A supercharging fan

Abstract

The utility model provides a kind of booster fan, for installing at the air outlet position of central air conditioning, including front panel and back cover, front panel is formed with first vent, and one side is formed with support platform, and multiple first clamping slots are provided along support platform;Multiple guide plates are arranged along support platform, and guide plate includes guide vane and shaft, and the shaft of both ends of guide vane is embedded in the coaxial two first clamping slots of different support platform;The same end of each guide plate in first vent is connected with a linkage rod, and fixedly connected with swing arm on shaft, and the end of swing arm away from shaft is fixedly connected with cylindrical clamping table;Multiple arc-shaped second clamping slots are equidistantly distributed on the length direction of linkage rod, and clamping table is clamped into second clamping slot under the condition that guide plate is connected with linkage rod.The utility model's booster fan, by introducing adjustable guide plate, the wind direction and ventilation area adjustment of air outlet are realized, to improve the overall use experience of whole house user.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning equipment technology, specifically to a booster fan. Background Technology

[0002] To address the issue of insufficient air supply capacity / inadequate air volume in central air conditioning systems, booster fans installed at the air outlets of central air conditioning units have emerged on the market. However, existing booster fans only consider compensating for the air supply capacity of the central air conditioning system without guiding the airflow direction. They still utilize the fixed-angle deflectors originally provided with the central air conditioning system, making it impossible to flexibly adjust the airflow direction. Furthermore, installing booster fans at the air outlets of central air conditioning systems can easily disrupt the pressure balance of HVAC ducts. While the airflow in the current room increases, it may cause air to be drawn back into other rooms, affecting the user experience of other users throughout the house. In summer, it may also create humid air or even condensation inside the ducts, leading to duct moisture pollution and potential air health hazards.

[0003] Therefore, it is necessary to design a booster fan that can increase the air volume at the central air conditioning outlet while solving the problems of adjusting the airflow direction and ensuring the user experience of other room users. Utility Model Content

[0004] This utility model embodiment provides a booster fan to solve the problem in the prior art where installing a booster fan at the air outlet of a central air conditioning unit can easily affect the pressure balance of the HVAC ducts and affect the user experience of users in other rooms.

[0005] To achieve the above objectives, the present invention adopts the following technical solutions:

[0006] A booster fan is used to install at the air outlet of a central air conditioner. It includes a front panel and a rear cover that can be interlocked. A first ventilation hole is formed on the front panel. A support platform is formed on the side of the front panel near the rear cover that is symmetrically distributed on both sides of the first ventilation hole. Multiple arc-shaped first slots are provided at equal intervals along the extension direction of the support platform.

[0007] Multiple guide plates are arranged along the extension direction of the support platform. Each guide plate includes strip-shaped guide vanes and cylindrical shafts coaxially distributed at both ends of the guide vanes. The shafts at both ends of the guide vanes are respectively fitted into two coaxial first slots on different support platforms.

[0008] A second ventilation hole is formed on the rear cover plate, which is located corresponding to the first ventilation hole. A fan with the air blowing direction facing the corresponding first ventilation hole is detachably installed in the second ventilation hole.

[0009] Each guide plate in the first ventilation hole is connected to a linkage rod at the same end. A swing arm is fixedly connected to the shaft. A cylindrical clamp is fixedly connected to the end of the swing arm away from the shaft, and the axis of the clamp is parallel to the axis of the shaft.

[0010] The linkage rod has multiple arc-shaped second slots evenly distributed along its own length. When the guide plate is connected to the linkage rod, the mounting plate is inserted into the second slot.

[0011] When each guide plate in the first ventilation hole rotates until the guide vanes on the adjacent guide plates are all in contact with each other, the guide plate closes the first ventilation hole.

[0012] Furthermore, multiple first ventilation holes are formed on the front panel, and the multiple first ventilation holes are distributed sequentially along the length direction of the front panel. Multiple second ventilation holes are formed on the rear cover, and the number is the same as that of the first ventilation holes. The position of each second ventilation hole corresponds to each first ventilation hole.

[0013] Furthermore, the opening of the second slot has a notch with a gap width smaller than the diameter of the card platform.

[0014] Furthermore, a dial wheel coaxial with the shaft is fixedly connected to the end of one of the guide plates inside the first ventilation hole, and an operating hole is formed on the front panel, through which the dial wheel extends out of the front panel.

[0015] Furthermore, one end of one of the guide vanes inside the first ventilation hole is connected to a motor that can control the rotation of the guide vane.

[0016] Furthermore, the cross-section of the guide vane is spindle-shaped.

[0017] Furthermore, a display screen and operation buttons are provided on the side of the front panel opposite to the rear cover.

[0018] Furthermore, limit pads are provided at both ends of the guide plate, and the distance between the two limit pads on the guide plate is the same as the distance between the support platforms on both sides of the first ventilation hole;

[0019] The rear cover has a limiting platform on the side facing the front panel that corresponds to the position of the support platform. When the rear cover is fastened to the front panel, the limiting platform abuts against the support platform.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model of a booster fan, by introducing an adjustable guide plate, enables flexible adjustment of the airflow direction at the air outlet, and also allows for adjustment of the ventilation area of ​​the air outlet. When the booster fan is running in the current room, the ventilation area of ​​the air outlets of booster fans installed in other rooms can be adjusted to achieve efficient airflow blocking, avoiding backflow problems in other rooms, thereby improving the overall user experience for all users in the house. Attached Figure Description

[0022] Figure 1 A 3D view of the booster fan;

[0023] Figure 2 A 3D view of the booster fan from another angle;

[0024] Figure 3 Rear view after the rear cover is hidden from the booster fan;

[0025] Figure 4 for Figure 3 Sectional view of section AA;

[0026] Figure 5 for Figure 4 A magnified view of part B in the middle section;

[0027] Figure 6 for Figure 4 A magnified view of part C in the middle;

[0028] Figure 7 This is a 3D view of the rear cover.

[0029] Figure 8 This is a 3D view of the air deflector;

[0030] Figure 9 This is a front view of the linkage.

[0031] Figure 10 This is an assembly diagram of the air deflector, dial, linkage rod, and front panel.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Front panel; 11. First ventilation hole; 12. Operating hole; 13. Support platform; 131. First slot; 14. Mounting hole; 15. Display screen; 16. Operating buttons; 2. Rear cover; 21. Second ventilation hole; 22. Limiting platform; 3. Guide plate; 31. Guide vane; 32. Shaft; 33. Locking platform; 34. Swing arm; 35. Tenon; 36. Limiting pad; 4. Dial wheel; 41. Tenon hole; 5. Linkage rod; 51. Second slot; 52. Notch; 6. Fan. Detailed Implementation

[0034] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0035] The booster fan provided by this utility model is installed at the air outlet of a central air conditioning system to pressurize and deliver cold / hot air from the central air conditioning ducts into the room, thereby improving the indoor cooling / heating efficiency. Figure 1-10As shown, the booster fan provided by this utility model includes a front panel 1 and a rear cover 2 that can be interlocked. A first ventilation hole 11 is formed on the front panel 1. A support platform 13 is formed on the side of the front panel 1 near the rear cover 2, symmetrically distributed on both sides of the first ventilation hole 11. A plurality of arc-shaped first slots 131 are equally spaced along the extending direction of the support platform 13. A plurality of guide plates 3 are arranged along the extending direction of the support platform 13. The guide plate 3 includes strip-shaped guide vanes 31 and coaxially distributed on both sides of the guide vanes 31. The cylindrical shaft 32 at one end and the shaft 32 at both ends of the guide vane 31 are respectively fitted into two coaxial first slots 131 on different support platforms 13, so that the guide plate 3 is rotatably installed in the first ventilation hole 11. The direction of the air blown out from the first ventilation hole 11 can be adjusted by adjusting the rotation of the guide plate 3. A second ventilation hole 21 is formed on the rear cover plate 2, which corresponds to the first ventilation hole 11. A fan with the air blowing direction facing the corresponding first ventilation hole 11 is detachably installed in the second ventilation hole 21.

[0036] As a major improvement of this utility model, in order to achieve the linkage control of multiple guide plates 3, a linkage rod 5 is connected to the same end of each guide plate 3 in the first ventilation hole 11, so that the synchronous movement of multiple guide plates 3 can be achieved through the linkage rod 5; specifically, a swing arm 34 is fixedly connected to the shaft 32, and a cylindrical clamping platform 33 is fixedly connected to the end of the swing arm 34 away from the shaft 32, and the axis of the clamping platform 33 is parallel to the axis of the shaft 32; multiple arc-shaped second clamping slots 51 are evenly distributed along the length direction of the linkage rod 5, and the guide plates 3 When connected to the linkage rod 5, the locking platform 33 is engaged in the second locking slot 51. Furthermore, the diameter of the second locking slot 51 is adapted to the locking platform 33, allowing the locking platform 33 to rotate when embedded in the second locking slot 51. Thus, by simply rotating one of the guide plates 3, the guide plate 3 will pull the linkage rod 5 to move, thereby causing the locking platforms 3 on each guide plate 3 to rotate. When each guide plate 3 rotates until the guide vanes 31 on the adjacent guide plates 3 are all in abutting state, the guide plates 3 close the first ventilation hole 11.

[0037] To achieve more precise control of the airflow direction, in a further improved embodiment of this utility model, multiple first ventilation holes 11 are formed on the front panel 1, and the multiple first ventilation holes 11 are distributed sequentially along the length direction of the front panel. Multiple second ventilation holes 21 are formed on the rear cover 2, and the number is the same as that of the first ventilation holes 11. The position of each second ventilation hole 21 corresponds to each first ventilation hole 11. That is, a set of guide plates 3 are provided in each first ventilation hole 11, and the linkage rods 5 connected to each set of guide plates 3 are different, thereby realizing independent control of each first ventilation hole 11.

[0038] In order to prevent the linkage rod 5 from disengaging during operation, in a preferred embodiment of the present invention, the opening of the second slot 51 is formed with a notch 52 whose gap width is smaller than the diameter of the slot 33.

[0039] In a preferred embodiment of this utility model, a dial 4 coaxial with the shaft 32 is fixedly connected to the end of one of the guide plates 3 inside the first ventilation hole 11, and an operation hole 12 is formed on the front panel 1. The dial 4 extends out of the front panel through the operation hole 12, so that the user can operate and adjust the rotation of the guide plate 3 by turning the dial 4 (specifically, in Figure 10 In the specific embodiment shown, a tenon hole 41 is formed on the dial wheel 4, and a tenon 35 is fixedly connected to the end of the guide plate 3 for connecting the dial wheel 4. The dial wheel 4 and the guide plate 3 are fixedly connected by the tenon 35 and the tenon hole 41.

[0040] In another embodiment of controlling the rotation of the guide vane 3, a motor is connected to one end of the guide vane 3, and the rotation of the guide vane 3 is controlled by the motor.

[0041] Furthermore, adjusting the rotation angle of each guide plate 3 also adjusts the ventilation area of ​​the first vent 11. When each guide plate 3 rotates to make the adjacent guide blades 31 on the adjacent guide plates 3 come into contact, the ventilation area of ​​the first vent 11 reaches the minimum value, achieving efficient airflow blocking. The first vent 11 is close to a closed state. In order to improve the degree of airflow blocking when the guide plates 3 come into contact with each other, in a preferred embodiment of this utility model, the cross-section of the guide blades 31 is spindle-shaped.

[0042] To facilitate human-computer interaction, in a preferred embodiment of this utility model, a display screen 15 and operation buttons 16 are provided on the side of the front panel 1 away from the rear cover 2. The display screen 15 is used to display environmental information (such as temperature and humidity) and the working status of the booster fan (on / off status, air volume).

[0043] To reduce the possible directional deviations that may occur during the rotation of the guide plate 3, i.e., to restrict the degree of freedom of the guide plate 3 other than rotation, limit pads 36 are provided at both ends of the guide plate 3. The distance between the two limit pads 36 on the guide plate 3 is the same as the distance between the support platforms 13 on both sides of the first ventilation hole 11. A limit platform 22 is formed on the side of the rear cover plate 2 facing the front panel 1, which corresponds to the position of the support platform 13. When the rear cover plate 2 is fastened and installed with the front panel 1, the limit platform 22 abuts against the support platform 13, i.e., the limit platform 22 restricts the shaft 32 in the first slot 131.

[0044] To improve the reliability of the booster fan when installed on a wall, in one embodiment, the booster fan is provided with at least two mounting holes 14 that penetrate the front panel 1 and the rear cover 2. After the booster fan is installed in place, the booster fan can be reliably fixed by inserting studs, screws and other fasteners into the mounting holes.

[0045] This utility model of a booster fan, by introducing an adjustable guide plate, achieves flexible adjustment of the airflow direction at the air outlet and allows for adjustment of the ventilation area at the air outlet. When the booster fan is running in the current room, it can effectively block the airflow at the air outlets of booster fans installed in other rooms, preventing backflow problems in other rooms and thus improving the overall user experience for all users in the house.

[0046] The embodiments described above merely illustrate the implementation of this utility model, and should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A booster fan, used for installation at the air outlet of a central air conditioning unit, characterized in that, It includes a front panel (1) and a rear cover plate (2) that can be interlocked. A first ventilation hole (11) is formed on the front panel (1). A support platform (13) is formed on the side of the front panel (1) near the rear cover plate (2) and is symmetrically distributed on both sides of the first ventilation hole (11). Multiple arc-shaped first slots (131) are provided at equal intervals along the extension direction of the support platform (13). Multiple guide plates (3) are arranged along the extension direction of the support platform (13). Each guide plate (3) includes strip-shaped guide vanes (31) and cylindrical shafts (32) coaxially distributed at both ends of the guide vanes (31). The shafts (32) at both ends of the guide vanes (31) are respectively fitted into two coaxial first slots (131) on different support platforms (13). A second ventilation hole (21) is formed on the rear cover plate (2) and its position corresponds to the first ventilation hole (11). A fan with the blowing direction facing the corresponding first ventilation hole (11) is detachably installed in the second ventilation hole (21). Each guide plate (3) in the first ventilation hole (11) is connected to a linkage rod (5) at the same end. A swing arm (34) is fixedly connected to the shaft (32). A cylindrical clamp (33) is fixedly connected to the end of the swing arm (34) away from the shaft (32), and the axis of the clamp (33) is parallel to the axis of the shaft (32). The linkage rod (5) has multiple arc-shaped second slots (51) evenly distributed along its own length direction. When the guide plate (3) is connected to the linkage rod (5), the mounting plate (33) is inserted into the second slot (51). When each guide plate (3) in the first ventilation hole (11) rotates to the point where the guide blades (31) on the adjacent guide plates (3) are all in contact with each other, the guide plates (3) close the first ventilation hole (11).

2. The booster fan according to claim 1, characterized in that, Multiple first ventilation holes (11) are formed on the front panel (1), and the multiple first ventilation holes (11) are distributed sequentially along the length direction of the front panel. Multiple second ventilation holes (21) are formed on the rear cover (2), and the number is the same as that of the first ventilation holes (11). The position of each second ventilation hole (21) corresponds to each first ventilation hole (11).

3. The booster fan according to claim 1, characterized in that, The opening of the second slot (51) has a notch (52) with a gap width smaller than the diameter of the card table (33).

4. The booster fan according to claim 1, characterized in that, The end of one of the guide plates (3) in the first ventilation hole (11) is also fixedly connected to a dial wheel (4) coaxial with the shaft (32). An operation hole (12) is formed on the front panel (1), and the dial wheel (4) extends out of the front panel through the operation hole (12).

5. The booster fan according to claim 1, characterized in that, One of the guide plates (3) inside the first ventilation hole (11) is connected to a motor that can control the rotation of the guide plate.

6. The booster fan according to claim 1, characterized in that, The cross-section of the guide vane (31) is spindle-shaped.

7. The booster fan according to claim 1, characterized in that, A display screen (15) and operation buttons (16) are provided on the side of the front panel (1) away from the rear cover (2).

8. The booster fan according to claim 1, characterized in that, Both ends of the guide plate (3) are provided with limiting pads (36), and the distance between the two limiting pads (36) on the guide plate (3) is the same as the distance between the support platforms (13) on both sides of the first ventilation hole (11); The rear cover (2) has a limiting platform (22) on the side facing the front panel (1) that corresponds to the position of the support platform (13). When the rear cover (2) and the front panel (1) are fastened together, the limiting platform (22) abuts against the support platform (13).

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