Return air assembly and duct machine having the same

Abstract

The present invention discloses a return air assembly and a duct machine having the same. The return air assembly includes: a return air frame, the return air frame defines a return air channel; an intelligent detection device, the intelligent detection device is arranged at the return air outlet of the return air channel, and the intelligent detection device is configured to detect whether there is a user in the space where the duct machine is located and / or detect the indoor temperature; a switch door, the switch door is arranged at the return air outlet to open or close the return air outlet. According to the return air assembly of the present invention, the accuracy and reliability of the detection of the intelligent detection device can be improved. The duct machine can be applied to ceilings of different decoration styles. The appearance of the duct machine can be improved to a certain extent, and the visual experience of the user can be enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioning, and in particular to a return air component and a duct machine having the same. Background Art

[0002] In the related art, the duct air conditioner is usually installed in the ceiling in home applications, and the intelligent detection device of the duct air conditioner is installed at the air outlet. The air outlet is mostly installed in the light trough of the ceiling. Therefore, objects such as light strips in the light trough will block the intelligent detection device to a certain extent and affect the accuracy of the detection. At the same time, the return air outlet of the duct air conditioner in the related art is provided with a grille, which affects the appearance of the duct air conditioner to a certain extent. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a return air assembly for a ducted air conditioner, which can improve the accuracy and reliability of detection by an intelligent detection device. The ducted air conditioner can be applied to ceilings of different decoration styles. The appearance of the ducted air conditioner can be improved to a certain extent, and the visual experience of the user can be enhanced.

[0004] The present invention also provides a duct air conditioner, comprising the above-mentioned return air assembly.

[0005] According to an embodiment of the present invention, a return air assembly for a duct air conditioner includes: a return air frame, which defines a return air channel; an intelligent detection device, which is arranged at the return air outlet of the return air channel, and is configured to detect whether there is a user in the space where the duct air conditioner is located and / or detect the indoor temperature; and a switch door, which is arranged at the return air outlet to open or close the return air outlet.

[0006] According to the return air assembly for the duct air conditioner of the embodiment of the present invention, by arranging the intelligent detection device and the switch door at the return air outlet, the accuracy and reliability of the detection of the intelligent detection device can be improved. The duct air conditioner can be applied to ceilings of different decoration styles, the reliability of the duct air conditioner is ensured, and the application scope of the duct air conditioner is expanded. At the same time, the appearance of the duct air conditioner can be improved to a certain extent, and the visual experience of the user can be enhanced.

[0007] According to some embodiments of the present invention, the switch door is provided with an escape opening, and the intelligent detection device is arranged at the escape opening.

[0008] In some embodiments of the present invention, one end of the switch door is rotatably provided at the return air outlet, and when the return air outlet is opened, the switch door rotates toward the air outlet direction of the air outlet.

[0009] In some embodiments of the present invention, the rotation angle of the opening and closing door is γ, and γ satisfies: 20°≤γ≤90°.

[0010] Optionally, γ=30°.

[0011] In some embodiments of the present invention, the avoidance opening is arranged close to the pivot end of the opening and closing door.

[0012] In some embodiments of the present invention, the intelligent detection device is rotatably disposed at the avoidance opening.

[0013] In some embodiments of the present invention, the rotation direction of the intelligent detection device is the same as the rotation direction of the switch door when the return air outlet is opened.

[0014] In some embodiments of the present invention, the rotation angle of the intelligent detection device is α, and α satisfies: 0°≤α≤60°.

[0015] In some embodiments of the present invention, the return air assembly further includes a shielding assembly, and the shielding assembly is disposed at the avoidance opening. When the switch door closes the return air opening, at least a portion of the shielding assembly is located directly above the intelligent detection device.

[0016] Specifically, the shielding assembly includes a first baffle, a second baffle and a third baffle. The first baffle and the second baffle are located on the left and right sides of the intelligent detection device. The left and right ends of the third baffle are respectively connected to the first baffle and the second baffle. The third baffle is located above the intelligent detection device.

[0017] Optionally, the shielding assembly and the switch door are an integrated piece.

[0018] According to some embodiments of the present invention, there are multiple switch doors, and the multiple switch doors are arranged in sequence along the width direction of the return air outlet.

[0019] In some embodiments of the present invention, the return air assembly further includes a plurality of first drive devices, and the plurality of first drive devices are arranged in one-to-one correspondence with the plurality of switch doors, and each first drive device is connected to the corresponding switch door to drive the switch door to rotate.

[0020] According to some embodiments of the present invention, the intelligent detection device is fixed at the return air outlet, and a fixing surface of the intelligent detection device has an angle with a plane where the return air outlet is located.

[0021] According to some embodiments of the present invention, the switch door and the intelligent detection device are respectively arranged on the return air frame.

[0022] The duct air conditioner according to the embodiment of the present invention includes the return air assembly according to the above embodiment of the present invention.

[0023] According to the duct air conditioner of the embodiment of the present invention, by setting the return air assembly according to the above embodiment of the present invention, the accuracy and reliability of the detection of the intelligent detection device can be improved. The duct air conditioner can be applied to ceilings of different decoration styles, the reliability of the duct air conditioner is ensured, and the application scope of the duct air conditioner is expanded. At the same time, the appearance of the duct air conditioner can be improved to a certain extent, and the visual experience of the user can be enhanced.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 is a schematic diagram of a duct machine according to some embodiments of the present invention;

[0027] Figure 2 is a schematic diagram of a return air assembly according to some embodiments of the present invention, wherein a switch door closes the return air outlet and the intelligent detection device does not rotate;

[0028] Figure 3 is a schematic diagram of a return air assembly according to some embodiments of the present invention, wherein a switch door opens a return air outlet and an intelligent detection device rotates;

[0029] Figure 4 is an exploded view of a return air assembly according to some embodiments of the present invention;

[0030] Figure 5 is a schematic diagram of a return air assembly according to some embodiments of the present invention;

[0031] Figure 6 yes Figure 5 Sectional view in the AA direction;

[0032] Figure 7 yes Figure 5 A magnified view of part A;

[0033] Figure 8 is a schematic diagram of a return air assembly according to some embodiments of the present invention;

[0034] Fig. 9 is a schematic diagram of a return air assembly according to some embodiments of the present invention;

[0035] Fig.10 is a schematic diagram of a return air assembly according to some embodiments of the present invention.

[0036] Reference numerals:

[0037] Duct machine 1000;

[0038] Return air assembly 100;

[0039] Return air frame 1; return air channel a; return air outlet b; matching portion 11; air outlet c;

[0040] Intelligent detection device 2; support frame 21; observation hole 21a; connecting column 211;

[0041] User detection unit 22; Temperature detection unit 23;

[0042] Opening and closing door 3; avoidance opening 3a;

[0043] Shielding assembly 4; first baffle 41; second baffle 42; third baffle 43;

[0044] Second driving device 5; driving motor 51; transmission assembly 52;

[0045] A first driving device 7; a filter screen 8;

[0046] Air detection device 9; first detection unit 91; second detection unit 92; third detection unit 93;

[0047] The electronic control device 10. DETAILED DESCRIPTION

[0048] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0049] The following describes a return air assembly 100 for an air duct unit 1000 according to an embodiment of the present invention with reference to the accompanying drawings.

[0050] like Figure 1-Figure 3 As shown, the return air assembly 100 for the duct air conditioner 1000 according to the embodiment of the present invention includes: a return air frame 1, an intelligent detection device 2 and a switch door 3.

[0051] Specifically, the return air frame 1 defines a return air channel a. When the return air assembly 100 is used for the duct machine 1000, the return air frame 1 can be installed on the ceiling. The intelligent detection device 2 is provided at the return air port b of the return air channel a. The intelligent detection device 2 is configured to detect whether there is a user in the space where the duct machine 1000 is located and / or detect the indoor temperature.

[0052] It can be seen that the intelligent detection device 2 can be configured to detect whether there are users in the space where the duct machine 1000 is located, and then the detection result can be sent to the electronic control device 10 of the duct machine 1000. The electronic control device 10 of the duct machine 1000 can control the operating state of the duct machine 1000 according to the detection result. For example, when the intelligent detection device 2 detects that there are no users in the space where the duct machine 1000 is located, the electronic control device 10 can turn off the duct machine 1000, which is beneficial for users to save electricity, reduce usage costs, and reduce energy consumption of the duct machine 1000. For another example, when the intelligent detection device 2 detects that there are users in the space where the duct machine 1000 is located, the electronic control device 10 can turn on the duct machine 1000 to cool or heat the indoor space, improve the user's comfort, and make the use of the duct machine 1000 more intelligent and flexible.

[0053] The intelligent detection device 2 can also be configured to detect only the indoor temperature of the space where the duct air conditioner 1000 is located, and then the detection result can be fed back to the electronic control device 10. The electronic control device 10 automatically adjusts the heat exchange temperature of the duct air conditioner 1000 according to the detection result and the target temperature set by the user so that the indoor temperature reaches the target temperature set by the user.

[0054] Of course, the intelligent detection device 2 can also be constructed to be used to simultaneously detect whether there is a user in the space of the duct machine 1000 and detect the indoor temperature, thereby expanding the function of the intelligent detection device 2 and improving the intelligence level of the duct machine 1000.

[0055] Since the intelligent detection device 2 is arranged at the return air outlet b, compared with the prior art, in the return air assembly 100 for the duct machine 1000 of the embodiment of the present invention, it is possible to effectively avoid the intelligent detection device 2 being blocked by objects such as light strips and thus affecting the detection range and detection results of the intelligent detection device 2, thereby improving the accuracy and reliability of the detection of the intelligent detection device 2. Regardless of the indoor ceiling, the normal use of the intelligent detection device 2 is not affected, so that the duct machine 1000 can be applied to ceilings of different decoration styles, ensuring the reliability of the operation of the duct machine 1000 and expanding the scope of application of the duct machine 1000. At the same time, it can be understood that for the duct machine 1000, the air flow temperature at the return air outlet b is the relatively real temperature of the indoor heat exchange space, so when the intelligent detection device 2 is arranged at the return air outlet b to detect the indoor temperature, the detection result is more accurate, thereby improving the working efficiency of the duct machine 1000 and helping to improve the user experience.

[0056] The switch door 3 is arranged at the return air outlet b to open or close the return air outlet b. It can be seen that when the duct machine 1000 is running, the switch door 3 can open the return air outlet b to return air. When the duct machine 1000 is closed, the switch door 3 can close the return air outlet b. Therefore, compared with the prior art, the return air assembly 100 for the duct machine 1000 in the embodiment of the present invention cancels the grille at the return air outlet b in the prior art, and adopts the switch door 3 arranged at the return air outlet b. Therefore, when the duct machine 1000 stops running, when the user looks up at the return air outlet b, because the switch door 3 closes the return air outlet b, the user can only see the switch door 3 and cannot see the inside of the duct machine 1000, thereby improving the appearance of the return air assembly 100 to a certain extent and enhancing the user's visual experience. On the other hand, when the switch door 3 closes the return air outlet b, it can effectively prevent small particles such as dust in the indoor space from entering the duct machine 1000 through the return air outlet b, thereby improving the reliability of the duct machine 1000 and reducing the frequency of cleaning the duct machine 1000, thereby improving user comfort.

[0057] According to the return air assembly 100 for the duct air conditioner 1000 of the embodiment of the present invention, the intelligent detection device 2 and the switch door 3 are arranged at the return air port b, thereby improving the accuracy and reliability of the detection of the intelligent detection device 2. The duct air conditioner 1000 can be applied to ceilings of different decoration styles, ensuring the reliability of the duct air conditioner 1000 and expanding the application scope of the duct air conditioner 1000. At the same time, the appearance of the duct air conditioner 1000 can be improved to a certain extent, enhancing the visual experience of the user.

[0058] like Figure 3 and Figure 4 As shown, according to some embodiments of the present invention, the switch door 3 is provided with a avoidance opening 3a, and the intelligent detection device 2 is arranged at the avoidance opening 3a. This is conducive to improving the space utilization rate of the duct unit 1000, reducing the occupied space of the return air assembly 100, and at the same time ensuring the reliability of the operation of the intelligent detection device 2 and the switch door 3 to a certain extent.

[0059] As Figure 3 and Fig.10As shown, in some embodiments of the present invention, one end of the switch door 3 is rotatably arranged at the return air port b, and when the return air port b is opened, the switch door 3 rotates toward the air outlet direction of the air outlet c. It can be seen that after the switch door 3 opens the return air port b, the air supply process and the air return process of the duct machine 1000 are respectively performed on the opposite sides of the switch door 3. For example, when the air outlet direction of the air outlet c of the duct machine 1000 is located at the front side of the switch door 3, that is, the duct machine 1000 supplies air forward, the air return process of the duct machine 1000 is performed at the rear side of the switch door 3. It can be understood that the air outlet direction of the air outlet c is usually the area where the user is located (for example, the living room). Since the switch door 3 rotates toward the air outlet direction of the air outlet c (rotates toward the direction of the living room), when the user (located in the living room) looks up at the return air port b, the user's line of sight is blocked by the rotated switch door 3, so that the user can still only see the switch door 3, but cannot see the inside of the duct machine 1000, which can further enhance the user's visual experience.

[0060] like Figure 3 As shown, in some embodiments of the present invention, the rotation angle of the switch door 3 is γ. When γ satisfies: 20°≤γ≤90°, it can prevent the user from viewing the interior of the duct machine 1000 through the switch door 3 to a certain extent, which can improve the user's visual experience. Optionally, 22°≤γ≤86°. Optionally, 22.5°≤γ≤78.5°. Optionally, 27.3°≤γ≤60.2°. Optionally, γ=30°

[0061] like Figure 3 As shown, in some embodiments of the present invention, the avoidance opening 3a is arranged near the pivot end of the switch door 3. It is known that the rotation direction of the switch door 3 when opening the return air outlet b is toward the air outlet direction of the air outlet c, so it can be known that the pivot end of the switch door 3 is arranged near the air outlet c, and the avoidance opening 3a is located at the part of the switch door 3 near the air outlet c. In other words, the intelligent detection device 2 is arranged on the side of the return air outlet b near the air outlet c. Thereby, it can be avoided to a certain extent that the intelligent detection device 2 is blocked by the rotation of the switch door 3, which is conducive to ensuring the detection result of the intelligent detection device 2, and is conducive to ensuring the accuracy and reliability of the detection of the intelligent detection device 2, thereby improving the reliability of the return air assembly 100. Optionally, the avoidance opening 3a is formed as a notch formed by a part of the pivot end of the switch door 3 being recessed inwardly. Thereby, the manufacture of the switch door 3 is facilitated.

[0062] like Figure 3 , Figure 6 , Fig. 9 and Fig.10 As shown, in some embodiments of the present invention, the intelligent detection device 2 is rotatably disposed at the avoidance opening 3a, thereby expanding the detection range of the intelligent detection device 2, improving the accuracy and reliability of the detection of the intelligent detection device 2, and further improving the reliability of the return air assembly 100.

[0063] like Figure 3 and Fig.10 As shown, in some embodiments of the present invention, the rotation direction of the intelligent detection device 2 is the same as the rotation direction when the switch door 3 opens the return air port b. It can be seen that the rotation direction of the intelligent detection device 2 is also toward the air outlet direction of the air outlet c, so that the intelligent detection device 2 can detect whether there is a user in the area corresponding to the air outlet c and / or detect the temperature in the room, thereby improving the working efficiency of the air duct machine 1000 and improving the user experience.

[0064] like Figure 3 As shown, in some embodiments of the present invention, the rotation angle of the intelligent detection device 2 is α. When α satisfies: 0°≤α≤60°, the accuracy and reliability of the detection of the intelligent detection device 2 can be guaranteed, thereby ensuring the reliability of the duct machine 1000. Optionally, 5°≤α≤55°. Optionally, 10.5°≤α≤30.2°. Optionally, α=60°.

[0065] In some embodiments of the present invention, the return air assembly 100 further includes a shielding assembly 4, which is disposed at the avoidance opening 3a. When the switch door 3 closes the return air opening b, at least part of the shielding assembly 4 is located directly above the intelligent detection device 2. This can prevent the user from looking up and seeing the inside of the duct machine 1000 through the gap between the avoidance opening 3a and the intelligent detection device 2 to a certain extent, thereby improving the appearance of the return air assembly 100 and enhancing the user's visual experience.

[0066] Specifically, the shielding assembly 4 includes a first baffle 41, a second baffle 42 and a third baffle 43, wherein the first baffle 41 and the second baffle 42 are located on the left and right sides of the intelligent detection device 2, and the left and right ends of the third baffle 43 are respectively connected to the first baffle 41 and the second baffle 42, and the third baffle 43 is located above the intelligent detection device 2. It can be seen that the shielding assembly 4 is provided with the first baffle 41, the second baffle 42 and the third baffle 43 for shielding on the left, the right and the top of the intelligent detection device 2, respectively, so as to effectively prevent the intelligent detection device 2 from rotating and the user from seeing the inside of the air duct machine 1000 through the gap between the avoidance opening 3a and the intelligent detection device 2, thereby improving the appearance of the return air assembly 100 and enhancing the visual experience of the user.

[0067] Optionally, the shielding assembly 4 and the switch door 3 are integrated, thereby facilitating the improvement of the production efficiency of the return air assembly 100 and the improvement of the structural strength and reliability of the switch door 3.

[0068] like Figure 4As shown, in some other embodiments of the present invention, a shielding assembly 4 is provided on the switch door 3, and the shielding assembly 4 includes a first baffle 41, a second baffle 42 and a third baffle 43. The first baffle 41 and the second baffle 42 are respectively located on the left and right sides of the intelligent detection device 2, and the first baffle 41 and the second baffle 42 are formed as flat panels and extend vertically upward when the switch door 3 closes the return air outlet b. The left and right ends of the third baffle 43 are respectively connected to the first baffle 41 and the second baffle 42, and the third baffle 43 is formed as a curved panel. When the switch door 3 closes the air outlet c, the third baffle 43 is formed from bottom to top into a curved panel that tilts forward. This can prevent the user from seeing the inside of the duct machine 1000 through the gap between the avoidance port 3a and the intelligent detection device 2 when the switch door 3 and / or the intelligent detection device 2 rotates to a certain extent, improve the appearance of the return air assembly 100 when in use, and enhance the user's visual experience.

[0069] like Figure 4 and Figure 5 As shown, according to some embodiments of the present invention, there are multiple switch doors 3, and the multiple switch doors 3 are arranged in sequence along the width direction of the return air port b. Therefore, when the size of the return air port b is fixed, the structural arrangement of the multiple switch doors 3 is conducive to reducing the weight of a single switch door 3, and is conducive to reducing the pressure on the same position of the return air component 100, improving the reliability of the structure of the return air component 100, and is conducive to extending the service life of the return air component 100.

[0070] like Figure 4 As shown, in some embodiments of the present invention, the return air assembly 100 further includes a plurality of first drive devices 7, and the plurality of first drive devices 7 are arranged in one-to-one correspondence with the plurality of switch doors 3, and each first drive device 7 is connected to the corresponding switch door 3 to drive the switch door 3 to rotate. It can be seen that the plurality of switch doors 3 are respectively driven to rotate by their respective corresponding first drive devices 7 to open or close the return air port b, and the switch door 3 opens or closes the return air port b in a simple and reliable manner. The plurality of switch doors 3 are independent of each other. When one of the switch doors 3 fails and cannot open the return air port b, the return air port b can be opened through other switch doors 3, and thus the heat exchange function of the duct air conditioner 1000 can still be realized, thereby improving the reliability of the duct air conditioner 1000.

[0071] like Figure 2-Figure 4 As shown, according to some embodiments of the present invention, the switch door 3 and the intelligent detection device 2 are respectively arranged on the return air frame 1. This facilitates the installation and maintenance of the return air assembly 100 and the replacement of components.

[0072] like Figure 5 , Figure 7 and Fig. 9As shown, according to some embodiments of the present invention, the return air assembly 100 further includes a second driving device 5, which is disposed on the return air frame 1 and connected to the intelligent detection device 2 to drive the intelligent detection device 2 to rotate. It can be seen that the intelligent detection device 2 can be disposed on the return air frame 1 through the second driving device 5, and it can also be seen that the intelligent detection device 2 can be driven to rotate through the second driving device 5, thereby facilitating the intelligent detection device 2 to detect whether there is a user in the space where the air duct machine 1000 is located and / or detect the indoor temperature, thereby expanding the detection range of the intelligent detection device 2, improving the accuracy and reliability of the detection of the intelligent detection device 2, and thereby improving the reliability of the air duct machine 1000.

[0073] like Figure 7 As shown, in some embodiments of the present invention, the second driving device 5 includes a driving motor 51 and a transmission assembly 52, and the two ends of the transmission assembly 52 are respectively connected to the driving motor 51 and the intelligent detection device 2. It can be seen that the process of the second driving device 5 driving the intelligent detection device 2 to rotate is: the driving motor 51 drives and runs, and then the driving motor 51 drives the transmission assembly 52 to move, and the transmission assembly 52 drives the intelligent detection device 2 to move, thereby realizing the rotation process of the intelligent detection device 2.

[0074] In some embodiments of the present invention, the transmission assembly 52 is formed as a connecting rod mechanism. It can be seen that the transmission assembly 52 has a simple and reliable structure, which helps to reduce the space occupied by the second drive device 5 while ensuring that the intelligent detection device 2 can rotate within a certain range.

[0075] like Figure 7 As shown, according to some embodiments of the present invention, a connecting column 211 is provided on the intelligent detection device 2, and a matching portion 11 is provided on the return air frame 1. The connecting column 211 is matched and connected with the matching portion 11 and can rotate relative to the matching portion 11. It can be seen that the intelligent detection device 2 can be arranged on the return air frame 1 through the matching of the connecting column 211 and the matching portion 11, and can rotate relative to the return air frame 1. The way in which the intelligent detection device 2 is arranged on the return air frame 1 is simple, reliable, and easy to assemble and disassemble.

[0076] like Figure 4 and Figure 7As shown, according to some embodiments of the present invention, the intelligent detection device 2 includes a support frame 21, a user detection unit 22 and a temperature detection unit 23. The support frame 21 is arranged at the return air outlet b. Two observation holes 21a are arranged on the support frame 21. The user detection unit 22 and the temperature detection unit 23 are respectively arranged in the two observation holes 21a on the support frame 21 and are independent of each other. The user detection unit 22 is configured to detect whether there is a user in the space where the duct machine 1000 is located, and the temperature detection unit 23 is configured to detect the indoor temperature. It can be seen that the intelligent detection device 2 can not only detect whether there is a user in the space where the duct machine 1000 is located, but also detect the indoor temperature. This makes the functions of the intelligent detection device 2 diversified. At the same time, it can be seen that the intelligent detection device 2 can be installed at the return air outlet b through the support frame 21. The installation method is simple, which is conducive to improving the assembly efficiency of the return air component 100. The intelligent detection device 2 has a simple structure and is easy to manufacture.

[0077] Specifically, Figure 7 As shown, the support frame 21 is connected to the return air frame 1 and can rotate relative to the return air frame 1. It can be seen that the connecting column 211 is arranged on the support frame 21, and the support frame 21 is supported and connected to the return air frame 1 through the connecting column 211. The second driving device 5 drives the support frame 21 to rotate, thereby making the user detection part 22 and the temperature detection part 23 rotate synchronously with the support frame 21, thereby realizing the function of the intelligent detection device 2 being rotatable.

[0078] According to some embodiments of the present invention, a wire groove is provided on the return air frame 1, and the wires for connecting the intelligent detection device 2 and the electric control device 10 of the duct machine 1000 are arranged in the wire groove. Figure 5 and Figure 8 As shown, the intelligent detection device 2 and the electric control device 10 are arranged at intervals, and the wires connecting the electric control device 10 and the intelligent detection device 2 can be arranged in the wire groove. This is conducive to ensuring the reliability of the connection between the electric control device 10 and the intelligent detection device 2, facilitating the operator to connect the electric control device 10 and the intelligent detection device 2, preventing the wires from interfering with other components, and thus helping to improve the reliability of the duct machine 1000.

[0079] Among them, after the electric control device 10 is connected to the intelligent detection device 2, it can be used to control the operating state of the duct machine 1000 according to the detection result of the intelligent detection device 2. It can be seen that the intelligent detection device 2 can feed back the detection result to the electric control device 10, and the electric control device 10 controls the operating state of the duct machine 1000 according to the specific detection result of the intelligent detection device 2.

[0080] For example, when the intelligent detection device 2 detects that there is no user in the space where the duct machine 1000 is located and feeds back the detection result to the electronic control device 10, the electronic control device 10 can shut down the duct machine 1000 or control the drive system and compressor system in the duct machine 1000 to stop running, and only turn on the intelligent detection device 2 to detect whether there is a user at all times. This is beneficial for users to save electricity, reduce usage costs, and reduce the energy consumption of the duct machine 1000. When the intelligent detection device 2 detects that there is a user in the space where the duct machine 1000 is located and feeds back the detection result to the electronic control device 10, the electronic control device 10 can control the drive system and compressor system in the duct machine 1000 to start running, thereby effectively cooling or heating the indoor space, improving the user's comfort, and making the use of the duct machine 1000 more intelligent and flexible.

[0081] For another example, when the intelligent detection device 2 detects that the indoor temperature of the space where the duct unit 1000 is located is lower than the target temperature set by the user and feeds back the detection result to the electronic control device 10, the electronic control device 10 can improve the heat exchange efficiency of the duct unit 1000, thereby reaching the target temperature set by the user as soon as possible, thereby improving the user's experience. When the intelligent detection device 2 detects that the indoor temperature of the space where the duct unit 1000 is located is higher than the target temperature set by the user and feeds back the detection result to the electronic control device 10, the electronic control device 10 can control the duct unit 1000 to cool or shut down the duct unit 1000 according to the detection result.

[0082] In some embodiments of the present invention, at least a portion of the outer edge of the return air frame 1 is folded upward to define a wire groove. It can be seen that the wire groove has a simple structure and is easy to manufacture. At the same time, it is beneficial to improve the structural strength and reliability of the return air frame 1.

[0083] like Figure 6 , Fig. 9 and Fig.10 As shown, according to some embodiments of the present invention, the return air assembly 100 further includes a filter 8, which is arranged in the return air frame 1 and above the switch door 3. Thus, small particles such as dust flowing to the return air port b with the air can be effectively filtered, and small particles such as dust can be prevented from entering the duct machine 1000 to a certain extent, thereby improving the reliability of the duct machine 1000 and reducing the frequency of cleaning the duct machine 1000.

[0084] like Figure 5 and Figure 8As shown, according to some embodiments of the present invention, the return air assembly 100 further includes an air detection device 9, which is arranged in the return air frame 1 and above the switch door 3. The air detection device 9 includes at least one of a first detection unit 91, a second detection unit 92 and a third detection unit 93. The first detection unit 91 is configured to detect the humidity of the indoor air, the second detection unit 92 is configured to detect the pollution of the indoor air, and the third detection unit 93 is configured to detect the carbon dioxide content of the indoor air. Thus, the duct air conditioner 1000 can remind the user to open the window or turn on the air purifier according to the air quality detected by the air detection device 9. The functions of the duct air conditioner 1000 are diversified, and the user experience is improved.

[0085] According to some embodiments of the present invention, the intelligent detection device 2 is fixed at the return air outlet b, and the fixed surface of the intelligent detection device 2 has an angle with the plane where the return air outlet b is located. It can be seen that the intelligent detection device 2 can be fixed at the return air outlet b and fixed relative to the return air outlet b without rotating, and it can be seen that the intelligent detection device 2 is tilted relative to the return air outlet b. This is conducive to simplifying the structure and installation process of the intelligent detection device 2, so that the intelligent detection device 2 can be more reliably arranged at the return air outlet b, so that the structure of the return air component 100 is simple, and at the same time it is conducive to improving the reliability of the structure of the return air component 100. In actual production, the fixed surface of the intelligent detection device 2 can be tilted relative to the plane where the return air outlet b is located toward the air outlet c of the duct machine 1000, so as to facilitate the intelligent detection device 2 to detect whether there is a user in the area corresponding to the air outlet c and / or detect the temperature in the room, thereby improving the working efficiency of the duct machine 1000, which is conducive to improving the user experience. In addition, the tilted setting of the intelligent detection device 2 is also beneficial to expand the detection range of the intelligent detection device 2 to a certain extent, improve the accuracy and reliability of the detection of the intelligent detection device 2, and further improve the reliability of the return air component 100.

[0086] According to some embodiments of the present invention, the intelligent detection device 2 is fixed at the return air outlet b, and the fixing surface of the intelligent detection device 2 is located on the plane where the return air outlet b is located. It can be seen that the intelligent detection device 2 can be fixed at the return air outlet b, and the intelligent detection device 2 is arranged parallel to the return air outlet b, and there is no angle between the fixing surface of the intelligent detection device 2 and the plane where the return air outlet b is located. This facilitates the installation and fixation of the intelligent detection device 2. It is conducive to reliably fixing the intelligent detection device 2 at the return air outlet b. At the same time, it is conducive to simplifying the structure of the return air component 100, reducing the production cost of the return air component 100, and improving the production efficiency of the return air component 100.

[0087] The duct unit 1000 according to the embodiment of the present invention includes the return air assembly 100 according to the above embodiment of the present invention.

[0088] According to the duct machine 1000 of the embodiment of the present invention, by setting the return air assembly 100 according to the above embodiment of the present invention, the accuracy and reliability of the detection of the intelligent detection device 2 can be improved. The duct machine 1000 can be applied to ceilings of different decoration styles, the reliability of the duct machine 1000 is ensured, and the application scope of the duct machine 1000 is expanded. At the same time, the appearance of the duct machine 1000 can be improved to a certain extent, and the visual experience of the user can be enhanced.

[0089] The following is a detailed description of the return air assembly 100 and structure for a duct machine 1000 according to a specific embodiment of the present invention with reference to the accompanying drawings. However, it should be noted that the following description is only exemplary, and after reading the following technical solutions of the present invention, ordinary technicians can obviously combine, replace or modify the technical solutions or some technical features therein, which also falls within the protection scope required by the present invention.

[0090] like Figure 1-Figure 10 As shown, the return air assembly for the duct air conditioner 1000 according to the embodiment of the present invention includes: a return air frame 1, an intelligent detection device 2, a switch door 3, a first drive device 7, a second drive device 5, a filter 8 and an air detection device 9.

[0091] Specifically, the return air frame 1 is suitable for being installed on the ceiling, and the return air frame 1 defines a return air channel a.

[0092] One end of the switch door 3 is rotatably disposed at the return air outlet b to open or close the return air outlet b. Thus, when the duct air conditioner 1000 is in operation, the switch door 3 can open the return air outlet b to return air. When the duct air conditioner 1000 is closed, the switch door 3 can close the return air outlet b. Thus, compared with the prior art, the return air assembly 100 for the duct air conditioner 1000 in the specific embodiment of the present invention cancels the grille at the return air outlet b in the prior art, and adopts the switch door 3 disposed at the return air outlet b. Thus, when the duct air conditioner 1000 stops running, when the user looks up at the return air outlet b, since the switch door 3 closes the return air outlet b, the user can only see the switch door 3, and cannot see the inside of the duct air conditioner 1000, thereby improving the appearance of the return air assembly 100 to a certain extent and enhancing the user's visual experience. On the other hand, when the switch door 3 closes the return air outlet b, it can effectively prevent small particles such as dust in the indoor space from entering the duct machine 1000 through the return air outlet b, thereby improving the reliability of the duct machine 1000 and reducing the frequency of cleaning the duct machine 1000, thereby improving user comfort.

[0093] Specifically, when the return air port b is opened, the switch door 3 rotates toward the air outlet direction of the air outlet c, and the rotation angle γ of the switch door 3 is 30°. There are two switch doors 3, and the two switch doors 3 are arranged in sequence along the width direction of the return air port b. Each switch door 3 is driven to rotate by two first driving devices 7 provided on the return air frame 1. A avoidance opening 3a is provided at the pivot end of the switch door 3 close to the return air port b, and the avoidance opening 3a is formed as a notch formed by a part of the pivot end of the switch door 3 being recessed inward.

[0094] The intelligent detection device 2 is configured to detect whether there is a user in the space where the duct machine 1000 is located, and detect the indoor temperature at the same time. The intelligent detection device 2 is rotatably arranged at the avoidance opening 3a, and the rotation direction is the same as the direction in which the switch door 3 opens the return air opening b. The rotation angle α=60°. It can be seen that the intelligent detection device 2 is arranged at the return air opening b. Therefore, compared with the prior art, in the return air assembly 100 for the duct machine 1000 in the embodiment of the present invention, it is possible to effectively avoid the intelligent detection device 2 being blocked by objects such as light strips and affecting the detection range and detection results of the intelligent detection device 2, thereby improving the accuracy and reliability of the detection of the intelligent detection device 2. The duct machine 1000 can be applied to ceilings of different decoration styles, thereby ensuring the reliability of the operation of the duct machine 1000. At the same time, it can be understood that for the duct air conditioner 1000, the air flow temperature at the return air outlet b is the relatively real temperature of the indoor heat exchange space. Therefore, when the intelligent detection device 2 is arranged at the return air outlet b to detect the indoor temperature, the detection result is more accurate, which can improve the working efficiency of the duct air conditioner 1000 and help improve the user experience.

[0095] Specifically, the intelligent detection device 2 includes a support frame 21, a user detection unit 22 and a temperature detection unit 23. The left and right sides of the support frame 21 are respectively provided with connection columns 211, and the return air frame 1 is provided with a matching portion 11. The connection column 211 is matched and connected with the matching portion 11 and can rotate relative to the matching portion 11. Two observation holes 21a are provided on the support frame 21. The user detection unit 22 and the temperature detection unit 23 are respectively arranged in the two observation holes 21a on the support frame 21 and are independent of each other. The user detection unit 22 is configured to detect whether there is a user in the space where the air duct machine 1000 is located, and the temperature detection unit 23 is configured to detect the indoor temperature.

[0096] The second driving device 5 is arranged on the return air frame 1, and includes a driving motor 51 and a transmission assembly 52. ​​The transmission assembly 52 is formed into a connecting rod structure, and the two ends of the transmission assembly 52 are respectively connected to the driving motor 51 and the support frame 21. Therefore, the process of the second driving device 5 driving the intelligent detection device 2 to rotate is: the driving motor 51 drives and runs, and then the driving motor 51 drives the transmission assembly 52 to move, and the transmission assembly 52 drives the support frame 21 to rotate, thereby realizing the rotation process of the intelligent detection device 2. The driving motor 51 is a stepping motor.

[0097] The switch door 3 is provided with a shielding assembly 4, which includes a first baffle 41, a second baffle 42 and a third baffle 43. The first baffle 41 and the second baffle 42 are respectively located on the left and right sides of the intelligent detection device 2. The first baffle 41 and the second baffle 42 are formed as flat panels and extend vertically upward when the switch door 3 closes the return air port b. The left and right ends of the third baffle 43 are respectively connected to the first baffle 41 and the second baffle 42. The third baffle 43 is formed as a curved panel. When the switch door 3 closes the air outlet c, the third baffle 43 is formed from bottom to top as a curved panel tilted forward. This can avoid, to a certain extent, the user from seeing the inside of the duct machine 1000 through the gap between the avoidance port 3a and the intelligent detection device 2 when the switch door 3 and / or the intelligent detection device 2 rotates, thereby improving the appearance of the duct machine 1000 when in use and enhancing the user's visual experience. Among them, the shielding assembly 4 and the switch door 3 are an integral part. Specifically, the shielding assembly 4 is provided with an avoidance structure that facilitates the intelligent detection device 2 to be matched and connected.

[0098] The electric control device 10 of the duct air conditioner 100 is connected to the intelligent detection device 2 to control the operation state of the duct air conditioner 1000 according to the detection result of the intelligent detection device 2. The electric control device 10 and the intelligent detection device 2 are arranged at intervals, and a wire groove is arranged on the circumferential edge of the return air frame 1, and the wire connecting the electric control device 10 and the intelligent detection device 2 is arranged in the wire groove. The wire groove is defined by folding at least a part of the outer edge of the return air frame 1 upward.

[0099] The filter 8 is arranged in the return air frame 1 and above the switch door 3. Thus, small particles such as dust flowing with the air to the return air port b can be effectively filtered, and small particles such as dust can be prevented from entering the duct machine 1000 to a certain extent, thereby improving the reliability of the duct machine 1000 and reducing the frequency of cleaning the duct machine 1000.

[0100] The air detection device 9 is arranged in the return air frame 1 and above the switch door 3. The air detection device 9 includes a first detection unit 91, a second detection unit 92 and a third detection unit 93. The first detection unit 91 is configured to detect the humidity of the indoor air, the second detection unit 92 is configured to detect the pollution of the indoor air, and the third detection unit 93 is configured to detect the carbon dioxide content of the indoor air. Thus, the duct air conditioner 1000 can remind the user to open the window or turn on the air purifier according to the air quality detected by the air detection device 9. The functions of the duct air conditioner 1000 are diversified to enhance the user experience.

[0101] Other structures and operations of the duct machine 1000 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0102] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0103] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0104] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0105] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A return air assembly for a ducted air conditioner, characterized in that: include: A return air frame, wherein the return air frame defines a return air channel; An intelligent detection device, the intelligent detection device is arranged at the return air outlet of the return air channel, and the intelligent detection device is configured to detect whether there is a user in the space where the air duct unit is located and / or detect the indoor temperature; A switch door, the switch door is arranged at the return air outlet to open or close the return air outlet; The switch door is provided with an escape opening, and the intelligent detection device is arranged at the escape opening; There are multiple switch doors, and the multiple switch doors are arranged in sequence along the width direction of the return air outlet; A shielding component, wherein the shielding component is arranged at the avoidance opening, and when the switch door closes the return air opening, at least a part of the shielding component is located directly above the intelligent detection device; The shielding assembly includes a first baffle, a second baffle and a third baffle, wherein the first baffle and the second baffle are located on the left and right sides of the intelligent detection device, the left and right ends of the third baffle are respectively connected to the first baffle and the second baffle, and the third baffle is located above the intelligent detection device; The shielding assembly and the switch door are an integrated part.

2. The return air assembly for a ducted air conditioner according to claim 1, characterized in that: One end of the switch door is rotatably arranged at the return air outlet. When the return air outlet is opened, the switch door rotates toward the air outlet direction of the air outlet of the air duct machine.

3. The return air assembly for a ducted air conditioner according to claim 2, characterized in that: The rotation angle of the opening and closing door is γ, and γ satisfies: 20°≤γ≤90°.

4. The return air assembly for a ducted air conditioner according to claim 3, characterized in that: The γ=30°.

5. The return air assembly for a ducted air conditioner according to claim 2, characterized in that: The avoidance opening is arranged close to the pivot end of the switch door.

6. The air return assembly for a ducted air conditioner according to claim 5, characterized in that: The intelligent detection device is rotatably arranged at the avoidance opening.

7. The air return assembly for a ducted air conditioner according to claim 6, characterized in that: The rotation direction of the intelligent detection device is the same as the rotation direction of the switch door when the return air outlet is opened.

8. The air return assembly for a ducted air conditioner according to claim 7, characterized in that: The rotation angle of the intelligent detection device is α, and α satisfies: 0°≤α≤60°.

9. The air return assembly for a ducted air conditioner according to claim 1, characterized in that: It also includes a plurality of first driving devices, which are arranged in one-to-one correspondence with the plurality of switch doors, and each of the first driving devices is connected to the corresponding switch door to drive the switch door to rotate.

10. The air return assembly for a ducted air conditioner according to claim 1, characterized in that: The intelligent detection device is fixed at the return air outlet, and a fixing surface of the intelligent detection device forms an angle with a plane where the return air outlet is located.

11. The air return assembly for a ducted air conditioner according to any one of claims 1 to 10, characterized in that: The switch door and the intelligent detection device are respectively arranged on the return air frame.

12. A duct machine, characterized in that: It comprises a return air assembly according to any one of claims 1-11.

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