CN221257224U - Fresh air volute, fresh air module and air pipe machine - Google Patents

Abstract

The utility model provides a fresh air volute, a fresh air module and an air pipe machine, which can reduce the mould cost and the production cost of the fresh air volute. The new trend spiral case includes: the volute body is provided with an air inlet, a fresh air outlet and an exhaust outlet, and is of an integrated structure, and the central axis of the air inlet is arranged along the axial direction of the volute body; the cover plate is arranged on one axial side of the volute body, is arranged opposite to the air inlet, covers the volute body and surrounds the air outlet channel with the volute body; the air duct comprises a fresh air duct and an exhaust air duct, the fresh air duct comprises an air flow channel formed by communicating a fresh air inlet, an air inlet and a fresh air outlet, and the exhaust air duct comprises an air flow channel formed by communicating an air inlet and an exhaust outlet.

Description

Fresh air volute, fresh air module and air pipe machine

Technical Field

The application relates to the technical field of air conditioners, in particular to a fresh air volute, a fresh air module and an air pipe machine.

Background

At present, a traditional air pipe machine volute with a fresh air function is generally assembled by a plurality of parts such as an upper volute, a lower volute, an air outlet frame and the like. The upper volute and the lower volute are of volute structures, and the structure of a fresh air inlet, a fresh air outlet, an air duct and the like is spliced and surrounded, and then an air outlet frame is arranged, so that a complete fresh air volute is formed. This approach results in higher die costs for the fresh air volute and higher production costs for the entire fresh air volute.

Disclosure of utility model

The application aims to solve the technical problem of providing a fresh air volute, a fresh air module and an air pipe machine, which can reduce the mould cost and the production cost of the fresh air volute.

To this end, an embodiment of the present application provides a fresh air volute, including: the volute comprises a volute body, a fan and a fan, wherein the volute body is provided with an air inlet, a fresh air outlet and an exhaust outlet, the volute body is of an integrated structure, and the central axis of the air inlet is arranged along the axial direction of the volute body; the cover plate is arranged on one axial side of the volute body, is opposite to the air inlet, covers the volute body and surrounds the air outlet with the volute body; the air duct comprises a fresh air duct and an exhaust air duct, the fresh air duct comprises a fresh air inlet, an air inlet and an air flow channel formed by communicating fresh air outlets, and the exhaust air duct comprises an air inlet and an air flow channel formed by communicating exhaust outlets.

The fresh air volute provided by the embodiment of the application comprises a volute main body and a cover plate. The spiral case main part is integrated into one piece structure to be equipped with air intake, wind wheel installation cavity, new trend entry, new trend export, structure such as export of airing exhaust, and the apron links to each other with the axial one end of spiral case main part only, surrounds the air flue with the spiral case main part. Therefore, the volute structure is only required to be arranged on the volute body, the cover plate does not need to be arranged into the volute structure, and the cover plate can be formed even without a die, so that the die structure of the fresh air volute is facilitated to be simplified, the die cost is facilitated to be reduced, and the production cost of the fresh air volute is reduced.

And, new trend spiral case not only is equipped with the new trend wind channel, still is equipped with the wind channel of airing exhaust, and the new trend wind channel can be used for discharging indoor fresh air into indoor space, and the wind channel of airing exhaust can be with indoor dirty air discharge to outdoor space to be favorable to abundant new trend module's function, make new trend module both have the new trend mode, also have the mode of airing exhaust, and new trend mode and the mode of airing exhaust all are favorable to improving indoor air quality. Thus, when the outdoor air quality is good, the indoor air quality can be improved through a fresh air mode; when the outdoor air quality is poor, the indoor air quality can be improved through an exhaust mode, so that the use experience of the air duct machine is improved.

The embodiment of the application also provides a fresh air module, which comprises: a housing; and the fresh air volute of any one of the above embodiments, disposed within the housing and connected to the housing.

The embodiment of the application also provides an air duct machine, which comprises: an air duct machine main body; and the fresh air module according to any one of the above embodiments, which is connected to the main body of the air duct machine.

Drawings

Fig. 1 is a schematic perspective view of an air duct machine according to some embodiments of the present application;

FIG. 2 is a schematic diagram illustrating an exploded structure of a fresh air module according to some embodiments of the present application;

FIG. 3 is a partially exploded view of the fresh air module of FIG. 2;

FIG. 4 is a schematic diagram of a front view structure of the assembled fresh air module shown in FIG. 2;

FIG. 5 is a schematic view of A-A cross-sectional view of the fresh air module of FIG. 4 in a first state (fresh air mode);

FIG. 6 is a schematic view of A-A cross-sectional view of the fresh air module of FIG. 4 in a second state (exhaust mode);

FIG. 7 is a schematic diagram of a cross-sectional structure of the fresh air module B-B shown in FIG. 4;

FIG. 8 is a schematic view of a partial perspective view of the fresh air module of FIG. 2 in a first state (fresh air mode) after assembly;

FIG. 9 is a schematic view of a partial perspective view of the fresh air module of FIG. 2 in a second state (exhaust mode) after assembly;

FIG. 10 is a schematic view of a partial top view of the assembled fresh air module of FIG. 2;

FIG. 11 is a schematic view of a cross-sectional C-C view of the fresh air module of FIG. 10 in a first state (fresh air mode);

FIG. 12 is an enlarged schematic view of the portion D in FIG. 11;

FIG. 13 is a schematic view of a cross-sectional C-C view of the fresh air module of FIG. 10 in a second state (exhaust mode);

FIG. 14 is a schematic view of a partial perspective structure of the assembled fresh air module shown in FIG. 2;

FIG. 15 is a schematic perspective view of the volute body of FIG. 2;

FIG. 16 is a schematic perspective view of another view of the volute body of FIG. 15;

FIG. 17 is a schematic perspective view of a further view of the volute body of FIG. 15;

FIG. 18 is a schematic perspective view of a further view of the volute body of FIG. 15;

Fig. 19 is a schematic view of a partial perspective structure of the assembled fresh air module shown in fig. 2.

In the drawings, the list of components represented by the various numbers is as follows:

The spiral case comprises a spiral case main body, a first side plate, a 111 fresh air outlet, a first mounting part, a first shaft hole 1121, a second mounting part 113, a second shaft hole 1131, a third mounting part 114, a third shaft hole 1141, a fourth mounting part 115, a fourth shaft hole 1151, a first wire button 116, a second side plate 12, a fresh air inlet 121, a third side plate 13, a end plate 14, an air inlet 141, a switching port 142, an air outlet 15, a tongue plate 16, a circular arc section 161, a diffusion section 162, a second support part 163, a diversion section 164, a first reinforcing flange 171, a third support part 1711, a fourth support part 1712, a second reinforcing flange 172, a reinforcing rib 1721, a first sealing flange 181, a second sealing flange 182, a third sealing flange 183, a second wire button 1831, a fourth sealing flange 184, a fifth sealing flange 185, a sixth sealing flange 186 and a seventh sealing flange 187;

2 cover plate, 21 wind-guiding bulge;

3 shells, 31 top plates, 32 bottom plates, 321 overhaul plates, 3211 exhaust inlets, 322 overhaul gaps, 33 shells, 331 avoidance gaps, 332 folded edges, 34 air outlet baffles, 341 air outlets and 35 motor cavities;

41 first motor, 42 second motor, 43 third motor, 44 fourth motor;

51 fresh air inlet air valve, 52 switching air valve, 53 exhaust air outlet air valve, 54 fresh air outlet air valve;

6, a filter screen assembly, 61, a fresh air inlet area and 62 exhaust and inlet areas;

7 air pipe joints, 71 a first skirt, 72 a second skirt, 73 sealing grooves and 74 sealing elements;

8, an electric control box;

91 wind guide ring, 92 wind wheel, 93 wind wheel motor, 94 motor gland;

100 fresh air modules, 200 air duct machine bodies, 2022 air outlets, 2024 air return openings and 204 electric control modules.

Detailed Description

The principles and features of the present application are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the application and are not to be construed as limiting the scope of the application.

As shown in fig. 1 to 19, the embodiment of the application provides a fresh air volute, a fresh air module 100 and an air duct machine. The fresh air module 100 may be used for an air duct machine, or may be used for other kinds of air treatment equipment.

As shown in fig. 1, the air duct machine provided by the embodiment of the application includes an air duct machine main body 200 and a fresh air module 100. The ducted machine body 200 may be an intra-ducted machine. The air pipe inner machine can be connected with the air pipe outer machine. The air pipe inner machine is concealed in the suspended ceiling, and the air pipe outer machine is installed outdoors. The ducted air conditioner main body 200 may be an integrated machine. The main body 200 of the air conditioner may include a cabinet and an electronic control module 204, and the fresh air module 100 and the electronic control module 204 may be disposed at opposite sides of the cabinet, as shown in fig. 1.

As shown in fig. 2, 3, 4, and 10, the fresh air module 100 includes: a housing 3 and a fresh air volute. The fresh air module 100 may further include: wind wheel 92, wind wheel motor 93, motor gland 94, wind guiding ring 91, filter screen subassembly 6, air outlet baffle 34, automatically controlled box 8 etc. structures.

As shown in fig. 1, the main body 200 of the air duct machine is provided with an air return opening 2024, and the air return opening 2024 of the main body 200 of the air duct machine allows indoor air to enter the main body 200 of the air duct machine. As shown in fig. 1, the air duct main body 200 is further provided with an air outlet 2022, and the air outlet 2022 of the air duct main body 200 supplies air after heat exchange in the air duct main body 200 to be discharged into a room. The main body 200 of the air duct machine is generally rectangular, and the air outlet 2022 of the main body 200 of the air duct machine may be provided on the front side wall of the air duct machine, and the air return 2024 of the main body 200 of the air duct machine may be provided on the bottom wall of the air duct machine. Here, the air return opening 2024 is located on the end wall of the air duct machine that is disposed downward, based on the state of the air duct machine after the installation is completed after the shipment, that is, after the installation is completed, the air return opening 2024 is disposed downward. However, during the assembly process before shipment, the return air inlet 2024 of the ducted air machine may be disposed upward.

The air pipe machine is concealed in the suspended ceiling. The side plate of the suspended ceiling is provided with an air supply port which is arranged corresponding to the air outlet 2022 of the air duct main body 200, and an air supply grille can be arranged at the air supply port. The bottom plate of the suspended ceiling is provided with an air return opening which is correspondingly arranged with the air return opening 2024 of the air duct main body 200, and the air return opening of the suspended ceiling can be provided with an air return grid. And, the return air inlet of furred ceiling is also the access hole (note as the second access hole, as shown in fig. 1) of tuber pipe machine for the maintenance to tuber pipe machine in the use. During maintenance, the air return grille can be detached, and the second maintenance hole can be exposed to maintain the air duct machine main body 200.

As shown in fig. 1, the fresh air module 100 is provided on one side of the air duct main body 200 in the longitudinal direction (i.e., the left-right direction in fig. 1), and is connected to the air duct main body 200.

Therefore, the depth of the air duct machine is not increased (namely, the air duct machine horizontally stretches into the side wall of the suspended ceiling), and the second overhaul port can form a long and narrow structure, so that the air duct machine meets the current main stream decoration style.

In the related art, a traditional air pipe machine volute with a fresh air function is generally assembled by a plurality of parts such as an upper volute, a lower volute, an air outlet frame and the like. The upper volute and the lower volute are in a volute structure, and the structure of a fresh air inlet 121, a fresh air outlet 111, an air channel and the like is spliced and surrounded, and an air outlet frame is arranged on the upper volute to form a complete fresh air volute. This approach results in higher die costs for the fresh air volute and higher production costs for the entire fresh air volute.

The embodiment of the application provides a fresh air volute, which comprises the following components: the scroll body 1 and the cover plate 2 are shown in fig. 2, 7, 11, 13, and 14.

As shown in fig. 15 to 18, the scroll body 1 is provided with an air inlet 141, a fresh air inlet 121, a fresh air outlet 111, and an exhaust air outlet 15. The volute body 1 is of an integral structure. The center axis of the air inlet 141 is disposed along the axial direction of the scroll body 1.

As shown in fig. 2, 7, 11, 13, and 14, the cover plate 2 is located at one axial side of the scroll body 1 and is disposed opposite to the air inlet 141. The cover plate 2 is covered on the volute body 1 and surrounds the air channel with the volute body 1. The air duct comprises a fresh air duct and an exhaust air duct. The fresh air duct comprises an airflow channel formed by communicating the fresh air inlet 121, the air inlet 141 and the fresh air outlet 111. The exhaust air duct comprises an air flow channel formed by communicating the air inlet 141 and the exhaust outlet 15.

The fresh air volute provided by the embodiment of the application comprises a volute body 1 and a cover plate 2. The volute body 1 is of an integrated structure and is provided with an air inlet 141, a wind wheel mounting cavity, a fresh air inlet 121, a fresh air outlet 111, an exhaust air outlet 15 and the like, while the cover plate 2 is only connected with one axial end of the volute body 1 and surrounds an air channel with the volute body 1. Therefore, the volute structure is only required to be arranged on the volute body 1, the cover plate 2 does not need to be arranged into the volute structure, and the cover plate 2 can be formed even without a die, so that the die structure of the fresh air volute is simplified, the die cost is reduced, and the production cost of the fresh air volute is reduced.

And, the new trend spiral case not only is equipped with the new trend wind channel, still is equipped with the wind channel of airing exhaust, and the new trend wind channel can be used for discharging indoor fresh air into indoor space, and the wind channel of airing exhaust can be with indoor dirty air discharge to outdoor space to be favorable to abundant new trend module 100's function, make new trend module 100 both have the new trend mode, also have the mode of airing exhaust, and new trend mode and the mode of airing exhaust all are favorable to improving indoor air quality. Thus, when the outdoor air quality is good, the indoor air quality can be improved by the fresh air mode, as shown in fig. 5, 8 and 11; when the outdoor air quality is poor, the indoor air quality can be improved through the exhaust mode, as shown in fig. 6, 9 and 13, so that the use experience of the air duct machine is improved.

After the air pipe machine is assembled, the air inlet 141 of the fresh air volute is arranged downwards, so that indoor sewage air is sucked by using the air return inlet 2024 on the bottom wall of the suspended ceiling. The cover plate 2 is covered on the top end of the fresh air volute.

Here, "downward" and "top" are based on a state in which the air duct machine is concealed in the suspended ceiling, and the direction toward the floor is downward and the direction toward the ceiling is upward, and the bottom plate 32 and the top plate 31 of the case 3 of the fresh air module 100 are downward and upward. But the upper and lower relationship of the bottom plate 32 and the top plate 31 may be changed during the assembly process before shipment of the ducted air conditioner. Such as: the air inlet 141 can be upwards arranged, the top plate 31 of the shell 3 can be a chassis, the wind wheel motor 93 can be fixed on the top plate 31, and after internal structures such as the wind wheel 92, the wind wheel motor 93, a fresh air volute are installed, the bottom plate 32 of the shell 3 is covered.

In some exemplary embodiments, the cover plate 2 is a foam piece.

Like this, apron 2 can play sealed effect and heat preservation effect, can save the heat preservation sponge between new trend spiral case and the new trend module 100 casing 3 to be favorable to further simplifying the structure of new trend module 100, further reduction in production cost. And like this, the new trend spiral case has adopted integrated design to reduced the spare part quantity of new trend module 100, be favorable to improving the assembly efficiency of new trend module 100, and avoided the sealed clearance between a plurality of spiral case parts mutually supporting in the correlation technique, made the cost of new trend spiral case better, noise sealing performance is better. Of course, the cover plate 2 is not limited to a foam.

In some exemplary embodiments, the exhaust outlet 15 is configured to communicate with the fresh air inlet 121, as shown in fig. 6, 9, and 13. The exhaust air duct also comprises an airflow channel formed by communicating the exhaust outlet 15 with the fresh air inlet 121.

Thus, the fresh air inlet 121 is used for both outdoor fresh air entering the fresh air volute and indoor dirty air exiting the fresh air volute, as shown in fig. 6, 9 and 13. Thus, the outdoor fresh air can enter the room and the indoor polluted air can be discharged outdoors through the fresh air pipeline connected with the fresh air inlet 121, so that an exhaust pipeline can be omitted, the structure of the air duct machine is simplified, and the cost of the air duct machine is reduced.

In some exemplary embodiments, the volute body 1 is further provided with a switching port 142 that can communicate with the fresh air inlet 121, as shown in fig. 5 and 6. The fresh air inlet 121 is arranged to be capable of communicating with the air inlet 141 through the switching port 142; the fresh air inlet 121 is provided so as to be capable of communicating with the switching port 142 and the exhaust air outlet 15 in a selective manner to switch the air flow direction of the fresh air inlet 121.

In other words, the switching port 142 and the exhaust outlet 15 cooperate to control the airflow direction of the fresh air module 100, so that the fresh air module 100 switches between the fresh air mode and the exhaust mode. The fresh air mode refers to a working mode of introducing outdoor fresh air into an indoor space. The exhaust mode refers to an operation mode in which indoor polluted air is exhausted outdoors.

The exhaust outlet 15 and the switching port 142 are provided in communication with the fresh air inlet 121. In other words, the exhaust outlet 15 and the switching port 142 cannot communicate with the fresh air inlet 121 at the same time, and only one of them can communicate with the fresh air inlet 121 in the same operation mode.

The fresh air inlet 121 is provided so as to be capable of communicating with the air intake 141 through the switching port 142. Namely: in the fresh air mode, the fresh air inlet 121 is communicated with the switching port 142 and is isolated from the air exhaust outlet 15, the switching port 142 is positioned on the downstream side of the fresh air inlet 121 and on the upstream side of the air inlet 141, and fresh air sequentially flows through the fresh air inlet 121, the switching port 142 and the air inlet 141. In the exhaust mode, the fresh air inlet 121 is communicated with the exhaust outlet 15 and is separated from the switching port 142, the exhaust outlet 15 is positioned on the downstream side of the air inlet 141 and on the upstream side of the fresh air inlet 121, and indoor polluted air sequentially flows through the air inlet 141, the exhaust outlet 15 and the fresh air inlet 121.

Thus, the working mode of the fresh air volute can be switched by opening and closing the switching port 142 and opening and closing the air exhaust outlet 15, so that the switching between the fresh air mode and the air exhaust mode is realized, and the structure is simple and easy to realize.

When the switching port 142 is opened and the air exhaust outlet 15 is closed, the fresh air inlet 121 can be communicated with the switching port 142 and is separated from the air exhaust outlet 15, and then the outdoor fresh air can sequentially flow through the fresh air inlet 121, the switching port 142, the air inlet 141 and the fresh air outlet 111 to enter the indoor space, as shown in fig. 5, 8 and 11.

When the switching port 142 is closed and the air exhaust outlet 15 is opened, the fresh air inlet 121 can be communicated with the air exhaust outlet 15 and is separated from the switching port 142, so that indoor polluted air can sequentially flow through the air inlet 141, the air exhaust outlet 15 and the fresh air inlet 121 and be exhausted to the outdoor space, as shown in fig. 6, 9 and 13.

In some exemplary embodiments, the switching port 142 and the air inlet port 141 are provided on an end wall of the scroll body 1, and the switching port 142 is located radially outward of the air inlet port 141, as shown in fig. 15.

The fresh air inlet 121 and the fresh air outlet 111 are provided on the side wall of the scroll body 1 as shown in fig. 15 and 18. The exhaust outlet 15 is disposed inside the volute body 1 and between the fresh air inlet 121 and the fresh air outlet 111, as shown in fig. 5 and 6, and the exhaust outlet 15 is located radially outside the air inlet 141.

In this way, the flow direction of the air flow in the fresh air volute can be controlled only by controlling the opening and closing of the switching port 142, the air exhaust outlet 15 and the fresh air outlet 111, and further the working mode switching of the fresh air volute is controlled. And the fresh air duct and the exhaust duct can share a part of airflow channels, so that the miniaturization of the fresh air volute is facilitated.

Whether in fresh air mode or exhaust mode, the air flow enters the wind wheel mounting cavity in the axial direction through the air inlet 141 and then is exhausted in the tangential direction of the wind wheel mounting cavity, and flows to the fresh air outlet 111 (fresh air mode) or flows to the exhaust outlet 15 and the fresh air inlet 121 (exhaust mode). Therefore, when the fresh air mode and the exhaust mode are switched, the steering of wind wheel 92 does not need to be changed. This is advantageous for simplifying the electrical control procedure of wind wheel motor 93 and also for simplifying the structure of the blades of wind wheel 92.

In some exemplary embodiments, the central axis of the fresh air inlet 121 and the central axis of the exhaust air outlet 15 are staggered in the axial direction (i.e., up-down direction) of the volute body 1, as shown in fig. 13. The distance between the central axis of the fresh air inlet 121 and the cover plate 2 is greater than the distance between the central axis of the exhaust air outlet 15 and the cover plate 2. In other words, the position of the central axis of the fresh air inlet 121 is lower than the position of the central axis of the exhaust air outlet 15, as shown in fig. 13.

This facilitates dividing the duct area near the fresh air inlet 121 into two layers, one for fresh air to flow toward the intake 141 and the other for dirty air to be discharged outward.

The cover plate 2 is provided with an air guiding protrusion 21 as shown in fig. 13. The air guide protrusion 21 is provided to guide the air flow discharged from the air discharge outlet 15 toward the fresh air inlet 121. The air guiding protrusions 21 may have a circular arc-shaped guiding surface. The wind guide protrusion 21 may be integrally formed with the cover plate 2.

The wind guide protrusion 21 can play a role in guiding the polluted wind, so that the polluted wind smoothly flows to the fresh air inlet 121, the phenomenon that excessive air flow loss is caused by large-angle turning in the flowing process of the polluted wind is avoided, the generation of excessive noise is avoided, and in addition, the heat preservation effect on the volute of the part is also realized.

In some exemplary embodiments, the volute body 1 includes: side gussets, volute tongue 16 and end plate 14 as shown in figures 17 and 18. The volute tongue plate 16 is provided on the inner side of the side wall plate. The end plate 14 is connected to the side wall plate and the volute tongue plate 16. One end of the volute tongue plate 16 is connected with the side wall plate, and the other end of the volute tongue plate is arranged at intervals with the side wall plate to form an air outlet channel communicated with the wind wheel installation cavity.

The air intake port 141 and the switching port 142 are provided on the end plate 14 as shown in fig. 15. The end plates 14 may not be entirely flat plate-like structures. Such as: the end plate 14 may be partially inclined, the switching port 142 may be provided at the inclined portion of the end plate 14, and the area of the end plate 14 where the air inlet port 141 is provided may be a flat plate-like structure.

The fresh air inlet 121 and the fresh air outlet 111 are provided at the side wall plate as shown in fig. 15 and 18. The exhaust outlet 15 is located between the side closure plate and the other end of the volute tongue plate 16 as shown in figure 16. The peripheral structure of the side wall plate can be irregular, can comprise an arc part and also can comprise a straight part, as shown in fig. 15 and 18, and can be specifically and reasonably designed according to the functional requirements of the volute.

In some exemplary embodiments, the end of the volute body 1 facing the cover plate 2 (i.e., the upper end) is provided with a first reinforcing bead 171, as shown in fig. 17. The first reinforcing bead 171 is provided along the peripheral direction of the side wall plate. The arrangement of the first reinforcing flange 171 is beneficial to improving the structural strength of the volute body 1, so that the use reliability of the fresh air volute is improved, and the first reinforcing flange 171 is beneficial to being abutted with the cover plate 2 to realize sealing.

In some exemplary embodiments, the end of the volute tongue 16 facing the cover plate 2 is provided with a second reinforcing flange 172, as shown in fig. 17. The second reinforcing flange 172 is beneficial to improving the structural strength of the volute body 1, so that the use reliability of the fresh air volute is improved.

In some exemplary embodiments, the second reinforcing bead 172 is provided with a reinforcing bead 1721, as shown in fig. 17. The arrangement of the reinforcing ribs 1721 is beneficial to further improving the structural strength of the volute body 1, so that the use reliability of the fresh air volute is further improved, and the second reinforcing flange 172 is beneficial to being abutted with the cover plate 2 to realize sealing.

Wherein, the second reinforcing flange 172 may be provided with a groove, the reinforcing ribs 1721 are disposed in the groove, and the number of the reinforcing ribs 1721 may be plural, and the reinforcing ribs 1721 are disposed along the length direction of the second reinforcing flange 172 at intervals, as shown in fig. 17, so as to be beneficial to effectively improving the structural strength of the volute body 1.

In some exemplary embodiments, the volute 16 includes an arc segment 161 and a diffuser 162 coupled to the arc segment 161, as shown in FIG. 16. The diffuser 162 may have a length of, but is not limited to, greater than 10mm. The arc section 161 surrounds a portion of the side wall plate to form a wind wheel mounting cavity. The diffuser 162 forms a diffuser flow path with a portion of the side rail. The volute tongue 16 may further include a flow guide section 164 that extends toward the fresh air inlet 121, as shown in fig. 17, to facilitate directing the dirty air toward the fresh air inlet 121, and to facilitate further improving the smoothness of the flow of the dirty air.

In some exemplary embodiments, the side gusset includes a first side panel 11, a second side panel 12, and a third side panel 13 connected in sequence, as shown in fig. 18. One (axial) end of the third side plate 13 is flush with the end plate 14 (as shown in fig. 15 and 18), and the other (axial) end is flush with the first side plate 11 and the second side plate 12 (as shown in fig. 16 and 17). In the axial direction of the scroll body 1, the heights of the first side plate 11 and the second side plate 12 are greater than the height of the third side plate 13, as shown in fig. 15 and 18. In other words, the first side plate 11 and the second side plate 12 are higher in height, and the third side plate 13 is lower in height. The third side plate 13 is mainly used for forming a volute air channel in cooperation with the volute tongue plate 16. The first side plate 11 and the second side plate 12 are mainly used for forming other areas such as a fresh air duct and an exhaust air duct in a matching mode.

As shown in fig. 18, the fresh air outlet 111 is provided on the first side plate 11, and the fresh air inlet 121 is provided on the second side plate 12, so that the first side plate 11 is located at the front end of the fresh air volute, and extends in the left-right direction so as to send fresh air forward. The second side plate 12 extends in the front-rear direction, on the left or right side of the first side plate 11, and may be of a relatively small length, but is sufficient to provide a fresh air inlet 121 and to interface with the air connection 7.

Thus, the end plate 14 may divide the air duct of the fresh air volute into two layers, one layer for the air flow on the upstream side of the air intake 141 and the other layer for the air flow on the downstream side of the air intake 141.

In some exemplary embodiments, the circumferential edge of the first side panel 11 is provided with a first sealing cuff 181, as shown in fig. 15. The face of the end plate 14 facing away from the cover plate 2 is provided with a second sealing bead 182, as shown in fig. 15. The first sealing bead 181 is arranged to abut the housing 3 of the fresh air module 100, as shown in fig. 14. The second sealing bead 182 is arranged to abut the housing 3 of the fresh air module 100, as shown in fig. 14.

The first sealing flange 181 and the second sealing flange 182 are convenient to be abutted against the shell 3 of the fresh air module 100 to form sealing, which is beneficial to preventing air leakage from generating air flow loss and preventing indoor cold air from flowing backwards into the fresh air volute to generate condensation.

In addition, the first sealing flange 181 can also play a role in reinforcing the flange, which is beneficial to improving the strength of the volute body 1, thereby improving the use reliability of the volute body 1.

As shown in fig. 15, the second sealing bead 182 may be flush with one end of the screen assembly 6, and the second sealing bead 182 may also extend onto the third side panel 13. The side panels of the housing 3 may be provided with flaps 332, as shown in fig. 14, with first and second sealing flaps 181 and 182 abutting against the flaps 332 and the bottom panel 32 of the housing 3 to form a seal.

In some exemplary embodiments, as shown in fig. 15, a plate surface of the first side plate 11 facing away from the air intake port 141 is provided with a first mounting portion 112, a second mounting portion 113, a third mounting portion 114, and a fourth mounting portion 115. The first mounting portion 112 may be, but is not limited to: screw holes, connecting columns and the like. The second mounting portion 113 may be, but is not limited to: screw holes, connecting columns and the like. The third mounting portion 114 may be, but is not limited to: screw holes, connecting columns and the like. The fourth mounting portion 115 may be, but is not limited to: screw holes, connecting columns and the like. The first mounting portion 112, the second mounting portion 113, the third mounting portion 114, and the fourth mounting portion 115 are provided at intervals.

As shown in fig. 14, the first mounting portion 112 is provided to mount the first motor 41. The first motor 41 is provided to be connected to the fresh air intake damper 51 to drive the fresh air intake damper 51 to open or close the fresh air inlet 121. The first motor 41 and the fresh air inlet damper 51 form a first opening and closing assembly for controlling the opening and closing of the fresh air inlet 121.

As shown in fig. 14, the second mounting portion 113 is provided to mount the second motor 42. The second motor 42 is provided in connection with the switching damper 52 to drive the switching damper 52 to open or close the switching port 142. The second motor 42 and the switching damper 52 form a second opening/closing unit for controlling the opening/closing of the switching port 142.

As shown in fig. 14, the third mounting portion 114 is provided to mount the third motor 43. The third motor 43 is provided to be connected to the exhaust outlet damper 53 to drive the exhaust outlet damper 53 to open or close the exhaust outlet 15. The third motor 43 and the exhaust air outlet valve 53 form a third opening and closing assembly for controlling the opening and closing of the exhaust outlet 15.

As shown in fig. 14, the fourth mounting portion 115 is provided to mount the fourth motor 44. The fourth motor 44 is provided to be connected to the fresh air outlet damper 54 to drive the fresh air outlet damper 54 to open or close the fresh air outlet 111. The fourth motor 44 and the fresh air outlet valve 54 form a fourth opening and closing assembly for controlling the opening and closing of the fresh air outlet 111.

The first motor 41, the second motor 42, the third motor 43, and the fourth motor 44 may be, but are not limited to, stepper motors. The fresh air inlet air valve 51, the switching air valve 52, the exhaust air outlet air valve 53 and the fresh air outlet air valve 54 can be, but are not limited to, valve plates.

Thus, the first motor 41, the second motor 42, the third motor 43 and the fourth motor 44 are installed in the same area and all installed on the first side plate 11, and the four motors in the area can be overhauled only by arranging the detachable air outlet baffle 34 opposite to the first side plate 11 without disassembling the whole fresh air module 100, so that the overhauling difficulty of the fresh air module 100 is reduced, and the overhauling cost of the overhauling module is reduced.

In some exemplary embodiments, as shown in fig. 15, the first side plate 11 is provided with a first shaft hole 1121, a second shaft hole 1131, a third shaft hole 1141, and a fourth shaft hole 1151. The axes of the third shaft hole 1141 and the fourth shaft hole 1151 extend in the axial direction of the fresh air volute, i.e., in the up-down direction. The first shaft hole 1121 and the second shaft hole 1131 penetrate the first side plate 11 in the thickness direction of the first side plate 11, that is, penetrate the first side plate 11 in the front-rear direction.

As shown in fig. 15, one end of the first shaft hole 1121 is located at a side of the first side plate 11 facing away from the air inlet 141 (i.e., located at a front side of the air inlet 141), and is configured to mount the fresh air inlet damper 51 to connect with a rotating shaft end of the first motor 41, so that the first motor 41 can be mounted at a front side of the first side plate 11. The second side plate 12 is provided with a first supporting portion (not shown in the drawings) which is arranged to support the fresh air intake damper 51 away from the end of the rotation shaft of the first motor 41, so that the first motor 41 can be ensured to be capable of driving the fresh air intake damper 51 located at the rear side of the first side plate 11 to rotate.

As shown in fig. 15, one end of the second shaft hole 1131 is located at a side of the first side plate 11 away from the air inlet 141 (i.e., located at a front side of the air inlet 141), and is configured to mount the switching damper 52 to be connected to the rotating shaft end of the second motor 42, so that the second motor 42 can be mounted at the front side of the first side plate 11. The volute tongue plate 16 is provided with a second support portion 163, and as shown in fig. 16, the second support portion 163 is provided to support the switching damper 52 away from the rotating shaft end portion of the second motor 42, so that the second motor 42 can be ensured to be capable of driving the switching damper 52 located on the rear side of the first side plate 11 to rotate. The second support 163 may be disposed on the upper end wall of the volute tongue 16, or may be disposed on a side wall (i.e., a molded line surface of the volute) of the volute tongue 16.

As shown in fig. 15, one end of the third shaft hole 1141 is located at a side of the first side plate 11 away from the air inlet 141 (i.e., located at a front side of the air inlet 141), and is configured to mount the air outlet valve 53 to connect with a rotating shaft end of the third motor 43, so that it is ensured that the third motor 43 may be mounted at a front side of the first side plate 11. The side of the first side plate 11 near the air inlet 141 is provided with a third supporting portion 1711, as shown in fig. 16, the third supporting portion 1711 is configured to support the air outlet valve 53 away from the end of the rotating shaft of the third motor 43, so as to ensure that the third motor 43 can drive the air outlet valve 53 located at the rear side of the first side plate 11 to rotate.

As shown in fig. 15, one end of the fourth shaft hole 1151 is located at a side of the first side plate 11 away from the air inlet 141 (i.e., located at a front side of the air inlet 141), and is configured to mount a fresh air outlet valve 54 to connect with an end of a rotating shaft of the fourth motor 44, so that the fourth motor 44 can be mounted on a front side of the first side plate 11. The side of the first side plate 11 near the air inlet 141 is provided with a fourth supporting portion 1712, as shown in fig. 16, the fourth supporting portion 1712 is configured to support the fresh air outlet valve 54 away from the end of the rotating shaft of the fourth motor 44, so as to ensure that the fourth motor 44 can drive the fresh air outlet valve 54 located at the rear side of the first side plate 11 to rotate.

The portion of the first sealing cuff 181 at the upper end may coincide with the portion of the first reinforcing cuff 171 at the upper end. The third supporting portion 1711 and the fourth supporting portion 1712 may be provided at portions where the first sealing cuff 181 overlaps the first reinforcing cuff 171.

Thus, the structural layout of the volute body 1 is reasonable, the fresh air inlet air valve 51, the switching air valve 52, the air exhaust air outlet air valve 53 and the fresh air outlet air valve 54 are convenient to install, the first motor 41, the second motor 42, the third motor 43 and the fourth motor 44 are also convenient to install, the fresh air inlet air valve 51 is convenient to be connected with the first motor 41, the switching air valve 52 is convenient to be connected with the second motor 42, the air exhaust air outlet air valve 53 is convenient to be connected with the third motor 43, and the fresh air valve is convenient to be connected with the fourth motor 44.

In some exemplary embodiments, a panel surface (i.e., a front panel surface) of the first side panel 11 facing away from the air inlet 141 is provided with a first routing button 116, as shown in fig. 15. The end (i.e., the lower end) of the second side plate 12 remote from the cover plate 2 is provided with a third sealing flange 183, as shown in fig. 15, and the third sealing flange 183 is arranged to abut against the housing 3 of the fresh air module 100. The third sealing flange 183 is provided with a second routing button 1831, as shown in fig. 16.

Thus, the wire bodies of the first motor 41, the second motor 42, the third motor 43 and the fourth motor 44 are convenient to be buckled and run along the wire running on the first side plate 11 and the second side plate 12, as shown in fig. 19, the wire layout is beneficial to optimizing, and interference with structures such as a wind wheel 92 is prevented.

And, the distance between the first routing button 116 and the cover plate 2 of the bottom plate 32 of the fresh air module 100 is smaller than the distance between the first routing button 116 and the top plate 31 of the fresh air module 100. The distance between the second routing button 1831 and the bottom plate 32 cover plate 2 of the fresh air module 100 is smaller than the distance between the second routing button 1831 and the top plate 31 of the fresh air module 100. In other words, the first routing button 116 is disposed at the lower portion of the first side plate 11, for example, may be disposed on the first sealing flange 181 at the lower end of the first side plate 11, and the second routing button 1831 is disposed at the lower end of the second side plate 12. Like this, after the air pipe machine secretly adorns in the furred ceiling, the position of first line body, second line body, third line body, fourth line body is comparatively down, and the maintainer of being convenient for overhauls. The dashed lines in fig. 19 illustrate the runs of the first, second, third, and fourth wires.

The first routing button 116 and the second routing button 1831 may be, but are not limited to: clasp, winding post, etc.

In some exemplary embodiments, the volute body 1 is provided with a fourth sealing cuff 184, as shown in fig. 18. The fourth sealing flange 184 is disposed along the circumference of the fresh air inlet 121 and is disposed against the fresh air inlet damper 51, so that the fresh air inlet damper 51 can close the fresh air inlet 121.

Thus, when the fresh air module 100 needs to work, the fresh air inlet valve 51 can be separated from the fourth sealing flange 184, and the fresh air inlet 121 is opened. When the fresh air module 100 does not need to work, the fresh air inlet air valve 51 abuts against the fourth sealing flange 184, the fresh air inlet 121 is closed and sealing is achieved, so that outdoor cold air is prevented from flowing back into the fresh air volute through the fresh air inlet 121 in severe cold weather, condensation and even icing are caused in the fresh air volute, and parts in the fresh air volute are affected.

In some exemplary embodiments, the volute body 1 is provided with a fifth sealing cuff 185, as shown in fig. 18. The fifth seal bead 185 is provided on the outer side of the fresh air inlet 121, and is provided along the circumferential direction of the fresh air inlet 121 so as to abut against the seal 74 interposed between the air duct joint 7 and the scroll body 1, as shown in fig. 12.

In this way, by means of the cooperation of the fifth sealing flange 185 and the sealing element 74, a sealing connection between the volute body 1 and the air duct joint 7 can be achieved, which is beneficial for preventing air leakage at the position of the volute body 1 and the air duct joint 7.

In some exemplary embodiments, the fresh air module 100 further comprises: air duct joint 7, as shown in fig. 12. The air pipe joint 7 is used for connecting a fresh air pipeline, the fresh air pipeline is communicated with the outdoor space and used for conveying outdoor fresh air into the fresh air module 100, and then the fresh air is output to the indoor space through the fresh air outlet 111 of the air outlet 341. The air pipe joint 7 is connected with the volute body 1 and is in butt joint communication with the fresh air inlet 121, a first skirt edge 71 and a second skirt edge 72 which are nested are arranged at one end, facing the volute body 1, of the air pipe joint 7, as shown in fig. 12, a sealing groove 73 is formed between the first skirt edge 71 and the second skirt edge 72, and sealing sponge (namely a sealing piece 74) is arranged in the sealing groove 73. The fifth sealing bead 185 of the volute body 1 is inserted between the first skirt 71 and the second skirt 72 and abuts against the sealing sponge. Thus being beneficial to improving the connection reliability of the air pipe joint 7 and the fresh air volute.

In some exemplary embodiments, the volute body 1 is provided with a sixth sealing cuff 186, as shown in fig. 17. The sixth sealing flange 186 is disposed along the circumferential direction of the exhaust outlet 15 and is disposed against the exhaust outlet valve 53 so that the exhaust outlet valve 53 can close the exhaust outlet 15.

Thus, when the air outlet 15 needs to work, the air outlet valve 53 can be separated from the sixth sealing flange 186, so as to open the air outlet 15. When the air exhaust outlet 15 does not need to work, the air exhaust air outlet valve 53 abuts against the sixth sealing flange 186, the outlet of the air exhaust inlet 3211 is closed, sealing is achieved, and the reliability of closing of the air exhaust outlet 15 is improved.

Wherein the sixth sealing bead 186 may comprise three beads as shown in fig. 17. The cover plate 2 can be further provided with a flanging, the flanging on the cover plate 2 and the three flanging enclose a quadrilateral structure, and the flanging can be abutted against the exhaust air outlet valve 53 to realize sealing.

In some exemplary embodiments, the volute body 1 is provided with a seventh sealing cuff 187, as shown in fig. 15. The seventh sealing flange 187 is disposed along the circumferential direction of the fresh air outlet 111, and is configured to be inserted into and in sealing engagement with an air outlet 341 (shown in fig. 3) on the air outlet baffle 34 of the fresh air module 100, as shown in fig. 7.

In this way, the seventh sealing flange 187 can be in sealing fit with the mouth wall of the air outlet 341 of the air outlet baffle 34, as shown in fig. 7, so as to prevent indoor cold air from entering the areas where the first motor 41, the second motor 42, the third motor 43 and the fourth motor 44 are located (i.e. the area between the first side plate 11 of the fresh air volute and the air outlet baffle 34, which may be referred to as the motor cavity 35) through the gaps between the seventh sealing flange 187 and the air outlet baffle 34, and cause the motor cavity 35 to generate condensation and even ice to adversely affect the first motor 41, the second motor 42, the third motor 43 and the fourth motor 44.

As shown in fig. 2 to 14, an embodiment of the present application further provides a fresh air module 100, including: a housing 3 and a fresh air volute as in any of the above embodiments. The fresh air volute is arranged in the shell 3 and is connected with the shell 3.

The fresh air module 100 provided in the embodiment of the present application includes the fresh air volute of any one of the above embodiments, so that the fresh air module has all the above advantages and is not described herein again.

In some exemplary embodiments, the housing 3 includes: top plate 31, bottom plate 32 and shell 33, as shown in fig. 3. The bottom plate 32 is disposed opposite to the top plate 31, and the housing 33 is disposed between the top plate 31 and the bottom plate 32 and connected to the top plate 31 and the bottom plate 32. The cover plate 2 of the fresh air volute is fixed to the top plate 31. The cover plate 2 may be fixed to the top plate 31 by the clamping action of the scroll body 1 and the top plate 31 as shown in fig. 7. Here, the top plate 31 and the bottom plate 32 are based on a state in which the air duct machine is concealed in the suspended ceiling, and the top plate 31 is above and the bottom plate 32 is below. But the up-down relationship of the bottom plate 32 and the top plate 31 may be changed during the assembly process before shipment of the ducted air conditioner. Such as: the bottom plate 32 can be arranged on the upper side, the top plate 31 can be a chassis, the wind wheel motor 93 can be fixed on the top plate 31, and after the internal structures such as the wind wheel 92, the wind wheel motor 93, the fresh air volute are installed, the bottom plate 32 is covered.

The base plate 32 includes a removable access panel 321, as shown in fig. 1 and 2. The base plate 32 is provided with access notches 322, as shown in fig. 3. The access panel 321 covers the access gap 322. The access panel 321 is disposed opposite at least a portion of the air inlet 141.

During installation tuber pipe machine, can lengthen the return air inlet on the furred ceiling bottom plate 32 for the access panel 321 of new trend module 100 is located the supply-air outlet region, makes the return air inlet of furred ceiling can form long and narrow structure like this, accords with present mainstream decoration style relatively. And, like this, through dismantling return air grid and access panel 321, can see wind wheel 92 and at least part of wind wheel motor 93, be convenient for overhaul wind wheel 92 and wind wheel motor 93 to be favorable to further reducing fresh air module 100's the maintenance degree of difficulty, be favorable to further reducing fresh air module 100's maintenance cost.

The top plate 31, the bottom plate 32 and the housing body 33 are divided from the relative positions, and the housing 3 is not limited to a specific one. Such as: as shown in fig. 2, the top plate 31 may be formed as a unitary structure with a left side plate (or a right side plate) of the case 33, and a portion of the bottom plate 32 may be formed as a unitary structure with a front side plate of the case 33. The right side plate (or left side plate) of the case body 33 and the rear side plate form an integral structure. The remainder of the base plate 32 may also be split into access panels 321 and other baffles. The width of the access panel 321 may be approximately equivalent to the width of the return air opening. The width of the portion of the bottom plate 32 that is integral with the front side plate may be approximately the same as the width of the motor cavity 35.

As shown in fig. 3, 5, 6, 11, 13, and 14, the fresh air module 100 further includes a first motor 41, a second motor 42, a third motor 43, a fourth motor 44, a fresh air inlet damper 51, a switching damper 52, an exhaust damper 53, and a fresh air outlet damper 54 provided in the scroll body 1.

The housing body 33 includes a front side plate located between the fresh air volute and the air outlet baffle 34. The front side plate is provided with a relief notch 331 as shown in fig. 3. The avoidance gap 331 is provided to avoid the seventh seal bead 187, the first motor 41, the second motor 42, the third motor 43, and the fourth motor 44 of the volute body 1. The fresh air module 100 further includes an air outlet baffle 34 removably connected to the housing 3. The air outlet baffle 34 is provided Cheng Zhedang with the first motor 41, the second motor 42, the third motor 43 and the fourth motor 44, so that the first motor 41, the second motor 42, the third motor 43 and the fourth motor 44 are prevented from being exposed, the aesthetic property of the fresh air module 100 is improved, and the first motor 41, the second motor 42, the third motor 43 and the fourth motor 44 are protected. The air outlet baffle 34 is provided with an air outlet 341 adapted to the seventh sealing flange 187 of the volute body 1, as shown in fig. 3, and the seventh sealing flange 187 is inserted into the air outlet 341 to prevent indoor cold air from entering the motor cavity 35 to generate condensation.

When any one of the first motor 41, the second motor 42, the third motor 43 and the fourth motor 44 needs to be overhauled, the air supply grille and the air outlet baffle 34 can be detached, and the first motor 41, the second motor 42, the third motor 43 and the fourth motor 44 can be seen, so that the first motor 41, the second motor 42, the third motor 43 and the fourth motor 44 can be overhauled through the air supply opening of the suspended ceiling without detaching the fresh air module 100 as a whole. Therefore, at least the first motor 41, the second motor 42, the third motor 43 and the fourth motor 44 of the fresh air module 100 are overhauled, and the fresh air module 100 is not required to be detached integrally, so that the overhauling difficulty of the fresh air module 100 is reduced, and the maintenance cost is reduced.

The avoidance notch 331 may be a complete notch, and may also include a plurality of notches that are set in a dispersed manner, and the shape and the size of the avoidance notch 331 are not limited, so long as the parts that need to be overhauled (to meet the overhauling requirements of the parts that need to be overhauled) and the fresh air outlet 111 (to ensure that the fresh air outlet 111 can be correspondingly communicated with the air outlet 341) are ensured.

In some exemplary embodiments, the access panel 321 is provided with an exhaust inlet 3211, as shown in fig. 2, the exhaust inlet 3211 being in communication with the air intake 141. Because the access panel 321 is located the return air inlet scope that the furred ceiling set up, be convenient for inhale indoor dirty wind through the same return air inlet of furred ceiling for the furred ceiling need not to additionally set up the opening that corresponds with inlet 3211 of airing exhaust, is favorable to reducing the installation degree of difficulty of tuber pipe machine, makes the setting mode of furred ceiling unanimous with conventional tuber pipe machine, only need suitably extension supply-air inlet and return air inlet's length can, and can not violate the mainstream trend of modern fitment.

In some exemplary embodiments, the fresh air module 100 further includes a fifth opening and closing assembly (not shown). The fifth opening and closing assembly is provided on the access plate 321 for controlling the opening and closing of the air exhaust inlet 3211. The fifth opening and closing assembly comprises a fifth motor and an exhaust air inlet valve. The fifth motor is connected to the exhaust inlet damper and configured to drive the exhaust inlet damper to open or close the exhaust inlet 3211. Like this, when the fifth motor needs to overhaul, can pull down return air grid and access panel 321, can overhaul the fifth motor, and need not to pull down whole new trend module 100, therefore be favorable to further reducing new trend module 100's the maintenance degree of difficulty, be favorable to further reducing new trend module 100's maintenance cost.

In some exemplary embodiments, the axis of rotation of fresh air intake damper 51 is located at one end of fresh air intake damper 51 and is capable of rotating (i.e., downward) in a direction toward floor 32 when fresh air intake damper 51 is switched from a closed position to an open position (as shown in FIG. 11). The rotation axis of the switching damper 52 is located at one end of the switching damper 52, and enables the switching damper 52 to rotate (i.e., rotate downward) in a direction approaching the bottom plate 32 when switching from the open position (as shown in fig. 11) to the closed position (as shown in fig. 13).

In this way, in the exhaust state, the fresh air intake damper 51 rotates downward to open the fresh air inlet 121, and the switching damper 52 rotates downward to close the switching port 142. In this way, the motor acting force, self gravity and pressure of exhaust air flow generate downward rotating acting forces on the fresh air inlet air valve 51 and the switching air valve 52, which is beneficial to avoiding shaking of the fresh air inlet air valve 51 caused by inconsistent acting forces of the three, and is beneficial to ensuring that the switching air valve 52 is more closed and more tight, thereby improving the reliability of closing the switching port 142.

In some exemplary embodiments, based on the fresh air intake damper 51 being in the open position, the angle β (shown in fig. 13) between the fresh air intake damper 51 and the first direction may be in the range of, but is not limited to, 30 ° to 90 °, such as 30 °, 45 °, 60 °, 75 °, 90 °, and the like. Based on the fresh air intake damper 51 being in the closed position, the angle between the fresh air intake damper 51 and the first direction may be 180 °. The first direction is a direction along the axial direction of the volute body 1 and directed from the top plate 31 to the bottom plate 32, that is: the direction of gravity.

The stability of the position of the fresh air inlet air valve 51 in the air exhaust state is improved, and the rotation range of the fresh air inlet air valve 51 is not too large, so that the pipe diameter of the air pipe joint 7 is not too large.

In some exemplary embodiments, based on the switching damper 52 being in the closed position, the angle α (shown in fig. 13) between the switching damper 52 and the first direction may be in the range of, but is not limited to, 30 ° to 90 °, such as 30 °,45 °, 60 °, 75 °,90 °, etc. Based on the switching damper 52 being in the open position, the angle between the switching damper 52 and the first direction may be greater than 90 ° and less than 180 °. The first direction is a direction along the axial direction of the volute body 1 and directed from the top plate 31 to the bottom plate 32, that is: the direction of gravity.

The stability of the position of the switching air valve 52 in the exhaust state is improved, and the rotation range of the switching air valve 52 is not too large, so that the miniaturization of the air suction volute is facilitated.

In some exemplary embodiments, the switching damper 52 is controlled in conjunction with the exhaust damper 53.

Since the fresh air inlet 121 communicates with the exhaust air outlet 15 and the switching port 142, the two are connected to each other. When the exhaust outlet 15 is opened, the switching port 142 must be closed, corresponding to the exhaust mode. When the switching port 142 is opened, the exhaust outlet 15 must be closed, corresponding to the fresh air mode. Therefore, the switching air valve 52 and the air exhausting air outlet valve 53 can be controlled in a linkage manner, so as to simplify the electric control program and electric control structure of the fresh air module 100.

The difference between the rotation angle range of the switching damper 52 and the rotation angle range of the exhaust outlet damper 53 may be in a range of, but not limited to, less than or equal to 20 °. In this way, the switching air valve 52 and the exhaust air outlet air valve 53 can be controlled to be opened and closed through the same terminal, which is beneficial to simplifying the electric control program of the fresh air module 100.

In some exemplary embodiments, the fresh air module 100 further comprises: screen assembly 6, as shown in fig. 2. The filter screen assembly 6 is erected between the base plate 32 and the volute body 1, and is positioned between the switching port 142 and the air inlet 141. The filter screen assembly 6 is matched with the volute body 1 and the housing 3, and the space between the bottom plate 32 and the volute body 1 is divided into a fresh air inlet area 61 and an exhaust air inlet area 62 which are respectively positioned at two sides of the filter screen assembly 6, as shown in fig. 8, 9 and 19.

Thus, the fresh air inlet area 61 and the exhaust air inlet area 62 can be separated by the filter screen assembly 6, which is favorable for preventing the dirty air from passing through the filter screen assembly 6 and also favorable for preventing the dirty air from overflowing to the fresh air inlet area 61 and for improving the airflow efficiency.

As shown in fig. 1, an embodiment of the present application further provides an air duct machine, including: a ducted air conditioner main body 200; and the fresh air module 100 according to any one of the above embodiments, is connected to the main body 200 of the air duct machine.

The air duct machine provided in the embodiment of the present application includes the fresh air module 100 in any of the above embodiments, so that the air duct machine has all the above advantages and is not described herein again.

In summary, the fresh air volute, the fresh air module 100 and the air duct machine provided by the embodiment of the application have the following characteristics:

The volute body 1 is compatible with the functions of opening, closing, switching and the like of a fresh air inlet air valve 51, a switching air valve 52, an exhaust air outlet air valve 53 and a fresh air outlet air valve 54; the other part of the volute (namely the cover plate 2) is replaced by a foam piece, the foam piece is fixed on the chassis (namely the top plate 31) of the shell 3, the wind wheel motor 93 is fixed on the chassis of the shell 3, and the motor gland 94 is used for fixing.

The other part of the spiral case (namely the cover plate 2) is replaced by foam, so that on one hand, the cost and the mould cost can be saved, on the other hand, the heat-insulating sponge of the chassis can be removed, and the heat-insulating function is realized synchronously. In addition, the integrated design of the spiral case avoids a sealing gap between the mutual matching, so that the cost is higher, and the noise sealing performance is better.

The fresh air module 100 mainly includes: the air conditioner comprises a shell 3 (comprising a front lower side plate which is approximately L-shaped, a right rear side plate which is approximately L-shaped, an upper left side plate which is approximately L-shaped (comprising a top plate 31), a bottom cover and an access panel 321), a fresh air volute (comprising a cover plate 2 and a volute body 1), an air guide ring 91, a filter screen assembly 6, an air outlet baffle 34 (which can be provided with a flanging to form an air outlet flange), an air pipe joint 7 and an electric control box 8. Wherein, the air-out flange is fixed on the front side plate (namely the front side plate of the front lower side plate), and the air pipe joint 7 is fixed on the right rear side plate. The foam cover plate 2 is fixed on the top plate 31, forms an air duct with the volute body 1 on one hand, and plays a role in heat preservation of the top plate 31 on the other hand.

The fresh air inlet area 61 and the exhaust air inlet area 62 are located at the lower side (air inlet side) of the fresh air volute and are isolated by the first sealing flange 181, the second sealing flange 182, the third sealing flange 183 and HEAPA (i.e. the filter screen assembly 6) of the volute body 1. The fresh air inlet area 61 is mainly formed by sealing and combining a first side plate 11, a second side plate 12, end plates 14, HEAPA nets, a bottom cover and a folded edge 332 on a left side plate of the volute body 1.

The fresh air outlet area and the exhaust area are located on the upper side (air outlet side) of the volute body 1. When the fresh air outlet valve 54 and the switching air valve 52 are opened, the air outlet 15 is closed when the air outlet valve 53 rotates to the flange (namely, the sixth sealing flange 186) of the volute tongue diffuser 162, namely, the fresh air outlet state is obtained; otherwise, the fresh air outlet valve 54 and the switching air valve 52 are closed, and the air outlet valve 53 is in an air outlet state when opened.

In the exhaust state, the switching air valve 52 is closed, the fresh air inlet air valve 51 is opened, and the angles between the switching air valve 52 and the fresh air inlet air valve 51 and the gravity direction are 30-90 degrees. Under the combined action of the motor closing force, the valve plate gravity and the wind pressure, the switching air valve 52 is closed more tightly, and the fresh air inlet air valve 51 is prevented from shaking due to different acting force directions. In addition, in order to ensure that the air exhaust is smoother, an air guide protrusion 21 is arranged on the foam cover plate 2, so that on one hand, air is guided, and in addition, the heat insulation effect on the volute of the part can be realized.

In the fresh air state, the air exhaust outlet 15 is closed by the air exhaust outlet valve 53, the switching air valve 52 is opened by the switching air valve 142, in addition, the rotation angle of the two air valves can be set within 20 degrees, when the two air valves work, the motor is controlled in a linkage way, and the opening and the closing of the two air valves can be controlled by the same terminal in an electric control way.

A fourth sealing bead 184 and a fifth sealing bead 185 are provided on the first side plate 11 of the volute body 1. The purpose of the fresh air intake damper 51 is to prevent cold air from flowing back into the fresh air module 100, causing condensation and even icing inside. The damper motor (i.e., the first motor 41) is fixed to the fresh air outlet side (i.e., the front plate surface of the first side plate 11). The fresh air intake damper 51 is sealed by abutting against the fourth sealing flange 184. The fifth sealing bead 185 is in abutment with the sponge of the air line connection 7. The fifth sealing bead 185 is disposed between the first skirt 71 and the second skirt 72 of the air duct joint 7 to form a seal.

The first side plate 11 of the volute body 1 is provided with a flanging (namely a first sealing flanging 181), so that on one hand, the strength of the volute is increased, and on the other hand, the four sides, the shell 33 of the shell 3, the bottom plate 32 and the top plate 31 of the bottom plate 32 form a sealing cavity (namely a motor cavity 35), so that the motor in the area is effectively prevented from being condensed. The rotation shaft directions of the fresh air outlet valve 54 and the exhaust air outlet valve 53 extend in the vertical direction, and the third motor 43 and the fourth motor 44 are fixed on a motor cover, which is fixed on the first side plate 11 of the volute body 1. A first routing button 116 is arranged on the surface of the volute parallel to the air outlet baffle 34 (i.e. the front plate surface of the first side plate 11). The side of the scroll (i.e., the second side plate 12) parallel to the width direction of the machine body is also provided with a flange (i.e., the third sealing flange 183) for sealing with the bottom plate 32, and a second wire button 1831 is provided on the flange for routing the motor wire and the like.

The seventh sealing flange 187 is arranged on the periphery of the fresh air outlet 111 and extends out to be matched with the air outlet 341 corresponding to the air outlet baffle 34 in an aligned manner, so that condensation is effectively prevented.

The upper end of the volute body 1 is provided with a full-circumference flanging (namely a first reinforcing flanging 171), so that the strength of the integrated volute body 1 is ensured. The volute tongue 16 is also provided with a flange (i.e., the second reinforcing flange 172), and the back of the flange may be provided with a reinforcing rib 1721.

At the exhaust outlet 15, three flanges (namely, sixth sealing flanges 186) are arranged on the volute body 1 and used for sealing between the volute body and the exhaust air outlet valve 53, and the sealing surface on the other side is arranged on the foam cover plate 2 so as to ensure that four sides of the exhaust air outlet valve 53 can be propped against the sealing flanges to ensure the reliability of closing the exhaust outlet 15.

The air outlet direction of the volute is provided with a large flanging surface (namely a first side plate 11). The first end of the fresh air outlet valve 54 (i.e. the end part of the rotating shaft connected with the fourth motor 44) is arranged on the first side plate 11, and the second end of the fresh air outlet valve 54 (i.e. the end part of the rotating shaft far away from the fourth motor 44) is arranged on the upper side flanging of the volute (i.e. the first reinforcing flanging at the upper end). The first shaft end (i.e., the end connected to the shaft of the second motor 42) of the switching damper 52 is disposed on the first side plate 11, and the second shaft end (i.e., the end far from the shaft of the second motor 42) is disposed on the end wall of the volute tongue plate 16 or the volute-shaped line surface of the volute tongue plate 16 opposite to the first side plate 11.

The end plate 14 of the volute body 1 is also provided with a buckle fixed with the air guide ring 91 and a flanging for strengthening and positioning, and the wiring buckle is used for communication power supply connection between the fresh air module 100 and the air pipe machine body 200.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 application. In this specification, schematic representations of the above terms are not necessarily directed 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. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (21)

1. A fresh air volute, comprising:

The volute comprises a volute body, a fan and a fan, wherein the volute body is provided with an air inlet, a fresh air outlet and an exhaust outlet, the volute body is of an integrated structure, and the central axis of the air inlet is arranged along the axial direction of the volute body; and

The cover plate is arranged on one axial side of the volute body, is opposite to the air inlet, covers the volute body and surrounds the air outlet channel with the volute body; the air duct comprises a fresh air duct and an exhaust air duct, the fresh air duct comprises a fresh air inlet, an air inlet and an air flow channel formed by communicating fresh air outlets, and the exhaust air duct comprises an air inlet and an air flow channel formed by communicating exhaust outlets.

2. The fresh air volute of claim 1, wherein the exhaust outlet is configured to communicate with the fresh air inlet, and wherein the exhaust duct further comprises an airflow channel formed by the exhaust outlet in communication with the fresh air inlet.

3. The fresh air volute of claim 2, wherein the volute body is further provided with a switching port capable of communicating with the fresh air inlet, the fresh air inlet being arranged to be capable of communicating with the air intake through the switching port; the fresh air inlet is arranged to be communicated with the switching port and the exhaust outlet alternatively so as to switch the air flow direction of the fresh air inlet.

4. A fresh air volute according to claim 3, wherein the switching port and the air inlet are provided on an end wall of the volute body, and the switching port is located radially outwardly of the air inlet;

The novel air inlet and the novel air outlet are arranged on the side wall of the volute body, the air exhaust outlet is arranged inside the volute body and between the novel air inlet and the novel air outlet, and the air exhaust outlet is arranged on the radial outer side of the air inlet.

5. The fresh air volute of claim 4, wherein the central axis of the fresh air inlet and the central axis of the exhaust outlet are staggered in the axial direction of the volute body, and a distance between the central axis of the fresh air inlet and the cover plate is greater than a distance between the central axis of the exhaust outlet and the cover plate;

The cover plate is provided with an air guide protrusion, and the air guide protrusion is arranged to guide air flow discharged by the air exhaust outlet to flow to the fresh air inlet.

6. The fresh air volute of claim 4, wherein the volute body comprises a side wall plate, a volute tongue plate disposed inside the side wall plate, and an end plate connected to the side wall plate and the volute tongue plate; one end of the volute tongue plate is connected with the side wall plate, and the other end of the volute tongue plate is arranged at intervals with the side wall plate;

The air inlet and the switching port are formed in the end plate, the fresh air inlet and the fresh air outlet are formed in the side wall plate, and the exhaust outlet is located between the side wall plate and the other end of the volute tongue plate.

7. The fresh air volute of claim 6, wherein the end of the volute body facing the cover plate is provided with a first reinforcing flange, and the first reinforcing flange is arranged along the circumferential direction of the side wall plate; and/or

The volute tongue plate is towards one end of apron is equipped with the second and strengthens the turn-ups, the second strengthens the turn-ups and is equipped with the strengthening rib.

8. The fresh air volute of claim 6, wherein the side wall panel includes a first side panel, a second side panel, and a third side panel that are sequentially connected; one end of the third side plate is flush with the end plate, and the other end of the third side plate is flush with the first side plate and the second side plate; the heights of the first side plate and the second side plate are larger than the height of the third side plate along the axial direction of the volute body;

the fresh air outlet is formed in the first side plate, and the fresh air inlet is formed in the second side plate;

the peripheral edge of the first side plate is provided with a first sealing flanging which is arranged to be abutted with the shell of the fresh air module;

The face that the end plate deviates from the apron is equipped with the sealed turn-ups of second, the sealed turn-ups of second set up into with the casing butt of new trend module.

9. The fresh air volute of claim 8, wherein a plate surface of the first side plate facing away from the air inlet is provided with a first mounting portion, a second mounting portion, a third mounting portion, and a fourth mounting portion;

the first installation part is used for installing a first motor, and the first motor is connected with a fresh air inlet air valve so as to drive the fresh air inlet air valve to open or close the fresh air inlet;

The second installation part is used for installing a second motor, and the second motor is connected with the switching air valve to drive the switching air valve to open or close the switching port;

The third installation part is used for installing a third motor, and the third motor is connected with an exhaust air outlet valve so as to drive the exhaust air outlet valve to open or close the exhaust outlet;

The fourth installation part is arranged to install a fourth motor, and the fourth motor is arranged to be connected with the fresh air outlet valve so as to drive the fresh air outlet valve to open or close the fresh air outlet.

10. The fresh air volute of claim 9, wherein the first side plate is provided with a first shaft hole, a second shaft hole, a third shaft hole, and a fourth shaft hole; the axes of the third shaft hole and the fourth shaft hole extend along the axial direction of the fresh air volute, and the first shaft hole and the second shaft hole penetrate through the first side plate along the thickness direction of the first side plate;

One end of the first shaft hole is positioned at one side of the first side plate, which is away from the air inlet, and is used for installing the fresh air inlet air valve to be connected with the end part of the rotating shaft of the first motor; the second side plate is provided with a first supporting part which is arranged to support the end part of the fresh air inlet valve, which is far away from the rotating shaft of the first motor;

One end of the second shaft hole is positioned at one side of the first side plate, which is away from the air inlet, and is used for installing the switching air valve to be connected with the end part of the rotating shaft of the second motor; the volute tongue plate is provided with a second supporting part, and the second supporting part is arranged to support the switching air valve away from the end part of the rotating shaft of the second motor;

one end of the third shaft hole is positioned at one side of the first side plate, which is away from the air inlet, and is used for installing the exhaust air outlet valve to be connected with the end part of the rotating shaft of the third motor;

one end of the fourth shaft hole is located at one side of the first side plate, which is away from the air inlet, and is arranged to mount the fresh air outlet valve to be connected with the end part of the rotating shaft of the fourth motor, one side of the first side plate, which is close to the air inlet, is provided with a fourth supporting part, and the fourth supporting part is arranged to support the fresh air outlet valve to be away from the end part of the rotating shaft of the fourth motor.

11. The fresh air volute of claim 8, wherein a first wire clip is provided on a face of the first side plate facing away from the air inlet; and/or

The one end that the second curb plate was kept away from the apron is equipped with the sealed turn-ups of third, the sealed turn-ups of third set up to the casing butt with fresh air module, the sealed turn-ups of third are equipped with the second and walk the line knot.

12. A fresh air volute according to claim 9 or claim 10, wherein the volute body is provided with a fourth sealing flange arranged circumferentially around the fresh air inlet and arranged to abut against a fresh air inlet damper to enable the fresh air inlet damper to close the fresh air inlet; and/or

The volute body is provided with a fifth sealing flanging, and the fifth sealing flanging is arranged on the outer side of the fresh air inlet, is arranged along the circumferential direction of the fresh air inlet and is in butt joint with a sealing piece sleeved between the air pipe joint and the volute body; and/or

The volute body is provided with a sixth sealing flanging, and the sixth sealing flanging is arranged along the circumferential direction of the exhaust outlet and is arranged to be abutted against the exhaust air outlet valve so that the exhaust air outlet valve can close the exhaust outlet; and/or

The volute body is provided with a seventh sealing flanging, and the seventh sealing flanging is arranged along the circumferential direction of the fresh air outlet and is in plug-in mounting and sealing fit with an air outlet on an air outlet baffle of the fresh air module.

13. The fresh air volute of any one of claims 1 to 11, wherein the cover plate is a foam piece.

14. A fresh air module, comprising:

A housing; and

A fresh air volute according to any one of claims 1 to 13, disposed within the housing and connected to the housing.

15. The fresh air module of claim 14, wherein the housing includes a top plate, a bottom plate disposed opposite the top plate, and a housing body between the top plate and the bottom plate, the cover plate of the fresh air volute being secured to the top plate;

The bottom plate comprises a detachable access plate, and the access plate is provided with an exhaust inlet;

The fresh air module further comprises an exhaust air inlet valve and a fifth motor, wherein the exhaust air inlet valve and the fifth motor are arranged on the access panel, the fifth motor is connected with the exhaust air inlet valve, and the fifth motor is arranged to drive the exhaust air inlet valve to open or close the exhaust inlet.

16. The fresh air module of claim 15, further comprising a first motor, a second motor, a third motor, a fourth motor, a fresh air intake damper, a switching damper, an exhaust damper, and a fresh air outlet damper disposed in the volute body;

The rotating shaft of the fresh air inlet air valve is positioned at one end of the fresh air inlet air valve, and can enable the fresh air inlet air valve to rotate towards the direction close to the bottom plate when the fresh air inlet air valve is switched from the closed position to the open position;

The rotating shaft of the switching air valve is positioned at one end of the switching air valve, and can enable the switching air valve to rotate towards the direction close to the bottom plate when the switching air valve is switched from the opening position to the closing position.

17. The fresh air module of claim 16, wherein the fresh air module comprises a fresh air module,

Based on the fresh air inlet air valve being in an open position, an angle between the fresh air inlet air valve and a first direction is in a range of 30-90 degrees, the first direction being along an axial direction of the volute body and directed by the top plate to the bottom plate; and/or

Based on the switching damper being in a closed position, an angle between the switching damper and a first direction, which is a direction along an axial direction of the volute body and directed from the top plate to the bottom plate, is in a range of 30 ° to 90 °.

18. The fresh air module of claim 16, wherein the switching damper is controlled in conjunction with the exhaust outlet damper.

19. The fresh air module of any one of claims 15 to 18, further comprising:

The filter screen component is vertically arranged between the bottom plate and the volute body and is positioned between the switching port of the volute body and the air inlet, and the filter screen component is arranged to be matched with the volute body and the shell, so that the space between the bottom plate and the volute body is divided into a fresh air inlet area and an exhaust air inlet area which are respectively positioned at two sides of the filter screen component.

20. The fresh air module of any one of claims 14 to 18, further comprising:

The air pipe joint is connected with the volute body and is in butt joint communication with the fresh air inlet, a first skirt edge and a second skirt edge which are nested are arranged at one end, facing the volute body, of the air pipe joint, and sealing sponge is arranged between the first skirt edge and the second skirt edge; the fifth sealing flanging of the volute body is inserted between the first skirt edge and the second skirt edge and is abutted with the sealing sponge; and/or

The air outlet baffle is detachably connected with the shell, the air outlet baffle is provided with an air outlet matched with a seventh sealing flanging of the volute body, and the seventh sealing flanging is inserted into the air outlet.

21. An air duct machine, comprising:

An air duct machine main body; and

The fresh air module of any one of claims 14 to 20, connected to the ducted machine body.