Flow guiding device and air conditioner with flow guiding device

Abstract

The utility model provides a flow guide device and an air conditioner with the flow guide device, the flow guide device is arranged at an air supply outlet of a fan, and the flow guide device comprises a flow guide plate and a surrounding plate; the coaming is installed on the fan, on the air supply path of the air supply outlet, the first end of the flow guide plate is connected with the fan, the second end of the flow guide plate inclines towards the central axis of the air supply outlet, the second end of the flow guide plate and the coaming define a flow guide air duct, and the flow guide air duct communicates with the air supply outlet. According to the utility model, the guide plate is arranged at the air supply outlet, so that air can uniformly cover each area of the evaporator when passing through the guide air duct, the problem of insufficient air quantity at the bottom of the original evaporator is effectively solved, and the air field distribution on the windward side of the evaporator is more uniform.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioner technology, specifically relating to a flow guiding device and an air conditioner having the flow guiding device. Background Technology

[0002] Air-cooled cabinet air conditioners are mainly used in industrial, agricultural, and large commercial settings due to their ease of installation. However, existing blower-type air-cooled cabinet air conditioners, due to their width limitations, have evaporators installed at a slight angle within the unit, and the drain pan is placed at the bottom of the evaporator. This affects airflow to the bottom of the evaporator, resulting in uneven internal airflow distribution and less airflow to the bottom of the evaporator, thus impacting heat exchange efficiency. Utility Model Content

[0003] This invention provides a flow guiding device and an air conditioner having the flow guiding device, which can solve the technical problem of uneven air field distribution inside the existing evaporator.

[0004] This utility model provides a flow guiding device, which is installed at the air outlet of a fan, and includes a flow guiding plate and a surrounding plate.

[0005] The enclosure is installed on the fan. On the air supply path of the air outlet, the first end of the guide plate is connected to the fan, and the second end of the guide plate is inclined toward the central axis of the air outlet. The second end of the guide plate and the enclosure form a guide air duct, and the guide air duct is connected to the air outlet.

[0006] In some embodiments, with the cross-section of the air guiding device as the projection plane, the air guiding plate includes a first panel and a second panel connected to each other. The end of the first panel away from the second panel is connected to the fan, and the end of the second panel away from the first panel is inclined toward the central axis of the air outlet. The second panel and the surrounding plate together form the air guiding duct.

[0007] In some embodiments, there is an included angle α between the wall surface of the first panel facing the air outlet and the wall surface of the second panel facing the air outlet, wherein the included angle α ranges from 150° to 170°.

[0008] In some embodiments, the fan includes a fan mounting plate, the guide plate further includes a flange, one side of the first panel overlaps with the outer wall of the fan mounting plate, the other side of the first panel is provided with the flange, and the first panel is detachably connected to the fan mounting plate through the flange.

[0009] In some embodiments, the first panel has an included angle b between the wall surface opposite the air outlet and the flange, the included angle b being in the range of 80° to 100°.

[0010] In some embodiments, the second panel has folded edges on both sides in the width direction, and the folded edges are detachably connected to the surrounding panel.

[0011] In some embodiments, the second end of the guide plate is provided with a stacked plate, and the stacked plate is located on the wall of the second panel opposite to the air outlet.

[0012] In some embodiments, the enclosure includes a first side plate, a second side plate, and a third side plate connected in sequence, the guide plate is disposed opposite to the second side plate, and the two sides of the guide plate are respectively connected to the first side plate and the third side plate.

[0013] An air conditioner includes an evaporator, a fan, a flow guiding device, and a housing. The flow guiding device is the aforementioned flow guiding device. The evaporator is inclinedly disposed in the housing. The fan is disposed on the air inlet side of the evaporator. The flow guiding device guides the airflow to the windward side of the evaporator.

[0014] In some embodiments, a water receiving tray is also included, which is disposed at the bottom of the evaporator. The vertical distance between the air outlet and the top of the water receiving tray is L1, and the vertical distance between the air outlet and the second end of the guide plate is L2. The distance L2 satisfies: L1 < L2 < 1.5L1.

[0015] The present invention provides a flow guiding device and an air conditioner having the flow guiding device, which have the following beneficial effects:

[0016] The guide plate of this invention is inclined towards the central axis of the air outlet to form a gradually narrowing air duct. This allows the air speed and volume to be reasonably adjusted at different positions when the air passes through the guide duct. When the air enters the windward side of the evaporator, the air can evenly cover all areas of the evaporator. In particular, it can effectively improve the problem of insufficient air volume at the bottom of the evaporator, making the air field distribution on the windward side of the evaporator more uniform. The uniform air field distribution can make the air flow on the surface of the evaporator more uniform, which is conducive to the rapid transfer and exchange of heat. This allows the evaporator to absorb or release heat more fully, thereby greatly improving the cooling or heating efficiency of the air conditioner and enhancing the overall performance. The enclosure is installed on the fan, and the guide plate is connected to the enclosure. The enclosure can enhance the integrity and stability of the guide device, making the guide plate less prone to deformation or displacement during the guide process, ensuring the stability of the guide effect. The enclosure can also prevent the airflow in the guide duct from leaking to other areas, ensuring that all the air volume is guided to the windward side of the evaporator, improving the uniformity of the air field distribution and heat exchange efficiency. The guide plate and the enclosure together form the guide duct, which constrains and guides the air delivered by the fan, making it flow along the set path. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the flow guiding device according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the guide plate according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of included angles a and b in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the enclosure panel according to an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of an air conditioner according to an embodiment of the present utility model;

[0023] Figure 6 for Figure 5 Enlarged detail image;

[0024] Figure 7 This is a schematic diagram of the airflow pattern of the air conditioner without the addition of a deflector.

[0025] Figure 8 A schematic diagram of the airflow pattern of the air conditioner when a deflector is added;

[0026] Figure 9 The diagram shows the wind field distribution with and without the deflector.

[0027] Attached Figures: 1-Fan; 101-Air Outlet; 11-Fan Mounting Plate; 2-Guide Plate; 201-First End; 202-Second End; 21-First Panel; 22-Second Panel; 221-Folded Edge; 23-Flanged Edge; 24-Stacked Plate; 3-Enclosure Panel; 31-First Side Panel; 32-Second Side Panel; 33-Third Side Panel; 4-Guide Air Duct; 5-Evaporator; 6-Shell; 7-Drain Tray. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0029] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0030] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used here to describe the spatial positional relationship of a device or feature as shown in the figure with other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation of the device as described in the figure. For example, if a device in the figure is inverted, a device described as "above" or "on top of" other devices or structures will subsequently be positioned as "below" or "under" other devices or structures.

[0031] See also Figure 1 and Figure 2 As shown, according to an embodiment of the present invention, a flow guiding device is provided, which is installed at the air outlet 101 of the fan 1, including a flow guiding plate 2 and a surrounding plate 3; the surrounding plate 3 is installed on the fan 1, the first end 201 of the flow guiding plate 2 is connected to the fan 1, and the second end 202 of the flow guiding plate 2 is inclined toward the central axis of the air outlet 101 in the air delivery path of the air outlet 101. The second end 202 of the flow guiding plate 2 and the surrounding plate 3 enclose each other to form a flow guiding duct 4, and the flow guiding duct 4 is connected to the air outlet 101.

[0032] Specifically, the enclosure 3 is installed on the fan 1. With the cross-section of the air guide device as the projection plane, the first end 201 of the air guide plate 2 is connected to the fan 1, and the second end 202 of the air guide plate 2 (in the height direction of the air guide plate 2) is inclined towards the central axis of the air outlet 101. That is, the entire air guide plate 2 is inclined relative to the central axis of the air outlet 101. The resulting air guide duct 4 has a larger cross-section near the air outlet 101, while the cross-sectional area of ​​the air guide duct 4 near the second end 202 of the air guide plate 2 is smaller. This essentially forms a gradually narrowing air duct structure. When the fan 1 delivers air from the air outlet 101, it flows into the air guide duct 4 and is then guided to the windward side of the evaporator 5. Due to the inclined arrangement of the air guide plate 2, the air in the air guide duct 4 can be guided to the bottom of the evaporator 5, resulting in a more uniform airflow distribution on the windward side of the evaporator 5.

[0033] In this embodiment, the guide plate 2 is inclined towards the central axis of the air outlet 101 to form a gradually narrowing air duct. This allows the wind speed and air volume to be reasonably adjusted at different positions when the wind passes through the guide air duct 4. When the wind enters the windward side of the evaporator 5, the wind can evenly cover all areas of the evaporator 5, which can effectively improve the problem of insufficient air volume at the bottom of the evaporator 5. This makes the air field distribution on the windward side of the evaporator 5 more uniform. The uniform air field distribution can make the air flow on the surface of the evaporator 5 more uniform, which is conducive to the rapid transfer and exchange of heat. This allows the evaporator 5 to absorb or release heat more fully, thereby greatly improving the cooling or heating efficiency of the air conditioner and enhancing the overall performance. The enclosure 3 is installed on the fan 1, and the guide plate 2 is connected to the enclosure 3. The enclosure 3 can enhance the integrity and stability of the guide device, making the guide plate 2 less prone to deformation or displacement during the guide process, ensuring the stability of the guide effect. The enclosure 3 can also prevent the airflow in the guide duct 4 from leaking to other areas, ensuring that all the air volume is guided to the windward side of the evaporator 5, improving the uniformity of the air field distribution and the heat exchange efficiency. The guide plate 2 and the enclosure 3 together form the guide duct 4, which constrains and guides the air delivered by the fan 1, making it flow along the set path.

[0034] See also Figures 1 to 3 As shown, with Figure 3 and 6Based on the indicated orientation, the cross-section of the air guiding device is the projected plane. Here, the cross-section refers to the section in the height direction when the air guiding device is vertically installed. The air guiding plate 2 includes a first panel 21 and a second panel 22 connected to each other. The end of the first panel 21 facing away from the second panel 22 is connected to the fan 1. The end of the second panel 22 facing away from the first panel 21 is inclined towards the central axis of the air outlet 101. The second panel 22 and the surrounding plate 3 together form the air guiding duct 4. It is worth noting that in this embodiment, the air guiding duct 4 is formed by the second end 202 of the air guiding plate 2 near the air outlet 101 and the surrounding plate 3. The structure of the air guiding duct 4 between the first end 201 and the second end 202 of the air guiding plate 2 is not limited. For example, the end of the second panel 22 near the surrounding plate 3 is inclined, while the end connected to the first panel 21 is a straight plate structure. The optimal implementation of this embodiment is that when the guide plate 2 includes a first panel 21 and a second panel 22, the second panel 22 is inclined as a whole, and the two sides of the second panel 22 in the length direction are to be enclosed with the surrounding plate 3 to form a spatially closed guide air duct.

[0035] Specifically, when the cross-section of the flow guiding device is used as the projection plane, the height direction of the flow guiding plate 2 is used as the projection plane. The first panel 21 and the second panel 22 are connected to each other in the upper and lower positions. The lengths of the first panel 21 and the second panel 22 are the same. The first panel 21 is connected to the fan 1, while the second panel 22 is inclined relative to the central axis of the air outlet 101. After the second panel 22 is connected to the enclosure 3, it forms the flow guiding duct 4.

[0036] In this embodiment, the two panels are connected to form an integral structure. Compared to a single guide plate 2, this arrangement significantly enhances the structural strength of the airflow guiding device. The first panel 21 is connected to the fan 1, providing a stable support foundation for the entire airflow guiding device. After the second panel 22 is connected to the first panel 21, it can resist the lateral force generated by the airflow impact, making the airflow guiding device less prone to deformation or damage during operation. The airflow duct 4 formed by the two panels can reduce airflow turbulence and eddies at the air outlet 101. The airflow can flow more smoothly within the airflow duct 4, reducing wind resistance. This reduces the power consumption of the fan 1 during operation, improves the working efficiency of the fan 1, and also helps to reduce the noise of the fan 1. In addition, the segmented connection method of the first panel 21 being connected to the fan 1 and the second panel 22 being connected to the enclosure 3 makes the installation process simpler. The installer can first securely connect the first panel 21 to the fan 1, and then connect the second panel 22 to the enclosure 3 to form a complete airflow duct 4. This installation method improves installation efficiency and is conducive to adaptation to fans 1 of different sizes and types, thus enhancing the versatility of the airflow guiding device.

[0037] See also Figures 1 to 3As shown, the wall surface of the first panel 21 facing the air outlet 101 and the wall surface of the second panel 22 facing the air outlet 101 have an included angle α, the angle α being in the range of 150° to 170°.

[0038] In this embodiment, the included angle α is within this range, with a preferred value of 165°. This allows the guide plate 2 to effectively guide the airflow from the fan 1 towards the bottom of the evaporator 5. When the airflow enters the guide duct 4, the included angle between the first panel 21 and the second panel 22 allows the airflow to smoothly change direction, avoiding excessive resistance and energy loss, thereby more efficiently guiding the airflow to the bottom of the evaporator 5. This included angle helps to make the airflow field more uniform on the windward side of the evaporator 5. If the included angle is too large or too small, the airflow may become too concentrated or dispersed, affecting the uniformity of the airflow field on the windward side of the evaporator 5, and thus affecting the heat exchange effect.

[0039] In one specific implementation, the first panel 21 can be connected to the fan 1 by bolts, or another plate can be provided to connect to the fan 1.

[0040] See also Figures 1 to 3 As shown, in this embodiment, in order to facilitate the installation of the guide plate 2 and the stability of the overall guide device, the fan 1 includes a fan mounting plate 11, and the guide plate 2 also includes a flange 23. One side of the first panel 21 overlaps with the outer wall of the fan mounting plate 11, and the other side of the first panel 21 is provided with a flange 23. The first panel 21 is detachably connected to the fan mounting plate 11 through the flange 23.

[0041] Specifically, the width extension direction of the flange 23 is away from the central axis of the air outlet 101, and the length of the flange 23 is the same as the length of the first panel 21 and the second panel 22. The guide plate 2, with the first panel 21, the second panel 22, and the flange 23, is essentially a complete plate. The bending directions of the second panel 22 and the flange 23 are opposite to those of the first panel 21, providing a larger contact area and connection strength for the connection between the guide plate 2 and the fan mounting plate 11. The first panel 21 is detachably connected to the fan mounting plate 11 through the flange 23. The flange 23 is provided with mounting holes and is connected to the fan mounting plate 11 by bolts. The first panel 21 overlaps with the outer wall of the fan mounting plate 11, while the second panel 22 is inclined towards the central axis of the air outlet 101.

[0042] In this embodiment, the connection between the flange 23 and the fan mounting plate 11 can disperse the stress generated by the wind to a wider area of ​​the guide plate 2, reducing stress concentration and improving the service life of the guide plate 2. The detachable nature of the bolt connection makes the installation and disassembly of the guide plate 2 convenient and quick. When maintenance, replacement, or adjustment of the guide plate 2 is required, disassembly can be completed simply by loosening the bolts, improving the maintenance efficiency of the equipment. If the size or shape of the fan 1 changes, the flange 23 can adapt to this change within a certain range by adjusting the position of the bolts, thereby improving the versatility and adaptability of the guide device. Moreover, the tight connection between the flange 23 and the fan 1 can effectively reduce airflow leakage, ensuring that all the air blown out by the fan 1 enters the guide duct 4, improving the uniformity of the air field and heat exchange efficiency. The flange 23 can improve the vibration resistance of the guide plate 2, reduce the impact of vibration generated by the fan 1 during operation on the guide plate 2, and ensure the stable operation of the guide device.

[0043] See also Figures 1 to 3 As shown, the first panel 21 has an included angle b between the wall surface away from the air outlet 101 and the flange 23, and the included angle b ranges from 80° to 100°.

[0044] In this embodiment, the included angle b is preferably 90°, which can enhance the overall structural stability of the guide plate 2, making the guide plate 2 less prone to deformation under wind force, improving the service life of the guide device, and also providing greater flexibility for the installation and adjustment of the guide plate 2, so as to better adapt to different fan sizes and shapes, as well as different installation space requirements.

[0045] See also Figures 1 to 3 As shown, the second panel 22 has folded edges 221 on both sides in the width direction, and the folded edges 221 are detachably connected to the surrounding panel 3.

[0046] Specifically, after the second panel 22 is connected to the enclosure 3, the folded edge 221 faces away from the air outlet 101, that is, the folded edge 221 is not located in the air duct 4, and the folded edge 221 is detachably connected to the enclosure 3 by bolts.

[0047] In this embodiment, the folded edge 221 is bolted to the surrounding plate 3, providing a larger connection area and stronger connection strength between the guide plate 2 and the surrounding plate 3. This ensures that the guide plate 2 will not loosen or fall off due to airflow impact during operation. The folded edge 221 disperses the stress at the connection point, reduces stress concentration, and improves the service life of the guide plate 2. The folded edge 221 and the second panel 22 form an integral structure, enhancing the overall rigidity of the guide plate 2 and making it less prone to deformation under wind force. The folded edge 221 can improve the vibration resistance of the guide plate 2, reduce the impact of vibration generated by the fan 1 during operation on the guide plate 2, and ensure the stable operation of the guide device. In addition, the folded edge 221 faces away from the air outlet 101 and is not located in the guide duct 4, avoiding interference with the airflow and ensuring smooth airflow within the guide duct 4.

[0048] See also Figures 1 to 3 As shown, a stacked plate 24 is provided at the end of the second panel 22 away from the first panel 21, and the stacked plate 24 is located on the wall of the second panel 22 away from the air outlet 101. The stacked plate 24 can be formed by folding the first panel 21 outward, or it can be detachably connected to the second panel 22.

[0049] In this embodiment, the stacked plate 24 is equivalent to a partial thickening of the thickened second panel 22, specifically at the end of the air supply path of the second panel 22. The length of the stacked plate 24 is the same as the length of the second panel 22. The stacked plate 24 increases the thickness of the guide plate 2 at the end of the air supply path of the second panel 22, thereby improving the structural strength of this area. Since this area is on the direct impact path of the airflow, the stacked plate 24 can effectively resist the pressure generated by the airflow impact, reduce the risk of deformation of the guide plate 2 during operation, and ensure the stability and service life of the guide device. The end of the second panel 22 is a critical part of the airflow impact and is prone to stress concentration. The stacked plate 24 can disperse the stress, reduce stress concentration, improve the fatigue strength of the guide plate 2, and reduce the risk of damage caused by long-term vibration or airflow impact.

[0050] See also Figures 1 to 4 As shown, the enclosure 3 includes a first side plate 31, a second side plate 32, and a third side plate 33 connected in sequence. The guide plate 2 is arranged opposite to the second side plate 32. The two sides of the guide plate 2 are respectively connected to the first side plate 31 and the third side plate 33. A fan mounting plate 11 is provided on the outer edge of the air outlet 101 of the fan 1. Connecting plates are provided on the bottom outer wall and top outer wall of the first side plate 31 to the third side plate 33, and the connecting plates are connected to the fan mounting plate 11 of the fan 1.

[0051] In this embodiment, the first side plate 31, the second side plate 32, and the third side plate 33 are sequentially connected to form an enclosed frame structure, which, together with the guide plate 2, constitutes the airflow duct 4. This ensures that all the air blown out by the fan 1 enters the airflow duct 4, preventing airflow leakage and improving the uniformity of the airflow field and heat exchange efficiency. The multiple side plates allow for more flexible adjustment of the shape and size of the airflow duct 4, better adapting it to different fan 1 and evaporator 5 sizes and installation location requirements. The multi-side plate structure enhances the overall stability and rigidity of the enclosure 3, enabling it to better resist airflow impact and vibrations generated during fan 1 operation, ensuring the stability and reliability of the airflow guiding device during long-term operation. The guide plate 2 is connected to the first side plate 31 and the third side plate 33, distributing stress across multiple side plates of the enclosure 3, reducing local stress concentration, and improving the service life of the airflow guiding device.

[0052] In one specific implementation, fan 1 is an axial flow fan 1, which includes a volute, a motor, and fan blades. The fan blades are disposed in the volute. After the motor starts, it drives the blades to rotate at high speed around the axis. In this embodiment, two fans 1 are provided, and both fans 1 are driven by the same motor.

[0053] See also Figure 1 , Figure 5 and Figure 6 As shown, an air conditioner includes an evaporator 5, a fan 1, a flow guiding device, and a housing 6. The flow guiding device is the aforementioned flow guiding device. The evaporator 5 is inclinedly disposed in the housing 6. The fan 1 is disposed on the air inlet side of the evaporator 5. The flow guiding device guides the airflow to the evaporator 5.

[0054] Specifically, the air conditioner in this embodiment is a frost-free air conditioner. The frost-free air conditioner is vertically arranged. The fan 1 is installed in the housing 6 through the fan mounting plate 11. The enclosure 3 and the guide plate 2 are both connected to the fan mounting plate 11. The evaporator 5 is arranged above the fan 1. When the evaporator 5 is inclined in the housing 6, with the cross-section of the air conditioner as the projection plane, the air outlet 101 faces the windward side of the evaporator 5, and the guide channel sends air to the windward side of the evaporator 5. The lower middle part of the housing 6 is provided with an air inlet, and the upper middle part of the housing 6 is provided with an air outlet. The air after the heat exchanger in the evaporator 5 flows out from the air outlet.

[0055] In this embodiment, the airflow guiding device can evenly direct the air blown by the fan 1 to the windward side of the evaporator 5, especially to easily overlooked areas such as the bottom of the evaporator 5. This solves the problems of insufficient airflow and uneven air distribution at the bottom of the evaporator 5 in traditional air-cooled air conditioners, ensuring that all areas of the evaporator 5 receive sufficient airflow coverage, improving heat exchange efficiency. By optimizing the airflow distribution, the delivered air is more uniform, avoiding localized overcooling or overheating, and improving the uniformity of indoor temperature. The evaporator 5 is installed at an angle in the casing 6, which changes the relative angle between the airflow and the evaporator 5, allowing the airflow to flow more smoothly over the surface of the evaporator 5, reducing dead air zones, further optimizing airflow distribution, and improving heat exchange effect. The airflow guiding device, in conjunction with the angled evaporator 5, ensures more sufficient contact between the air and the surface of the evaporator 5, accelerating heat transfer, improving cooling or heating efficiency, and enhancing the overall performance of the air conditioner.

[0056] See also Figure 1 , Figure 5 and Figure 6 As shown, it also includes a water collection tray 7, which is disposed at the bottom of the evaporator 5. Since the evaporator 5 is inclined relative to the air outlet 101, in this embodiment, the water collection tray 7 is preferably also inclined in the horizontal direction. Specifically, Figure 6 Based on the indicated orientation, the side of the water receiving tray 7 closest to the air outlet 101 is the low side, and the side away from the air outlet 101 is the high side. The vertical distance between the air outlet 101 and the top of the low side of the water receiving tray 7 is L1, and the vertical distance between the air outlet 101 and the second end 202 of the guide plate 2 is L2. The distance L2 satisfies: L1 < L2 < 1.5L1.

[0057] In this embodiment, the second end 202 of the guide plate 2 is positioned slightly higher than the top of the drip tray 7. This ensures that the airflow guided by the guide plate 2 can fully flow over the surface of the evaporator 5, achieving efficient heat exchange and preventing the airflow from prematurely leaving the evaporator 5, which would lead to insufficient heat exchange. Simultaneously, maintaining a certain distance between the second end 202 of the guide plate 2 and the top of the drip tray 7 effectively prevents condensate from splashing out of the drip tray 7, avoiding impact on the normal operation of the air conditioner and the cleanliness of the indoor environment. The drip tray 7 and the evaporator 5 are integrated, and their relative positions and angles are fixed. However, the folded edge 221 of the drip tray 7 may slightly obstruct the airflow. This embodiment uses the drip tray 7 as a reference to better set the distances L1 and L2.

[0058] The table below shows the airflow distribution on the windward side of evaporator 5. Copper pipe 1 in the table represents the bottom copper pipe of evaporator 5, and copper pipe 42 represents the top copper pipe of evaporator 5. The standard deviation effectively reflects the uniformity of the airflow distribution in evaporator 5. Before and after installing the baffle 2, the standard deviation of the airflow distribution percentage decreased from 1.33 to 0.89. This utility model's baffle 2 effectively solves the problem of poor heat exchange performance in evaporator 5 caused by uneven airflow. Combined with... Figures 7 to 9 As shown, in the air conditioner without the deflector 2 installed, the airflow is concentrated in the upper and middle parts of the evaporator 5. With the deflector 2 installed, the airflow distribution in the lower and middle parts of the evaporator 5 increases, from... Figure 8 It can be concluded that the air guiding device can evenly guide the air blown out by the fan 1 to the windward side of the evaporator 5, especially the easily overlooked areas such as the bottom of the evaporator 5. This solves the problems of insufficient air volume and uneven air field distribution at the bottom of the evaporator 5 in traditional air-cooled air conditioners, so that all areas of the evaporator 5 can be fully covered by airflow, improving heat exchange efficiency. By optimizing the air field distribution, the delivered air is more uniform, avoiding local areas from being too cold or too hot, and improving the uniformity of indoor temperature.

[0059]

[0060]

[0061]

[0062] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0063] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above are only preferred embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A flow guiding device, installed at the air outlet (101) of a fan (1), characterized in that, include: The deflector (2) and the enclosure (3); The enclosure (3) is installed on the fan (1) on the air supply path of the air outlet (101). The first end (201) of the guide plate (2) is connected to the fan (1), and the second end (202) of the guide plate (2) is inclined toward the central axis of the air outlet (101). The second end (202) of the guide plate (2) and the enclosure (3) together form a guide air duct (4), which is connected to the air outlet (101).

2. The flow guiding device according to claim 1, characterized in that, With the cross-section of the flow guiding device as the projection plane, the flow guiding plate (2) includes a first panel (21) and a second panel (22) connected to each other. The end of the first panel (21) away from the second panel (22) is connected to the fan (1). The end of the second panel (22) away from the first panel (21) is inclined toward the central axis of the air outlet (101). The second panel (22) and the surrounding plate (3) together form the flow guiding duct (4).

3. The flow guiding device according to claim 2, characterized in that, The first panel (21) has an included angle α between the wall surface facing the air outlet (101) and the wall surface facing the second panel (22) has an included angle α between 150° and 170°.

4. The flow guiding device according to claim 2, characterized in that, The fan (1) includes a fan mounting plate (11), and the guide plate (2) also includes a flange (23). One side of the first panel (21) overlaps with the outer wall of the fan mounting plate (11), and the flange (23) is provided on the other side of the first panel (21). The first panel (21) is detachably connected to the fan mounting plate (11) through the flange (23).

5. The flow guiding device according to claim 4, characterized in that, The first panel (21) has an angle b between the wall surface away from the air outlet (101) and the flange (23), and the angle b ranges from 80° to 100°.

6. The flow guiding device according to claim 2, characterized in that, The second panel (22) has folded edges (221) on both sides along its length, and the folded edges (221) are detachably connected to the surrounding panel (3).

7. The flow guiding device according to claim 1, characterized in that, The second end (202) of the guide plate (2) is provided with a stacked plate (24), and the stacked plate (24) is located on the wall surface of the guide plate (2) away from the air outlet (101).

8. The flow guiding device according to claim 1, characterized in that, The enclosure (3) includes a first side plate (31), a second side plate (32) and a third side plate (33) connected in sequence. The guide plate (2) is arranged opposite to the second side plate (32). The two sides of the guide plate (2) in the length direction are respectively connected to the first side plate (31) and the third side plate (33).

9. An air conditioner, comprising an evaporator (5), a fan (1), a flow guide device, and a casing (6), characterized in that, The air guiding device is the air guiding device according to any one of claims 1 to 8. The evaporator (5) is inclinedly arranged in the housing (6). The fan (1) is arranged on the air inlet side of the evaporator (5). The air guiding device guides the airflow to the windward surface of the evaporator (5).

10. The air conditioner according to claim 9, characterized in that, It also includes a water receiving tray (7), which is located at the bottom of the evaporator (5). The vertical distance between the air outlet (101) and the top of the water receiving tray (7) is L1, and the vertical distance between the air outlet (101) and the second end (202) of the guide plate (2) is L2. The distance L2 satisfies: L1 < L2 < 1.5L1.

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