrally located at the inner opening of the circular air outlet, making it relatively close to the outside environment and resulting in a large air volume. 2. The fan bracket assembly is integrally injection molded, achieving high production efficiency and low manufacturing costs. It is sturdy, robust, vibration-free during operation, and easy to assemble. 3. Ventilation holes are provided at the four corners (upper left, lower left, upper right, and lower right) of the outer peripheral wall of the circular air outlet for air intake and exhaust, preventing air accumulation and vortex formation in the corners of the evaporator, and reducing noise. 4. This product prevents the evaporator from producing swinging torsional vibrations during high-power operation, maintaining balance and preventing automatic displacement. Attached Figure Description

[0008] Figure 1 , Figure 2 , Figure 3 This is a schematic diagram of the structural connection of the circular air outlet impeller blowing device of this utility model.

[0009] Figure 4 This is a schematic diagram showing the structural connection of the front air outlet housing, fan bracket assembly, fan motor, and impeller of the present invention.

[0010] Figure 5 , Figure 6 This is an exploded view of the circular air outlet impeller blowing device of this utility model.

[0011] Figure 7 , Figure 8 , Figure 9 This is an exploded view of the air cooler of this utility model product;

[0012] Figure 10 , Figure 11 , Figure 12 , Figure 13 This is a perspective view of the air cooler of this utility model.

[0013] Figure 14 This is a front view of the air cooler of this utility model product;

[0014] Figure 15 This is a perspective view of the air cooler of this utility model.

[0015] Figure 16 This is a front view of the air cooler of this utility model product;

[0016] Figure 17 This is a perspective view of the air cooler of this utility model.

[0017] Figure 18 This is a front view of the air cooler of this utility model.

[0018] Front air outlet housing 1, round air outlet hole 11, plastic front air outlet housing 101, inner wall step of the perforated ring 12, ventilation hole 13, left vertical plate assembly 2, left air inlet hole assembly 21, right vertical plate assembly 3, right air inlet hole assembly 31, fan bracket assembly 4, motor mounting plate 41, arched support foot 42, motor mounting hole 43, fan motor 5, fan impeller 6, fan cover 7, top cover 8, function controller 9, rear air inlet mesh 10, chassis 10A, bottom box 10B. Detailed Implementation

[0019] like Figures 1 to 18As shown: A circular air outlet impeller blowing device includes a front air outlet housing 1, a left vertical plate assembly 2, a right vertical plate assembly 3, a fan bracket assembly 4, a fan motor 5, an impeller 6, and a fan cover 7. The left and right sides of the front air outlet housing 1 are fixedly connected to the adjacent sides of the corresponding left vertical plate assembly 2 and right vertical plate assembly 3. The front air outlet housing 1 has at least one circular air outlet hole 11 on its front side. The opening of the circular air outlet hole 11 is fixed to the fan cover 7 by screws or fasteners. The fan cover 7 is used to protect the impeller 6, prevent people from putting their hands inside, and ensure safe use. The fan cover 7 is integrally injection molded. The fan bracket assembly 4 or the inner wall of the front air outlet housing 1 is fixed between the inner wall of the left vertical plate assembly 2 and the inner wall of the right vertical plate assembly 3. A fan bracket assembly 4 is provided, and either of the two aforementioned fixing structures is acceptable (i.e., the fan bracket assembly 4 is fixed between the inner wall of the left vertical plate assembly 2 and the inner wall of the right vertical plate assembly 3 by a screw assembly, or the fan bracket assembly 4 is fixed to the inner wall of the front air outlet housing 1 by a screw assembly); a fan motor 5 is fixed to the middle of the fan bracket assembly 4 by a screw assembly, and the fan motor 5 is a DC motor or an AC motor; the motor shaft of the fan motor 5 is fixed to the impeller 6 by a nut, and the diameter of the impeller 6 is slightly smaller than the diameter of the circular air outlet hole 11, and the impeller 6 is centrally located at the inner opening of the circular air outlet hole 11; during operation, the fan motor 5 rotates, and the impeller 6 rotates to draw air from the rear, which is then blown out through the circular air outlet hole 11 and the fan cover 7. This product has a reasonable structural design, which reduces the complexity of the internal air extraction and air supply devices of the air cooler, reduces production costs, makes it easy for workers to install and assemble, and reduces the weight of the whole machine. The impeller 6 is centrally located at the inner opening of the circular air outlet 11. The impeller 6 is relatively close to the outside, and its air volume is large.

[0020] Preferably, the front air outlet housing 1 has two circular air outlet holes 11 on its front side, arranged in an upper and lower layer. A fan cover 7 is fixed to the opening of each circular air outlet hole 11. Two fan bracket assemblies 4 are fixed between the inner wall of the left vertical plate assembly 2 and the inner wall of the right vertical plate assembly 3, or two fan bracket assemblies 4 are fixed to the inner wall of the front air outlet housing 1. The two fan bracket assemblies 4 are arranged in an upper and lower layer. A fan motor 5 is fixed in the middle of each fan bracket assembly 4. An impeller 6 is fixed to the motor shaft of each fan motor 5. The two impellers 6 are respectively centrally arranged at the inner openings of the corresponding two circular air outlet holes 11. In this way, the power of the cooling fan can be increased, the working air volume can be enhanced, and the air can be blown farther and over a larger area.

[0021] Preferably, the fan bracket assembly 4 is integrally injection molded, achieving high production efficiency in one step. The fan bracket assembly 4 includes a motor mounting plate 41 and four arched legs 42, forming a claw-like structure. The four arched legs 42 are arranged forward, and the motor mounting plate 41 is fixedly connected to the base of the four arched legs 42 in four directions. The ends of the four arched legs 42 are fixedly connected to the inner wall of the front air outlet housing 1 using screw assemblies. The fan motor 5 is fixed to the middle of the motor mounting plate 41 using screw assemblies. This fan bracket assembly 4 has low manufacturing cost, high production efficiency, is sturdy and robust, operates without vibration, and is easy to assemble.

[0022] Preferably, the motor mounting plate 41 has a motor mounting hole 43 in the middle, and the fan motor 5 is fixed through the motor mounting hole 43 and fixed with screws to improve the installation stability of the motor.

[0023] Preferably, the front air outlet housing 1 is an integrally injection-molded plastic front air outlet housing 101, and the plastic front air outlet housing 101 has a square outline. That is, the ends of the four arched support legs 42 are fixedly connected to the inner wall of the plastic front air outlet housing 101. A circular air outlet hole 11 is provided on the front side of the plastic front air outlet housing 101, and the circular air outlet hole 11 is integrally formed with the plastic front air outlet housing 101.

[0024] Preferably, the inner wall of the outer opening of the circular air outlet 11 is provided with an inner wall step 12 of a perforated ring, and a fan cover 7 is embedded and fixed at the inner wall step 12 of the perforated ring. The two are connected by screws and / or clips. The inner wall step 12 of the perforated ring is integrally formed with the plastic front air outlet shell 101.

[0025] Preferably, the side wall of the left vertical plate assembly 2 is provided with a left air inlet hole group 21 for air intake from the left side to increase the air intake volume; the side wall of the right vertical plate assembly 3 is provided with a right air inlet hole group 31 for air intake from the right side to increase the air intake volume; ventilation holes 13 are provided at the four corners of the outer peripheral wall of the circular air outlet hole 11 at the upper left, lower left, upper right and lower right for air intake and exhaust, to prevent air accumulation and vortex formation in the corners of the cooler fan, and to reduce noise.

[0026] Preferably, the left vertical plate assembly 2 consists of two plastic left vertical plates, which are vertically stacked and connected and reinforced with screws; the right vertical plate assembly 3 consists of two plastic right vertical plates, which are vertically stacked and connected and reinforced with screws.

[0027] A circular air outlet fan includes a circular air outlet impeller blowing device as described above. The circular air outlet impeller blowing device includes a front air outlet housing 1, a left vertical plate assembly 2, a right vertical plate assembly 3, a fan bracket assembly 4, a fan motor 5, a fan impeller 6, and a fan cover 7. The left and right sides of the front air outlet housing 1 are fixedly connected to the adjacent sides of the corresponding left vertical plate assembly 2 and right vertical plate assembly 3. The front air outlet housing 1 has two circular air outlet holes 11 on its front side, arranged vertically. A fan cover 7 is fixed to the opening of each circular air outlet hole 11. Two fan bracket assemblies 4 are fixed to the inner wall of the front air outlet housing 1, arranged vertically. A fan motor is fixed to the middle of each fan bracket assembly 4. The fan motor 5 has a fan impeller 6 fixed to its motor shaft. The two fan impellers 6 are centrally located at the inner openings of the corresponding two circular air outlet holes 11. The top of the front air outlet shell device 1, the left vertical plate assembly 2, and the right vertical plate assembly 3 are fixedly connected to the top cover 8 by screws. The front wall of the top cover 8 is fixed with a function controller 9, which is connected to the fan motor 5 by wires. The rear air inlet mesh 10 is connected between the rear edges of the left vertical plate assembly 2 and the right vertical plate assembly 3. When the fan motor 5 drives the fan impeller 6 to rotate, it is used to draw air from the rear. The bottom of the left vertical plate assembly 2, the right vertical plate assembly 3, and the front air outlet shell device 1 is fixedly connected to the chassis 10A by screws. The bottom box 10B is connected to the bottom of the chassis 10A.

Claims

1. A circular air outlet impeller blowing device, comprising a front air outlet housing, a left vertical plate assembly, a right vertical plate assembly, a fan bracket assembly, a fan motor, an impeller, and a fan cover, wherein the left and right sides of the front air outlet housing are fixedly connected to the adjacent sides of the corresponding left and right vertical plate assemblies; the front air outlet housing has at least one circular air outlet hole on its front side, and a fan cover is fixed to the opening of the circular air outlet hole, characterized in that: A fan bracket assembly is fixed between the inner wall of the left vertical plate assembly and the inner wall of the right vertical plate assembly, or a fan bracket assembly is fixed between the inner walls of the front air outlet shell device. A fan motor is fixed in the middle of the fan bracket assembly, and a fan impeller is fixed to the motor shaft of the fan motor. The fan impeller is centrally located at the inner opening of the circular air outlet hole.

2. The circular air outlet impeller blowing device according to claim 1, characterized in that: The front of the front air outlet housing has two circular air outlet holes, which are arranged in an upper and lower layer. A fan cover is fixed to the opening of each circular air outlet hole. Two fan bracket assemblies are fixed between the inner walls of the left vertical plate assembly and the inner walls of the right vertical plate assembly, or two fan bracket assemblies are fixed to the inner wall of the front air outlet housing. The two fan bracket assemblies are arranged in an upper and lower layer. A fan motor is fixed in the middle of each fan bracket assembly. An impeller is fixed to the motor shaft of each fan motor. The two impellers are respectively arranged in the center at the inner opening of the corresponding two circular air outlet holes.

3. A circular air outlet impeller blowing device according to claim 1 or 2, characterized in that: The fan bracket assembly includes a motor mounting plate and four arched legs. The four arched legs are arranged forward, and the base of the four arched legs is fixedly connected to the motor mounting plate in four directions. The ends of the four arched legs are fixedly connected to the inner wall of the front air outlet housing. The fan motor is fixed in the middle of the motor mounting plate.

4. The circular air outlet impeller blowing device according to claim 3, characterized in that: The motor mounting plate has a motor mounting hole in the middle, and a fan motor is fixed at the motor mounting hole.

5. A circular air outlet impeller blowing device according to claim 1 or 2, characterized in that: The front air outlet housing is a one-piece injection-molded plastic front air outlet housing with a square outline.

6. The circular air outlet impeller blowing device according to claim 5, characterized in that: The inner wall of the outer opening of the circular air outlet is provided with a stepped inner wall ring, and a fan cover is embedded and fixed at the stepped inner wall ring.

7. A circular air outlet impeller blowing device according to claim 1 or 2, characterized in that: The left vertical plate assembly has a left air inlet hole group on its side wall; the right vertical plate assembly has a left air inlet hole group on its side wall; ventilation holes are provided at the four corners of the outer peripheral wall of the circular air outlet hole, namely the upper left, lower left, upper right, and lower right corners.

8. The circular air outlet impeller blowing device according to claim 7, characterized in that: The left vertical plate assembly consists of two plastic left vertical plates, which are vertically stacked and connected and fixed; the right vertical plate assembly consists of two plastic right vertical plates, which are vertically stacked and connected and fixed.

9. The circular air outlet impeller blowing device according to claim 3, characterized in that: The fan bracket assembly is integrally injection molded.

10. A round-vented air cooler, characterized in that: It includes a circular air outlet impeller blowing device as described in any one of claims 1 to 9.

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