Household appliance air duct assembly
By introducing air guide tubes and transmission components into the air duct assembly of household appliances, and using motor drive to achieve multi-angle airflow direction and volume adjustment, the problem of limited airflow direction adjustment range in existing technologies is solved, and the flexibility and comfort of the air duct assembly are improved.
Patent Information
- Application Number
- CN202520494941.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-20
AI Technical Summary
The airflow direction adjustment structure of existing household appliance air duct assemblies can only be adjusted within a small angle range, which is difficult to meet the user's airflow direction and force needs, resulting in the problem of direct airflow.
A duct assembly including a main duct, port plate and air adjustment mechanism was designed. By setting an air guide tube and transmission components in the main duct, the air guide tube is driven to rotate by a motor to achieve multi-angle air direction and air volume adjustment. Combined with the design of air guide hood and air outlet slot, the air outlet direction and air speed of the duct can be flexibly changed.
It enables flexible adjustment of the airflow direction and speed of the air duct assembly, which can meet the needs of different users, avoid direct airflow, and improve the user experience.
Smart Images

Figure CN223840625U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of air duct assembly technology, and more particularly to an air duct assembly for household appliances. Background Technology
[0002] Residential central air conditioning can cool or heat the entire house. The duct assembly is an important component of it. The duct assembly is usually composed of a main duct defined by the duct wall. One end is connected to the air conditioning system and the other end extends to the duct outlet. Its main function is to guide, distribute and regulate airflow to meet the ventilation, cooling and heating needs of the space.
[0003] Existing air duct assemblies typically only allow for airflow adjustment within a small angle range, using blade tilting. This makes it difficult to achieve the desired airflow direction and force during use, often resulting in direct airflow.
[0004] Therefore, this application proposes a household appliance air duct assembly. Utility Model Content
[0005] The purpose of this application is to provide a household appliance air duct assembly in response to the technical problems pointed out in the background art.
[0006] The technical solution of this application: A household appliance air duct assembly, including a main air duct, one end of which is an air outlet and the other end is an air inlet, and further comprising:
[0007] A port plate is installed inside the air outlet, and a pair of second air outlet slots are provided on the port plate. The main air duct has first air outlet slots at both the upper and lower ends of the end near the air outlet.
[0008] An air-adjusting mechanism is installed inside the main air duct and located inside the port plate. It is used to change the air direction at multiple angles. The air-adjusting mechanism includes a pair of air guide tubes rotatably connected inside the main air duct. The side wall of the air guide tube is provided with a first turning groove, a second turning groove and a main air inlet groove. When the second turning groove is connected to the second air outlet groove, the first turning groove is offset from the first air outlet groove.
[0009] Preferably, the end of the main air duct is provided with a transmission component that drives the two air guides to rotate in the same direction. Both ends of the two air guides are fixedly connected to turntables. The two pairs of turntables are respectively rotatably connected to the inner walls of the two sides of the main air duct. A motor is installed on one side wall of the main air duct, and the output shaft of the motor is fixedly connected to one of the turntables.
[0010] Preferably, the first turning groove, the second turning groove, and the main air inlet groove on the two air guide ducts are symmetrically arranged, and the two main air inlet grooves always face the air inlet end of the main air duct.
[0011] Preferably, both the first and second air outlet slots are fixedly embedded with air guide hoods, the inner end of the air guide hoods is arc-shaped, and the inner end of the air guide hoods slides in contact with the corresponding air guide tubes.
[0012] Preferably, the transmission component includes a rotating shaft fixedly connected to the ends of two turntables on the same side. The ends of the two rotating shafts penetrate the side wall of the main air duct and are fixedly fitted with a toothed disc. The two toothed discs mesh and drive each other. The side wall of the main air duct is connected to a protective shell covering the outside of the two toothed discs for safety protection.
[0013] Preferably, air guide plates are provided on the outer sides of both second air outlet slots, and the air guide plates are inclined.
[0014] Preferably, when the overlap between the second steering groove and the second air outlet groove increases, the overlap between the first steering groove and the first air outlet groove decreases.
[0015] Compared with the prior art, this application has the following beneficial technical effects:
[0016] This application provides an air-adjusting mechanism on the inner side of the main air duct near the air outlet, and opens a second air outlet slot and a first air outlet slot on the upper and lower walls of the port plate and the air outlet end of the main air duct. By adjusting the air guide hood, the air direction or volume can be changed. When the two second air outlet slots are discharging air normally, the two first air outlet slots are offset from the two first deflection slots (the first air outlet slots do not discharge air). When the two second air outlet slots do not discharge air, the two first deflection slots are aligned with the two first air outlet slots (the two first air outlet slots discharge air normally). This allows for rapid changes in air direction or volume.
[0017] This application can also change the air outlet speed according to needs. When the second deflection groove and the second air outlet groove are gradually offset, the air outlet of the second air outlet groove becomes smaller. When the air outlet of the second air outlet groove gradually decreases, the air outlet of the first air outlet groove gradually increases, so as to meet the usage needs of different groups of people. Attached Figure Description
[0018] Figure 1 This is a 3D view of a household appliance air duct assembly;
[0019] Figure 2 This is a cross-sectional view of the air outlet end of the main air duct in this application;
[0020] Figure 3 This is a schematic diagram of the transmission component in this application;
[0021] Figure 4 This is a schematic diagram of the air regulating mechanism in this application.
[0022] Attached reference numerals: 1. Main duct; 2. Air outlet; 3. Port plate; 41. First air outlet slot; 42. Second air outlet slot;
[0023] 5. Air guide shroud; 6. Air adjustment mechanism; 61. Air guide tube; 62. First deflector slot; 63. Main air inlet slot; 64. Second deflector slot;
[0024] 7. Turntable; 8. Transmission component; 81. Shaft; 82. Gear disc; 83. Protective shell. Detailed Implementation
[0025] The technical solution of this application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.
[0027] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0028] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0030] Example
[0031] like Figures 1-4 As shown, the present application proposes a household appliance air duct assembly, including a main air duct 1, one end of which is an air outlet 2 and the other end is an air inlet.
[0032] It also includes a port plate 3 installed inside the air outlet 2. The port plate 3 has a pair of second air outlet slots 42. The main air duct 1 has first air outlet slots 41 at both the upper and lower ends near the air outlet 2, which can achieve multi-directional wind speed adjustment. The outer sides of the two second air outlet slots 42 are provided with air guide plates. The air guide plates are inclined to prevent the wind from blowing directly downwards (the air outlet 2 is usually facing downwards during installation).
[0033] It also includes an air-adjusting mechanism 6 installed inside the main air duct 1 and located inside the port plate 3, used to change the air direction at multiple angles. The air-adjusting mechanism 6 includes a pair of air guide tubes 61 rotatably connected inside the main air duct 1. The side walls of the air guide tubes 61 are provided with a first turning groove 62, a second turning groove 64, and a main air inlet groove 63. When the second turning groove 64 is aligned with the second air outlet groove 42, the first turning groove 62 is offset from the first air outlet groove 41. At this time, the two second air outlet grooves 42 discharge air normally, and the two first air outlet grooves 41 stop discharging air.
[0034] Furthermore, the end of the main air duct 1 is provided with a transmission component 8 that drives the two air guide tubes 61 to rotate in the same direction. Both ends of the two air guide tubes 61 are fixedly connected to turntables 7. The two pairs of turntables 7 are respectively rotatably connected to the inner walls on both sides of the main air duct 1. A motor is installed on one side wall of the main air duct 1. The output shaft of the motor is fixedly connected to one of the turntables 7 (the motor is not shown in the figure due to the perspective). The motor is electrically connected to an external power source.
[0035] The first turning groove 62, the second turning groove 64, and the main air inlet groove 63 on the two air guide ducts 61 are symmetrically arranged, and the two main air inlet grooves 63 always face the air inlet end of the main air duct 1. An air guide shroud 5 is fixedly embedded in both the first air outlet groove 41 and the second air outlet groove 42. The inner end of the air guide shroud 5 is arc-shaped, and the inner end of the air guide shroud 5 is in sliding contact with the corresponding air guide duct 61.
[0036] Specifically, the transmission component 8 includes rotating shafts 81 fixedly connected to the ends of two turntables 7 on the same side. The ends of both rotating shafts 81 penetrate the sidewall of the main air duct 1 and are each fixedly fitted with a gear disc 82. The two gear discs 82 mesh and drive each other. A protective shell 83 is connected to the sidewall of the main air duct 1, covering the outside of the two gear discs 82, for safety protection. When driven by the motor, the two gear discs 82 mesh and drive each other, thereby synchronously driving the two air guide tubes 61 in opposite directions.
[0037] As the overlap between the second steering groove 64 and the second air outlet groove 42 increases, the overlap between the first steering groove 62 and the first air outlet groove 41 decreases. Consequently, as the vertical airflow gradually increases, the lateral airflow gradually decreases.
[0038] The working principle of this embodiment is as follows: During installation and use, the air outlet 2 is usually facing downwards. In the initial state, the two second steering grooves 64 are respectively aligned with the two second air outlet grooves 42, and the two second air outlet grooves 42 discharge air normally. Under the action of the air guide plate, the air will be blown out at an angle. When it is necessary to adjust the air volume of the two second air outlet grooves 42, the motor is started. The output shaft of the motor rotates and drives one of the air guide tubes 61 to slowly rotate at a certain angle. Under the meshing transmission of the two gear discs 82, the other air guide tube 61 is driven to rotate synchronously. The two air guide tubes 61 rotate in opposite directions, so that the two second steering grooves 64 and the two second air outlet grooves 42 are offset by a certain angle (the two second steering grooves 64 move closer to each other), so that the two second steering grooves 64 and the two second air outlet grooves 42 are offset by a certain angle, reducing the air volume of the two second air outlet grooves 42. At this time, the two first steering grooves 62 slowly approach the two first air outlet grooves 41, so that the two first air outlet grooves 41 have a certain air volume. If the airflow from the two second air outlet slots 42 gradually decreases, the airflow from the two first air outlet slots 41 gradually increases. If the two second deflecting slots 64 are completely offset from the two second air outlet slots 42, the two second air outlet slots 42 stop discharging air. At this time, the two first deflecting slots 62 are completely aligned with the two first air outlet slots 41, and the two first air outlet slots 41 maintain normal airflow. When it is necessary to increase the airflow from the second air outlet slots 42 and decrease the airflow from the first air outlet slots 41, the motor output shaft can be rotated in the opposite direction by a certain angle. The duct assembly structure in this application has a simple design and can flexibly adjust the direction and volume of airflow, meeting the needs of different groups of people.
[0039] The above specific embodiments are merely preferred embodiments of this application. Based on the technical solutions of this application and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments. The above specific embodiments are merely explanations of this application and are not limitations on this application.
Claims
1. A household appliance air duct assembly, comprising a main air duct (1), wherein one end of the main air duct (1) is an air outlet (2) and the other end is an air inlet, characterized in that, Also includes: A port plate (3) is set inside the air outlet (2), and a pair of second air outlet slots (42) are opened on the port plate (3). The main air pipe (1) is provided with first air outlet slots (41) at the upper and lower ends of the end near the air outlet (2). An air-adjusting mechanism (6) is installed inside the main air duct (1) and located inside the port plate (3) for changing the air direction at multiple angles. The air-adjusting mechanism (6) includes a pair of air guide tubes (61) rotatably connected inside the main air duct (1). The side wall of the air guide tube (61) is provided with a first turning groove (62), a second turning groove (64) and a main air inlet groove (63). When the second turning groove (64) is connected to the second air outlet groove (42), the first turning groove (62) is offset from the first air outlet groove (41).
2. The household appliance air duct assembly according to claim 1, characterized in that, The end of the main air duct (1) is provided with a transmission component (8) that drives two air guide tubes (61) to rotate in the same direction. Both ends of the two air guide tubes (61) are fixedly connected with turntables (7). The two pairs of turntables (7) are rotatably connected to the inner walls of the two sides of the main air duct (1). A motor is installed on one side wall of the main air duct (1), and the output shaft of the motor is fixedly connected to one of the turntables (7).
3. A household appliance air duct assembly according to claim 1, characterized in that, The first turning groove (62), the second turning groove (64), and the main air inlet groove (63) on the two air guide ducts (61) are symmetrically arranged, and the two main air inlet grooves (63) always face the air inlet end of the main air duct (1).
4. A household appliance air duct assembly according to claim 3, characterized in that, Both the first air outlet groove (41) and the second air outlet groove (42) are fixedly embedded with air guide hoods (5). The inner end of the air guide hood (5) is arc-shaped, and the inner end of the air guide hood (5) slides in contact with the corresponding air guide tube (61).
5. A household appliance air duct assembly according to claim 2, characterized in that, The transmission component (8) includes a rotating shaft (81) fixedly connected to the ends of two turntables (7) on the same side. The ends of the two rotating shafts (81) penetrate the side wall of the main air duct (1) and are fixedly fitted with a toothed disc (82). The two toothed discs (82) mesh and drive each other. The side wall of the main air duct (1) is connected to a protective shell (83) covering the outside of the two toothed discs (82) for safety protection.
6. A household appliance air duct assembly according to claim 1, characterized in that, Both of the second air outlet slots (42) are provided with air guide plates on their outer sides, and the air guide plates are inclined.
7. A household appliance air duct assembly according to claim 1, characterized in that, When the overlap between the second steering groove (64) and the second air outlet groove (42) increases, the overlap between the first steering groove (62) and the first air outlet groove (41) decreases.