A ducted air conditioner

Abstract

A ducted air conditioner. The ducted air conditioner comprises a main body provided with an air duct, an indoor air inlet and an indoor air outlet; a fan and a heat exchanger are sequentially arranged in the air duct from the indoor air inlet to the indoor air outlet, and an intermediate air area is formed between the fan and the heat exchanger; wherein the intermediate air area is provided with an end portion flow guide area and a middle portion flow guide area, the end portion flow guide area is arranged to guide the air flow to blow to an end portion area of the heat exchanger in the height direction, and the middle portion flow guide area is arranged to guide the air flow to blow to a middle portion area of the heat exchanger in the height direction. In the running state of the ducted air conditioner, the end portion flow guide area guides the air flow to blow to the end portion area of the heat exchanger in the height direction, and the middle portion flow guide area guides the air flow to blow to the middle portion area of the heat exchanger in the height direction, so that the overall air blowing of the heat exchanger is uniformized, which can effectively improve the heat exchange uniformity and actual heat exchange efficiency of the heat exchanger, the deviation between the actual heat exchange efficiency and the theoretical heat exchange efficiency of the ducted air conditioner is smaller, and the actual heat exchange efficiency is closer to the theoretical heat exchange efficiency.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment, specifically to a ducted air conditioner and an air conditioning unit. Background Technology

[0002] Existing ducted air conditioners, when operating in heating or cooling mode, exhibit a certain deviation between their actual heat exchange efficiency and theoretical heat exchange efficiency; that is, the actual heat exchange efficiency is always less than the theoretical heat exchange efficiency.

[0003] How to improve the actual heat exchange efficiency of ducted air conditioners and make the actual heat exchange efficiency closer to the theoretical heat exchange efficiency has always been a technical problem that those skilled in the art have been committed to solving. Summary of the Invention

[0004] Analysis revealed that during the airflow process within the duct, the airflow is mostly concentrated in the middle region of the heat exchanger (where the wind speed reaches over 5 m / s). The airflow through the upper and lower regions of the heat exchanger is extremely low (less than 0.5 m / s), resulting in almost no airflow in these areas. Consequently, the heat exchange effect in the upper and lower regions is very poor, causing the actual heat exchange efficiency of the ducted air conditioner to be lower than the theoretical heat exchange efficiency.

[0005] The main objective of this invention is to provide a ducted air conditioner whose actual heat exchange efficiency during operation is closer to the theoretical heat exchange efficiency.

[0006] The main objective of this invention is to provide an air conditioner.

[0007] To achieve the above objectives, the ducted air conditioner proposed in this embodiment of the invention includes: a main body, having an air duct, an indoor air inlet, and an indoor air outlet; a fan and a heat exchanger, which are sequentially arranged in the air duct from the indoor air inlet to the indoor air outlet, forming an intermediate air zone between the fan and the heat exchanger; wherein, the intermediate air zone has an end guide zone and a middle guide zone, the end guide zone being configured to guide the air stream to the end region of the heat exchanger in the height direction, and the middle guide zone being configured to guide the air stream to the middle region of the heat exchanger in the height direction.

[0008] In some exemplary embodiments, the intermediate wind zone is provided with a guide plate, which separates the end guide zone and the middle guide zone in the intermediate wind zone.

[0009] In some exemplary embodiments, the guide plate includes an upper guide plate, which is disposed between the centerline of the intermediate wind zone and the top wall of the intermediate wind zone and forms an upper end guide zone with the top wall of the intermediate wind zone. The upper guide plate and the bottom wall of the intermediate wind zone form the middle guide zone. The end guide zone includes the upper end guide zone.

[0010] In some exemplary embodiments, the guide plate includes a lower guide plate, which is disposed between the centerline of the intermediate wind zone and the bottom wall of the intermediate wind zone and forms a lower end guide zone with the bottom wall of the intermediate wind zone. The lower guide plate and the top wall of the intermediate wind zone form the middle guide zone. The end guide zone includes the lower end guide zone.

[0011] In some exemplary embodiments, the guide plate includes an upper guide plate and a lower guide plate. The upper guide plate is disposed between the centerline of the intermediate wind zone and the top wall of the intermediate wind zone, and forms an upper end guide zone with the top wall of the intermediate wind zone. The lower guide plate is disposed between the centerline of the intermediate wind zone and the bottom wall of the intermediate wind zone, and forms a lower end guide zone with the bottom wall of the intermediate wind zone. The middle guide zone is formed between the upper guide plate and the lower guide plate. The end guide zone includes the upper end guide zone and the lower end guide zone.

[0012] In some exemplary embodiments, the guide plate is a curved plate.

[0013] In some exemplary embodiments, the angle between the section of the guide plate facing the heat exchanger and the centerline of the intermediate air zone is 1 degree to 70 degrees.

[0014] In some exemplary embodiments, the distance between the guide vane and the centerline of the intermediate wind zone is 0.1H to 0.4H, where H is the height of the intermediate wind zone.

[0015] In some exemplary embodiments, the distance between the two ends of the guide plate is 10mm to 120mm in the direction of airflow transmission.

[0016] In some exemplary embodiments, at least one of the inner top surface and inner bottom surface of the intermediate air zone is provided with a curved diffuser surface, the convex surface of the curved diffuser surface facing the end of the heat exchanger.

[0017] In some exemplary embodiments, the angle between the curved diffuser surface and the centerline of the intermediate wind zone is 1 degree to 70 degrees.

[0018] In some exemplary embodiments, the inner top surface of the intermediate air zone is provided with an upper curved diffusion surface, the convex surface of the upper curved diffusion surface facing the upper end of the heat exchanger, and the inner bottom surface of the intermediate air zone is provided with a lower curved diffusion surface, the convex surface of the lower curved diffusion surface facing the lower end of the heat exchanger. The curved diffusion surface includes the upper curved diffusion surface and the lower curved diffusion surface.

[0019] In some exemplary embodiments, the diffusion angle formed between the upper curved diffusion surface and the lower curved diffusion surface is 20 degrees to 150 degrees, and the heat exchanger is located within the range included by the diffusion angle.

[0020] In some exemplary embodiments, the heat exchanger is a V-shaped heat exchanger, the fan includes a cross-flow impeller, the opening of the V-shaped heat exchanger faces the intermediate air zone, the indoor air inlet is located on the bottom wall of the main body, and the indoor air outlet is located on the side wall of the main body.

[0021] The air conditioner proposed in the embodiments of the present invention includes the ducted air conditioner described in any of the above embodiments.

[0022] The ducted air conditioner provided in this embodiment of the invention, in operation, has an end guide zone that guides the air jet to the end region of the heat exchanger in the height direction, and a middle guide zone that guides the air jet to the middle region of the heat exchanger in the height direction, so that the air jet of the heat exchanger is uniform. This can effectively improve the heat exchange uniformity and actual heat exchange efficiency of the heat exchanger. The deviation between the actual heat exchange efficiency and the theoretical heat exchange efficiency of the ducted air conditioner is smaller, and the actual heat exchange efficiency is closer to the theoretical heat exchange efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figures 1 to 3 This is a cross-sectional structural diagram of the duct machine described in some embodiments of the present invention.

[0025] in, Figures 1 to 3 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0026] 100 Main body, 110 Air duct, 111 Indoor air inlet, 112 Indoor air outlet, 113 Middle air zone, 114 Upper guide zone, 115 Middle guide zone, 116 Lower guide zone, 117 Upper guide plate, 118 Lower guide plate, 119 Upper curved diffuser, 120 Lower curved diffuser, 200 Fan, 300 Heat exchanger, 310 Upper area, 320 Middle area, 330 Lower area.

[0027] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0030] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection. "Connection" can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0033] The duct air conditioner proposed in the embodiments of the present invention, such as Figures 1 to 3 As shown, it includes: a main body 100, which is provided with an air duct 110, an indoor air inlet 111 and an indoor air outlet 112, the air duct 110 connecting the indoor air inlet 111 and the indoor air outlet 112; a fan 200 and a heat exchanger 300, which are arranged sequentially in the air duct 110 from the indoor air inlet 111 to the indoor air outlet 112, the fan 200 being adjacent to the indoor air inlet 111 and the heat exchanger 300 being adjacent to the indoor air outlet 112, forming an intermediate air zone 113 between the fan 200 and the heat exchanger 300; wherein, the intermediate air zone 113 is provided with an end guide zone and a middle guide zone 115, the end guide zone being configured to guide the air stream to the end area of ​​the heat exchanger 300 in the height direction, and the middle guide zone 115 being configured to guide the air stream to the middle area 320 of the heat exchanger 300 in the height direction.

[0034] In operation, the ducted air conditioner guides the airflow in the end guide zone to blow the airflow towards the end region of the heat exchanger 300 in the height direction, and the middle guide zone 115 guides the airflow towards the middle region 320 of the heat exchanger 300 in the height direction, so that the airflow of the heat exchanger 300 is uniform. This can effectively improve the heat exchange uniformity and actual heat exchange efficiency of the heat exchanger 300. The deviation between the actual heat exchange efficiency and the theoretical heat exchange efficiency of the ducted air conditioner is smaller, and the actual heat exchange efficiency is closer to the theoretical heat exchange efficiency.

[0035] In some exemplary embodiments, such as Figures 1 to 3 As shown, the intermediate wind zone 113 is equipped with a guide plate, which divides the intermediate wind zone 113 into an end guide zone and a middle guide zone 115.

[0036] In some examples, the deflector only includes the upper deflector 117 (see...) Figures 1 to 3 (For understanding), the upper guide plate 117 is located between the centerline of the intermediate air zone 113 (located on the axis of the air duct 110) and the top wall of the intermediate air zone 113, and forms an upper end guide zone 114 with the top wall of the intermediate air zone 113. The upper guide plate 117 and the bottom wall of the intermediate air zone 113 form a middle guide zone 115. The end guide zone includes the upper end guide zone 114. The upper end guide zone 114 is configured to guide the air jet to blow towards the upper end region 310 of the heat exchanger 300 in the height direction. The end region includes the upper end region 310.

[0037] In some embodiments, the upper guide plate 117 is a curved plate, with the concave side of the upper guide plate 117 facing upwards and the convex side tilted downwards, so that the upper guide plate 117 can better guide the airflow. Alternatively, the curved plate can be an arc-shaped plate or a folded plate, etc., all of which can achieve the purpose of this application. Their intent does not depart from the design concept of this invention, and will not be elaborated further here; all should fall within the protection scope of this application.

[0038] In some embodiments, the angle C between the plate segment of the upper guide plate 117 facing the heat exchanger 300 and the centerline of the intermediate air zone 113 is set to 1 degree to 70 degrees, so that the upper guide plate 117 can better guide the airflow to flow towards the upper end region 310 of the heat exchanger 300.

[0039] In some embodiments, the distance H1 between the upper guide plate 117 and the centerline of the intermediate air zone 113 is set to 0.1H to 0.4H to ensure that the upper guide plate 117 better guides the airflow toward the upper end region 310 of the heat exchanger 300, where H is the height of the intermediate air zone 113.

[0040] In some embodiments, the distance E between the two ends of the upper guide plate 117 is set to 10mm to 120mm in the airflow direction to ensure that the upper guide plate 117 better guides the airflow to flow towards the upper end region 310 of the heat exchanger 300.

[0041] The upper guide plate 117 may be a single plate; or it may be a plurality of plates spaced vertically apart. Both of these can achieve the purpose of this application, and their intent does not depart from the design concept of this invention. They will not be elaborated further here, and all should fall within the protection scope of this application.

[0042] In other examples, the deflector only includes the lower deflector 118 (see [reference]). Figures 1 to 3 (For understanding), the lower guide plate 118 is located between the centerline of the intermediate air zone 113 and the bottom wall of the intermediate air zone 113, and forms a lower end guide zone 116 with the bottom wall of the intermediate air zone 113. The lower guide plate 118 and the top wall of the intermediate air zone 113 form a middle guide zone 115. The end guide zone includes the lower end guide zone 116. The lower end guide zone 116 is configured to guide the air jet to blow towards the lower end region 330 of the heat exchanger 300 in the height direction. The end region includes the lower end region 330.

[0043] In some embodiments, the lower guide plate 118 is a curved plate, with the concave side of the lower guide plate 118 facing downwards and the convex side facing upwards, so that the lower guide plate 118 can better guide the airflow. Alternatively, the curved plate can be an arc-shaped plate or a folded plate, etc., all of which can achieve the purpose of this application. Their intent does not depart from the design concept of this invention, and will not be elaborated further here; all should fall within the protection scope of this application.

[0044] In some embodiments, the angle D between the plate segment of the lower guide plate 118 facing the heat exchanger 300 and the centerline of the intermediate air zone 113 is set to 1 degree to 70 degrees, so that the lower guide plate 118 can better guide the airflow to flow towards the lower end region 330 of the heat exchanger 300.

[0045] In some embodiments, the distance H2 between the lower guide vane 118 and the centerline of the intermediate air zone 113 is set to 0.1H to 0.4H to ensure that the lower guide vane 118 better guides the airflow toward the lower end region 330 of the heat exchanger 300, where H is the height of the intermediate air zone 113.

[0046] In some embodiments, the distance F between the two ends of the lower guide plate 118 is set to 10mm to 120mm in the airflow direction to ensure that the lower guide plate 118 better guides the airflow to flow towards the lower end region 330 of the heat exchanger 300.

[0047] The lower guide plate 118 may be a single unit; or it may be a plurality of units spaced apart vertically. Both of these configurations can achieve the purpose of this application and do not depart from the design concept of this invention. They will not be elaborated further here and should all fall within the protection scope of this application.

[0048] In some other examples, such as Figures 1 to 3 As shown, the deflector includes an upper deflector 117 and a lower deflector 118. The upper deflector 117 is disposed between the centerline of the intermediate wind zone 113 and the top wall of the intermediate wind zone 113, forming an upper end deflector zone 114 with the top wall of the intermediate wind zone 113. The lower deflector 118 is disposed between the centerline of the intermediate wind zone 113 and the bottom wall of the intermediate wind zone 113, forming a lower end deflector zone 116 with the bottom wall of the intermediate wind zone 113. A middle deflector zone 115 is formed between the upper deflector 117 and the lower deflector 118. The end guide region includes an upper end guide region 114 and a lower end guide region 116. The upper end guide region 114 is configured to guide the air jet to blow towards the upper end region 310 of the heat exchanger 300 in the height direction. The middle guide region 115 is configured to guide the air jet to blow towards the middle region 320 of the heat exchanger 300 in the height direction. The lower end guide region 116 is configured to guide the air jet to blow towards the lower end region 330 of the heat exchanger 300 in the height direction. The end region includes the upper end region 310 and the lower end region 330.

[0049] In some embodiments, such as Figures 1 to 3As shown, both the upper guide plate 117 and the lower guide plate 118 are curved plates. The concave side of the upper guide plate 117 faces upward and the convex side faces downward, thus enabling the upper guide plate 117 to better guide the airflow. The concave side of the lower guide plate 118 faces downward and the convex side faces upward, thus enabling the lower guide plate 118 to better guide the airflow. Alternatively, the curved plate can be an arc-shaped plate or a folded plate, etc., all of which can achieve the purpose of this application. Their intent does not depart from the design concept of this invention, and will not be elaborated further here; all should fall within the protection scope of this application.

[0050] In some embodiments, such as Figure 3 As shown, the angle C between the plate segment of the upper guide plate 117 facing the heat exchanger 300 and the centerline of the intermediate air zone 113 is set to 1 degree to 70 degrees, so that the upper guide plate can better guide the airflow to the upper end region 310 of the heat exchanger 300; the angle D between the plate segment of the lower guide plate 118 facing the heat exchanger 300 and the centerline of the intermediate air zone 113 is set to 1 degree to 70 degrees, so that the lower guide plate 118 can better guide the airflow to the lower end region 330 of the heat exchanger 300.

[0051] In some embodiments, such as Figure 3 As shown, the distance H1 between the upper guide plate 117 and the centerline of the intermediate air zone 113 is set to 0.1H to 0.4H to ensure that the upper guide plate 117 better guides the airflow towards the upper end region 310 of the heat exchanger 300, where H is the height of the intermediate air zone 113; the distance H2 between the lower guide plate 118 and the centerline of the intermediate air zone 113 is set to 0.1H to 0.4H to ensure that the lower guide plate 118 better guides the airflow towards the lower end region 330 of the heat exchanger 300, where H is the height of the intermediate air zone 113.

[0052] In some embodiments, such as Figure 3 As shown, in the direction of airflow transmission, the distance E between the two ends of the upper guide plate 117 is set to 10mm to 120mm to ensure that the upper guide plate 117 better guides the airflow to flow towards the upper end region 310 of the heat exchanger 300; in the direction of airflow transmission, the distance F between the two ends of the lower guide plate 118 is set to 10mm to 120mm to ensure that the lower guide plate 118 better guides the airflow to flow towards the lower end region 330 of the heat exchanger 300.

[0053] It can be, such as Figures 1 to 3 As shown, the upper guide vane 117 includes one; or it may include multiple upper guide vanes 117 spaced vertically; it may be, as... Figures 1 to 3 As shown, the lower guide plate 118 includes one; or it may include multiple lower guide plates 118 spaced vertically; all of the above can achieve the purpose of this application, and their purpose has not departed from the design concept of this invention, and will not be repeated here, and should all fall within the protection scope of this application.

[0054] In some exemplary embodiments, such as Figures 1 to 3 As shown, at least one of the inner top surface and inner bottom surface of the intermediate air zone 113 is provided with a curved diffuser surface. The convex surface of the curved diffuser surface faces the end of the heat exchanger 300, and the curved diffuser surface also guides the air jet to blow towards the end region of the heat exchanger 300.

[0055] In some examples, such as Figures 1 to 3 As shown, the inner top surface of the intermediate air zone 113 is provided with an upper curved diffuser surface 119. The convex surface of the upper curved diffuser surface 119 faces the upper end of the heat exchanger 300. Under the action of the upper curved diffuser surface 119 and the upper guide plate 117, the upper end guide zone 114 can better guide the air jet to the upper end region 310 of the heat exchanger 300. The inner bottom surface of the intermediate air zone 113 is provided with a lower curved diffuser surface 120. The convex surface of the lower curved diffuser surface 120 faces the lower end of the heat exchanger 300. Under the action of the lower curved diffuser surface 120 and the lower guide plate 118, the lower end guide zone 116 can better guide the air jet to the lower end region 330 of the heat exchanger 300. The curved diffuser includes an upper curved diffuser 119 and a lower curved diffuser 120. These surfaces enlarge the intermediate air zone 113 in the vertical direction, resulting in a larger outlet air range towards the heat exchanger 300. This disperses the concentrated airflow within the intermediate air zone 113, releasing pressure earlier and allowing for more uniform airflow through the heat exchanger 300. The airflow velocity through the middle region 320 is approximately 4 m / s, while the velocity through the upper and lower regions 310 and 330 is approximately 3 m / s.

[0056] In some examples, such as Figure 3 As shown, the angle A between the upper curved diffuser surface 119 and the centerline of the intermediate air zone 113 is set to 1 degree to 70 degrees, so that the upper end guide zone 114 can better guide the air jet to the upper end region 310 of the heat exchanger 300; the angle B between the lower curved diffuser surface 120 and the centerline of the intermediate air zone 113 is set to 1 degree to 70 degrees, so that the lower end guide zone 116 can better guide the air jet to the lower end region 330 of the heat exchanger 300.

[0057] In some examples, such as Figure 3 As shown, the diffusion angle G formed between the upper curved diffusion surface 119 and the lower curved diffusion surface 120 is set to 20 degrees to 150 degrees. The heat exchanger 300 is located within the range of the diffusion angle. This can better ensure the uniformity of the overall airflow of the heat exchanger 300, effectively improve the heat exchange uniformity and actual heat exchange efficiency of the heat exchanger 300, and make the deviation between the actual heat exchange efficiency and the theoretical heat exchange efficiency of the duct air conditioner smaller, with the actual heat exchange efficiency being closer to the theoretical heat exchange efficiency.

[0058] In some embodiments, such as Figures 1 to 3 shown, the heat exchanger 300 is a V-shaped heat exchanger, the blower 200 includes a cross-flow impeller, the opening of the V-shaped heat exchanger faces the middle air area 113, the indoor air inlet 111 is provided on the bottom wall of the main body 100, and the indoor air outlet 112 is provided on the side wall of the main body 100. This solution can reduce the size of the air duct machine.

[0059] The air conditioner (not shown in the figure) proposed in the embodiments of the present invention includes the air duct machine described in any of the above embodiments.

[0060] This air conditioner has all the advantages of the air duct machine provided in any of the above embodiments, which will not be elaborated here.

[0061] In summary, for the air duct machine provided in the embodiments of the present invention, in the operating state, the end flow guiding area guides the air beam to blow towards the end area of the heat exchanger in the height direction, and the middle flow guiding area is used to guide the air beam to blow towards the middle area of the heat exchanger in the height direction, making the overall air blowing of the heat exchanger uniform. This can effectively improve the heat transfer uniformity and the actual heat transfer efficiency of the heat exchanger. The deviation between the actual heat transfer efficiency and the theoretical heat transfer efficiency of the air duct machine is smaller, and the actual heat transfer efficiency is closer to the theoretical heat transfer efficiency.

[0062] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "edge", "opposite", "four corners", "perimeter", "the structure of the character 'kou'", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0063] In the description of the embodiments of the present invention, unless otherwise clearly defined and limited, the terms "connected", "directly connected", "indirectly connected", "fixedly connected", "installed", "assembled" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; the terms "installed", "connected", "fixedly connected" can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0064] Although the disclosed embodiments of the present invention are as above, the described content is only the embodiments adopted for the convenience of understanding the present invention, and is not used to limit the present invention. Any person skilled in the art within the scope of the present invention can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed by the present invention. However, the patent protection scope of the present invention shall still be defined by the appended claims.

[0065] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made under the concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A ducted air conditioner, characterized in that, include: The main body is equipped with air ducts, indoor air inlets, and indoor air outlets; The fan and heat exchanger are arranged sequentially in the air duct from the indoor air inlet to the indoor air outlet, and an intermediate air zone is formed between the fan and the heat exchanger; The intermediate air zone is provided with an end guide zone and a middle guide zone. The end guide zone is configured to guide the air jet to the end region of the heat exchanger in the height direction, and the middle guide zone is configured to guide the air jet to the middle region of the heat exchanger in the height direction. At least one of the inner top surface and inner bottom surface of the intermediate air zone is provided with a curved diffuser surface, and the convex surface of the curved diffuser surface faces the end of the heat exchanger. The inner top surface of the intermediate air zone is provided with an upper curved diffusion surface, the convex surface of which faces the upper end of the heat exchanger. The inner bottom surface of the intermediate air zone is provided with a lower curved diffusion surface, the convex surface of which faces the lower end of the heat exchanger. The curved diffusion surface includes the upper curved diffusion surface and the lower curved diffusion surface.

2. The duct air conditioner according to claim 1, characterized in that, The intermediate wind zone is equipped with a guide plate, which separates the end guide zone and the middle guide zone in the intermediate wind zone.

3. The duct air conditioner according to claim 2, characterized in that, The guide vane includes an upper guide vane, which is disposed between the centerline of the intermediate wind zone and the top wall of the intermediate wind zone, forming an upper end guide vane area with the top wall of the intermediate wind zone. The upper guide vane and the bottom wall of the intermediate wind zone form the middle guide vane area. The end guide vane area includes the upper end guide vane area; or The guide vane includes a lower guide vane, which is disposed between the centerline of the intermediate wind zone and the bottom wall of the intermediate wind zone, forming a lower end guide zone with the bottom wall of the intermediate wind zone. The lower guide vane and the top wall of the intermediate wind zone form the middle guide zone. The end guide zone includes the lower end guide zone; or The guide plate includes an upper guide plate and a lower guide plate. The upper guide plate is disposed between the centerline of the intermediate wind zone and the top wall of the intermediate wind zone, and forms an upper end guide zone with the top wall of the intermediate wind zone. The lower guide plate is disposed between the centerline of the intermediate wind zone and the bottom wall of the intermediate wind zone, and forms a lower end guide zone with the bottom wall of the intermediate wind zone. The middle guide zone is formed between the upper guide plate and the lower guide plate. The end guide zone includes the upper end guide zone and the lower end guide zone.

4. The duct air conditioner according to claim 2, characterized in that, The guide plate is a curved plate.

5. The duct air conditioner according to claim 2, characterized in that, The angle between the section of the guide vane facing the heat exchanger and the centerline of the intermediate air zone is 1 degree to 70 degrees; and / or The distance between the guide vane and the centerline of the intermediate wind zone is 0.1H to 0.4H, where H is the height of the intermediate wind zone; and / or In the direction of airflow transmission, the distance between the two ends of the guide plate is 10mm to 120mm.

6. The ducted air handling unit according to any one of claims 1 to 5, characterized in that, The angle between the curved diffuser surface and the centerline of the intermediate wind zone is 1 degree to 70 degrees.

7. The ductwork machine according to any one of claims 1 to 5, characterized in that, The diffusion angle formed between the upper and lower curved diffusion surfaces is 20 degrees to 150 degrees, and the heat exchanger is located within the range of the diffusion angle.

8. The ducted air handling unit according to any one of claims 1 to 5, characterized in that, The heat exchanger is a V-shaped heat exchanger, the fan includes a cross-flow impeller, the opening of the V-shaped heat exchanger faces the middle air zone, the indoor air inlet is located on the bottom wall of the main body, and the indoor air outlet is located on the side wall of the main body.

9. An air conditioner, characterized in that, Including the duct unit as described in any one of claims 1 to 8.

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