Floor type air conditioner indoor unit air duct part condensate water collecting structure

By designing a water collection trough and water guiding structure on the motor bracket, the problem of condensation dripping from the air duct parts of the air conditioner indoor unit is solved, achieving safe and effective collection and discharge of condensate, and improving the user experience.

CN224567602UActive Publication Date: 2026-07-28SICHUAN CHANGHONG AIR CONDITIONER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN CHANGHONG AIR CONDITIONER CO LTD
Filing Date
2025-08-21
Publication Date
2026-07-28

AI Technical Summary

Technical Problem

The air duct components of split floor-standing air conditioners have poor thermal insulation properties, which causes condensation to form and drip, affecting the user experience. Furthermore, the existing drip tray design cannot completely collect condensation, and it is easy for it to drip onto the fan and motor.

Method used

An upward-facing protrusion is designed on the motor bracket to form a water collection trough. Combined with the water guiding structure and drain pipe, this ensures that condensate is collected in the water collection trough. The air duct parts are then fixed to the motor bracket with screws, reducing the number of parts and the assembly difficulty.

Benefits of technology

It effectively collects and drains condensate from duct components, preventing it from dripping onto the fan and motor, simplifying the assembly process and improving the user experience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224567602U_ABST
Patent Text Reader

Abstract

The utility model discloses a floor type air conditioner indoor unit air duct part condensation water collection structure relates to air conditioning field, solves how to safely collect the problem of the condensation water produced by air duct part. The utility model adopts the technical scheme that floor type air conditioner indoor unit air duct part condensation water collection structure, the air duct part is fixedly installed in air conditioner indoor unit shell, the lower end of air duct part is fixedly connected with motor support, the top surface of motor support is equipped with the boss that protrudes upwards, the middle part of boss is equipped with the pivot through -hole, and the motor support bottom is fixedly installed with motor, and the pivot of motor is passed pivot through -hole and fixedly installed with the fan blade, and the periphery of motor support forms the water collecting groove of annular, and the vertical projection of the water dripping part of air duct part is all located in water collecting groove, and the edge or bottom of water collecting groove is equipped with the water outlet. The motor support directly forms the water collecting groove, avoids the space occupation problem caused by the separately increased water collecting part, reduces the part quantity, and reduces assembly operation difficulty.
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Description

Technical Field

[0001] This utility model relates to the field of air conditioning, specifically a condensate collection structure for the air duct components of a floor-standing air conditioner indoor unit. Background Technology

[0002] In split-type floor-standing air conditioner indoor units, the duct components are made of plastic with poor heat insulation properties. When the indoor unit is cooling, the air temperature inside the duct components is low, and the duct components themselves are also low, making it easy for condensation to form on the outer surface of the duct components. To prevent excessive condensation, insulation material is usually glued or fixed to the outer, top, and bottom surfaces of the duct components. This insulation material is generally a soft pad or molded insulation parts. However, this method can only reduce the amount of condensation, not prevent it from forming. In addition, the duct components have a complex structure, making it difficult for the insulation material to completely cover them. Even with long-term cooling operation, the duct components still produce a significant amount of condensation, leading to a continuous accumulation and dripping of condensate, and even condensation flowing onto the floor of the user's room, seriously affecting the user experience.

[0003] The centerline of the duct components is arranged vertically. To collect and drain condensate, a drip tray can be added directly below the duct components, allowing condensate from the outside of the duct components to fall into the tray and collect before flowing out to the outside through a drain pipe. Since a fan needs to be installed at the bottom of the duct components, the motor driving the fan blades, the motor bracket, and other components will inevitably occupy space at the bottom of the duct components, limiting the installation space for the drip tray, which can only be placed directly below the fan. Due to the relatively large distance between the drip tray and the duct components, condensate droplets are prone to falling onto the fan and motor. Increasing the horizontal dimensions of the drip tray can increase the collection area, but condensate droplets are still easily affected by airflow and may still fall onto the fan and motor, posing a risk of condensate entering the fan and motor. Utility Model Content

[0004] This utility model provides a condensate collection structure for duct components of a floor-standing air conditioner indoor unit, solving the problem of how to safely collect condensate generated by duct components.

[0005] The technical solution adopted in this utility model is as follows: a condensate collection structure for the air duct components of a floor-standing air conditioner indoor unit. The front of the indoor unit casing has an air outlet, and the back of the indoor unit casing has an air inlet. An air duct component is fixedly installed inside the indoor unit casing. The center line of the air duct component is arranged vertically. The air duct component has an air inlet and an air outlet. The air inlet of the air duct component corresponds to the air inlet of the indoor unit casing, and the air outlet of the air duct component corresponds to the air outlet of the indoor unit casing. A motor bracket is fixedly connected to the lower end of the air duct component. The top surface of the motor bracket has an upwardly protruding boss. A shaft through hole is provided in the middle of the boss. A motor is fixedly installed at the bottom of the motor bracket. The shaft of the motor passes through the shaft through hole and a fan blade is fixedly installed. The fan blade is located inside the air duct component. An upwardly turned edge is provided around the motor bracket. An annular water collection groove is formed between the upwardly turned edge and the boss. The vertical projection of the dripping part of the air duct component is entirely located in the water collection groove. A water outlet is provided at the edge or bottom of the water collection groove.

[0006] To facilitate the fixing of the duct components and the motor bracket with screws, the duct components are further provided with at least two upper screw posts at their lower ends, and the water receiving groove of the motor bracket is provided with a lower screw post that matches the upper screw posts. The duct components and the motor bracket are connected by screws.

[0007] To further reduce condensate splashing into the shaft through hole, the lower end face of the duct component abuts against the edge of the boss on the motor bracket, the shaft through hole is located at the center of the boss, and the centerline of the duct component passes through the shaft through hole.

[0008] To further control the downward flow direction of condensate from the duct components, the outer surface of the duct components is provided with a water guiding structure. For example, the water guiding structure is a water guiding groove or water guiding rib on the outer surface of the duct component.

[0009] To facilitate the installation of the motor at the bottom of the motor bracket, the motor is further secured to the bottom surface of the motor bracket with screws.

[0010] Condensate collected in the water collection tank is discharged directly or indirectly through the drain pipe. Specifically: the outlet of the water collection tank of the motor bracket is connected to the drain pipe; or, a water collection tray is provided directly below the outlet of the water collection tank of the motor bracket. The water collection tray is fixedly installed on at least one of the three: the indoor unit casing, the motor, and the motor bracket. The lowest point of the water collection tray is provided with a water outlet connector and connected to the drain pipe.

[0011] Condensate splashing into the water collection tank is a problem. To mitigate this splashing, the water collection tank of the motor bracket is further lined with a porous material layer. For example, the porous material layer could be a cotton cloth layer, a foam layer, or a sponge layer.

[0012] The beneficial effects of this utility model are as follows: The motor bracket directly forms a water receiving groove, avoiding the space occupation problem caused by adding a separate water receiving component, reducing the number of parts, and lowering the difficulty of assembly. The distance between the water receiving groove and the lower end of the air duct component is very close, so the condensed water droplets from the air duct component fall into the water receiving groove and hardly splash outside the groove. The vertical projection of the dripping part of the air duct component is located inside the water receiving groove, allowing the condensed water from the air duct component to fall completely into the groove. The condensed water from the air duct component collects in the water receiving groove and is then discharged through the outlet of the groove for centralized treatment. The top surface of the motor bracket has an upwardly protruding boss, and the shaft through hole is located on the boss. The condensed water in the water receiving groove will not overflow the boss, preventing condensed water from flowing into the motor through the shaft through hole. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the back of a floor-standing air conditioner indoor unit.

[0014] Figure 2 This is a structural diagram of the front of a floor-standing air conditioner indoor unit.

[0015] Figure 3 This is a schematic diagram of the internal structure of a floor-standing air conditioner indoor unit.

[0016] Figure 4 This is a vertical cross-sectional diagram of a floor-standing air conditioner indoor unit.

[0017] Figure 5 yes Figure 4 A magnified view of region A in the middle.

[0018] Figure 6 yes Figure 3 and Figure 4 A schematic diagram of the motor bracket in the diagram.

[0019] Figure 7 yes Figure 3 and Figure 4 A schematic diagram of the structure of the air duct components.

[0020] Figure reference numerals: 1. Indoor unit housing; 2. Air duct parts; 2-1. Upper screw post; 3. Motor bracket; 3-1. Boss; 3-2. Shaft through hole; 3-3. Water inlet; 3-4. Lower screw post; 3-5. Motor; 4. Water tray; 5. Water outlet connector; 5-1. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] like Figures 1-2 As shown, this utility model relates to a condensate collection structure for the air duct components of a floor-standing air conditioner indoor unit. The indoor unit casing 1 has an air outlet on its front side, for example, see [reference needed]. Figure 2The air outlets are rectangular and located in the middle and upper part of the front of the indoor unit casing 1; the air inlet is located on the back of the indoor unit casing 1, for example, see... Figure 2 The air inlets are rectangular and located in the middle and upper part of the back of the indoor unit casing 1, with a grille at the inlet. A duct component 2 is fixedly installed inside the indoor unit casing 1. The centerline of the duct component 2 is arranged vertically. The duct component 2 has an air inlet and an air outlet. The air inlet of the duct component 2 corresponds to the air inlet of the indoor unit casing 1, and the air outlet of the duct component 2 corresponds to the air outlet of the indoor unit casing 1, thus forming a complete, closed, and continuous airflow path.

[0023] A motor bracket 3 is fixedly connected to the lower end of the duct component 2. The motor bracket 3 is used to mount the motor 4 and also serves to collect condensate from the duct component 2. (See also...) Figure 5 and Figure 6 The top surface of the motor bracket 3 has an upwardly protruding boss 3-1, and the middle of the boss 3-1 has a shaft through hole 3-2. The motor 4 is fixedly installed at the bottom of the motor bracket 3. The shaft of the motor 4 passes through the shaft through hole 3-2 from bottom to top and is fixedly installed with fan blades. The fan blades are located inside the air duct part 2 and are used to provide power for the airflow within the air duct part 2. In order to facilitate the installation of the motor 4 at the bottom of the motor bracket 3, the motor 4 is generally fixed to the bottom surface of the motor bracket 3 by screws or bolts. Therefore, it is best to also provide screw posts on the bottom surface of the motor bracket 3.

[0024] The motor bracket 3 has an upward-curved edge around its perimeter, forming a water-blocking edge. This upward-curved edge and the boss 3-1 form an annular water-collecting groove 3-3, which collects condensate from the duct component 2. The top surface of the upward-curved edge is preferably on the same horizontal plane as the top surface of the boss 3-1. To prevent condensate from entering the motor 4 through the shaft through-hole 3-2, the lower end face of the duct component 2 abuts against the edge of the boss 3-1 of the motor bracket 3. After the motor bracket 3 is fixedly connected to the lower end face of the duct component 2, a seal is maintained between the lower end face of the duct component 2 and the boss 3-1 of the motor bracket 3. This abutment between the lower end face of the duct component 2 and the edge of the boss 3-1 of the motor bracket 3 also allows for a larger horizontal dimension of the water-collecting groove 3-3. For example, the lower end face of the air duct part 2 is annular, the boss 3-1 is also circular, the pivot hole 3-2 is located at the center of the boss 3-1, and the center line of the air duct part 2 passes through the pivot hole 3-2.

[0025] The shape and size of the motor bracket 3 in the horizontal direction are determined according to the shape of the inner cavity of the indoor unit casing 1 and the space occupied by other necessary parts. To ensure that the condensate from the duct component 2 can completely fall into the water collection tank 3-3, the vertical projection of the dripping part of the duct component 2 is entirely within the water collection tank 3-3. The water collection tank 3-3 has an outlet 3-4 at its edge or bottom, through which the condensate in the water collection tank 3-3 flows out. To facilitate the outflow of condensate, the bottom surface of the water collection tank 3-3 is inclined, and the outlet 3-4 is located at the lowest point of the water collection tank 3-3.

[0026] Condensate collected in the water collection tank 3-3 is discharged directly or indirectly through the drain pipe. For example, the outlet 3-4 of the water collection tank 3-3 of the motor bracket 3 is connected to a drain pipe, and the condensate collected in the water collection tank 3-3 is discharged directly through the drain pipe. Another example is... Figure 5 As shown, a water receiving tray 5 is provided directly below the water outlet 3-4 of the water receiving tank 3-3 of the motor bracket 3. The water receiving tray 5 is fixedly installed on at least one of the indoor unit casing 1, the motor 4 and the motor bracket 3. The lowest point of the water receiving tray 5 is provided with a water outlet connector 5-1 and connected to a drain pipe. The condensate collected in the water receiving tank 3-3 first flows into the water receiving tray 5 and then is discharged through the drain pipe.

[0027] Condensation on the outer surface of the duct component 2 falls into the water collection tank 3-3 as droplets. To control the downward flow direction of the condensation on the duct component 2, a water guiding structure can also be provided on the outer surface of the duct component 2. This water guiding structure directs the flow path of the condensation, allowing it to flow downwards along a predetermined path; for example, the water guiding structure could be a water guide groove or a water guide rib on the outer surface of the duct component 2. The water collection tank 3-3 is very close to the lower end of the duct component 2, so the condensation droplets falling into the water collection tank 3-3 hardly splash outside. To further prevent splashing of the condensation droplets, a porous material layer is also laid inside the water collection tank 3-3 of the motor bracket 3. For example, the porous material layer could be a cotton cloth layer, a foam layer, or a sponge layer, and the porous material layer is adhered to the inside of the water collection tank 3-3.

[0028] To facilitate the fixed connection of the motor bracket 3 to the lower end of the air duct component 2, the motor bracket 3 and the air duct component 2 are fixedly connected by screws. See, for example... Figure 6 and Figure 7 The lower end of the air duct component 2 is provided with at least two upper screw posts 2-1, and the water receiving groove 3-3 of the motor bracket 3 is provided with lower screw posts 3-5 that are adapted to the upper screw posts 2-1. That is, the side of the motor bracket 3 facing the air duct component 2 is provided with lower screw posts 3-5 that are adapted to the number and position of the upper screw posts 2-1. The air duct component 2 and the motor bracket 3 are connected by screws.

Claims

1. A condensate collection structure for the duct components of a floor-standing air conditioner indoor unit, wherein an air outlet is provided on the front of the indoor unit casing (1), an air inlet is provided on the back of the indoor unit casing (1), and a duct component (2) is fixedly installed inside the air conditioner indoor unit casing (1). The center line of the duct component (2) is arranged vertically, and the duct component (2) is provided with an air inlet and an air outlet. The air inlet of the duct component (2) corresponds to the air inlet of the indoor unit casing (1), and the air outlet of the duct component (2) corresponds to the air outlet of the indoor unit casing (1). The structure is characterized in that: The lower end of the air duct component (2) is fixedly connected to a motor bracket (3). The top surface of the motor bracket (3) is provided with an upward protrusion (3-1). The middle part of the protrusion (3-1) is provided with a shaft through hole (3-2). The bottom of the motor bracket (3) is fixedly installed with a motor (4). The shaft of the motor (4) passes through the shaft through hole (3-2) and is fixedly installed with a fan blade. The fan blade is located inside the air duct component (2). The motor bracket (3) is provided with an upward flange. The upward flange and the protrusion (3-1) form an annular water receiving groove (3-3). The vertical projection of the dripping part of the air duct component (2) is entirely located inside the water receiving groove (3-3). The edge or bottom of the water receiving groove (3-3) is provided with a water outlet (3-4).

2. The condensate collection structure for the indoor unit duct components of a floor-standing air conditioner as described in claim 1, characterized in that: The lower end of the air duct component (2) is provided with at least two upper screw posts (2-1), and the water receiving groove (3-3) of the motor bracket (3) is provided with a lower screw post (3-5) that is compatible with the upper screw posts (2-1). The air duct component (2) and the motor bracket (3) are connected by screws.

3. The condensate collection structure for the indoor unit duct components of a floor-standing air conditioner as described in claim 2, characterized in that: The lower end face of the air duct component (2) abuts against the edge of the boss (3-1) of the motor bracket (3), the shaft through hole (3-2) is located at the center of the boss (3-1), and the center line of the air duct component (2) passes through the shaft through hole (3-2).

4. The condensate collection structure for the indoor unit duct components of a floor-standing air conditioner as described in claim 1, characterized in that: The outer surface of the air duct component (2) is provided with a water guiding structure.

5. The condensate collection structure for the indoor unit duct components of a floor-standing air conditioner as described in claim 4, characterized in that: The water guiding structure is the water guiding groove or water guiding rib on the outer side of the air duct part (2).

6. The condensate collection structure for the indoor unit duct components of a floor-standing air conditioner as described in claim 1, characterized in that: The motor (4) is fixedly mounted on the bottom surface of the motor bracket (3) by screws.

7. The condensate collection structure for the indoor unit duct components of a floor-standing air conditioner as described in claim 1, characterized in that: The outlet (3-4) of the water tank (3-3) of the motor bracket (3) is connected to a drain pipe; or, a water tray (5) is provided directly below the outlet (3-4) of the water tank (3-3) of the motor bracket (3). The water tray (5) is fixedly installed on at least one of the indoor unit casing (1), the motor (4) and the motor bracket (3). The lowest point of the water tray (5) is provided with a water outlet connector (5-1) and connected to a drain pipe.

8. The condensate collection structure for the air duct components of a floor-standing air conditioner indoor unit as described in any one of claims 1 to 7, characterized in that: A porous material layer is also laid in the water receiving groove (3-3) of the motor bracket (3).

9. The condensate collection structure for the indoor unit duct components of a floor-standing air conditioner as described in claim 8, characterized in that: Porous material layers include cotton cloth layers, foam layers, or sponge layers.