An air outlet assembly with automatically switchable channels and a bladeless fan

By using an electric mechanism to drive the duct connectors to automatically switch between hot and cold air channels, the problem of complex hot and cold air duct switching structures and crossflow issues in existing technologies is solved, achieving efficient and stable duct switching and enhancing product competitiveness.

CN122106922APending Publication Date: 2026-05-29NINGBO SINGFUN ELECTRIC APPLIANCE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NINGBO SINGFUN ELECTRIC APPLIANCE
Filing Date
2026-02-10
Publication Date
2026-05-29

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  • Figure CN122106922A_ABST
    Figure CN122106922A_ABST
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Abstract

The application relates to an air outlet assembly with an automatically switchable air channel and a bladeless fan, the air outlet assembly comprising a connecting seat, an electric mechanism and an air channel connecting piece arranged on the connecting seat; the connecting seat is provided with a hot air channel and a cold air channel; the air channel connecting piece is movably arranged in the connecting seat to be connected with the hot air channel or the cold air channel; the electric mechanism is movably connected with the air channel connecting piece to drive the air channel connecting piece to be connected with the hot air channel or the cold air channel. The air outlet assembly provided by the application can drive the hot air channel and the cold air channel to be switched by designing the electric mechanism, the structure is simpler, the experience of the product can be effectively improved, and the competitiveness of the product is improved.
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Description

Technical Field

[0001] This application relates to an air outlet assembly with automatically switchable channels and a bladeless fan. Background Technology

[0002] Existing air outlet components are designed with hot and cold air channels that can be switched. However, the existing hot and cold air channel switching structure is usually manually operated, relatively complex, prone to jamming during switching, and has low transmission efficiency. Chinese patent CN120889763A discloses a bladeless fan capable of switching between hot and cold air. It uses a knob to drive two transmission arms to rotate, causing two split-flow cylinders to move outwards or inwards synchronously, thus achieving hot and cold air channel switching. However, in this switching structure, the transmission between the knob and the transmission arms is prone to jamming, resulting in incomplete switching and cross-flow of hot and cold air. Furthermore, manual operation for switching hot and cold air channels does not meet current market demands and reduces the product's competitiveness. Summary of the Invention

[0003] The purpose of this application is to design an air outlet assembly and bladeless fan with automatically switchable channels, aiming to solve the problem of complex hot and cold air duct switching structure of existing air outlet assemblies, avoid crossflow between hot and cold air ducts, and improve the competitiveness of the product.

[0004] This application relates to an air outlet assembly with automatically switchable channels, including a connecting base and an electric mechanism and an air duct connector disposed on the connecting base; the connecting base is provided with a hot air channel and a cold air channel; the air duct connector is movably disposed in the connecting base to connect with the hot air channel or the cold air channel; the electric mechanism is movably connected to the air duct connector to drive the air duct connector to connect with the hot air channel or the cold air channel.

[0005] In some embodiments, the cold air duct includes a first air outlet duct and a second air outlet duct; the duct connector includes a first duct connector and a second duct connector; the first duct connector is connected to the first air outlet duct and to the air inlet duct in the connector seat; the second duct connector is connected to the second air outlet duct and to the air inlet duct; or, the first air outlet duct is closed by the first duct connector and the second air outlet duct is closed by the second duct connector.

[0006] In some embodiments, the electric mechanism includes a motor, a first rack, a second rack, and a gear; the gear is connected to the output end of the motor, and the gear meshes with the first rack and the second rack respectively; the first rack is also connected to a first air duct connector, and the second rack is also connected to a second air duct connector.

[0007] In some embodiments, the first air duct connector is provided with a first connecting post, and the second air duct connector is provided with a second connecting post; one end of the first rack is connected to the first connecting post, and one end of the second rack is connected to the second connecting post.

[0008] In some embodiments, the connector includes a housing, within which a motor bracket is provided; the motor is mounted on the motor bracket.

[0009] In some embodiments, the electric mechanism further includes a button and an electric control board; the button is disposed on the connector and electrically connected to the electric control board; the electric control board is disposed inside the connector and electrically connected to the motor.

[0010] In some embodiments, the connector includes a duct housing, and a first duct connector and a second duct connector are disposed within the duct housing via a slide rail.

[0011] In some embodiments, the connector is provided with a hot air outlet, which is connected to a hot air channel; a heating component is provided inside the hot air channel.

[0012] In some embodiments, the air outlet assembly further includes an air outlet frame, which has an air outlet frame support, an air outlet on the air outlet frame, and a flow channel inside the air outlet frame support, which is connected to the air outlet.

[0013] This application also provides a bladeless fan, including an air outlet assembly, wherein the air outlet assembly is the aforementioned air outlet assembly with automatically switchable channels.

[0014] The air outlet assembly and bladeless fan with automatically switchable channels proposed in this application have the following technical advantages:

[0015] (1) The air outlet component proposed in this application uses an electric mechanism to drive the switching between the hot air channel and the cold air channel. The structure is simpler and more practical, which can effectively improve the user experience of the product and thus enhance the competitiveness of the product.

[0016] (2) The air outlet component proposed in this application has linear motion in the running trajectory of the rack of the electric mechanism and the running trajectory of the air duct connector. This can efficiently drive the air duct connector to move in and out, avoid incomplete switching between the hot air channel and the cold air channel, and solve the problems of air leakage and crossflow in the air duct of the connector.

[0017] (3) The bladeless fan proposed in this application can achieve stable hot and cold air switching by adopting the above-mentioned air outlet components, thereby improving the user experience and competitiveness of the product. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a bladeless fan according to this application.

[0019] Figure 2This is an exploded view of an air outlet component with automatically switchable channels, as described in this application.

[0020] Figure 3 This is a partial cross-sectional view of an air outlet assembly with automatically switchable channels, as described in this application. Figure 1 .

[0021] Figure 4 This is a partial cross-sectional view of an air outlet assembly with automatically switchable channels, as described in this application. Figure 2 .

[0022] Figure 5 This is a partial cross-sectional view of an air outlet assembly with automatically switchable channels, as described in this application. Figure 3 .

[0023] Figure 6 This application Figure 5 A magnified view of a portion of the image.

[0024] Figure 7 This is a partial cross-sectional view of an air outlet assembly with automatically switchable channels, as described in this application. Figure 4 .

[0025] Figure 8 This is a partial cross-sectional view of an air outlet assembly with automatically switchable channels, as described in this application. Figure 5 .

[0026] Figure 9 This is a schematic diagram of the internal structure of an air outlet component with automatically switchable channels, as described in this application. Figure 1 .

[0027] Figure 10 This is a schematic diagram of the internal structure of an air outlet component with automatically switchable channels, as described in this application. Figure 2 .

[0028] Figure 11 This is a schematic diagram of the first air duct connector and the second air duct connector of this application.

[0029] Figure 12 This is a schematic diagram of the first and second air duct connectors and their interaction with the electric mechanism. Figure 1 .

[0030] Figure 13 This is a schematic diagram of the first and second air duct connectors and their interaction with the electric mechanism. Figure 2 .

[0031] In the diagram: 1. Base assembly; 2. Column assembly; 3. Connecting seat; 31. Connecting seat upper shell; 32. Connecting seat lower shell; 33. Upper air duct shell; 34. Lower air duct shell; 341. Air inlet channel; 35. First air duct connector; 351. First connecting port; 352. First connecting column; 353. First connecting wall; 36. Second air duct connector; 361. Second connecting port; 362. Second connecting column; 363. Second connecting wall; 37. Electric mechanism; 371. Motor; 372. First rack; 373. Second rack; 374. Gear; 38. Motor bracket; 39. Heating element; 310. Heating element front cover; 311. Air inlet; 312. Hot air outlet; 313. Slide rail; 4. Air outlet frame; 41. First air outlet frame; 42. Second air outlet frame; 44. Air outlet frame support column; 43. Cold air outlet. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be arbitrarily combined with each other.

[0033] like Figure 1-3 As shown, this application proposes an air outlet assembly with automatically switchable channels, including a connecting base 3, an electric mechanism 37 disposed on the connecting base 3, and an air duct connector. The connecting base 3 has a hot air channel and a cold air channel; the air duct connector is movably disposed within the housing of the connecting base 3 to connect with either the hot air channel or the cold air channel. The electric mechanism 37 is movably connected to the air duct connector to drive the air duct connector to connect with either the hot air channel or the cold air channel, realizing the switching between the hot air channel and the cold air channel. The air outlet assembly proposed in this application, by providing an electric mechanism to drive the air duct connector to freely switch between the hot air channel and the cold air channel, realizes a cold air or hot air operation mode, with a simpler structure, reduced manual operation intensity, and improved product grade and competitiveness.

[0034] like Figure 1-3As shown in Figures 7-10, in some embodiments, the cold air duct includes a first air outlet duct and a second air outlet duct, which are symmetrically arranged on the left and right sides of the connecting seat 3, respectively. Correspondingly, the duct connectors include a first duct connector 35 and a second duct connector 36, which are telescopically disposed within the connecting seat 3. The connecting seat 3 is provided with an air inlet duct 341. Specifically, the first duct connector 35 is connected to the first air outlet duct and to the air inlet duct 341 within the connecting seat, thereby connecting the cold air duct on the first side; the second duct connector 36 is connected to the second air outlet duct and to the air inlet duct 341, thereby connecting the cold air duct on the second side. Alternatively, the first air outlet duct is sealed by the first duct connector 35, and the second air outlet duct is sealed by the second duct connector 36, so that the air inlet duct 341 is connected to the hot air duct. Specifically, as... Figure 11 As shown, one end of the first air duct connector 35 is provided with a first connecting port 351 and a first connecting wall 353, and one end of the second air duct connector 36 is provided with a second connecting port 361 and a first connecting wall 363. The first air duct connector 35 and the second air duct connector 36 can be joined together to seal the hot air passage. At this time, the first air duct connector 35 is connected to the first air outlet passage and to the air inlet passage 341 in the connecting seat 3. The second air duct connector 36 is connected to the second air outlet passage and to the air inlet passage 341 in the connecting seat 3. When the first air duct connector 35 and the second air duct connector 36 are joined, the first connecting wall 353 at one end of the first air duct connector 35 fits against the second connecting wall 363 at one end of the second air duct connector 36, the first connecting port 351 connects to the air inlet passage 341, and the first air duct connector 35 can connect to the first air outlet passage to achieve the connection of the first air outlet passage. The second connecting port 361 connects to the air inlet channel, and the second air duct connector 36 connects to the second air outlet channel to achieve the connection of the second air outlet channel. It should be noted that the first air duct connector 35 and the second air duct connector 36 can simultaneously connect to the first and second air outlet channels, achieving air outlet from both sides, which is convenient to operate. The first air duct connector 35 and the second air duct connector 36 can be separated from each other, allowing the first air duct connector 35 to close the first air outlet channel, that is, the first connecting wall 353 of the first air duct connector 35 is sealed to the first air outlet channel, restricting the connection between the first air outlet channel and the air inlet channel 341; simultaneously, the second air duct connector 36 can close the second air outlet channel, allowing the second connecting wall 363 of the second air duct connector 36 to be sealed to the second air outlet channel, thereby restricting the connection between the second air outlet channel and the air inlet channel 341. At this time, the hot air channel is directly connected to the air inlet channel, achieving hot air outlet.

[0035] like Figure 2 , 9As shown in Figure -13, in some embodiments, the electric mechanism 37 includes a motor 371, a rack, and a gear 374; wherein the rack may include a first rack 372 and a second rack 373. Specifically, the gear 374 is connected to the output end of the motor 371 and rotates with the output end. The gear 374 also meshes with the first rack 372 and the second rack 373 respectively, so as to simultaneously drive the first rack 372 and the second rack 373 to retract and extend. The first rack 372 is also connected to the first air duct connector 35 to drive the first air duct connector 35 to reciprocate on one side within the connecting seat 3. The second rack 373 is also connected to the second air duct connector 36 to drive the second air duct connector 36 to reciprocate on the other side within the connecting seat 3. In the above structure, the running trajectory of the rack and the running trajectory of the air duct connector are both linear motions, which can efficiently drive the air duct connector to retract and extend, avoid incomplete switching between the hot air channel and the cold air channel, and solve the problems of air leakage and crossflow in the air duct within the connecting seat.

[0036] like Figure 11-13 As shown, in some embodiments, the first air duct connector 35 is provided with a first connecting post 352, and the second air duct connector 36 is provided with a second connecting post 362. Specifically, one end of the first rack 372 is connected to the first connecting post 352 to drive the first air duct connector 35 to reciprocate. Correspondingly, one end of the second rack 373 is connected to the second connecting post 362 to drive the second air duct connector 36 to reciprocate.

[0037] like Figure 2 As shown, in some embodiments, the connecting seat 3 includes an upper connecting seat shell 31 and a lower connecting seat shell 32; the upper connecting seat shell 31 and the lower connecting seat shell 32 are joined together to form a housing. A motor bracket 38 is fixedly installed inside the housing, and a motor 371 is mounted on the motor bracket 38. The connecting seat 3 includes an air duct housing, which includes an upper air duct housing 33 and a lower air duct housing 34, which are joined together to form an air inlet channel 341 inside. Specifically, the first air duct connector 35 and the second air duct connector 36 are symmetrically arranged on both sides of the air duct housing.

[0038] like Figure 2 As shown, in some embodiments, the electric mechanism 37 may further include buttons and an electronic control board. The buttons may be located at the upper end of the housing of the connecting base 3 and electrically connected to the electronic control board. The electronic control board is located inside the connecting base 3 and electrically connected to the motor 371. With this design, the electric mechanism 37 can be controlled via buttons, making operation convenient.

[0039] like Figure 5-6As shown, in some embodiments, the connecting seat 3 includes a duct housing, and the first duct connector and the second duct connector are disposed in the duct housing via a slide rail 313, thereby enabling them to reciprocate stably within the duct housing.

[0040] like Figure 2 , 4 As shown in Figures 5 and 11-12, in some embodiments, the connecting base 3 is provided with a hot air outlet 312, which is connected to a hot air channel. A heating assembly is provided within the hot air channel, comprising a heating element 39 and a front cover 310 for the heating element. The front cover 310 is located at the hot air outlet 312. The heating element 39 is located inside the front cover 310 and can be a PTC heating element. The connecting base 3 is also provided with an air inlet channel 341, one end of which is connected to a hot air channel or a cold air channel, and the other end of which is connected to an external air duct of the connecting base 3, thereby enabling air intake.

[0041] like Figure 1-3 As shown, in some embodiments, the air outlet assembly with automatically switchable channels further includes an air outlet frame 4, which has an air outlet frame support 44. The air outlet frame 4 is an arc-shaped air outlet frame with multiple cold air outlets 43. Specifically, the air outlet frame support 44 has a flow channel inside; one end of the air outlet frame support 44 is connected to the air outlet frame 4, and its flow channel is connected to the cold air outlets 43 through the connecting channel inside the air outlet frame 4. The other end of the air outlet frame support 44 is connected to the air duct housing inside the connecting seat 3, and its flow channel is connected to the cold air channel. Preferably, the air outlet frame 4 includes a first air outlet frame 41 and a second air outlet frame 42, which are symmetrically arranged on the left and right sides of the connecting seat 3 to achieve circumferential air outlet.

[0042] like Figure 1 As shown, this application also proposes a bladeless fan, including a base assembly 1, a column assembly 2, and an air outlet assembly. The column assembly 2 is disposed on the base assembly 1, and the air outlet assembly is disposed on the column assembly 2. The air outlet assembly is the aforementioned air outlet assembly with automatically switchable channels. Specifically, the base assembly 1 contains a fan, and the column assembly 2 contains a transmission air duct. The connecting seat 3 of the air outlet assembly is disposed on the column assembly 2, thereby connecting the other end of the air inlet channel to the transmission air duct within the column assembly 2.

[0043] Although the embodiments disclosed in this application are as described above, the content is merely for the purpose of facilitating understanding of this application and is not intended to limit this application. Any person skilled in the art to which this application pertains may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this application; however, the scope of patent protection of this application shall still be determined by the scope defined in the appended claims.

Claims

1. An air outlet assembly with automatically switchable channels, characterized in that, The air outlet assembly includes a connecting base, an electric mechanism, and an air duct connector disposed on the connecting base; the connecting base is provided with a hot air channel and a cold air channel; the air duct connector is movably disposed within the connecting base to connect with the hot air channel or the cold air channel; the electric mechanism is movably connected to the air duct connector to drive the air duct connector to connect with the hot air channel or the cold air channel.

2. The air outlet assembly with automatically switchable channels according to claim 1, characterized in that, The cold air duct includes a first air outlet duct and a second air outlet duct; the duct connector includes a first duct connector and a second duct connector; the first duct connector is connected to the first air outlet duct and also to the air inlet duct within the connector; the second duct connector is connected to the second air outlet duct and also to the air inlet duct; or... The first air outlet channel is closed by the first air duct connector, and the second air outlet channel is closed by the second air duct connector.

3. The air outlet assembly with automatically switchable channels according to claim 2, characterized in that, The electric mechanism includes a motor, a first rack, a second rack, and a gear; the gear is connected to the output end of the motor, and the gear meshes with the first rack and the second rack respectively. The first rack is also connected to the first air duct connector, and the second rack is also connected to the second air duct connector.

4. The air outlet assembly with automatically switchable channels according to claim 3, characterized in that, The first air duct connector is provided with a first connecting post, and the second air duct connector is provided with a second connecting post; one end of the first rack is connected to the first connecting post, and one end of the second rack is connected to the second connecting post.

5. The air outlet assembly with automatically switchable channels according to claim 3, characterized in that, The connector includes a housing, and a motor bracket is provided inside the housing; the motor is mounted on the motor bracket.

6. The air outlet assembly with automatically switchable channels according to claim 3, characterized in that, The electric mechanism further includes a button and an electric control board; the button is disposed on the connecting base and electrically connected to the electric control board; the electric control board is disposed inside the connecting base and electrically connected to the motor.

7. The air outlet assembly with automatically switchable channels according to claim 2, characterized in that, The connecting seat includes a duct housing, and the first duct connector and the second duct connector are disposed in the duct housing via a slide rail.

8. The air outlet assembly with automatically switchable channels according to claim 1, characterized in that, The connecting seat is provided with a hot air outlet, which is connected to the hot air channel; a heating component is provided in the hot air channel.

9. The air outlet assembly with automatically switchable channels according to any one of claims 1-8, characterized in that, The air outlet assembly further includes an air outlet frame, which has an air outlet frame support column and an air outlet. The air outlet frame support column has a flow channel, which is connected to the air outlet.

10. A bladeless fan, comprising an air outlet assembly, characterized in that, The air outlet component is the air outlet component with automatically switchable channels as described in any one of claims 1-9.