Air outlet radar layout structure and central air conditioning unit

Abstract

The utility model discloses a kind of air port radar layout structure and central air conditioning unit, air port is embedded in ceiling structure;Including:The air port is provided with at least three mounting areas along its length direction interval, at least one detection device is mounted in each The detection device is all needed for limiting its in length direction and pitch direction angle of placement.Such increase human perception scanning area, reduce scanning blind area, improve the use experience of user, reduce after-sales complaint.

Description

Technical Field

[0001] This utility model relates to the field of measurement technology, and in particular to a wind vent radar layout structure and a central air conditioning unit. Background Technology

[0002] With the rapid development of technology, products incorporating advanced technology and intelligent functions are constantly entering people's lives. Various intelligent ecosystems are emerging one after another, with rapid updates and iterations, greatly facilitating people's lives. In the air conditioning industry, because residential scenarios have higher requirements for product experience and comfort compared to commercial scenarios, the development of intelligent functions in wall-mounted and floor-standing air conditioners is more advanced, and there are already many intelligent products on the market. In comparison, the development of central air conditioning has been relatively slow.

[0003] As the mainstream form of central air conditioning, ducted air conditioners are installed within the ceiling structure. Therefore, to achieve smart functions, they are primarily implemented through installation at the air vents. Some existing smart air vent products use radar installed on the vents to sense human presence. However, most smart air vents have excessively large scanning blind spots, resulting in no response from human senses and causing after-sales complaints. Utility Model Content

[0004] This utility model provides a layout structure for a wind vent radar and a central air conditioning unit to solve the problem of excessively large scanning blind spots in the existing technology.

[0005] The technical solution of this utility model is a wind vent radar layout structure, in which the wind vent is embedded in the ceiling structure; including: The air vent is provided with at least three installation areas spaced apart along its length, and each installation area is equipped with at least one detection device. The detection devices are used to limit the placement angle of the vent in the length and pitch directions.

[0006] Furthermore, a detection device is symmetrically arranged at both ends of the installation area along the length of the air vent, and a detection device is arranged in the installation area at the middle of the installation area along the length of the air vent.

[0007] Furthermore, the detection devices are symmetrically located at both ends of the air vent along its length. The placement angle of each detection device in the length direction can be independently adjusted, with an adjustment range of [0°, 35°]. The adjustment angles of the detection devices at both ends of the air vent are opposite in the length direction.

[0008] Furthermore, the detection device located at the middle of the length direction of the air vent is positioned at an angle of 0° in the length direction.

[0009] Furthermore, the tilt angle of all the aforementioned detection devices can be independently adjusted, with an adjustment range of [0°, 24°].

[0010] Furthermore, the center points of all the aforementioned detection devices are located on the same straight line, and this straight line coincides with or is parallel to the center line of the length direction of the air vent.

[0011] Furthermore, a guide vane is provided between two adjacent installation areas, and the detection areas of all the detection devices do not overlap with the physical location or airflow coverage of the guide vane in space, so they do not interfere with each other.

[0012] Furthermore, all of the aforementioned detection devices are located on the inner side of the air vent facing the ceiling structure, and all of the aforementioned detection devices are completely within the vertical projection range of the air vent.

[0013] Furthermore, all of the aforementioned detection devices protrude from the outside of the air vent structure facing away from the ceiling.

[0014] This utility model also proposes a central air conditioning unit, including a duct unit, wherein the duct unit includes the air outlet radar layout structure described above.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: This invention increases the human-sensing scanning area, reduces the scanning blind zone, improves the user experience, and reduces after-sales complaints by setting at least three installation areas at intervals along the length of the air vent, with at least one detection device installed in each installation area, and restricting the placement angle of the detection device in the length and pitch directions. Attached Figure Description

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects and not to describe a particular order.

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the rear of the wind tunnel radar layout structure proposed in this utility model; Figure 2 This is a front view of the wind tunnel radar layout structure proposed in this utility model. Figure 3 The placement angle of the detection device proposed in this utility model from a horizontal perspective; Figure 4 The placement angle of the detection device proposed in this utility model from the perspective of elevation; Figure 5 This is a schematic diagram of the scanning area of ​​the detection device located in the middle of the length direction of the air vent, as proposed in this utility model. Figure 6 This is a schematic diagram of the central main ray in the vertical direction of the detection device proposed in this utility model. Figure 7 This is a schematic diagram of the scanning blind zone of the detection device proposed in this utility model, which is located only at both ends of the length direction of the air outlet; Figure 8 This is a schematic diagram of the scanning blind zone of the wind tunnel radar layout structure proposed in this utility model.

[0019] Figure label: 10. Wind vent; 20. Detection device; 30. Air guide plate. Detailed Implementation

[0020] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present utility model, and does not imply that every embodiment of the present utility model must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0021] The principle and structure of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0022] As the mainstream form of central air conditioning, ducted air conditioners are installed within the ceiling structure. Therefore, to achieve smart functions, they are primarily implemented through installation at the air vents. Some existing smart air vent products use radar installed on the vents to sense human presence. However, most smart air vents have excessively large scanning blind spots, resulting in no response from human senses and causing after-sales complaints.

[0023] Therefore, in some embodiments, such as Figure 1 As shown, this utility model proposes a wind-vent radar layout structure to reduce scanning blind zones, wherein the wind vent 10 is embedded in the ceiling structure; including: The air vent 10 has at least three installation areas spaced apart along its length, and each installation area is equipped with at least one detection device 20. The detection devices 20 are used to limit the placement angle of the vent in the length direction and the pitch direction.

[0024] It should be noted that the air vent radar layout structure proposed in this embodiment is illustrated using a ducted air conditioner installed on a ceiling structure as an example. The length direction proposed in this embodiment corresponds to the horizontal direction, and the pitch direction is the projection of the vertical direction (corresponding to the direction from the top of the room to the ground) onto a specific plane.

[0025] In this embodiment, the detection device 20 is illustrated using a millimeter-wave radar as an example. The millimeter-wave radar has a horizontal scanning angle range of ±60° (equivalent to the length direction of the vent 10 or the Y-axis, as described in the full text). That is, with the forward normal direction of the detection device 20 (i.e., the central axis of the main beam of the detection device 20) as the 0° reference, 60° to the left and right constitute the horizontal field of view (HFOV). The elevation scanning angle is ±30° (equivalent to the gravity direction of the vent 10). That is, with the mounting plane (Z-axis) of the detection device 20 as the 0° reference, 30° upward and 30° downward constitute the vertical field of view (VFOV). Of course, the detection device 20 can also be selected as a lidar or an infrared smart eye according to actual needs, which is not limited here.

[0026] In this way, by setting at least three installation areas at intervals along the length of the air vent 10, with at least one detection device 20 installed in each installation area, and limiting the placement angle of the detection device 20 in the length and pitch directions, the present invention increases the human-sensing scanning area, reduces the scanning blind zone, improves the user experience, and reduces after-sales complaints.

[0027] Specifically, to reduce the scanning blind zone while also lowering costs, this embodiment proposes a specific wind-end radar layout structure: A detection device 20 is symmetrically arranged at both ends of the air vent 10 along its length direction, and a detection device 20 is arranged in the middle of the air vent 10 along its length direction.

[0028] Of course, in other embodiments (not shown in the figure), each installation area can be provided with multiple detection devices 20 side by side or in parallel, which is not limited here.

[0029] In some embodiments, such as Figure 3 As shown, the detection devices 20 are symmetrically located at both ends of the air vent 10 along the length direction. The placement angle of each detection device 20 along the length direction can be adjusted independently, with an adjustment range of [0°, 35°]. The adjustment angles of the detection devices 20 at both ends of the air vent 10 are opposite in the length direction.

[0030] It should be noted that the detection devices 20 located at both ends of the air vent 10 have opposite adjustment angles along their length, thus forming a symmetrical or complementary detection coverage pattern, expanding the detection range and reducing blind spots. Furthermore, the detection devices 20 symmetrically located at both ends of the air vent 10 have the same but opposite placement angles along their length; for example, if the placement angle of one detection device 20 is 35°, the placement angle of the other detection device 20 is -35°. The maximum distance between the symmetrically located detection devices 20 at both ends of the air vent 10 does not exceed the overall length of the air vent 10.

[0031] The scanning angle of the detection devices 20 located at both ends of the length direction of the air vent 10 in the horizontal direction is preferably ±60°. This way, by rotating the detection devices 20 in the horizontal direction by ±30°, it is possible to ensure that the detection devices 20 located at both ends of the length direction of the air vent 10 cover 180° in the horizontal direction. Furthermore, the edge detection sensitivity and installation deviation of the detection devices 20 must also be considered. Generally, the placement is 5° over-interference, that is, the adjustment range of the placement angle of each end of the detection device 20 in the length direction is [0°, 35°].

[0032] In order to minimize the scanning blind zone of the wind vent radar layout structure, the placement angle of the detection device 20 located in the middle of the length direction of the wind vent 10 is 0° in the length direction. It is only necessary to ensure that the swing angle of the detection device 20 in the pitch direction in the middle of the length direction of the wind vent 10 is independently adjusted, because if the placement angle of the detection device 20 located in the middle of the length direction of the wind vent 10 is >0°, it may affect the increase of the scanning blind zone of the wind vent radar layout structure.

[0033] Among them, such as Figure 4 As shown, the placement angle of all the detection devices 20 in the pitch direction can be adjusted independently, with an adjustment range of [0°, 24°].

[0034] It should be noted that all detection devices 20 are positioned at the same angle in the pitch direction to reduce the scanning blind zone.

[0035] like Figure 6 As shown, to ensure the normal operation of the detection device 20 (an elevation angle exceeding 30° will cause the detection device 20 to malfunction), and considering the interference of the central main ray's ground-reflected signal on signal reception, the range of the elevation angle A of the detection devices 20 symmetrically located at both ends of the wind outlet 10 is determined as follows: ; Wherein, L1 is the effective distance of the central main ray of the detection device 20; H4 is the projection of the effective distance of the central main ray of the detection device 20 in the height direction; and H5 is the distance between the center of the detection device 20 and the ground.

[0036] Specifically, if we take L1=7m and H5=2.85m as an example in this embodiment, we can calculate that A≤24.02°. Of course, since a margin of 0.02°-0.1° needs to be reserved in the actual installation process to avoid exceeding the limit due to edge detection sensitivity and installation deviation, in this embodiment, the placement angle of the detection devices 20 symmetrically located at both ends of the length direction of the air outlet 10 in the pitch direction is selected as [0°, 24°].

[0037] Among them, such as Figures 5-6 As shown, when the wind tunnel radar layout structure proposed in this utility model is installed on the ceiling structure of a room, the formula for calculating the reduction in scanning blind zone is as follows: ; ; Wherein, B1 is the room width along the length of the air vent 10; H1 is the projected height of the scanning blind zone; H3 is the total projected height of the blind zone; L2 is the room length; x is the forced blind zone distance, which is a fixed area that the detection device 20 cannot cover due to physical limitations (such as antenna installation height and beam elevation angle); and Figure 5 B2 in the figure represents the projection width of the scanning area of ​​the detection device 20 located in the middle of the length direction of the vent 10.

[0038] For ease of understanding, this embodiment uses a residential living room with a total length L2=7m and a width B1=5m as an example. Correspondingly, H1 is preferably 0.36m, x is preferably 1.65m, and the placement angle A of the detection device 20 in the pitch direction is preferably 23°. Thus, according to the above formula, a≈14.25% can be obtained. Of course, the values ​​of H1 and x will change accordingly depending on the room size, which is not limited here.

[0039] Therefore, compared to the solution of only installing one detection device 20 at each end of the length direction of the air vent 10 (such as...), Figure 7 As shown), the scanning blind zone of the wind tunnel radar layout structure proposed in this embodiment can be reduced by approximately 14.25% (e.g., Figure 8 As shown in the figure, this increases the human-sensing scanning area, improves the user experience, and reduces after-sales complaints.

[0040] In some embodiments, the center points of all the detection devices 20 are located on the same straight line, and the straight line coincides with or is parallel to the center line of the length direction of the air outlet 10 (the included angle is 0° or 180°).

[0041] This parallel or overlapping layout avoids the detection device 20 being directly exposed to the high-speed airflow of the vent 10, reducing the interference of the airflow of the vent 10 on the signal of the detection device 20; and the detection devices 20 arranged in the same straight line can ensure that the scanning area is covered without blind spots, which conforms to the "central arrangement" principle; and the layout aligned with the center line of the length direction of the vent 10 facilitates pipeline laying and subsequent debugging.

[0042] In some embodiments, such as Figures 1-2 As shown, a guide plate 30 is provided between two adjacent installation areas, and the detection areas of all the detection devices 20 do not overlap with the physical position or airflow coverage of the guide plate 30 in space, and do not interfere with each other.

[0043] In this way, the air guide plate 30 will not block the beam path of the detection device 20 when it is closed or opened, avoiding the possibility that the air guide plate 30 made of metal or plastic may reflect / absorb the signal of the detection device 20; and the airflow of the air guide plate 30 will not affect the working environment of the detection device 20, such as avoiding the situation where cold air blows directly and causes condensation inside the detection device 20.

[0044] In some embodiments, such as Figure 1 As shown, in order to improve the aesthetics of the vent radar layout structure, all the detection devices 20 are located on the inner side of the vent 10 facing the ceiling structure, and all the detection devices 20 are completely located within the vertical projection range of the vent 10.

[0045] Among them, the detection devices 20 are all located entirely within the vertical projection range of the air vent 10. This means that the highest and lowest points of the detection devices 20 must not extend beyond the upper and lower edges of the air vent 10 in the vertical direction. Figure 2 On the plane shown, only the exterior of the air vent 10 is visible, and the detection device 20 is not visible.

[0046] Of course, in other embodiments (not shown in the figures), all of the detection devices 20 protrude from the outside of the air vent 10 facing away from the ceiling structure.

[0047] This configuration expands the scanning range of the wind tunnel radar layout, reduces the scanning blind zone, and also reduces the scanning of the airflow interference detection device 20.

[0048] In some embodiments, the present invention also proposes a central air conditioning unit, including a ducted unit, wherein the ducted unit includes the air outlet radar layout structure described above.

[0049] In this way, the present invention provides three installation areas spaced apart along the length of the air vent 10, with a detection device 20 installed in each area. The detection devices 20 are symmetrically located at both ends of the length of the air vent 10. The adjustment range of the placement angle of each detection device 20 in the length direction is [0°, 35°], and the adjustment angles of the detection devices 20 at both ends of the air vent 10 are opposite in the length direction. The placement angle of the detection device 20 located in the middle of the length of the air vent 10 is 0°. The adjustment range of the placement angle of all detection devices 20 in the pitch direction is [0°, 24°]. This arrangement can increase the human-sensing scanning area, reduce the scanning blind zone, improve the user experience, and reduce after-sales complaints.

[0050] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A wind-vent radar layout structure, wherein the wind vent (10) is embedded in the ceiling structure; characterized in that, include: The air vent (10) is provided with at least three installation areas at intervals along its length direction, and each installation area is equipped with at least one detection device (20). The detection devices (20) are used to limit their placement angle in the length direction and the pitch direction.

2. The wind tunnel radar layout structure according to claim 1, characterized in that, A detection device (20) is symmetrically arranged at both ends of the air vent (10) along its length direction, and a detection device (20) is arranged in the middle of the air vent (10) along its length direction.

3. The wind tunnel radar layout structure according to claim 2, characterized in that, The detection devices (20) are symmetrically located at both ends of the air vent (10) along the length direction. The placement angle of each detection device (20) along the length direction can be adjusted independently, with an adjustment range of [0°, 35°]. The adjustment angles of the detection devices (20) at both ends of the air vent (10) are opposite in the length direction.

4. The wind tunnel radar layout structure according to claim 2, characterized in that, The detection device (20) located in the middle of the length direction of the air vent (10) is placed at an angle of 0° in the length direction.

5. The wind tunnel radar layout structure according to claim 2, characterized in that, The placement angle of all the aforementioned detection devices (20) in the pitch direction can be adjusted independently, with an adjustment range of [0°, 24°].

6. The wind tunnel radar layout structure according to any one of claims 1 to 5, characterized in that, The center points of all the detection devices (20) are located on the same straight line, and the straight line coincides with or is parallel to the center line of the air outlet (10) along its length.

7. The wind tunnel radar layout structure according to any one of claims 1 to 5, characterized in that, A guide plate (30) is provided between two adjacent installation areas, and the detection areas of all the detection devices (20) do not overlap with the physical location or airflow coverage of the guide plate (30) in space, and do not interfere with each other.

8. The wind tunnel radar layout structure according to any one of claims 1 to 5, characterized in that, All of the aforementioned detection devices (20) are located on the inner side of the air vent (10) facing the ceiling structure, and all of the aforementioned detection devices (20) are completely located within the vertical projection range of the air vent (10).

9. The wind tunnel radar layout structure according to any one of claims 1 to 5, characterized in that, All of the aforementioned detection devices (20) are protruding and positioned on the outside of the air vent (10) facing away from the ceiling structure.

10. A central air conditioning unit, comprising a ducted unit, characterized in that, The duct unit includes the air outlet radar layout structure as described in any one of claims 1 to 9.

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