Double-sided air outlet cassette fan

Abstract

The utility model relates to fan technical field especially is involved in a kind of double-sided air outlet cassette fan, including machine body, centrifugal fan and surface cooler are arranged in machine body, centrifugal fan is used to extract air and is discharged after being passed to surface cooler, surface cooler is used for cooling, its characterized in that: panel is set up on machine body, air outlet and return air inlet are set up on panel, return air inlet is set in the middle of panel, air outlet is set in the two sides of panel, water pan is set in the side of machine body close to panel, first flow passage and second flow passage are set in water pan, first flow passage and second flow passage are communicated with two air outlets respectively, return air hole is also set on water pan corresponding to return air inlet, return air hole, first flow passage, second flow passage are not communicated each other.Water pan can not only collect condensate, but also can air outlet from two sides, meet more direction air outlet demand, and return air hole, first flow passage, second flow passage are not communicated each other, avoid the airflow in each flow passage to interfere with each other.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, and in particular to a double-sided air outlet cassette fan. Background Technology

[0002] Cassette fan coil units are common terminal devices in central air conditioning systems, primarily used to regulate indoor air temperature, humidity, and air cleanliness. Their core function is to drive airflow through heat exchange coils via a fan to achieve cooling, heating, and dehumidification.

[0003] Current cassette blowers typically use unidirectional airflow, which can meet the needs of most usage scenarios. However, in some cases, airflow needs to be discharged in two directions, and conventional cassette blowers cannot meet this requirement. Utility Model Content

[0004] To address the issue that existing cassette blowers typically employ unidirectional airflow, which, while meeting the needs of most applications, sometimes require airflow from both directions, and conventional cassette blowers struggle to meet this requirement, this application provides a dual-sided airflow cassette blower, with the specific solution as follows.

[0005] A double-sided air-discharge cassette fan includes a body, in which a centrifugal fan and a surface cooler are installed. The centrifugal fan draws air and discharges it through the surface cooler, which is used for cooling. A panel is provided on the body, with an air outlet and a return air outlet. The return air outlet is located in the center of the panel, and the air outlets are located on both sides of the panel. A water collection tray is provided on the side of the body near the panel, and a first flow channel and a second flow channel are provided in the water collection tray. The first flow channel and the second flow channel are respectively connected to the two air outlets. A return air hole is also provided on the water collection tray corresponding to the return air outlet. The return air hole, the first flow channel, and the second flow channel are not connected to each other.

[0006] By adopting the above technical solutions, the centrifugal fan can draw in air and discharge it after cooling by the surface cooler, thus achieving air conditioning function. The design of the return air vent located in the middle of the panel and the air outlet located on both sides of the panel can make the air circulation more reasonable and improve the cooling efficiency. The water tray can collect condensate and can also be connected to the two air outlets through the first and second flow channels respectively, so that air can be discharged from both sides, meeting the air discharge needs of more directions. Moreover, the return air vent, the first flow channel, and the second flow channel are not connected to each other, avoiding mutual interference of airflow in each flow channel, improving integration, and saving installation space.

[0007] Optionally, the machine body is further provided with a partition plate, which divides the machine body into an independent return air space and an outlet air space. The centrifugal fan is installed on the partition plate, the surface cooler is located in the outlet air space, the fan outlet faces the outlet air space, the fan return air inlet is located in the return air space, the return air space is connected to the return air hole, and the outlet air space is connected to the first flow channel and the second flow channel.

[0008] By adopting the above technical solution, the interior of the unit is divided into independent return air space and outlet air space by using a partition, so that the return air and outlet air paths are separated, reducing air turbulence interference, improving ventilation efficiency, and ensuring that the return air enters the outlet air space smoothly through the centrifugal fan and comes into contact with the surface cooler for cooling, and then is discharged from the outlet air outlet through the first flow channel and the second flow channel. In addition, condensate usually forms at the surface cooler, and separating them can reduce the situation of condensate dripping from the return air outlet.

[0009] Optionally, a water receiving trough is provided at the position of the water receiving tray corresponding to the surface cooler, and the water receiving trough is not connected to the first flow channel and the second flow channel.

[0010] By adopting the above technical solution, the air is cooled at the surface cooler, which easily causes condensation. The water collection tank located at the surface cooler can better collect the condensation, improve collection efficiency and effectiveness, and also improve the overall integration.

[0011] Optionally, multiple return air vents are provided at positions corresponding to the return air space, and the return air vents are equidistantly spaced along the length of the partition plate.

[0012] By adopting the above technical solutions, multiple return air vents make the return air more uniform and stable, which can improve the return air efficiency, ensure sufficient air volume to enter the return air space, and facilitate the subsequent fan to draw air and deliver it to the surface cooler for cooling.

[0013] Optionally, multiple centrifugal fans are also provided along the central partition, and the centrifugal fans are arranged between each return air hole.

[0014] By adopting the above technical solution, multiple centrifugal fans are set between each return air vent, which can enhance the return air efficiency, allow more air to enter the fans quickly, and improve the cooling speed.

[0015] Optionally, the first flow channel is arranged in the vertical direction, while the second flow channel is arranged in the width direction of the body.

[0016] By adopting the above technical solutions, air can be delivered from different channels to the corresponding air outlets in a specific direction, optimizing the airflow path, which is conducive to realizing the dual-sided air outlet function and improving the air outlet efficiency and effect of the fan.

[0017] Optionally, the water receiving tray is also provided with an air distribution cover plate, which is located at the position of the second flow channel and completely blocks the area except for the connection between the second flow channel and the second air outlet.

[0018] By adopting the above technical solutions, it is possible to effectively prevent air leakage in the second flow channel to other areas, so that the air can be discharged more concentratedly from the second air outlet, thereby improving the air outlet efficiency and directionality.

[0019] Optionally, the air distribution cover plate has a clearance hole corresponding to the return air hole, and the clearance hole is connected to the return air hole.

[0020] By adopting the above technical solutions, the return air is made smoother, avoiding the impact of structural obstruction on the return air efficiency, and ensuring that the fan can effectively draw in outside air.

[0021] Optionally, an air outlet louver is provided on the panel corresponding to the air outlet, and the air outlet louver is hinged to the panel and controlled by a stepper motor.

[0022] By adopting the above technical solutions, the swing of the air outlet blades can be controlled by a stepper motor, the direction of air outlet can be flexibly adjusted, and the coverage of the air outlet and the comfort of use can be improved.

[0023] Optionally, the panel is provided with a return air grille and a nylon filter corresponding to the return air vent, with the nylon filter located on one side near the interior of the unit.

[0024] By adopting the above technical solutions, the return air grille can initially filter larger impurities from the air entering the return air inlet, and the nylon filter screen, located on the side close to the inside of the unit, can further filter fine impurities in the air, thereby improving the cleanliness of the air entering the unit.

[0025] In summary, this application has at least the following beneficial effects: This application addresses the problem that existing cassette blowers typically use unidirectional air inlet and outlet, which, while meeting the needs of most usage scenarios, sometimes require air outlet from both directions, and conventional cassette blowers cannot meet this requirement. This application solves this problem by setting a water collection tray on the cassette blower that can divide the airflow into two channels, thus serving both as a water collection tray and an air distribution tray, enabling air outlet from both sides and improving the overall integration. Attached Figure Description

[0026] Figure 1 This is an exploded view of this embodiment.

[0027] Figure 2 This is a perspective view of this embodiment, mainly used to show the interior of the machine body.

[0028] Figure 3 This is a cross-sectional view of the water receiving tray in this embodiment.

[0029] Figure 4 This is a cross-sectional view of the water receiving tray in this embodiment.

[0030] Figure 5 This is a perspective view of the water receiving tray in this embodiment. Figure 6 This is an exploded view of the water receiving tray in this embodiment.

[0031] Explanation of reference numerals in the attached figures: 1. Main body; 11. Middle partition; 12. Return air space; 13. Exit air space; 2. Centrifugal fan; 3. Surface cooler; 4. Panel; 41. Air outlet; 42. Return air inlet; 43. Air outlet louver; 44. Stepper motor; 45. Return air grille; 46. Nylon filter; 5. Water tray; 51. First flow channel; 52. Second flow channel; 53. Return air hole; 54. Water trough; 55. Air distribution cover; 56. Clearance hole. Detailed Implementation

[0032] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] A type of double-sided air outlet cassette fan, such as Figure 1 and Figure 2 As shown, the device includes a body 1, inside which a centrifugal fan 2 and a surface cooler 3 are installed. The centrifugal fan 2 draws in air and discharges it through the surface cooler 3, which is used for cooling. A panel 4 is installed on the body 1, with an air outlet 41 and an air return outlet 42. The air return outlet 42 is located in the middle of the panel 4, and the air outlet 41 is located on both sides of the panel 4. A water collection tray 5 is installed inside the body 1 near the panel 4. In practice, the centrifugal fan 2 can draw in fresh air from the outside through the air return outlet 42, blow it onto the surface cooler 3 for cooling, and then blow it out through the air outlet 41 to achieve airflow.

[0034] like Figure 3 and Figure 4 As shown, the water receiving tray 5 is provided with a first flow channel 51 and a second flow channel 52. The first flow channel 51 and the second flow channel 52 are respectively connected to two air outlets 41. A return air hole 53 is also provided on the water receiving tray 5 corresponding to the return air outlet 42. The return air hole 53, the first flow channel 51, and the second flow channel 52 are not interconnected. Both the first flow channel 51 and the second flow channel 52 are located inside the water receiving tray 5. The first flow channel 51 is arranged vertically, while the second flow channel 52 is arranged along the width direction of the body 1. In specific implementation, as follows... Figure 1 and Figure 4 The arrows indicate the direction of airflow. The drip tray 5 also serves to collect condensate, improving the integration.

[0035] like Figure 2 and Figure 3 The machine body 1 is further equipped with a partition 11, which divides the machine body 1 into an independent return air space 12 and an outlet air space 13. A centrifugal fan 2 is installed on the partition 11, and a surface cooler 3 is located in the outlet air space 13. The fan outlet 41 faces the outlet air space 13, and the fan return air inlet 42 is located in the return air space 12. The return air space 12 is connected to the return air hole 53, and the outlet air space 13 is connected to the first flow channel 51 and the second flow channel 52. In specific implementation, fresh air first enters the return air space 12 from the return air inlet 42, is blown into the outlet air space 13 by the fan, and after cooling, it becomes cold air and is then discharged.

[0036] like Figure 5 As shown, a water receiving tray 5 is provided with a water receiving groove 54 at the position corresponding to the surface cooler 3. The water receiving groove 54 is not connected to the first flow channel 51 and the second flow channel 52. In specific implementation, the water receiving groove 54 of the water receiving tray 5 is located on the side close to the surface cooler 3. The water receiving tray 5 also has a groove for the surface cooler 3 to be embedded, which improves the convenience of installation. The water receiving groove 54 is composed of two parts: a guide and an outlet. The outlet part can discharge the condensate in the water receiving groove 54 through a pipe.

[0037] like Figure 2 As shown, multiple return air vents 53 are arranged at positions corresponding to the return air space 12, and the return air vents 53 are equidistantly spaced along the length of the partition plate 11. Multiple centrifugal fans 2 are also arranged along the partition plate 11, and the centrifugal fans 2 are positioned between each return air vent 53. In a specific implementation, this application uses two centrifugal fans 2, which can further improve the air intake efficiency.

[0038] like Figure 6 As shown, the water receiving tray 5 is also equipped with an air distribution cover 55, which is located at the position of the second flow channel 52. The air distribution cover 55 completely blocks the area except for the connection between the second flow channel 52 and the second air outlet 41. The air distribution cover 55 has a clearance hole 56 corresponding to the return air hole 53, and the clearance hole 56 is connected to the return air hole 53. In specific implementation, the air distribution cover 55 can block the part of the air that would leak out, reducing air leakage.

[0039] like Figure 1 As shown, an air outlet louver 43 is provided on panel 4 corresponding to the air outlet 41. The air outlet louver 43 is hinged to panel 4 and controlled by a stepper motor 44. A return air grille 45 and a nylon filter 46 are provided on panel 4 corresponding to the return air inlet 42. The nylon filter 46 is located on the side closer to the interior of the body 1. In specific implementation, each air outlet louver 43 at the two air outlets 41 is independently controlled by a stepper motor 44.

[0040] Working principle: Two flow channels are directly opened in the water receiving tray 5, which simultaneously serve the functions of water receiving and air distribution, and can also provide air outlets from both sides, thus improving the overall integration.

[0041] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A double-sided air outlet cassette fan, comprising a body (1), wherein a centrifugal fan (2) and a surface cooler (3) are disposed within the body (1), wherein the centrifugal fan (2) is used to draw air and discharge it after passing it through the surface cooler (3), and the surface cooler (3) is used for cooling, characterized in that: The body (1) is provided with a panel (4), on which an air outlet (41) and a return air outlet (42) are provided. The return air outlet (42) is located in the middle of the panel (4), and the air outlet (41) is located on both sides of the panel (4). A water receiving tray (5) is provided inside the body (1) on the side near the panel (4). A first flow channel (51) and a second flow channel (52) are provided inside the water receiving tray (5). The first flow channel (51) and the second flow channel (52) are respectively connected to the two air outlets (41). A return air hole (53) is also provided on the water receiving tray (5) corresponding to the return air outlet (42). The return air hole (53), the first flow channel (51), and the second flow channel (52) are not connected to each other.

2. A double-sided air outlet cassette fan according to claim 1, characterized in that: The body (1) is also provided with a partition plate (11), which divides the body (1) into an independent return air space (12) and an outlet air space (13). The centrifugal fan (2) is installed on the partition plate (11), the surface cooler (3) is located in the outlet air space (13), the outlet air port (41) of the fan faces the outlet air space (13), the return air port (42) of the fan is located in the return air space (12), the return air space (12) is connected to the return air hole (53), and the outlet air space (13) is connected to the first flow channel (51) and the second flow channel (52).

3. A double-sided air outlet cassette fan according to claim 2, characterized in that: The water receiving tray (5) is provided with a water receiving trough (54) at the position corresponding to the surface cooler (3). The water receiving trough (54) is not connected to the first flow channel (51) and the second flow channel (52).

4. A double-sided air outlet cassette fan according to claim 2, characterized in that: The return air vents (53) are provided at multiple locations corresponding to the return air space (12), and the return air vents (53) are provided at equal intervals along the length direction of the partition plate (11).

5. A double-sided air outlet cassette fan according to claim 4, characterized in that: Multiple centrifugal fans (2) are also provided along the partition plate (11), and the centrifugal fans (2) are arranged between each return air hole (53).

6. A double-sided air outlet cassette fan according to claim 1, characterized in that: The first flow channel (51) is arranged in the vertical direction, while the second flow channel (52) is arranged in the width direction of the body (1).

7. A double-sided air outlet cassette fan according to claim 6, characterized in that: The water receiving tray (5) is also provided with an air distribution cover (55), which is located at the position of the second flow channel (52). The air distribution cover (55) completely blocks the area except for the connection between the second flow channel (52) and the second air outlet (41).

8. A double-sided air outlet cassette fan according to claim 7, characterized in that: The air distribution cover (55) has a clearance hole (56) corresponding to the return air hole (53), and the clearance hole (56) is connected to the return air hole (53).

9. A double-sided air outlet cassette fan according to claim 1, characterized in that: An air outlet blade (43) is provided on the panel (4) corresponding to the air outlet (41). The air outlet blade (43) is hinged to the panel (4) and controlled by a stepper motor (44).

10. A double-sided air outlet cassette fan according to claim 1, characterized in that: The panel (4) is provided with a return air grille (45) and a nylon filter (46) corresponding to the return air inlet (42), and the nylon filter (46) is located on one side close to the inside of the body (1).

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