CN209763445U - Air return device for ducted air conditioner and ducted air conditioner - Google Patents

Abstract

The utility model discloses an air return device and tuber pipe machine for tuber pipe machine, include: the frame is provided with a mounting groove, and the bottom wall of the mounting groove is provided with an air return opening; the filter screen is positioned in the mounting groove, the filter screen is opposite to the air return opening so as to block the air return opening, and the filter screen is connected with the frame in an inserting mode. According to the utility model discloses an air return device for tuber pipe machine, the filter screen is located the mounting groove, and filter screen and frame plug-in connection, when the filter screen was installed, the installation master directly with the filter screen insert the mounting groove can to no longer need be fixed with the filter screen installation with the help of the instrument or use unnecessary mounting, and then can reduce the installation degree of difficulty of filter screen, promote the installation effectiveness of filter screen.

Description

Air return device for ducted air conditioner and ducted air conditioner

Technical Field

The utility model belongs to the technical field of the air conditioning technique and specifically relates to a return air device and tuber pipe machine for tuber pipe machine is related to.

Background

in the correlation technique, in order to avoid the dust to enter the tuber pipe built-in, be provided with the filter screen in the return air device of tuber pipe machine, nevertheless the filter screen has the problem that the installation degree of difficulty is big with the frame, influences the installation effectiveness of filter screen.

SUMMERY OF THE UTILITY MODEL

the utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an air return device for tuber pipe machine, an advantage that the air return device for tuber pipe machine has the installation degree of difficulty low and the installation effectiveness is high.

The utility model also provides an air duct machine, air duct machine includes the above-mentioned air return device that is used for air duct machine.

According to the utility model discloses an air return device for tuber pipe machine, include: the air conditioner comprises a frame, a fan and a controller, wherein the frame is provided with a mounting groove, and an air return opening is formed in the bottom wall of the mounting groove; the filter screen, the filter screen is located in the mounting groove, the filter screen with the return air inlet is relative in order to block the return air inlet, the filter screen with frame plug connection.

According to the utility model discloses an installation degree of difficulty that is used for return air device of tuber pipe machine, filter screen are located the mounting groove, and filter screen and frame plug-in connection, when the filter screen installation, the installation master directly with the filter screen insert the mounting groove can to no longer need be fixed with the filter screen installation with the help of instrument or use unnecessary mounting, and then can reduce the filter screen promotes the installation effectiveness of filter screen.

According to the utility model discloses a some embodiments, return air device still includes: the supporting part is connected with the frame, extends along the length direction of the air return opening and is spaced from the bottom wall of the mounting groove; the guide part, the guide part with frame attach, the guide part with the return air inlet is relative, the one end of guide part is close to the supporting part or with the supporting part is connected the supporting part extremely on the direction of guide part, the guide part orientation is kept away from the direction slope of mounting groove diapire, the filter screen can be followed the guide part slides in the return air inlet with between the supporting part is with the shutoff the return air inlet.

Further, the guide part is a plurality of, and a plurality of the guide part is along the length direction spacing of return air inlet.

in some embodiments of the present invention, the supporting portion is a plurality of, and is a plurality of the supporting portion is followed the width direction of return air inlet is spaced apart, the guide portion is the multiunit, every group the guide portion includes at least one the guide portion, when every group the guide portion includes at least two during the guide portion, at least two the guide portion is followed the length direction of return air inlet is spaced apart, the multiunit the guide portion is with a plurality of the supporting portion one-to-one, the filter screen is a plurality of, and is a plurality of the filter screen is with a plurality of the supporting portion one-to-one, every the filter screen all can follow correspondingly the guide portion slides in return air inlet and corresponding with the shutoff between the supporting portion the return air inlet.

preferably, the number of the supporting portions is two, the two supporting portions are respectively located at two ends of the width direction of the air return opening, the number of the guide portions is two, the two groups of the guide portions are located between the two supporting portions, and the two groups of the guide portions are spaced apart in the width direction of the air return opening.

Furthermore, one of the supporting parts is provided with a jack, the air return device further comprises a supporting rod, one end of the supporting rod is inserted into the jack, and the other end of the supporting rod is connected with the other supporting part through a fastener.

Further, the support rod includes: a main body part, one end of which is inserted into the jack; one end of the bent part is connected with the other end of the main body part, and the other end of the bent part extends towards the direction far away from the filter screen; one end of the connecting part is connected with the other end of the bending part, the connecting part is approximately parallel to the main body part, and the connecting part is connected with the other supporting part through a fastening piece.

In some embodiments of the present invention, the air returning device further comprises: the first limiting rib is arranged in the air return opening, and extends along the length direction of the air return opening.

furthermore, first spacing muscle is a plurality of, and is a plurality of first spacing muscle is followed the width direction interval setting of return air inlet.

Further, the first limiting ribs are divided into a first group and a second group which are spaced along the width direction of the air return opening, and the first group and the second group are respectively adjacent to two ends of the air return opening in the width direction.

Further, the number of the first limiting ribs in the first group is smaller than that of the first limiting ribs in the second group.

In some embodiments of the present invention, the air returning device further comprises: the second limiting rib extends along the width direction of the air return opening and is connected with the first limiting rib.

According to the utility model discloses tuber pipe machine, include: the air return device for the air duct machine is characterized in that the air return device comprises a first air return pipe and a second air return pipe.

According to the utility model discloses tuber pipe machine, the filter screen is located the mounting groove, and filter screen and frame plug-in connection, when the filter screen was installed, the installation master directly with the filter screen insert the mounting groove can to no longer need be fixed with the filter screen installation with the help of the instrument or use unnecessary mounting, and then can reduce the installation degree of difficulty of filter screen, promote the installation effectiveness of filter screen.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

Fig. 1 is a perspective view of an air return device for a duct machine according to an embodiment of the present invention, in which an opening and closing door is in an open state;

Fig. 2 is a cross-sectional view of an air return apparatus for a ducted air conditioner according to an embodiment of the present invention;

Fig. 3 is a perspective view of an air return device for a ducted air conditioner according to an embodiment of the present invention, wherein the opening and closing door is in a closed state;

fig. 4 is a bottom view of a partial structure of an air return device for a duct machine according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view taken at A-A of FIG. 4;

FIG. 6 is a cross-sectional view taken at B-B of FIG. 4;

FIG. 7 is an enlarged view at C in FIG. 5;

Fig. 8 is a plan view of a partial structure of an air return device for a duct machine according to an embodiment of the present invention;

Fig. 9 is an enlarged view at D in fig. 8.

Reference numerals:

The air returning device 100 is provided with a return air device,

A frame 1, a mounting groove 11, an air return opening 111,

The filter screen 2, the supporting part 3, the inserting hole 31,

The guide part 4, the support bar 5,

a main body part 51, a bent part 52, a connecting part 53,

A first limiting rib 61, a second limiting rib 62,

An intelligent detection device 71, a switch door 72, a driving device 81, an electric control device 82,

The air detection device 9, the first detection unit 91, the second detection unit 92, and the third detection unit 93.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

The following describes an air return device 100 for a duct machine according to an embodiment of the present invention with reference to the drawings.

As shown in fig. 1 and 2, an air return device 100 for a duct machine according to an embodiment of the present invention includes: frame 1 and filter screen 2, frame 1 have mounting groove 11, have return air inlet 111 on the diapire of mounting groove 11, and filter screen 2 is located mounting groove 11, and filter screen 2 is relative with return air inlet 111 in order to block return air inlet 111, filter screen 2 and frame 1 plug-in connection.

It can be understood that, filter screen 2 is located mounting groove 11, and filter screen 2 and 1 plug-in connection of frame, when filter screen 2 when the installation, the installation master directly with filter screen 2 insert mounting groove 11 can to no longer need with the help of the instrument or use unnecessary mounting with filter screen 2 installation fixed, and then can reduce filter screen 2's the installation degree of difficulty, promote filter screen 2's installation effectiveness.

In some embodiments of the present invention, as shown in fig. 2 and 4, the air returning device 100 further includes: support portion 3 and guide portion 4, support portion 3 is connected with frame 1, support portion 3 extends along the length direction (the left and right direction as shown in fig. 4) of return air inlet 111, support portion 3 is spaced apart from the diapire of mounting groove 11, guide portion 4 is connected with frame 1, guide portion 4 is relative with return air inlet 111, the one end of guide portion 4 is close to support portion 3 or is connected with support portion 3, in the direction (the direction from outside to inside as shown in fig. 2) of support portion 3 to guide portion 4, guide portion 4 inclines towards the direction of keeping away from the mounting groove 11 diapire, filter screen 2 can slide in between return air inlet 111 and support portion 3 along guide portion 4 to block return air inlet 111.

It can be understood that the supporting part 3 can prevent the filter screen 2 from falling off by arranging the supporting part 3 to support and limit the filter screen 2 in the mounting groove 11, thereby improving the working reliability of the filter screen 2. The guide part 4 has a guiding function for installing the filter screen 2, and the filter screen 2 can slide into the installation groove 11 along the guide part 4 when being installed. Wherein, on the direction of supporting part 3 to guide part 4, the direction slope of 11 diapalls walls of mounting groove is kept away from to guide part 4 orientation, frictional force when from this can reduce filter screen 2 and 4 relative sliding with the guide part, further reduces the degree of difficulty of filter screen 2 installation, reduces the friction loss of filter screen 2 in the installation, further prolongs filter screen 2's life.

For example, the supporting portion 3 is connected to a side wall of the frame 1, when the filter screen 2 is located in the installation groove 11, at least a portion of a lower end surface of the filter screen 2 may be stopped by an upper end surface of the supporting portion 3, the guiding portion 4 is connected to the side wall of the frame 1, the guiding portion 4 is disposed opposite to the air return opening 111 in the up-down direction, an outer side (outer side as shown in fig. 2) end of the guiding portion 4 is adjacent to the supporting portion 3, and the guiding portion 4 is inclined toward a direction away from a bottom wall of the installation groove 11 in a direction from the supporting portion 3 to the guiding portion 4.

In the description of the present invention, it is to be understood that the term "length" is used in an orientation or positional relationship as illustrated in the accompanying drawings for convenience of description and simplicity of description, and does not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

According to the utility model discloses an air return device 100 for tuber pipe machine, filter screen 2 is located mounting groove 11, and filter screen 2 and 1 plug-in connection of frame, and filter screen 2 when the installation, the installation master directly with filter screen 2 insert mounting groove 11 can to no longer need with the help of the instrument or use unnecessary mounting with filter screen 2 installation fixed, and then can reduce the installation degree of difficulty of filter screen 2, promote filter screen 2's installation effectiveness.

Further, as shown in fig. 2 and 4, the guide portion 4 is plural, and the plural guide portions 4 (refer to fig. 5 and 6) are spaced apart in the longitudinal direction (the left-right direction as shown in fig. 4) of the return air opening 111. It can be understood that the plurality of guide portions 4 have a guide function for the sliding of the screen 2 into the mounting groove 11. From this, can realize the guide effect to filter screen 2 in a plurality of positions of the length direction of return air inlet 111 for in the length direction of return air inlet 111, filter screen 2 can be more convenient and accurate the slip-in mounting groove 11, thereby can further reduce the degree of difficulty that filter screen 2 slided into mounting groove 11, further promote filter screen 2's installation effectiveness.

The term "plurality" means two or more.

For example, in some examples of the present invention, two guide portions 4 are provided, and the two guide portions 4 are respectively located at both ends of the length direction of the air return opening 111.

in some embodiments of the utility model, as shown in fig. 5 and fig. 6, supporting part 3 is a plurality of, a plurality of supporting parts 3 are spaced apart along the width direction (refer to the upper and lower direction of fig. 4) of return air inlet 111, guiding part 4 is the multiunit, every group guiding part includes at least one guiding part 4, when every group guiding part includes two at least guiding parts 4, two at least guiding parts 4 are spaced apart along the length direction of return air inlet 111, multiunit guiding part 4 and a plurality of supporting part 3 one-to-one, filter screen 2 is a plurality of, a plurality of filter screens 2 and a plurality of supporting part 3 one-to-one, every filter screen 2 all can follow corresponding guiding part 4 and slide in the return air inlet 111 and with the sealing off return air inlet 111 between the corresponding supporting part 3.

it can be understood that the filter screens 2 can be provided with a plurality of, the supporting parts 3 can be provided with a plurality of, the guiding parts 4 can be provided with a plurality of groups, a plurality of filter screens 2 correspond to a plurality of groups of guiding parts 4 one to one, and a plurality of filter screens 2 also correspond to a plurality of groups of supporting parts 3 one to one. From this, can reduce single filter screen 2 size to reduce single filter screen 2's installation stroke, and then can further reduce filter screen 2's the installation degree of difficulty, promote filter screen 2's installation effectiveness.

In the description of the present invention, it is to be understood that the term "width" is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplicity of description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be taken as limiting the invention.

preferably, as shown in fig. 5 and 6, there are two support portions 3, the two support portions 3 are respectively located at both ends of the width direction (the vertical direction with reference to fig. 4) of the air return opening 111, the two sets of guide portions 4 are located between the two support portions 3, and the two sets of guide portions 4 are spaced apart in the width direction of the air return opening 111. It can be understood that two filter screens 2 are also provided, two filter screens 2 corresponding one-to-one to the two support portions 3, and two filter screens 2 corresponding one-to-one to the two sets of guide portions 4. Therefore, the size of the filter screen 2 is controlled, the installation steps of the filter screen 2 are reduced, and the installation of the filter screen 2 can be completed only by two operations. In particular, each set of guides may comprise only one guide 4, also two guides 4 or more guides 4.

For example, two support portions 3 are symmetrically disposed in the width direction of the air return opening 111, two sets of guide portions 4 are symmetrically disposed in the width direction of the air return opening 111, and two sets of guide portions 4 are located between the two support portions 3, each set of guide portions includes two guide portions 4, and the two guide portions 4 are located at two ends of the air outlet in the length direction.

further, as shown in fig. 5 and 7, one of the support portions 3 is provided with an insertion hole 31, the air return device 100 further includes a support rod 5 (see fig. 2), one end of the support rod 5 is inserted into the insertion hole 31, and the other end of the support rod 5 is connected to the other support portion 3 by a fastener. Bracing piece 5 has support and spacing effect to filter screen 2, can avoid filter screen 2 to drop from mounting groove 11 to can further promote the reliability of filter screen 2 work. In addition, one end of the supporting rod 5 is inserted into the insertion hole 31, and the other end of the supporting rod 5 is connected with the other supporting part 3 through a fastening piece, so that the mounting difficulty of the supporting rod 5 can be reduced, and the mounting efficiency of the supporting rod 5 is improved. Moreover, the other end of the support rod 5 is connected with the other support part 3 through a fastener, so that the connection and fixation strength of the support rod 5 and the support part 3 can be improved, and the working reliability of the support rod 5 is ensured.

Of course, the present invention is not limited thereto, and one end of the support rod 5 may be directly inserted between the support portion 3 and the filter net 2, and the other end of the support rod 5 may be directly inserted between the other support portion 3 and the other filter net 2.

Further, as shown in fig. 2 and 5, the support rod 5 includes: the filter screen comprises a main body part 51, a bent part 52 and a connecting part 53, wherein one end of the main body part 51 is inserted into the insertion hole 31, one end of the bent part 52 is connected with the other end of the main body part 51, the other end of the bent part 52 extends towards the direction away from the filter screen 2, one end of the connecting part 53 is connected with the other end of the bent part 52, the connecting part 53 is approximately parallel to the main body part 51, and the connecting part 53 is connected with the other supporting part 3. From this, can further reduce the degree of difficulty of bracing piece 5 installation, further promote bracing piece 5's installation effectiveness. Simultaneously, can also simplify the complexity of 5 structures of bracing piece, reduce the manufacturing degree of difficulty of bracing piece 5, promote the production efficiency of bracing piece 5, reduce the manufacturing cost of bracing piece 5.

in some embodiments of the present invention, as shown in fig. 2, the main body 51, the bending portion 52 and the connecting portion 53 are integrally formed. The structure, the stability performance of main part 51, kink 52 and connecting portion 53 not only can be guaranteed to integrated into one piece's structure to convenient shaping, it is simple to make, and saved unnecessary assembly part and connection process moreover, improved the assembly efficiency of main part 51, kink 52 and connecting portion 53 greatly, guaranteed the connection reliability of main part 51, kink 52 and connecting portion 53, moreover, the bulk strength and the stability of integrated into one piece's structure are higher, it is more convenient to assemble, the life-span is longer.

In some embodiments of the present invention, as shown in fig. 2 and 8, the air returning device 100 further includes: first spacing muscle 61, first spacing muscle 61 is established in return air inlet 111, and first spacing muscle 61 extends along the length direction of return air inlet 111. It can be understood that the first limiting rib 61 has fixing and limiting functions on the filter screen 2, and the filter screen 2 is prevented from being displaced towards the air return opening 111 under the blowing of the air flow, so that the working reliability of the filter screen 2 can be further improved.

Further, as shown in fig. 2 and 8, the first limiting ribs 61 are plural, and the plural first limiting ribs 61 are arranged at intervals along the width direction of the air return opening 111. Through setting up a plurality of first spacing muscle 61, a plurality of first spacing muscle 61 can form a spacing face in the width direction of return air inlet 111 to further promote first spacing muscle 61 fixed with spacing effect to filter screen 2, further promote the filter effect of filter screen 2 to dust or impurity.

Further, as shown in fig. 2 and 8, the plurality of first limiting ribs 61 are divided into a first group and a second group spaced apart in the width direction of the air return opening 111, and the first group and the second group are respectively adjacent to both ends of the air return opening 111 in the width direction. It is understood that a viewing port may be formed between the first group and the second group spaced apart in the width direction of the return air opening 111, through which a maintenance or installation operator may maintain the devices in the frame 1 or observe the operation state of the devices in the frame 1.

for example, the service may look through the space between the first and second groups, to see if the screen 2 needs to be replaced, to see if the screen 2 is in the correct working position, etc.

further, as shown in fig. 2 and 8, the number of the first stopper ribs 61 in the first group is smaller than the number of the first stopper ribs 61 in the second group. From this, can further promote the structural strength of the frame 1 of first group position, guarantee that a plurality of first spacing muscle 61 of first group are fixed with spacing effect to filter screen 2.

For example, in some examples of the present invention, the first group includes six first limiting ribs 61, and the second group includes two first limiting ribs 61, wherein the spacing between the six first limiting ribs 61 is equal to the spacing between the two first limiting ribs 61.

In some embodiments of the present invention, as shown in fig. 2 and 8, the air returning device 100 further includes: the second limiting rib 62 extends along the width direction of the air return opening 111, and the second limiting rib 62 is connected with the first limiting rib 61. It can be understood that the second limiting rib 62 and the first limiting rib 61 can form a # -shaped structure, and therefore the second limiting rib 62 and the first limiting rib 61 can better fix and limit the filter screen 2, so that the working reliability of the filter screen 2 can be further improved.

The duct machine according to the embodiment of the present invention is described below with reference to the drawings.

According to the utility model discloses tuber pipe machine, include: the air return device 100 for the duct machine is described above.

According to the utility model discloses tuber pipe machine, filter screen 2 is located mounting groove 11, and filter screen 2 and 1 plug-in connection of frame, when filter screen 2 when the installation, the installation master directly with filter screen 2 insert mounting groove 11 can to no longer need with the help of the instrument or use unnecessary mounting with filter screen 2 installation fixed, and then can reduce filter screen 2's the installation degree of difficulty, promote filter screen 2's installation effectiveness.

In some embodiments of the present invention, as shown in fig. 1 and 3, the ducted air conditioner further includes an intelligent detection device 71 and an opening/closing door 72.

specifically, the ducted air conditioner is suitable for being installed in a ceiling, and an air outlet and an air return opening 111 are formed in the ducted air conditioner. The air pipe machine supplies air to the indoor through the air outlet and returns air through the air return port 111, and therefore the heat exchange function of the air pipe machine can be achieved.

a smart detection device 71 is provided on the frame 1, the smart detection device 71 being configured to detect whether a user is present in the space in which the ducted air conditioner is located and/or to detect the indoor temperature.

Therefore, the intelligent detection device 71 can be configured to detect whether the air duct machine is located in a space and send the detection result to the control system of the air duct machine, and the control system of the air duct machine can control the operation state of the air duct machine according to the detection result. For another example, when the intelligent detection device 71 detects that a user is in the space where the air duct machine is located, the control system may turn on the air duct machine to cool or heat the indoor space, so as to improve the comfort of the user and make the use of the air duct machine more intelligent and flexible.

The intelligent detection device 71 can also be configured to detect the indoor temperature of the space where the ducted air conditioner is located, and then feed the detection result back to the control system, and the control system automatically adjusts the heat exchange temperature of the ducted air conditioner 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.

Of course, the intelligent detection device 71 can also be configured to detect whether the space of the duct type air conditioner has a user or not and detect the indoor temperature, so that the functions of the intelligent detection module can be expanded, and the intelligent degree of the duct type air conditioner can be improved.

Further, as shown in fig. 1 and 3, a switching door 72 is provided on the frame 1 to open or close the return air opening 111. It can be seen that the switch door 72 opens the return air opening 111 to return air when the air duct machine is operating. When the air duct machine is closed, the air return opening 111 can be closed by the switch door 72, and when a user looks up the air return opening 111, the air return opening 111 is closed by the switch door 72, so that the user can only see the switch door 72 and cannot see the interior of the air duct machine, the appearance attractiveness of the air duct machine can be improved to a certain extent, and the visual perception of the user is improved. On the other hand, when the air return opening 111 is closed by the switch door 72, small particles such as dust in the indoor space can be effectively prevented from entering the air duct machine through the air return opening 111, the reliability of the air duct machine is improved, the frequency of cleaning the air duct machine can be reduced, and the comfort of a user is improved.

In some embodiments of the present invention, the rotation angle of the switch door 72 is γ, and when γ satisfies: when the angle gamma is more than or equal to 20 degrees and less than or equal to 90 degrees, the user can be effectively prevented from watching the inside of the air duct machine through opening and closing the door 72, and the visual perception of the user can be improved. Alternatively, 22 ≦ γ ≦ 86. Alternatively, 22.5 ≦ γ ≦ 78.5. Alternatively, 27.3 ≦ γ ≦ 60.2. Optionally, γ is 30 °.

in some embodiments of the present invention, the smart sensor 71 is rotatably disposed on the frame 1. Therefore, the detection range of the intelligent detection device 71 can be expanded, the detection accuracy and reliability of the intelligent detection device 71 are improved, and the reliability of the air duct machine is further improved.

In some embodiments of the present invention, the rotation direction of the intelligent detecting device 71 is the same as the rotation direction of the switch door 72 when the return air inlet 111 is opened. Therefore, the rotation direction of the intelligent detection device 71 is the air outlet direction towards the air outlet, so that whether the intelligent detection device 71 detects the temperature in the air outlet corresponding area and/or the temperature in the detection chamber is detected, the working efficiency of the air duct machine is improved, and the use experience of a user is promoted.

In some embodiments of the present invention, the rotation angle of the intelligent detecting device 71 is α, and when α satisfies: when alpha is more than or equal to 0 degree and less than or equal to 60 degrees, the accuracy and the reliability of the detection of the intelligent detection device 71 can be ensured, and the reliability of the air duct machine is further ensured. Optionally, 5 ≦ α ≦ 55. Optionally, 10.5 ≦ α ≦ 30.2. Optionally, α is 60 °.

According to the utility model discloses a some embodiments, switch door 72 is a plurality of, and a plurality of switch doors 72 are arranged along the width direction of return air inlet 111 in proper order. It can be understood that, when the size of the air return opening 111 is fixed, the structure of the plurality of switch doors 72 is beneficial to reducing the weight of a single switch door 72, reducing the pressure borne by the same position of the air duct machine, improving the reliability of the structure of the air duct machine, and prolonging the service life of the air duct machine.

In some embodiments of the present invention, as shown in fig. 1, the ducted air conditioner further includes a plurality of driving devices 81, the plurality of driving devices 81 are disposed in a one-to-one correspondence with the plurality of switch doors 72, and each driving device 81 is connected to the corresponding switch door 72 to drive the switch door 72 to rotate. Therefore, the plurality of opening and closing doors 72 are driven by the corresponding driving devices 81 to rotate so as to open or close the air return opening 111, and the manner of opening or closing the air return opening 111 by the opening and closing doors 72 is simple and reliable. The switch doors 72 are mutually independent, when one switch door 72 fails and cannot open the air return opening 111, the air return opening 111 can be opened through other switch doors 72, so that the heat exchange function of the air duct machine can be still realized, and the reliability of the air duct machine is improved.

According to some embodiments of the utility model, as shown in fig. 4, the ducted air conditioner further includes electric control device 82, and electric control device 82 is connected with intelligent detection device 71 in order to control the running state of ducted air conditioner according to intelligent detection device 71's testing result. Therefore, the intelligent detection device 71 can feed the detection result back to the electric control device 82, and the electric control device 82 controls the operation state of the air duct machine according to the specific detection result of the intelligent detection device 71.

For example, when the intelligent detection device 71 detects that there is no user in the space where the air duct machine is located and feeds back the detection result to the electronic control device 82, the electronic control device 82 may turn off the air duct machine or control the driving device and the compressor in the air duct machine to stop running, and only turn on the intelligent detection device 71 to detect whether there is a user at any time. Thereby being beneficial to the user to save the electricity consumption, reducing the use cost and reducing the energy consumption of the air duct machine. After the intelligent detection device 71 detects that a user is in the space where the air duct machine is located and feeds the detection result back to the electric control device 82, the electric control device 82 can control the driving device and the compressor in the air duct machine to start to operate, so that the indoor space can be effectively cooled or heated, the comfort of the user is improved, and the air duct machine is more intelligent and flexible to use.

for another example, when the intelligent detection device 71 detects that the indoor temperature of the space where the air duct machine is located is lower than the target temperature set by the user and feeds the detection result back to the electric control device 82, the electric control device 82 can improve the heat exchange efficiency of the air duct machine, so that the target temperature set by the user can be reached as soon as possible, and the use experience of the user is improved. When the intelligent detection device 71 detects that the indoor temperature of the space where the air duct machine is located is higher than the target temperature set by the user and feeds the detection result back to the electric control device 82, the electric control device 82 can control the air duct machine to refrigerate or close the air duct machine according to the detection result.

in some embodiments of the present invention, as shown in fig. 4 and 5, the electric control device 82 and the intelligent detection device 71 are disposed at an interval, the circumferential edge of the frame 1 is provided with a wire passing groove, and the wire connecting the electric control device 82 and the intelligent detection device 71 is disposed in the wire passing groove. Therefore, the reliability of connection between the electric control device 82 and the intelligent detection device 71 is guaranteed, an operator can conveniently connect the electric control device 82 and the intelligent detection device 71, the wire is prevented from interfering with other parts, and the reliability of the air duct machine is improved.

In some embodiments of the present invention, at least a portion of the outer edge of the frame 1 is folded over to define a wire passage channel. Therefore, the wire passing groove is simple in structure and convenient to manufacture. While contributing to an increase in the structural strength and reliability of the frame 1.

According to some embodiments of the present invention, as shown in fig. 8 and 9, the ducted air conditioner further includes an air detection device 9, the air detection device 9 is disposed in the frame 1 and located above the opening/closing door 72, the air detection device 9 includes at least one of a first detection portion 91, a second detection portion 92, and a third detection portion 93, the first detection portion 91 is configured to detect humidity of the indoor air, the second detection portion 92 is configured to detect pollution of the indoor air, and the third detection portion 93 is configured to detect carbon dioxide content of the indoor air. So that the ducted air conditioner can remind the user to open a window or open an air purifier and the like according to the air quality detected by the air detection device 9. The function of messenger's tuber pipe machine is diversified, promotes user's use and experiences.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (13)

1. An air return device for a ducted air conditioner, comprising:

The air conditioner comprises a frame, a fan and a controller, wherein the frame is provided with a mounting groove, and an air return opening is formed in the bottom wall of the mounting groove;

The filter screen, the filter screen is located in the mounting groove, the filter screen with the return air inlet is relative in order to block the return air inlet, the filter screen with frame plug connection.

2. The air return apparatus for a duct machine according to claim 1, further comprising:

The supporting part is connected with the frame, extends along the length direction of the air return opening and is spaced from the bottom wall of the mounting groove;

the guide part, the guide part with frame attach, the guide part with the return air inlet is relative, the one end of guide part is close to the supporting part or with the supporting part is connected the supporting part extremely on the direction of guide part, the guide part orientation is kept away from the direction slope of mounting groove diapire, the filter screen can be followed the guide part slides in the return air inlet with between the supporting part is with the shutoff the return air inlet.

3. The return air device for a duct machine according to claim 2, wherein the guide portion is plural, and plural guide portions are spaced apart in a length direction of the return air inlet.

4. The return air device for the duct unit according to claim 2, wherein the plurality of support portions are provided, the plurality of support portions are spaced apart in a width direction of the return air opening, the plurality of guide portions are provided in plural groups, each group of guide portions includes at least one guide portion, when each group of guide portions includes at least two guide portions, the at least two guide portions are spaced apart in a length direction of the return air opening, the plurality of groups of guide portions correspond to the plurality of support portions one to one, the plurality of filter screens correspond to the plurality of support portions one to one, and each filter screen can slide into a space between the return air opening and the corresponding support portion along the corresponding guide portion to block the return air opening.

5. The return air device for the duct unit according to claim 4, wherein the number of the support portions is two, the two support portions are respectively located at both ends of the return air opening in the width direction, the number of the guide portions is two, the two guide portions are located between the two support portions, and the two guide portions are spaced apart in the width direction of the return air opening.

6. The air return device for the duct machine according to claim 5, wherein one of the support portions is provided with a jack, the air return device further includes a support rod, one end of the support rod is inserted into the jack, and the other end of the support rod is connected to the other support portion by a fastener.

7. The air return apparatus for a duct machine according to claim 6, wherein the support rod includes:

a main body part, one end of which is inserted into the jack;

One end of the bent part is connected with the other end of the main body part, and the other end of the bent part extends towards the direction far away from the filter screen;

One end of the connecting part is connected with the other end of the bending part, the connecting part is approximately parallel to the main body part, and the connecting part is connected with the other supporting part through a fastening piece.

8. the air return apparatus for a duct machine according to claim 2, further comprising:

The first limiting rib is arranged in the air return opening, and extends along the length direction of the air return opening.

9. The return air device for the duct unit according to claim 8, wherein the first limiting rib is provided in plurality, and the plurality of first limiting ribs are provided at intervals in a width direction of the return air inlet.

10. The return air device for a duct machine according to claim 9, wherein the plurality of first stopper ribs are divided into first and second groups spaced apart in the width direction of the return air inlet, the first and second groups being respectively adjacent to both ends in the width direction of the return air inlet.

11. The air return apparatus for a duct machine according to claim 10, wherein the number of the first limit ribs in the first group is smaller than the number of the first limit ribs in the second group.

12. The air return apparatus for a duct machine according to claim 8, further comprising: the second limiting rib extends along the width direction of the air return opening and is connected with the first limiting rib.

13. a ducted air conditioner, comprising: the return air device for the duct machine according to any one of claims 1 to 12.