Air duct structure and air treatment equipment

Abstract

The utility model provides an air duct structure and air processing equipment, the air duct structure comprises an inner cylinder arranged in a main air duct, the inner cylinder and an air processing part arranged in the main air duct are opposite in the axial direction of the main air duct, and a flow channel is arranged between the outer peripheral surface of the inner cylinder and the inner wall of the main air duct; the inner space of the inner cylinder is configured to allow airflow penetrating through or flowing to the air treatment component to pass through, and the flow channel is configured to allow airflow bypassing the air treatment component to pass through. Based on the technical scheme of the utility model, two circulation paths are formed in the main air duct by utilizing the inner cylinder, and one of the circulation paths can bypass an air treatment component serving as a main source of wind resistance, so that the wind resistance of airflow flowing through the main air duct can be reduced on the whole, the load of the fan is reduced, and the noise during the operation of the fan is reduced; and the instantaneous air volume can be relatively increased by reducing the air resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning equipment, and particularly relates to an air duct structure and an air treatment device. Background Art

[0002] At present, there are various air treatment devices on the market, including air conditioners, dehumidifiers, humidifiers and other devices. However, there are basically noise problems when these air treatment devices are operating, and the problem is even more serious during the long-term use of the devices. Research has found that the main source of noise is the fan assembly. Further analysis shows that the reason for the relatively strong noise generated by the fan assembly is that the air resistance inside the device is large, resulting in an excessive load on the fan assembly.

[0003] Specifically, taking an air conditioner as an example, after air enters the air conditioner, it will flow through the evaporator for temperature adjustment. The evaporator has a large resistance to air flow. In addition, other filter components will also impose resistance on the air flow. Therefore, the overall air resistance inside the device will remain at a relatively high level, increasing the load on the fan assembly and generating noise. Summary of the Utility Model

[0004] In order to solve the noise problem of the air treatment device in the prior art due to large air resistance, the utility model provides an air duct structure and an air treatment device.

[0005] In a first aspect, an air duct structure provided by the utility model includes an inner cylinder disposed in a main air duct. The inner cylinder and an air treatment component disposed in the main air duct are opposite in the axial direction of the main air duct, and there is a flow channel between the outer peripheral surface of the inner cylinder and the inner wall of the main air duct.

[0006] Wherein, the internal space of the inner cylinder is configured to allow the air flow passing through or flowing towards the air treatment component to pass through, and the flow channel is configured to allow the air flow bypassing the air treatment component to pass through.

[0007] In an embodiment, the barrel of the inner cylinder is configured as a hollow structure, and the internal space of the inner cylinder and the flow channel can be communicated through the hollow structure.

[0008] In an embodiment, the inner cylinder includes a first end and a second end opposite in its axial direction. The first end is closer to the air treatment component than the second end.

[0009] Wherein, a flow port communicating with the flow channel is formed between the first end of the inner cylinder and the inner wall of the main air duct, and the second end of the inner cylinder is in sealed cooperation with the inner wall of the main air duct.

[0010] In one embodiment, the hollow structure is configured as a hollow grille, and the hollow grille includes a plurality of panes. The width direction of the pane is along the axial direction of the inner cylinder, and the length direction of the pane is along the circumferential direction of the inner cylinder.

[0011] In one embodiment, the width of the pane is not less than 10 mm, and the length of the pane is not less than 50 mm.

[0012] In one embodiment, a connecting portion protruding outward is formed on the outer peripheral surface of the inner cylinder, and the connecting portion is configured to be at least partially embedded in the assembly groove on the inner wall of the main air duct so that the inner cylinder is fixedly connected to the main air duct.

[0013] In one embodiment, a buffer rubber pad is wrapped around the outside of the connecting portion, and the buffer rubber pad is configured to be located between the outer surface of the connecting portion and the groove wall of the assembly groove when the connecting portion is embedded in the assembly groove.

[0014] In one embodiment, a plurality of limiting holes are formed on the connecting portion, and each of the limiting holes is respectively used for limiting cooperation with a pin provided in the assembly groove when the connecting portion is embedded in the assembly groove.

[0015] In one embodiment, a blower is arranged inside the inner cylinder, and the axis of the blower coincides with the axis of the inner cylinder.

[0016] In a second aspect, an air treatment device proposed by the present utility model includes the above-mentioned air duct structure, and thus has all the technical effects thereof.

[0017] The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the purpose of the present utility model can be achieved.

[0018] Compared with the prior art, the air duct structure and the air treatment device provided by the present utility model at least have the following beneficial effects:

[0019] With the air duct structure and the air treatment device of the present utility model, two flow paths are formed inside the main air duct by the inner cylinder. One of the paths can bypass the air treatment components which are the main sources of air resistance, so that the air resistance of the air flowing through the main air duct can be generally reduced, the load of the blower can be reduced, the noise during the operation of the blower can be reduced, and the instantaneous air volume can be relatively increased due to the reduction of the air resistance. Description of the Drawings

[0020] Hereinafter, the present utility model will be described in more detail based on embodiments and with reference to the drawings. Among them:

[0021] Figure 1Shows a schematic diagram of the overall structure of the air duct structure of the present utility model applied inside the device;

[0022] Figure 2 Shows Figure 1 An exploded view of the structure shown;

[0023] Figure 3 Shows an exploded view of the overall structure of the inner cylinder and the fan of the air duct structure of the present utility model;

[0024] Figure 4 Shows a schematic diagram of the assembly structure of the inner cylinder and the fan of the air duct structure of the present utility model;

[0025] Figure 5 Shows a three-dimensional view of the inner cylinder of the air duct structure of the present utility model from one perspective;

[0026] Figure 6 Shows a three-dimensional view of the inner cylinder of the air duct structure of the present utility model from another perspective;

[0027] Figure 7 Shows a cross-sectional view of the inner cylinder of the air duct structure of the present utility model in the front projection perspective;

[0028] Figure 8 Shows a schematic diagram of the assembly structure between the inner cylinder and the main air duct of the air duct structure of the present utility model.

[0029] In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to actual scale.

[0030] Reference numerals:

[0031] 1 - Main air duct, 11 - Assembly groove, 12 - Upper ventilation opening, 13 - Lower ventilation opening, 2 - Inner cylinder, 21 - Hollow grille, 22 - Connection part, 23 - Buffer rubber pad, 221 - Limit hole, 3 - Air treatment component, 4 - Flow channel, 5 - Fan, 6 - Front panel, 7 - Rear housing. Detailed implementation manners

[0032] The present utility model will be further described below in conjunction with the drawings.

[0033] Embodiment 1

[0034] An embodiment of the present utility model provides an air duct structure, which includes an inner cylinder 2 disposed in the main air duct 1. The inner cylinder and the air treatment component 3 disposed in the main air duct 1 are opposite in the axial direction of the main air duct 1, and there is a flow channel 4 between the outer peripheral surface of the inner cylinder 2 and the inner wall of the main air duct 1.

[0035] Among them, the internal space of the inner cylinder 2 is configured to allow the air flow passing through or flowing towards the air treatment component 3, and the flow channel 4 is configured to allow the air flow bypassing the air treatment component 3 to pass through.

[0036] Specifically, as shown in the attached drawings Figure 1 As shown, the air duct structure is arranged inside the corresponding equipment and is mainly used for the circulation of the air flow. The air duct structure includes the main air duct 1 and the inner cylinder 2 arranged inside the main air duct 1, and the axial direction of the inner cylinder 2 is the same as the axial direction of the main air duct 1. An air treatment component 3 is also arranged inside the main air duct 1, and the air treatment component 3 and the inner cylinder 2 are distributed along the axial direction of the main air duct 1; according to different equipment types, the air treatment component 3 can be the evaporator of an air conditioner or a dehumidifier, or the humidifying component of a humidifier. Generally speaking, the air treatment component 3 is the main source of air flow resistance.

[0037] In the present utility model, the outer diameter dimension of the inner cylinder 2 is configured to be slightly smaller than the inner diameter dimension of the main air duct 1. Therefore, a gap will be formed between the outer peripheral surface of the inner cylinder 2 and the inner wall of the main air duct 1. The gap can be used as the flow channel 4, and the inner part of the inner cylinder 2 originally has space. Therefore, for the air flow, there are two paths available for circulation at the inner cylinder 2. In this embodiment, the internal space of the inner cylinder 2 corresponds to the air treatment component 3, and the flow channel 4 between the inner cylinder 2 and the main air duct 1 corresponds to the gap between the air treatment component 3 and the main air duct 1. Therefore, for the air entering the main air duct 1, a part of the air can enter the inside of the inner cylinder 2 after passing through the air treatment component 3 or flow towards the air treatment component 3 through the inside of the inner cylinder 2. The flow of this part of the air is hindered by the air treatment component 3 and has a large air resistance; another part of the air can directly flow through the flow channel 4 formed between the outer peripheral surface of the inner cylinder 2 and the inner wall of the main air duct 1 without passing through the air treatment component 3, and the flow around the air treatment component 3 has a small air resistance.

[0038] Therefore, based on the structural design of this embodiment, two circulation paths are formed in the main air duct 1 by using the inner cylinder 2, and one of the paths can bypass the air treatment component 3 which is the main source of air resistance, so as to generally reduce the air resistance of the air flow passing through the main air duct 1, reduce the load of the fan 5 and lower the noise during the operation of the fan 5, and the reduction of the air resistance can also relatively increase the instantaneous air volume.

[0039] Preferably, the barrel of the inner cylinder 2 is configured as a hollow structure, and the internal space of the inner cylinder 2 and the flow channel 4 can be communicated through the hollow structure.

[0040] Specifically, the structure of the inner cylinder 2 is as shown in the attached drawings Figures 3 to 6As shown, the cylinder structure is a hollow structure, and the internal space of the inner cylinder 2 can communicate with the external flow channel 4 through the hollow structure, that is, the two flow paths at the inner cylinder 2 can converge through the hollow structure. The purpose of this design is that the air flowing through the flow channel 4 does not have to flow along the flow channel 4 all the time. As long as it enters the flow channel 4 and reaches the hollow structure of the cylinder body of the inner cylinder 2, it can enter the interior of the inner cylinder 2; or the air first enters the interior of the inner cylinder 2 to flow, and only a part of the air needs to enter the flow channel 4 after reaching the hollow structure of the cylinder body of the inner cylinder 2. This can avoid the problem that the air in the flow channel 4 may affect the gas fluidity by flowing along the flow channel 4 all the time, and make full use of the relatively large space inside the inner cylinder 2 for the air flow to circulate.

[0041] In addition, using the hollow structure to realize the convergence of the two flow paths at the inner cylinder 2 can further facilitate the installation of the fan 5, that is, the fan 5 can be directly installed inside the inner cylinder 2, so that the axis of the fan 5 coincides with the axis of the inner cylinder 2, as shown in the attached drawing Figure 3 and Figure 4 shown. In this way, the fan 5 inside the inner cylinder 2 can provide power for the air flow on both flow paths at the same time, ensuring that the gas on different flow paths has sufficient fluidity.

[0042] Furthermore, as shown in the attached drawing Figures 3 to 6 shown, the hollow structure is configured as a hollow grid 21, and the hollow grid 21 includes a plurality of window panes. The width direction of the window pane is along the axial direction of the inner cylinder 2, and the length direction of the window pane is along the circumferential direction of the inner cylinder 2.

[0043] Specifically, the hollow structure is configured as a hollow grid 21, which can maximize the use of the cylinder area of the inner cylinder 2 to form enough hollow window panes, thereby ensuring that the air flow has a large enough flow area, and at the same time, the weight reduction of the inner cylinder 2 itself can be achieved.

[0044] In addition, if the hollow grid 21 is too dense, it will also affect the fluidity of the air flow. Therefore, preferably, the width of the window pane is not less than 10 mm, and the length of the window pane is not less than 50 mm.

[0045] Furthermore, the inner cylinder 2 includes a first end and a second end opposite to each other in its axial direction. The first end is closer to the air treatment component 3 than the second end; wherein, a flow port connecting the flow channel 4 is formed between the first end of the inner cylinder 2 and the inner wall of the main air duct 1, and the second end of the inner cylinder 2 is in sealing cooperation with the inner wall of the main air duct 1.

[0046] Specifically, in the attached drawing Figure 1In the state shown, the air handling component 3 is located below the inner cylinder 2. Therefore, the first end of the inner cylinder 2 is its bottom end, and the second end of the inner cylinder 2 is its top end. In order to ensure that the air flow can flow through the flow channel 4 along the flow path bypassing the air handling component 3, a flow channel 4 port is provided at the first end of the inner cylinder 2 to connect the void with the void between the air handling component 3 and the inner wall of the main air duct 1. At the same time, the second end of the inner cylinder 2 is in sealed cooperation with the inner wall of the main air duct 1, closing the flow channel 4 at this end to prevent the air flow from passing through the inside of the inner cylinder 2 when flowing through the flow channel 4.

[0047] Embodiment 2

[0048] An embodiment of the present utility model provides an air duct structure, which includes an inner cylinder 2 disposed in the main air duct 1. The inner cylinder 2 and the air handling component 3 disposed in the main air duct 1 are opposite in the axial direction of the main air duct 1, and there is a flow channel 4 between the outer peripheral surface of the inner cylinder 2 and the inner wall of the main air duct 1.

[0049] Among them, the internal space of the inner cylinder 2 is configured to allow the air flow passing through or flowing towards the air handling component 3 to pass through, and the flow channel 4 is configured to allow the air flow bypassing the air handling component 3 to pass through.

[0050] Specifically, as shown in the attached drawings Figure 1 As shown, the air duct structure is disposed inside the corresponding equipment and is mainly used for the flow of the air flow. The air duct structure includes the main air duct 1 and the inner cylinder 2 disposed inside the main air duct 1, and the axial direction of the inner cylinder 2 is the same as the axial direction of the main air duct 1. An air handling component 3 is also disposed inside the main air duct 1, and the air handling component 3 and the inner cylinder 2 are distributed along the axial direction of the main air duct 1. According to different types of equipment, the air handling component 3 can be the evaporator of an air conditioning equipment or a dehumidifier, or the humidifying component of a humidifier. Generally speaking, the air handling component 3 is the main source of air flow resistance.

[0051] In the present utility model, the outer diameter dimension of the inner cylinder 2 is configured to be slightly smaller than the inner diameter dimension of the main air duct 1. Therefore, a flow channel 4 will be formed between the outer peripheral surface of the inner cylinder 2 and the inner wall of the main air duct 1, and the inner cylinder 2 originally also has a space inside. Therefore, for the air flow, there are two flow paths available at the inner cylinder 2. In this embodiment, the internal space of the inner cylinder 2 corresponds to the air handling component 3, and the flow channel 4 between the inner cylinder 2 and the main air duct 1 corresponds to the void between the air handling component 3 and the main air duct 1. Therefore, for the air entering the main air duct 1, a part of the air can enter the inside of the inner cylinder 2 after passing through the air handling component 3 or flow towards the air handling component 3 through the inside of the inner cylinder 2. The flow of this part of the air is hindered by the air handling component 3 and has a relatively large air resistance. Another part of the air can directly flow through the flow channel 4 formed between the outer peripheral surface of the inner cylinder 2 and the inner wall of the main air duct 1 without passing through the air handling component 3, and the flow bypassing the air handling component 3 has a relatively small air resistance.

[0052] Therefore, based on the structural design of this embodiment, two flow paths are formed in the main air duct 1 by the inner cylinder 2, and one of the paths can bypass the air treatment component 3 which is the main source of air resistance, so as to generally reduce the air resistance of the air flowing through the main air duct 1, reduce the load of the fan 5 and the noise during the operation of the fan 5, and the reduction of air resistance can also relatively increase the instantaneous air volume.

[0053] Preferably, the barrel of the inner cylinder 2 is constructed as a hollow structure, and the internal space of the inner cylinder 2 can communicate with the flow channel 4 through the hollow structure.

[0054] Specifically, the structure of the inner cylinder 2 is as shown in the attached drawing Figures 3 to 6 As shown, its barrel is constructed as a hollow structure, and the internal space of the inner cylinder 2 can communicate with the external flow channel 4 through the hollow structure, that is, the two flow paths at the inner cylinder 2 can converge through the hollow structure. The purpose of such design is that the air flowing through the flow channel 4 does not have to flow along the flow channel 4 all the time. As long as it enters the flow channel 4 and reaches the hollow structure of the barrel of the inner cylinder 2, it can enter the interior of the inner cylinder 2; or the air first enters the interior of the inner cylinder 2 for circulation, and after reaching the hollow structure of the barrel of the inner cylinder 2, a part of the air needs to enter the flow channel 4, thus avoiding the problem that the air in the flow channel 4 may affect the gas fluidity by flowing along the flow channel 4 all the time, and making full use of the relatively large internal volume of the inner cylinder 2 for air flow.

[0055] In addition, using the hollow structure to realize the convergence of the two flow paths at the inner cylinder 2 can further facilitate the installation of the fan 5, that is, the fan 5 can be directly installed inside the inner cylinder 2, and the axis of the fan 5 coincides with the axis of the inner cylinder 2, as shown in the attached drawing Figure 3 and Figure 4 As shown. In this way, the fan 5 inside the inner cylinder 2 can provide power for the air flow on both flow paths at the same time, ensuring that the gas on different flow paths has sufficient fluidity.

[0056] Furthermore, as shown in the attached drawing Figures 3 to 6 As shown, the hollow structure is constructed as a hollow grid 21, and the hollow grid 21 includes a plurality of window panes. The width direction of the window pane is along the axial direction of the inner cylinder 2, and the length direction of the window pane is along the circumferential direction of the inner cylinder 2.

[0057] Specifically, the hollow structure is constructed as a hollow grid 21, which can maximize the use of the barrel area of the inner cylinder 2 to form enough hollow window panes, thus ensuring that the air flow has a large enough flow area, and at the same time, the weight reduction of the inner cylinder 2 itself can also be realized.

[0058] In addition, if the hollow grid 21 is too dense, it will also affect the air flow. Therefore, preferably, the width of the window pane is not less than 10 mm, and the length of the window pane is not less than 50 mm.

[0059] Furthermore, the inner tube 2 includes a first end and a second end opposite to each other in the axial direction, and the first end is closer to the air treatment component 3 than the second end; wherein, a flow channel opening communicating with the flow channel 4 is constructed between the first end of the inner tube 2 and the inner wall of the main air duct 1, and the second end of the inner tube 2 is sealed with the inner wall of the main air duct 1.

[0060] Specifically, in the accompanying drawings Figure 1 In the illustrated state, the air treatment component 3 is positioned below the inner tube 2, with the first end of the inner tube 2 being its bottom end and the second end being its top end. To ensure that airflow can flow through the flow channel 4 in a path that bypasses the air treatment component 3, the first end of the inner tube 2 is provided with a flow channel 4 opening that connects the gap with the gap between the air treatment component 3 and the inner wall of the main air duct 1. Simultaneously, the second end of the inner tube 2 is sealed against the inner wall of the main air duct 1, sealing off the flow channel 4 at this end and preventing airflow from flowing through the flow channel 4 without passing through the interior of the inner tube 2.

[0061] Furthermore, an outwardly protruding connecting portion 22 is constructed on the outer circumference of the inner tube 2 , and the connecting portion 22 is configured to be at least partially embedded in the assembly groove 11 on the inner wall of the main air duct 1 to fix the inner tube 2 to the main air duct 1 .

[0062] Specifically, as shown in the accompanying drawings Figures 3 to 7 As shown, there is a protruding connecting portion 22 on the outer circumference of the inner tube 2. The connecting portion 22 is a sheet-like structure. The plane where it is located is parallel to the axis of the inner tube 2 and is used to realize the assembly between the inner tube 2 and the main air duct 1. The assembly structure between the inner tube 2 and the main air duct 1 is shown in the figure. Figure 8 As shown, a mounting groove 11 is formed on the inner wall of the main air duct 1 , and the connecting portion 22 is at least partially embedded in the mounting groove 11 .

[0063] Furthermore, the outside of the connecting portion 22 is wrapped with a buffer rubber pad 23 . The buffer rubber pad 23 is configured to be located between the outer surface of the connecting portion 22 and the groove wall of the assembly groove 11 when the connecting portion 22 is embedded in the assembly groove 11 .

[0064] Specifically, as shown in the accompanying drawings Figure 7 and Figure 8 As shown, the cushioning rubber pad is sleeved over the connecting portion 22, and its entirety envelops the connecting portion 22. A portion of the cushioning rubber pad can be embedded into the assembly groove 11 of the main air duct 1 along with the connecting portion 22. Thus, the cushioning rubber pad is located between the outer surface of the connecting portion 22 and the groove wall of the assembly groove 11, preventing the two from colliding with each other under the influence of vibrations generated during operation of the equipment, thereby preventing noise caused by collision and preventing collisions from aggravating the original vibrations of the equipment.

[0065] Furthermore, a plurality of limiting holes 221 are constructed on the connecting portion 22 , and each limiting hole 221 is used to limit and cooperate with a pin (not shown in the drawings) provided in the assembly groove 11 when the connecting portion 22 is inserted into the assembly groove 11 .

[0066] Specifically, as shown in the attached drawings Figures 4 to 6 As shown, a plurality of limiting holes 221 are formed on the connecting portion 22. The limiting holes 221 are mainly used to realize the limiting and fixing function between the connecting portion 22 and the assembly groove 11. The plurality of limiting holes 221 may include limiting holes 221 of different shapes, as shown in the attached drawings Figure 3 and Figure 6 shown square holes and round holes. The square holes are used to cooperate with square pins to achieve limiting, and the round holes can further cooperate with threaded fasteners to achieve threaded fixing on the basis of cooperating with round pins.

[0067] Embodiment 3

[0068] An embodiment of the present utility model provides an air treatment device, which includes an air duct structure. The air duct structure includes an inner cylinder 2 disposed in the main air duct 1. The inner cylinder 2 and the air treatment component 3 disposed in the main air duct 1 are opposite in the axial direction of the main air duct 1. There is a flow channel 4 between the outer peripheral surface of the inner cylinder 2 and the inner wall of the main air duct 1. Wherein, the internal space of the inner cylinder 2 is configured to allow the airflow passing through or flowing to the air treatment component 3 to pass through, and the flow channel 4 is configured to allow the airflow bypassing the air treatment component 3 to pass through.

[0069] Specifically, as shown in the attached drawings Figure 1 As shown, the air duct structure is disposed inside the corresponding device and is mainly used for the flow of air. The air duct structure includes a main air duct 1 and an inner cylinder 2 disposed inside the main air duct 1, and the axial direction of the inner cylinder 2 is the same as the axial direction of the main air duct 1. An air treatment component 3 is further disposed inside the main air duct 1, and the air treatment component 3 and the inner cylinder 2 are distributed along the axial direction of the main air duct 1; according to different types of devices, the air treatment component 3 may be an evaporator of an air conditioning device or a dehumidifier, or a humidifying component of a humidifier. Generally speaking, the air treatment component 3 is the main source of air flow resistance.

[0070] In the present utility model, the outer diameter dimension of the inner cylinder 2 is configured to be slightly smaller than the inner diameter dimension of the main air duct 1. Therefore, a flow channel 4 will be formed between the outer peripheral surface of the inner cylinder 2 and the inner wall of the main air duct 1. And the inner part of the inner cylinder 2 originally has space. Therefore, for the air flow, there are two available flow paths at the inner cylinder 2. In this embodiment, the inner space of the inner cylinder 2 corresponds to the air treatment component 3, and the flow channel 4 between the inner cylinder 2 and the main air duct 1 corresponds to the gap between the air treatment component 3 and the main air duct 1. Therefore, for the air entering the main air duct 1, a part of the air can enter the inner part of the inner cylinder 2 after passing through the air treatment component 3 or flow to the air treatment component 3 through the inner part of the inner cylinder 2. The flow of this part of the air is hindered by the air treatment component 3 and has a relatively large air resistance; another part of the air can directly flow through the flow channel 4 formed between the outer peripheral surface of the inner cylinder 2 and the inner wall of the main air duct 1 without passing through the air treatment component 3. Flowing around the air treatment component 3 has a relatively small air resistance.

[0071] Therefore, based on the structural design of this embodiment, two flow paths are formed in the main air duct 1 by using the inner cylinder 2. One of the paths can bypass the air treatment component 3 which is the main source of air resistance, so as to generally reduce the air resistance of the air flowing through the main air duct 1, reduce the load of the fan 5 and lower the noise during the operation of the fan 5. And the reduction of the air resistance can relatively increase the instantaneous air volume.

[0072] Preferably, the cylinder body of the inner cylinder 2 is configured as a hollow structure, and the inner space of the inner cylinder 2 and the flow channel 4 can be communicated through the hollow structure.

[0073] Specifically, the structure of the inner cylinder 2 is as shown in the attached drawing Figures 3 to 6 As shown, its cylinder body is configured as a hollow structure, and the inner space of the inner cylinder 2 and the external flow channel 4 can be communicated through the hollow structure, that is, the two flow paths at the inner cylinder 2 can converge through the hollow structure. The purpose of such a design is that the air flowing through the flow channel 4 does not need to flow along the flow channel 4 all the time. As long as it enters the flow channel 4 and reaches the hollow structure of the cylinder body of the inner cylinder 2, it can enter the inner part of the inner cylinder 2; or the air first enters the inner part of the inner cylinder 2 for flow, and after reaching the hollow structure of the cylinder body of the inner cylinder 2, a part of the air needs to enter the flow channel 4. Thus, it can avoid the problem that the air in the flow channel 4 always flows along the flow channel 4 and may affect the gas fluidity, and make full use of the relatively large space inside the inner cylinder 2 for the air flow.

[0074] In addition, using the hollow structure to realize the convergence of the two flow paths at the inner cylinder 2 inside the inner cylinder 2 can further facilitate the installation of the fan 5, that is, the fan 5 can be directly installed inside the inner cylinder 2 so that the axis of the fan 5 coincides with the axis of the inner cylinder 2, as shown in the attached drawing Figure 3 and Figure 4As shown, the fan 5 inside the inner cylinder 2 can provide power to the airflows in two flow paths simultaneously, ensuring that the gases in different flow paths have sufficient fluidity.

[0075] Furthermore, as shown in the attached drawings Figures 3 to 6 As shown, the hollow structure is configured as a hollow grille 21. The hollow grille 21 includes a plurality of window panes. The width direction of the window panes is along the axial direction of the inner cylinder 2, and the length direction of the window panes is along the circumferential direction of the inner cylinder 2.

[0076] Specifically, the hollow structure is configured as a hollow grille 21, which can maximize the use of the cylinder area of the inner cylinder 2 to form a sufficient number of hollow window panes, thereby ensuring that the airflows have a sufficient large flow area. At the same time, the weight reduction of the inner cylinder 2 itself can also be achieved.

[0077] In addition, if the hollow grille 21 is too dense, it will also affect the fluidity of the airflows. Therefore, preferably, the width of the window pane is not less than 10 mm, and the length of the window pane is not less than 50 mm.

[0078] Furthermore, the inner cylinder 2 includes a first end and a second end that are opposite to each other in its axial direction. The first end is closer to the air treatment component 3 than the second end; wherein, a flow port communicating with the flow channel 4 is formed between the first end of the inner cylinder 2 and the inner wall of the main air duct 1, and the second end of the inner cylinder 2 is in sealing cooperation with the inner wall of the main air duct 1.

[0079] Specifically, in the state shown in the attached drawings Figure 1 As shown, the air treatment component 3 is located below the inner cylinder 2. Therefore, the first end of the inner cylinder 2 is its bottom end, and the second end of the inner cylinder 2 is its top end. In order to ensure that the airflows can flow in the flow path bypassing the air treatment component 3 through the flow channel 4, a flow port 4 communicating with the gap between the air treatment component 3 and the inner wall of the main air duct 1 is provided at the first end of the inner cylinder 2; at the same time, the second end of the inner cylinder 2 is in sealing cooperation with the inner wall of the main air duct 1 to close the flow channel 4 at this end and prevent the airflows from flowing through the inner cylinder 2 without passing through the inside of the inner cylinder 2 when flowing through the flow channel 4.

[0080] Furthermore, a protruding connecting portion 22 is formed on the outer peripheral surface of the inner cylinder 2. The connecting portion 22 is configured to be able to be at least partially embedded in the assembly groove 11 on the inner wall of the main air duct 1, so that the inner cylinder 2 is fixedly connected to the main air duct 1.

[0081] Specifically, as shown in the attached drawings Figures 3 to 7 As shown, there is a protruding connecting portion 22 on the outer peripheral surface of the inner cylinder 2. The connecting portion 22 is integrally in a sheet-like structure, and the plane where it is located is parallel to the axis of the inner cylinder 2, which is used to realize the assembly between the inner cylinder 2 and the main air duct 1. The assembly structure between the inner cylinder 2 and the main air duct 1 is as shown in the attached drawings Figure 8 As shown, an assembly groove 11 is formed on the inner wall of the main air duct 1, and at least part of the connecting portion 22 is embedded in the assembly groove 11.

[0082] Further, a buffer rubber pad 23 is wrapped around the outside of the connecting portion 22, and the buffer rubber pad 23 is configured to be located between the outer surface of the connecting portion 22 and the groove wall of the assembly groove 11 when the connecting portion 22 is inserted into the assembly groove 11.

[0083] Specifically, as shown in the attached drawings Figure 7 and Figure 8 shown, the buffer rubber pad is sleeved outside the connecting portion 22, and the whole wraps the connecting portion 22. A part of the buffer rubber pad can be inserted into the assembly groove 11 of the main air duct 1 along with the connecting portion 22. Therefore, the buffer rubber pad is located between the outer surface of the connecting portion 22 and the groove wall of the assembly groove 11, avoiding collision between the two under the influence of vibration generated during the operation of the equipment, avoiding the noise caused by the collision, and avoiding the collision from aggravating the original vibration of the equipment.

[0084] Further, a plurality of limiting holes 221 are formed on the connecting portion 22, and each limiting hole 221 is respectively used for limiting cooperation with a pin (not marked in the attached drawings) arranged in the assembly groove 11 when the connecting portion 22 is inserted into the assembly groove 11.

[0085] Specifically, as shown in the attached drawings Figures 4 to 6 shown, a plurality of limiting holes 221 are formed on the connecting portion 22. The limiting holes 221 are mainly used to realize the limiting and fixing function between the connecting portion 22 and the assembly groove 11. Different shapes of limiting holes 221 can be included in the plurality of limiting holes 221, such as the square hole and the round hole shown in the attached drawings Figure 3 and Figure 6 shown. The square hole is used to cooperate with a square pin to realize limiting, and the round hole can further cooperate with a threaded fastener to realize threaded fixing on the basis of cooperating with a round pin.

[0086] In addition, the air handling equipment in this embodiment is the air conditioner shown in the attached drawings Figure 1 and Figure 2 shown. The outer shell of the air conditioner is formed by buckling the front panel 6 and the rear housing 7 together. Therefore, the front panel 6 and the rear housing 7 jointly enclose the main air duct 1, and the air handling component 3 in the main air duct 1 is an evaporator; in addition, as shown in the attached drawings Figure 8 shown, the assembly groove 11 of the main air duct 1 is arranged at the buckling part of the front panel 6 and the rear housing 7.

[0087] Meanwhile, the air conditioner in this embodiment has an up-and-down double-outlet structure. An upper air vent 12 is formed at the top of the main air duct 1, and a lower air vent 13 is formed at the bottom. As shown in the attached drawings Figure 1 shown, the upper air vent 12 and the lower air vent 13 can be used for air intake or air outlet according to different wind directions. Based on the up-and-down double-outlet structure, fans 5 are respectively arranged above and below the evaporator in the main air duct 1. Therefore, corresponding inner cylinders 2 can be respectively arranged, as shown in the attached drawings Figure 1 and Figure 2As shown, two flow paths are respectively constructed at the upper and lower fans 5.

[0088] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0089] Although the present invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed, as long as they do not deviate from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the different dependent claims and the features described herein can be combined in a manner different from that described in the original claims. It should also be understood that the features described in connection with a single embodiment can be used in other described embodiments.

Claims

1. An air duct structure, characterized in that, It includes an inner cylinder disposed in the main air duct, and the inner cylinder and the air treatment component disposed in the main air duct are opposite to each other in the axial direction of the main air duct, and there is a flow channel between the outer peripheral surface of the inner cylinder and the inner wall of the main air duct; Wherein, the internal space of the inner cylinder is configured to allow the air flow passing through or flowing towards the air treatment component to pass through, and the flow channel is configured to allow the air flow bypassing the air treatment component to pass through.

2. The air duct structure according to claim 1, characterized in that, The barrel of the inner cylinder is configured as a hollow structure, and the internal space of the inner cylinder and the flow channel can be communicated through the hollow structure.

3. The air duct structure according to claim 2, characterized in that, The inner cylinder includes a first end and a second end opposite to each other in its axial direction, and the first end is closer to the air treatment component than the second end; Wherein, a flow port communicating with the flow channel is formed between the first end of the inner cylinder and the inner wall of the main air duct, and the second end of the inner cylinder is in sealed cooperation with the inner wall of the main air duct.

4. The air duct structure according to claim 2, characterized in that, The hollow structure is configured as a hollow grille, and the hollow grille includes a plurality of window panes. The width direction of the window panes is along the axial direction of the inner cylinder, and the length direction of the window panes is along the circumferential direction of the inner cylinder.

5. The air duct structure according to claim 4, wherein, The width of the window pane is not less than 10 mm, and the length of the window pane is not less than 50 mm.

6. The air duct structure according to any one of claims 1 to 5, characterized in that, An outwardly protruding connecting portion is formed on the outer peripheral surface of the inner cylinder, and the connecting portion is configured to be at least partially embedded in the assembly groove on the inner wall of the main air duct so that the inner cylinder is fixedly connected to the main air duct.

7. The air duct structure according to claim 6, characterized in that, The outer surface of the connecting portion is wrapped with a buffer rubber pad, and the buffer rubber pad is configured to be located between the outer surface of the connecting portion and the groove wall of the assembly groove when the connecting portion is embedded in the assembly groove.

8. The air duct structure according to claim 6, characterized in that, A plurality of limiting holes are formed on the connecting portion, and each of the limiting holes is respectively used for limiting and cooperating with a plug disposed in the assembly groove when the connecting portion is embedded in the assembly groove.

9. The air duct structure according to any one of claims 1 to 5, characterized in that, A fan is disposed inside the inner cylinder, and the axis of the fan coincides with the axis of the inner cylinder.

10. An air treatment device, characterized in that, It includes the air duct structure according to any one of claims 1 to 9.

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