Fresh air indoor air duct structure and fresh air machine
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-12
AI Technical Summary
The existing fresh air system has a complex duct cover connection structure and cumbersome opening and closing operation, making it difficult to avoid backflow of air.
An elastic press-fit connector is used between the housing and the cover plate to achieve simple opening and closing of the air vent by switching between the open and closed positions. The elastic press-fit connector can also be used to automatically seal and open the air vent by switching between the housing and the cover plate.
It simplifies the opening and closing of the air vents, improves the ventilation efficiency of the air duct, avoids backflow of air, and has a simple structure that is easy to use.
Smart Images

Figure CN224230277U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fresh air technology, and in particular to a fresh air indoor duct structure and a fresh air unit. Background Technology
[0002] As a key device for indoor-outdoor air exchange, the duct structure design of through-wall fresh air systems directly affects ventilation efficiency and energy consumption control. In practical applications, the indoor air vents need to be equipped with openable and closable duct covers to meet two operating conditions: when the equipment is running, the cover is open to connect the indoor and outdoor air; when the equipment is stopped, the cover must be completely closed to prevent backflow caused by outdoor negative pressure or natural wind infiltration. In existing technologies, the connection structure of the duct cover is relatively complex, and the opening and closing operation of the duct cover is cumbersome. Utility Model Content
[0003] To address the aforementioned technical problems, this utility model provides a fresh air indoor duct structure and a fresh air unit.
[0004] In a first aspect, this utility model provides a fresh air indoor duct structure, comprising: a housing installed at a fresh air duct opening, the housing having an air outlet; a cover plate correspondingly covering the air outlet; and an elastic pressing connector disposed between the housing and the cover plate, the elastic pressing connector being pressable between an open position and a sealed position. In the open position, the elastic pressing connector drives the cover plate to separate from the air outlet; in the sealed position, the elastic pressing connector drives the cover plate to seal the air outlet.
[0005] According to the present invention, a fresh air indoor duct structure is provided, the housing includes: a housing body, the housing body being installed to the fresh air duct opening, and the housing body having the air outlet; a mounting bracket, the mounting bracket being installed to the air outlet, and an elastic pressing connector being disposed between the mounting bracket and the cover plate.
[0006] According to the present invention, a fresh air indoor duct structure is provided, wherein the mounting frame includes: a frame body, the frame body being installed to the air outlet; and an insert cylinder, the insert cylinder being connected to the frame body and extending toward one side of the cover plate.
[0007] The cover plate includes: a cover plate body adapted to the air vent; an insert post movably inserted into the insert cylinder; and an elastic pressing connector disposed between the insert post and the insert cylinder, wherein pressing the cover plate body can adjust the working state of the elastic pressing connector.
[0008] According to the present invention, a fresh air indoor duct structure includes an elastic pressing connector comprising: a first track extending to the insert post; a second track extending to the insert post, the second track being connected end-to-end with the first track to form a heart-shaped track; a first guide block disposed at one of the connection ends of the first track and the second track, the first guide block being guided from the first track to the second track; a second guide block disposed at the other connection end of the first track and the second track, the second guide block being guided from the first track to the second track; a sliding body, one end of the sliding body being connected to the bottom of the insert cylinder, and the other end of the sliding body being connected to the heart-shaped track; and a spring disposed between the bottom of the insert cylinder and the bottom of the insert post.
[0009] According to the present invention, a fresh air indoor duct structure is provided, the fresh air indoor duct structure further includes: a decorative panel, the decorative panel being rotatably connected to the housing body.
[0010] According to the present invention, a fresh air indoor duct structure is provided, the fresh air indoor duct structure further includes: a connecting shaft, the connecting shaft being disposed between the decorative panel and the housing body; and a fixing buckle, the fixing buckle being disposed between the decorative panel and the housing body, and located at the edge away from the connecting shaft.
[0011] According to the present invention, a fresh air indoor duct structure is provided, which further includes a main control box, which is connected to the housing body and located on the side away from the cover plate body.
[0012] According to the present invention, a fresh air indoor duct structure is provided, wherein the main control box includes: a housing; and a controller mounting cavity, wherein the controller mounting cavity is disposed within the housing and is used to install the fresh air unit controller.
[0013] According to the present invention, a fresh air indoor duct structure is provided, the fresh air indoor duct structure further includes: a duct, one end of which extends to the outside, and the other end of which passes through the main control box and is connected to the air outlet.
[0014] According to a second aspect of the present invention, a fresh air duct is provided, comprising the fresh air indoor duct structure as described above.
[0015] The indoor ventilation duct structure provided by this utility model includes a housing, a cover plate, and a resilient pressing connector. The housing is installed at the inlet of the fresh air duct and has an air vent. The cover plate is positioned to cover the air vent. A resilient pressing connector is provided between the cover plate and the housing. The resilient pressing connector can be pressed between an open position and a closed position. When it is necessary to open the air vent, pressing the resilient pressing connector switches it to the open position, which drives the cover plate to separate from the air vent, thus opening the air vent. When it is necessary to close the air vent, pressing the resilient pressing connector again switches it to the closed position, which drives the cover plate to close the air vent.
[0016] In this fresh air indoor duct structure, the air outlet can be blocked and opened simply by setting an elastic pressing connector between the shell and the cover plate. Its structure is relatively simple, and the user can manually press to switch the working state of the elastic pressing connector, making the operation process relatively simple.
[0017] Furthermore, the fresh air ventilator provided by this utility model, since it includes the fresh air indoor duct structure as described above, also possesses the advantages described above. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0019] Figure 1 This is a half-sectional schematic diagram of the indoor ventilation duct structure provided by this utility model.
[0020] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.
[0021] Figure 3 This is a schematic diagram of the external structure of the fresh air indoor duct structure provided by this utility model. Figure 1 .
[0022] Figure 4 This is a schematic diagram of the external structure of the fresh air indoor duct structure provided by this utility model. Figure 2 .
[0023] Figure 5 This is a schematic diagram of the shell structure in the fresh air indoor duct structure provided by this utility model.
[0024] Figure 6 This is a schematic diagram of the cover plate in the fresh air indoor duct structure provided by this utility model.
[0025] Reference numerals: 110, housing body; 120, mounting bracket; 121, frame; 122, insert cylinder; 210, cover plate body; 220, insert post; 300, elastic pressing connector; 310, first track; 320, second track; 330, first guide block; 340, second guide block; 350, sliding body; 360, spring; 400, decorative panel; 500, connecting shaft; 600, fixing buckle. Detailed Implementation
[0026] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0027] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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 the embodiments of this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0028] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.
[0029] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0030] In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples, to make the objectives, technical solutions, and advantages of the present invention clearer. The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0031] The following is combined Figures 1 to 6 This invention describes a fresh air indoor duct structure and a fresh air unit provided by an embodiment of the present invention. It should be understood that the following description is merely an illustrative embodiment of the present invention and does not constitute any particular limitation on the present invention.
[0032] An embodiment of the first aspect of this utility model provides a fresh air indoor air duct structure, such as... Figure 1 and Figure 2 As shown, it includes: a housing, which is installed at the inlet of the fresh air duct and has an air vent on it; a cover plate, which can be correspondingly covered to the air vent; and an elastic pressing connector 300, which is disposed between the housing and the cover plate. The elastic pressing connector 300 can be pressed and switched between an open position and a blocked position. In the open position, the elastic pressing connector 300 drives the cover plate to separate from the air vent. In the blocked position, the elastic pressing connector 300 drives the cover plate to block the air vent.
[0033] The indoor ventilation duct structure provided by this utility model includes a housing, a cover plate, and an elastic pressing connector 300. The housing is installed at the inlet of the fresh air duct and has an air vent. The cover plate can be correspondingly placed over the air vent. An elastic pressing connector 300 is provided between the cover plate and the housing. The elastic pressing connector 300 can be pressed and switched between an open position and a blocked position. When it is necessary to open the air vent, pressing the elastic pressing connector 300 switches it to the open position, which can drive the cover plate to separate from the air vent, so that the air vent opens. When it is necessary to block the air vent, pressing the elastic pressing connector 300 again switches it to the blocked position, which can drive the cover plate to block the air vent.
[0034] In this fresh air indoor duct structure, the air outlet can be blocked and opened by setting an elastic pressing connector 300 between the shell and the cover plate. Its structure is relatively simple, and the user can manually press to switch the working state of the elastic pressing connector 300, and its operation process is also relatively simple.
[0035] In one embodiment of the present invention, the housing includes: a housing body 110, which is installed at the fresh air duct opening and has an air vent; a mounting bracket 120, which is installed at the air vent, and an elastic pressing connector 300 is disposed between the mounting bracket 120 and the cover plate.
[0036] In one embodiment of the present invention, the mounting bracket 120 includes: a bracket body 121, which is mounted to the air vent; and an insert cylinder 122, which is connected to the bracket body 121 and extends toward one side of the cover plate.
[0037] The cover plate includes: a cover plate body 210, which is adapted to the air vent; an insert post 220, which can be movably inserted into the insert cylinder 122; and an elastic pressing connector 300 disposed between the insert post 220 and the insert cylinder 122. Pressing the cover plate body 210 can adjust the working state of the elastic pressing connector 300.
[0038] For example, such as Figures 1 to 6As shown, the casing has a square structure with a circular air vent at its center. A cylindrical body is formed at the location of the circular air vent. The cylindrical body extends in the same direction as the air duct. A mounting bracket 120 is connected to the cylindrical body. The mounting bracket 120 includes a frame 121 and an insert cylinder 122. The frame 121 has a ring structure connected to the end of the cylindrical body away from the air vent, and cross-shaped reinforcing ribs are provided on the ring structure. The insert cylinder 122 is located at the midpoint of the cross-shaped reinforcing ribs. The central axis of the insert cylinder 122 coincides with the central axis of the cylindrical body. The cover plate body 210 has a circular structure adapted to the air vent. An insert post 220 is connected to the inner side of the cover plate body 210, and the insert post 220 can be movably inserted into the inner cavity of the insert cylinder 122. An elastic pressing connector 300 is provided between the insert post 220 and the insert cylinder 122.
[0039] Pressing the cover body 210 switches the working state of the elastic pressing connector 300. That is, when the air vent needs to be opened, pressing the cover body 210 switches the elastic pressing connector 300 to the open position, at which point the cover body 210 separates from the air vent. When the air vent needs to be blocked, pressing the cover body 210 again switches the elastic pressing connector 300 to the blocking position, at which point the cover body 210 blocks the air vent.
[0040] In one embodiment of this utility model, the elastic pressing connector 300 includes: a first track 310, which extends onto the insert post 220; a second track 320, which extends onto the insert post 220, and the second track 320 and the first track 310 are connected end-to-end to form a heart-shaped track; and a first guide block 330, which is disposed at one of the connection ends of the first track 310 and the second track 320, and the first guide block 330 is formed by the first track. 310 is guided to the second track 320; the second guide block 340 is disposed at the other connection end of the first track 310 and the second track 320, and the second guide block 340 is guided from the first track 310 to the second track 320; the sliding body 350 is connected at one end to the bottom of the insert cylinder 122, and the other end of the sliding body 350 overlaps the heart-shaped track; the spring 360 is disposed between the bottom of the insert cylinder 122 and the bottom of the insert post 220.
[0041] For example, such as Figure 1 , Figure 2 and Figure 6As shown, the first track 310 and the second track 320 are connected end-to-end to form a heart-shaped track. Specifically, the concave tip and convex tip of the heart-shaped track are the connecting ends of the first track 310 and the second track 320. The concave tip is located on the side closer to the cover plate body 210, and the convex tip is located on the side farther from the cover plate body 210. A first guide block 330 is disposed at the concave tip of the heart-shaped track and is guided from the first track 310 to the second track 320. A second guide block 340 is disposed at the convex tip of the heart-shaped track and is guided from the first track 310 to the second track 320. For example, the sliding body 350 is a wire. One end of the wire is movably connected to the bottom of the insert cylinder 122, and the other end of the wire is bent and overlapped onto the heart-shaped track. A spring 360 is provided between the bottom of the insert cylinder 122 and the bottom of the insert post 220.
[0042] In actual operation, for example, in the initial state, the cover plate body 210 is in a blocked air vent state, at which time the wire is located in the concave tip of the heart-shaped track. Pressing the cover plate body 210, under the action of the spring 360 and the first guide block 330, the overlapping end of the wire can slide from the concave tip to the convex tip position via the second track 320. At this time, the cover plate body 210 separates from the air vent, thus opening the air vent. Pressing the cover plate body 210 again, under the action of the spring 360 and the second guide block 340, the overlapping end of the wire can slide from the convex tip to the concave tip position via the first track 310. At this time, the cover plate body 210 blocks the air vent.
[0043] In one embodiment of this utility model, the fresh air indoor duct structure further includes a decorative panel 400, which is rotatably connected to the housing body 110.
[0044] Furthermore, in one embodiment of this utility model, such as Figure 3 and Figure 4 As shown, the fresh air indoor duct structure also includes: a connecting shaft 500, which is disposed between the decorative panel 400 and the housing body 110; and a fixing buckle 600, which is disposed between the decorative panel 400 and the housing body 110 and located at the edge away from the connecting shaft 500.
[0045] In other words, a pivot is provided between the decorative panel 400 and the housing body 110, allowing the decorative panel 400 to be flipped relative to the housing body 110 to cover the cover plate and other structures on the housing body 110, thus serving an aesthetic purpose. A fixing clip 600 is also provided between the decorative panel 400 and the housing body 110. In use, pulling the decorative panel 400 releases the fixing clip 600, and flipping the decorative panel 400 allows the cover plate body 210 to be pressed to adjust its position. After adjustment, the decorative panel 400 can be pressed firmly to close the fixing clip 600. It should be noted that there is a certain gap between the decorative panel 400 and the housing body 110 to allow space for the cover plate body 210 to open. That is, even when the cover plate body 210 is separated from the air vent, the decorative panel 400 can still be placed over the housing body 110.
[0046] In one embodiment of this utility model, the fresh air indoor duct structure further includes a main control box, which is connected to the housing body 110 and located on the side away from the cover plate body 210.
[0047] In another embodiment of this utility model, the main control box includes: a box body; and a controller mounting cavity, which is disposed inside the housing and is used to install the fresh air unit controller.
[0048] Furthermore, in one embodiment of this utility model, the fresh air indoor duct structure further includes: an air duct, one end of which extends to the outside, and the other end of which passes through the main control box and is connected to the air outlet.
[0049] A second aspect of this utility model provides a fresh air ventilator, including the fresh air indoor duct structure described above.
[0050] Furthermore, the fresh air ventilator provided by this utility model, since it includes the fresh air indoor duct structure as described above, also possesses the advantages described above.
[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A fresh air indoor duct structure, characterized in that, include: A housing, which is installed at the inlet of the fresh air duct, and an air vent is provided on the housing; A cover plate, which can be correspondingly installed on the air vent; An elastic pressing connector (300) is disposed between the housing and the cover plate. The elastic pressing connector (300) can be pressed and switched between an open position and a blocked position. In the open position, the elastic pressing connector (300) drives the cover plate to separate from the air vent. In the blocked position, the elastic pressing connector (300) drives the cover plate to block the air vent.
2. The fresh air indoor duct structure according to claim 1, characterized in that, The housing includes: The housing body (110) is installed at the fresh air duct opening, and the housing body (110) is provided with the air vent. Mounting bracket (120) is installed to the air vent, and elastic pressing connector (300) is disposed between the mounting bracket (120) and the cover plate.
3. The fresh air indoor duct structure according to claim 2, characterized in that, The mounting bracket (120) includes: A frame (121) is installed to the air outlet; Insert cylinder (122), the insert cylinder (122) is connected to the frame (121) and extends toward the cover plate; The cover plate includes: Cover body (210), the cover body (210) is adapted to the air vent; Insertion post (220) is movable and insertable into insertion cylinder (122). Elastic pressing connector (300) is disposed between insertion post (220) and insertion cylinder (122). Pressing the cover plate body (210) can adjust the working state of elastic pressing connector (300).
4. The fresh air indoor duct structure according to claim 3, characterized in that, The elastic pressing connector (300) includes: The first track (310) is opened onto the insert post (220); The second track (320) is opened onto the insert post (220), and the second track (320) is connected end to end with the first track (310) to form a heart-shaped track together; The first guide block (330) is disposed at one of the connection ends of the first track (310) and the second track (320), and the first guide block (330) is guided from the first track (310) to the second track (320). The second guide block (340) is disposed at the other connection end of the first track (310) and the second track (320), and the second guide block (340) is guided from the first track (310) to the second track (320). A sliding body (350), one end of which is connected to the bottom of the insert (122), and the other end of which overlaps the heart-shaped track; A spring (360) is disposed between the bottom of the insert cylinder (122) and the bottom of the insert post (220).
5. The fresh air indoor duct structure according to any one of claims 2 to 4, characterized in that, The fresh air indoor duct structure also includes: Decorative panel (400), which is rotatably connected to the housing body (110).
6. The fresh air indoor duct structure according to claim 5, characterized in that, The fresh air indoor duct structure also includes: A connecting shaft (500) is provided between the decorative panel (400) and the housing body (110); A fixing buckle (600) is disposed between the decorative panel (400) and the housing body (110) and located at the edge away from the connecting pivot (500).
7. The fresh air indoor duct structure according to claim 6, characterized in that, The fresh air indoor duct structure also includes: The main control box is connected to the housing body (110) and is located on the side away from the cover body (210).
8. The fresh air indoor duct structure according to claim 7, characterized in that, The main control box includes: Box body; A controller mounting cavity is disposed within the housing and is used to install the fresh air unit controller.
9. The fresh air indoor duct structure according to claim 8, characterized in that, The fresh air indoor duct structure also includes: The duct has one end extending to the outside and the other end passing through the main control box and communicating with the air outlet.
10. A fresh air ventilator, characterized in that, include: The fresh air indoor duct structure as described in any one of claims 1 to 9.