Air duct structure of clothes airing machine, air supply system and clothes airing machine

Abstract

The utility model discloses an air duct structure of a clothes airing machine, an air supply system and the clothes airing machine, and the air duct structure comprises an air duct shell which is internally provided with an air uniformizing cavity extending in the direction parallel to the length direction of an airing rod; the air guiding piece is arranged on the bottom wall of the air uniformizing cavity in the length direction of the air uniformizing cavity and used for guiding air flow in the air uniformizing cavity out downwards; the air uniformizing cavity is divided into a first air outlet area and a second air outlet area in the length direction of the air uniformizing cavity, the first air outlet area at least completely covers the leeward area, and the second air outlet area covers the windward area or partially covers the windward area; a first air outlet channel is correspondingly arranged in the first air outlet area, and a second air outlet channel is correspondingly arranged in the second air outlet area. Based on the diffusion and flow guide functions of the air duct structure in the scheme, in the actual application process, only one air duct structure needs to be correspondingly arranged above one airing rod, only one draught fan and one electric heater need to be arranged in one air duct structure, and the purpose that drying airflow is evenly conveyed to a wide airing space below the whole airing rod can be achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clothes drying machines, and in particular to a clothes drying machine air duct structure, an air supply system and a clothes drying machine. BACKGROUND

[0002] Clothes drying machines, as a common household appliance, play an increasingly important role in modern family life. With the improvement of people's living standards and the continuous improvement of the quality of life, the functions and designs of clothes drying machines are also constantly innovating. For example, some intelligent clothes drying machines have functions such as drying, sterilization, and mite removal, which can effectively remove bacteria and mites on clothes and protect the health of family members.

[0003] Existing clothes drying machines with drying functions can usually only achieve partial area drying. They usually use flood-fan to achieve local drying, and the drying area is small, and cannot cover the entire area of the clothes drying machine. Therefore, when drying clothes, the clothes need to be hung in a specific position. If you want to increase the drying area, you need to increase the number of fans or use long air ducts for air supply. The long air ducts achieve large-area air outlet through the long strip-shaped air outlets at the bottom side. However, if the number of fans is increased, the weight and component cost of the clothes drying machine will also increase. If long air ducts are used directly for air guiding, the air outlet direction of the long air ducts is single, and the drying area is limited, which can cause the problem of not being able to dry the clothes evenly. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the embodiments of the present utility model is to provide a clothes drying machine air duct structure, an air supply system and a clothes drying machine, which can solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above purpose, the following technical solutions are adopted in the present application:

[0006] On the one hand, a clothes drying machine air duct structure is provided, comprising:

[0007] A wind duct shell is formed inside a uniform wind cavity extending along the length direction parallel to the drying rod. One side of the wind duct shell is provided with an air supply port communicating with the uniform wind cavity. The uniform wind cavity includes a windward area and a leeward area, and the air supply port faces the windward area.

[0008] A wind guide piece is arranged on the bottom wall of the uniform wind cavity along the length direction of the uniform wind cavity, and is used to guide the airflow in the uniform wind cavity downward. The wind guide piece includes a first air outlet channel and a second air outlet channel. The first air inlet of the first air outlet channel is arranged upward, and the second air inlet of the second air outlet channel is arranged away from the side where the air supply port is located.

[0009] The uniform air cavity is divided into a first air outlet area and a second air outlet area along the length direction thereof, the first air outlet area at least completely covers the leeward area, and the second air outlet area covers the windward area or a partial area of the windward area; the first air outlet channel is correspondingly arranged in the first air outlet area, and the second air outlet channel is correspondingly arranged in the second air outlet area.

[0010] Optionally, the first air outlet area covers the leeward area and a partial area of the windward area close to the leeward area.

[0011] Optionally, a partial area of the air supply port close to the leeward area is a first air supply area, a width of the first air supply area accounts for 20% to 40% of a width of the air supply port, and the first air outlet area covers a partial area of the windward area corresponding to the first air supply area.

[0012] Optionally, an end of the windward area connected to the leeward area is a windward front end, and an end away from the leeward area is a windward tail end; the air supply port is located at the windward front end and is arranged to be inclined towards the windward area; and the windward area gradually shrinks from the windward front end to the windward tail end.

[0013] Optionally, a flow distribution plate is arranged at a position close to the windward front end in the windward area, and the flow distribution plate is located at a side of the air guide member close to the air supply port; the flow distribution plate extends to a position where the air supply port is located, so as to distribute the airflow supplied by the air supply port and guide the airflow to the leeward area and the front end of the windward area.

[0014] Optionally, the windward area is divided into a first shrinkage section and a second shrinkage section; the first shrinkage section is close to the windward front end, and the second shrinkage section is close to the windward tail end; a shrinkage amplitude of the first shrinkage section is greater than a shrinkage amplitude of the second shrinkage section; a side wall of the first shrinkage section connected to the air supply port is a first side wall plate; the flow distribution plate is arranged in a spaced manner with the first side wall plate, and an expansion angle between the flow distribution plate and the first side wall plate is 8° to 15°.

[0015] Optionally, a bottom edge of the flow distribution plate is connected to a bottom wall of the uniform air cavity, and a height of the flow distribution plate accounts for 60% to 100% of an overall height of the uniform air cavity.

[0016] Optionally, on the air guide member, a side of the second air outlet channel close to the air supply port is a windward plate, and a side away from the air supply port is a leeward plate; an upper edge of the windward plate and an upper edge of the leeward plate form the second air inlet; and a width of the second air inlet of the second air outlet channel gradually decreases in a direction extending from the windward front end to the windward tail end.

[0017] Optionally, the second air outlet area is divided into a first sub-area and a second sub-area along the length direction of the uniform air cavity, the first sub-area is located between the first air outlet area and the second sub-area; the second air outlet channel includes a first sub-channel and a second sub-channel, the first sub-area is provided with the first sub-channel, the second sub-area is provided with the second sub-channel, and the width of the second air inlet of the second sub-channel is smaller than the width of the second air inlet of the first sub-channel.

[0018] Optionally, the windward plate includes a planar plate segment and an arc-shaped plate segment, a bottom side edge of the planar plate segment is connected to the bottom wall of the uniform air cavity, and a top side edge is connected to the arc-shaped plate segment.

[0019] Optionally, in the second air outlet channel, the tangent line of the arc-shaped plate segment connected to one side of the planar plate segment and the median line of the second air inlet form an angle α, in the first sub-channel, 34°≤∠α≤38°, and in the second sub-channel, 40°≤∠α≤44°.

[0020] Optionally, the area of the division interface between the first sub-area and the second sub-area is S1, and the total area of the air outlet of all the second sub-channels is S2, wherein S1=(0.8-1.1)S2.

[0021] In another aspect, a supply air system is provided, including the air duct structure described above.

[0022] In yet another aspect, a clothes airing machine is provided, including the air duct structure described above.

[0023] The beneficial effects of the present application are: the air duct structure, the air supply system and the clothes airing machine are provided, the air duct shell of the air duct structure is provided with a uniform air chamber extending along the length direction parallel to the airing rod, and the drying airflow can be sent into the uniform air chamber for diffusion through the air supply port during work. According to the position and orientation of the air supply port, the uniform air chamber is divided into a windward area and a leeward area, after the airflow is sent into by the air supply port, the airflow mainly blows to the windward area, and a small part of the airflow diffuses to the leeward area after impacting on the inner wall of the air duct shell. The air guide piece of the scheme can disperse and guide the airflow in the uniform air chamber, and the first air outlet channel and the second air outlet channel with different structures are specifically arranged, and the first air outlet channel is arranged in the leeward area, and at least part of the second air outlet channel is arranged in the windward area; wherein the first air inlet of the first air outlet channel is directly arranged upward, and the airflow in the leeward area is easy to directly enter the first air inlet and be sent out downward through the first air outlet channel; and since the wind pressure in the windward area is large, and the structure is relatively long and narrow, the second air inlet of the second air outlet channel arranged in the windward area is arranged back to the air supply port, so that the airflow sent in by the air supply port must impact on the inner wall of the air duct shell after bypassing the air guide piece, and then flow into the second air inlet and be sent out downward through the second air outlet channel. Obviously, compared with the difficulty of entering the first air inlet, the difficulty of entering the second air inlet is greater, and according to the characteristics that the air volume of the windward area is greater than that of the leeward area, the airflow sent out by the first air outlet channel and the second air outlet channel is more uniform, that is, the drying airflow is uniformly sent along the length direction of the airing rod, and the purpose of uniformly drying the clothes on the airing rod is achieved. In addition, since the second air inlet of the second air outlet channel is arranged back to the air supply port, the airflow impacting on the structure corresponding to the second air outlet channel of the air guide piece will be further scattered and diffused, the airflow is more quickly and uniformly filled in the entire uniform air chamber, and the purpose of more uniform air outlet of the entire long and narrow uniform air chamber structure is achieved.

[0024] In summary, based on the diffusion and flow guiding functions of the air duct structure of the scheme, in actual application, only one air duct structure needs to be correspondingly arranged above one airing rod, and only one fan and one electric heater need to be arranged in one air duct structure, so that the purpose of uniformly conveying the drying airflow to the wide airing space below the entire airing rod is achieved. That is, on the basis of using a smaller number of fans, a large enough air outlet area and a more uniform air outlet effect are ensured, the drying area is expanded on the basis of using a lower cost, and a higher heat utilization rate, a higher drying speed and a higher drying uniformity are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0025] The present application will be further described in detail below according to the drawings and examples.

[0026] Figure 1 It is a top view schematic diagram of the air duct structure of the clothes airing machine described in the embodiments of the present application.

[0027] Figure 2 Fig. 2 is a sectional view of the air uniformizing cavity in the air supply device shown in Fig. 1; Figure 1 Fig. 3 is an enlarged view of the A region in Fig. 2;

[0028] Figure 3 Fig. 4 is a schematic view showing the division of the air uniformizing cavity into the windward region, the leeward region, the first air outlet region and the second air outlet region according to an embodiment of the present application;

[0029] Figure 4 Fig. 5 is a schematic view showing the division of the first air outlet region and the second air outlet region into the first subregion and the second subregion according to an embodiment of the present application;

[0030] Figure 5 Fig. 6 is a sectional view of the B-B section in Fig. 2; Figure 4

[0031] Figure 6 Fig. 7 is a sectional view of the C-C section in Fig. 2; Figure 4

[0032] Figure 7 Fig. 8 is a sectional view of the D-D section in Fig. 2; Figure 4

[0033] Figure 8 Fig. 9 is a schematic view showing the structure of the clothes airing machine according to an embodiment of the present application.

[0034] Fig. 1 is a schematic view showing the structure of the clothes airing machine according to an embodiment of the present application.

[0035] 1, air duct shell; 11, air uniformizing cavity; 12, air supply port; 13, leeward region; 14, windward region; 15, first air outlet region; 16, second air outlet region; 161, first subregion; 162, second subregion; 17, first side wall plate; 2, air guide member; 21, first air outlet channel; 211, first air inlet; 212, first air outlet; 22, second air outlet channel; 221, second air inlet; 222, second air outlet; 23, windward plate; 231, planar plate segment; 232, arc-shaped plate segment; 24, leeward plate; 3, flow dividing plate; 4, electric heater; 5, air blower; 6, main machine; 7, airing rack; 71, airing rod; 8, clothes hanger. DETAILED DESCRIPTION

[0036] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects reached more apparent, the technical solutions of the embodiments of the present application will be further described in detail below. Obviously, the described embodiments are only part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort fall within the scope of the present application.

[0037] ​​​In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0039] Clothes drying machine, as a common household appliance, plays an increasingly important role in modern family life. With the improvement of people's living standards and the continuous improvement of the quality of life, the function and design of clothes drying machine are also constantly innovating. For example, some intelligent clothes drying machines have the functions of drying, sterilization, and mite removal, which can effectively remove bacteria and mites on clothes and protect the health of family members.

[0040] The existing clothes drying machine with drying function can usually only realize partial area drying, which usually uses a stream fan for local drying. The drying area is small and cannot cover the entire area of the clothes drying machine, so when drying clothes, the clothes need to be hung in a specific position. If you want to increase the drying area, you need to increase the number of fans or use long air ducts for air supply. The long air ducts achieve large-area air outlet through the long strip-shaped air outlets at the bottom side. However, if the fan is increased, the increase of the fan will increase the weight and component cost of the clothes drying machine; if the long air duct is used directly for air guiding, due to the single air outlet direction of the long air duct, the limitation of the drying area is relatively large, which will cause the problem that the clothes cannot be fully and evenly dried.

[0041] In order to overcome the above technical problems, a clothes drying machine air duct structure is provided.

[0042] Specifically, refer to Figure 8The air duct structure of the embodiment is applied to a clothes airing machine with drying function. The clothes airing machine comprises a main machine 6 and an airing rack 7. The main machine 6 is installed on the ceiling. The airing rack 7 is suspended below the main machine 6 through a steel wire rope. The main machine 6 is provided with a winch for winding the steel wire rope, so as to realize the function of automatically driving the airing rack 7 to ascend and descend.

[0043] The main machine 6 is further provided with a drying mechanism. The air duct structure of the embodiment is applied to the drying mechanism. The drying mechanism further comprises a fan 5 and an electric heater 4. The fan 5 is started to drive the airflow to pass through the electric heater 4 and then be delivered into the air duct structure. The air duct structure guides the hot airflow downward to realize the function of drying the clothes hung on the airing rack 7 below.

[0044] The airing rack 7 generally comprises one or two parallel airing rods 71 arranged on a horizontal plane and extending along the X direction. The air duct structure of the embodiment extends along the X direction, so that the air duct structure can guide the hot airflow downward to dry all the clothes hung on the airing rods 71. In actual application, one air duct structure is generally arranged above each airing rod 71. When there are two airing rods 71 on the airing rack 7, two air duct structures are required. The airing rods 71 extend along the X direction, so the vertical direction of the airing rods 71 is the Y direction. In the process of airing clothes, clothes hangers 8 are generally used and hung vertically on the airing rods 71. Therefore, the length direction of the clothes hangers 8 extends along the Y direction.

[0045] For the convenience of description and understanding, the area below the airing rods 71 is defined as the airing space in the embodiment, with the length extension direction of the airing rods 71 as the length and the length extension direction of the clothes hangers 8 as the width. Under the guidance of the air duct structure of the embodiment, the airflow blown downward can cover the entire airing space, realizing the purpose of fully drying each piece of clothes.

[0046] In order to realize the above-mentioned purpose of uniformly covering the entire airing space with the airflow, reference is made to the following Figures 1-7 The air duct structure of the embodiment comprises:

[0047] An air duct shell 1 is internally formed with an airflow uniformizing cavity 11 extending along the length direction parallel to the airing rods 71. One side of the air duct shell 1 is provided with an air supply port 12 communicating with the airflow uniformizing cavity 11. The airflow uniformizing cavity 11 comprises a windward area 14 and a leeward area 13. The air supply port 12 faces the windward area 14.

[0048] A wind guide 2 is arranged on the bottom wall of the airflow uniformizing cavity 11 along the length direction of the airflow uniformizing cavity 11 and used for guiding the airflow in the airflow uniformizing cavity 11 downward. The wind guide 2 comprises a first air outlet channel 21 and a second air outlet channel 22. The first air inlet 211 of the first air outlet channel 21 is arranged upward. The second air inlet 221 of the second air outlet channel 22 is arranged on the side opposite to the side where the air supply port 12 is located.

[0049] The uniform air cavity 11 is divided into a first air outlet area 15 and a second air outlet area 16 along the length direction, the first air outlet area 15 at least completely covers the leeward area 13, and the second air outlet area 16 covers the windward area 14 or part of the windward area 14; the first air outlet channel 21 is correspondingly arranged in the first air outlet area 15, and the second air outlet channel 22 is correspondingly arranged in the second air outlet area 16.

[0050] It can be understood that, in the air duct structure of the embodiment of the application, in addition to the first air outlet 212 and the second air outlet 222 at the bottom of the first air outlet channel 21 and the second air outlet channel 22 for air outlet, the air duct shell 1 should be provided in other positions in a sealed state to avoid unnecessary air leakage, Figures 1-4 In the structure shown, the cover plate at the top of the air duct shell 1 is not shown for the convenience of showing the internal structure, and in actual application, the top side of the air duct shell 1 should be provided with a cover plate for closure.

[0051] As described above, it can be easily understood that the first air inlet 211 of the first air outlet channel 21 is arranged upward, and the difficulty of air flow entering the first air inlet 211 is obviously lower than that of entering the second air inlet 221 relative to the leeward arrangement of the second air outlet 222 of the second air outlet channel 22. The first air outlet area 15 and the second air outlet area 16 are divided to respectively arrange the first air outlet channel 21 and the second air outlet channel 22, and the principle is to set different air pressures of the first air outlet area 15 and the second air outlet area 16 to finally obtain the purpose of uniform air outlet. Specifically, the first air outlet area 15 has relatively low air pressure, so the first air outlet channel 21 which is easier to air outlet is arranged; and the second air outlet area 16 has relatively high air pressure, so the second air outlet channel 22 which is more difficult to air outlet is arranged.

[0052] Referring to Figure 3 The windward area 14 and the leeward area 13 are divided by an interface M, Figure 3The left side of the middle interface M is the leeward area 13, and the right side is the windward area 14. When the air flow is sent into the uniform air cavity 11 through the air supply port 12, the air flow will directly blow to the windward area 14, and only a small part of the air flow in the leeward area 13 is diffused from the windward area 14. Therefore, the air volume in the windward area 14 will be obviously greater than that in the leeward area 13. If the same air outlet channel is used, the air pressure in the windward area 14 will obviously be greater than that in the leeward area 13. In addition, the part of the windward area 14 close to the leeward area 13 has a larger space and is close to the leeward area 13. During work, part of the air flow needs to be dispersed to the leeward area 13, so the air pressure in the part of the windward area 14 close to the leeward area 13 will also be lower. Therefore, the division of the first air outlet area 15 and the second air outlet area 16 of the present scheme can be directly divided according to the division interface of the windward area 14 and the leeward area 13, that is, the first air outlet area 15 includes the entire leeward area 13, and the second air outlet area 16 includes the entire windward area 14. Alternatively, the division interface of the windward area 14 and the leeward area 13 can not be absolutely divided. According to the actual situation, a certain length of area on the side close to the leeward area 13 of the windward area 14 can be divided into the first air outlet area 15, and the first air outlet channel 21 that is easier to blow out air is arranged therein to obtain a more uniform air outlet effect.

[0053] In a specific application, the air duct shell 1 of the present embodiment is applied to a clothes drying machine. When the drying function is turned on, hot air flows into the air duct shell 1 to fill the entire air duct shell 1, and is blown downward from the first air outlet pipe and the second air outlet pipe arranged on the air guide piece 2. Since the air guide piece 2 is the same as the uniform air cavity 11 and extends along the length direction (i.e., the X direction) of the drying rod 71, and the first air outlet channel 21 and the second air outlet channel 22 are arranged alternately along the length direction of the air guide piece 2, the hot air flow can cover the entire drying space in the X direction under the action of the air guide piece 2.

[0054] In addition, with reference to Figure 3According to the position and orientation of the air outlet 12, the uniform air chamber 11 is divided into a windward area 14 and a leeward area 13. After the airflow is sent by the air outlet 12, it will mainly blow to the windward area 14, and a small part will diffuse to the leeward area 13 after impacting the inner wall of the air duct shell 1. The air guide piece 2 of the scheme can disperse and guide the airflow in the uniform air chamber 11. It specifically sets the first air outlet channel 21 and the second air outlet channel 22 with different structures, and the first air outlet channel 21 is arranged in the leeward area 13, and at least part of the second air outlet channel 22 is arranged in the windward area 14. The first air inlet 211 of the first air outlet channel 21 is directly arranged upward, and the airflow in the leeward area 13 is easy to directly enter the first air inlet 211 and be sent out downward through the first air outlet channel 21. Because the wind pressure in the windward area 14 is large, and the structure is relatively long, the second air inlet 221 of the second air outlet channel 22 arranged in the windward area 14 is arranged backward to the air outlet 12, so that the airflow sent by the air outlet 12 must bypass the air guide piece 2 and then impact the inner wall of the air duct shell 1, and then flow into the second air inlet 221 and be sent out downward through the second air outlet channel 22. Obviously, compared with the difficulty of entering the first air inlet 211, the difficulty of entering the second air inlet 221 is greater. Combined with the characteristics that the air volume of the windward area 14 is greater than that of the leeward area 13, the airflow sent out by the first air outlet channel 21 and the second air outlet channel 22 is more uniform, that is, the purpose of uniformly sending the drying airflow along the length direction of the airing rod 71 is achieved, and the purpose of uniformly drying the clothes on the airing rod 71 is achieved. Furthermore, because the second air inlet 221 of the second air outlet channel 22 is arranged backward to the air outlet 12, when the airflow impacts the structure of the air guide piece 2 corresponding to the second air outlet channel 22, it will be further scattered and diffused, so that the airflow can be filled in the entire uniform air chamber 11 more quickly and uniformly, and the purpose of making the structure of the entire long and narrow uniform air chamber 11 more uniform is achieved.

[0055] In summary, based on the diffusion and flow guiding functions of the air duct structure of the scheme, in actual application, only one air duct structure needs to be arranged above one airing rod 71, and only one air fan 5 and one electric heater 4 need to be arranged in one air duct structure, so that the purpose of uniformly delivering the drying airflow to the wide airing space below the entire airing rod 71 is achieved. That is, on the basis of using a small number of air fans 5, a large enough air outlet area and a uniform enough air outlet effect are ensured, the drying area is expanded on the basis of using a low cost, and a high heat utilization rate, a high drying speed and a high drying uniformity are ensured.

[0056] In an embodiment, the first air outlet area 15 covers the leeward area 13, and covers part of the area of the windward area 14 close to the leeward area 13.

[0057] Specifically, the leeward area 13 is directly subjected to less air flow from the air outlet 12, and its wind pressure and air volume are generally low. By covering the entire leeward area 13 in the first air outlet area 15, it can be ensured that the area obtains sufficient air flow, thereby improving the drying effect. At the same time, the end of the windward area 14 close to the leeward area 13 has relatively low wind pressure due to the influence of space structure and air flow diffusion. By including this part of the area in the first air outlet area 15, air flow can be supplemented through the first air outlet channel 21 which is easier to air, thereby avoiding the problem of insufficient drying in this area, that is, achieving more uniform air outlet effect.

[0058] In an embodiment, the part of the air outlet 12 close to the leeward area 13 is the first air outlet area, and the width of the first air outlet area accounts for 20% to 40% of the width of the air outlet 12; the first air outlet area covers the part of the windward area 14 corresponding to the first air outlet area.

[0059] Specifically, referring to Figure 4 , the width of the entire air outlet 12 is G, which is divided by the interface O, and the width of the first air outlet area is G1, then G1=(0.2-0.4)G. After the inventor's repeated analysis and experiments, under the condition of G1=(0.2-0.4)G, the wind pressure of the area in the windward area 14 corresponding to the first air outlet area is relatively low. By including this area in the first air outlet area 15 and providing it with a first air outlet channel, it can ensure that the area has a large enough air outlet volume, thereby obtaining a more uniform air outlet effect and optimizing the air flow distribution in the entire drying space.

[0060] In an embodiment, the end of the windward area 14 connected to the leeward area 13 is the windward front end, and the end away from the leeward area 13 is the windward end, and the air outlet 12 is located at the windward front end and is inclined towards the windward area 14, and the windward area 14 gradually narrows from the windward front end to the windward end.

[0061] By setting the windward area 14 to gradually narrow from the windward front end to the windward end, and setting the air outlet 12 at the windward front end and inclined towards the windward area 14, it is beneficial to smoothly guide the air flow from the windward front end to the windward end, which enables the air flow to quickly and uniformly fill the entire long and narrow windward area, avoiding the problem of uneven air flow in the windward area, which leads to uneven air outlet of the second air outlet channel 22 at different positions, so this structure ultimately achieves the effect of optimizing the uniformity of air outlet in the X direction.

[0062] The air outlet 12 is inclinedly arranged, and specifically, the inclination is towards the wind end of the wind area 14. In this structure, although the airflow can be evenly filled in the entire long wind area 14, the airflow distributed in the leeward area 13 and the area close to the wind front end of the wind area 14 will be guided to the wind end by the force, and thus the wind volume of the wind front end is insufficient and the wind pressure is low.

[0063] To overcome the above problems, in an embodiment, referring to Figures 1-2 , the position close to the wind front end of the wind area 14 is provided with a flow distribution plate 3, and the flow distribution plate 3 is located on the side of the air guide member 2 close to the air outlet 12. The flow distribution plate 3 extends to the position of the air outlet 12 to distribute the airflow sent by the air outlet 12 and guide the airflow to the leeward area 13 and the front end of the wind area 14.

[0064] The arrangement of the flow distribution plate 3 effectively solves the problem of insufficient airflow distribution in the leeward area 13 and the area close to the wind front end of the wind area 14 when the air outlet 12 is inclinedly arranged towards the wind end of the wind area 14. Specifically, referring to Figure 2 , the flow distribution plate 3 extends to the position of the air outlet 12 to distribute the airflow sent by the air outlet 12 and guide the airflow to the leeward area 13 and the front end of the wind area 14.

[0065] In the left area, the wind pressure close to the flow distribution plate 3 is relatively large, so the second air outlet channel 22 is arranged close to the flow distribution plate 3.

[0066] In an embodiment, the wind area 14 is divided into a first contraction section and a second contraction section. The first contraction section is close to the wind front end, and the second contraction section is close to the wind end. The contraction amplitude of the first contraction section is greater than that of the second contraction section. The side wall connected to the air outlet 12 in the first contraction section is a first side wall plate 17. The flow distribution plate 3 is arranged in a spaced manner with the first side wall plate 17, and the pressure expansion angle between the flow distribution plate 3 and the first side wall plate 17 is 8°-15°.

[0067] That is, Figure 2 The range of ∠θ is 8°-15°.

[0068] In this embodiment, the division of the first and second contraction sections and the different contraction amplitudes therebetween help to more accurately control the distribution of the airflow into the wind area 14. Specifically, the large-amplitude contraction of the first contraction section can accelerate the airflow and direct it to be more evenly distributed to the end of the wind area 14. The diffuser angle θ formed between the splitter plate 3 and the first side wall plate 17 is 8°-15°, which can ensure that the airflow can gradually decelerate and diffuse when passing through the splitter plate 3, so that the airflow in the wind area 14 is more uniform, and a more uniform air outlet effect is obtained.

[0069] In an embodiment, the bottom edge of the splitter plate 3 is connected to the bottom wall of the uniform air chamber 11, and the height of the splitter plate 3 accounts for 60%-100% of the overall height of the uniform air chamber 11.

[0070] The height of the splitter plate 3 accounts for a large proportion (more than 60%) of the overall height of the uniform air chamber 11, which means that it can more effectively guide the airflow entering the uniform air chamber 11. This design can ensure that the airflow flows more smoothly and orderly to the wind area 14 and the leeward area 13 under the action of the splitter plate 3, reducing the turbulence and loss of the airflow and improving the uniformity of the left and right distribution.

[0071] In an embodiment, on the air guide piece 2, the side of the second air outlet channel 22 close to the air outlet 12 is a windward plate 23, and the side away from the air outlet 12 is a leeward plate 24. The upper edge of the windward plate 23 and the upper edge of the leeward plate 24 form the second air inlet 221. From the windward front end to the windward end, the width of the second air inlet 221 of the second air outlet channel 22 gradually decreases.

[0072] Specifically, in the second air outlet area 16, the closer to the windward end, the smaller the space, and the greater the wind pressure. Therefore, the second air inlet 221 at the windward end is set to be smaller than the second air inlet 221 at the windward front end. A larger second air inlet 221 in the area with small front-end wind pressure is more conducive to air outlet, and a smaller second air inlet 221 in the area with large end wind pressure can increase the difficulty of air outlet, ultimately achieving the effect of uniform air outlet from the front to the end.

[0073] In an embodiment, referring to Figure 4 , the second air outlet area 16 is divided into a first sub-area 161 and a second sub-area 162 along the length direction of the uniform air chamber 11, and the first sub-area 161 is located between the first air outlet area 15 and the second sub-area 162. The second air outlet channel 22 includes a first sub-channel and a second sub-channel, the first sub-area 161 is provided with the first sub-channel, the second sub-area 162 is provided with the second sub-channel, and the width of the second air inlet 221 of the second sub-channel is smaller than the width of the second air inlet 221 of the first sub-channel.

[0074] Similarly, in this way, according to the principle of pressure difference, the second air inlet 221 arranged in the first sub-area 161 in front is larger, and the second air inlet 221 arranged in the second sub-area 162 in back is smaller, so as to achieve the purpose of uniform air outlet.

[0075] In an embodiment, the windward plate 23 comprises a planar plate segment 231 and an arc-shaped plate segment 232, the bottom side of the planar plate segment 231 is connected to the bottom wall of the uniform air cavity 11, and the top side is connected to the arc-shaped plate segment 232.

[0076] Specifically, on the outer wall of the air guide 2, the arc surface of the arc-shaped plate segment 232 is designed to make the airflow flow more smoothly when it contacts the outer arc surface, reducing the wind resistance caused by the right angle or acute angle turning, which helps to improve the circulation efficiency of the hot air, so that more hot air can pass through the windward plate faster. On the inner wall of the air guide 2, the airflow enters the second air outlet passage 22 through the second air inlet 221 and first encounters the arc-shaped plate segment 232. The arc-shaped inner wall surface of the arc-shaped plate segment 232 can effectively guide and drain the horizontally or obliquely entering airflow. This design ensures that the airflow can quickly adjust its direction after entering the second air outlet passage 22 and flow downward along the inner wall surface of the arc-shaped plate segment 232. Subsequently, the airflow will pass through the area between the planar plate segment 231 and the leeward plate 24, and be further arranged and uniformly distributed, and then be smoothly blown out downward.

[0077] The design of the arc-shaped plate segment 232 in this embodiment not only helps to guide the airflow direction, but also makes the airflow more evenly dispersed during the flow process through its arc surface. After the airflow passes through the arc-shaped plate segment 232, it is more evenly distributed in the area between the planar plate segment 231 and the leeward plate 24, thereby improving the uniformity of the hot air blown out from the second air outlet 222, and also avoiding the loss of airflow velocity, ensuring sufficient air outlet speed. In addition, the design of the arc-shaped plate segment 232 also helps to reduce the noise and vibration caused by collision or friction of the airflow during the flow process, which helps to improve the quietness and stability of the clothes drying machine during use.

[0078] In an embodiment, in combination with Figure 6 and Figure 7 In the second air outlet passage 22, the included angle between the tangent line of one side of the arc-shaped plate segment 232 connected to the planar plate segment 231 and the median line of the second air inlet 221 is α, and in the first sub-passage, 34°≤∠α≤38°; in the second sub-passage, 40°≤∠α≤44°.

[0079] It can be understood that the plane plate segment 231 is fixed, the tangent line connecting the arc-shaped plate segment 232 on one side of the plane plate segment 231 is fixed, the second air inlet 221 is larger, the median line K of the second air inlet 221 is more parallel to the tangent line, in other words, the larger the ∠α, the smaller the width of the second air inlet 221, and vice versa, the smaller the ∠α, the larger the width of the second air inlet 221.

[0080] Through the inventor's many experiments, it is verified that in the first sub-channel, 34°≤∠α≤38°; in the second sub-channel, 40°≤∠α≤44°, and finally a relatively uniform air outlet effect can be obtained to achieve the purpose of uniform drying.

[0081] Further preferably, in the first sub-channel, ∠α=36°; in the second sub-channel, ∠α=42°

[0082] In an embodiment, the area of the division interface between the first sub-region 161 and the second sub-region 162 is S1, and the total area of the air outlets of all the second sub-channels is S2, wherein S1=(0.8-1.1)S2.

[0083] That is, the areas of the second air outlets 222 of all the second sub-channels are integrated as S2, and S1 is the area of the division interface between the first sub-region 161 and the second sub-region 162 in the uniform air chamber 11. Through the inventor's many experiments, it is verified that when S1=(0.8-1.1)S2, the air outlets of the first sub-region 161 and the second sub-region 162 can be basically kept relatively uniform, and thus a more uniform air outlet effect can be obtained overall.

[0084] On the other hand, a kind of air supply system is provided, comprising the air duct structure described above.

[0085] Specifically, the air supply system of the embodiment further comprises a fan 5, and an air outlet interface of the fan 5 is connected to the air supply port 12 of the uniform air chamber 11.

[0086] In the working process of the air supply system described in the embodiment, air is conveyed into the uniform air chamber 11 under the driving of the fan 5, and is blown out uniformly downward after being diffused by the air guide member 2, so as to achieve the purpose of large-area air outlet drying. On the basis of using a smaller number of fans 5, a large enough air outlet area and a uniform enough air outlet effect can be ensured, so as to expand the drying area at a lower cost, while ensuring a higher heat utilization rate, improving the drying speed and drying uniformity.

[0087] Specifically, an electric heater 4 is arranged at the air supply port 12, and the air blown out by the fan 5 can be heated by the electric heater 4.

[0088] Preferably, the heating device in the embodiments of the present application is a PTC electric heater 4. The PTC electric heater 4 is a new type of heating element. The working principle of the PTC electric heater 4 is based on the positive temperature coefficient characteristic of PTC ceramic material. When an electric current passes through the PTC ceramic, its resistance will increase with the increase of temperature. When the temperature reaches a certain value (Curie temperature), the resistance will increase sharply, and the current will decrease, so that the power of the PTC element is automatically adjusted to maintain a constant temperature. The PTC electric heater 4 has an overheat protection function. When the temperature is too high, the resistance will automatically increase to limit the current and prevent overheating.

[0089] Further, the air supply system in the embodiments of the present application further comprises a plasma generator, which is arranged in the uniform air cavity 11. The plasma generator is a device capable of generating plasma. Plasma is called the "fourth state of matter" and is a highly ionized gas containing a large number of free electrons, ions and other charged particles. Plasma has strong chemical activity and can react with many substances to produce oxidation, reduction, decomposition and other effects. The high-energy electrons and active oxygen ions in the plasma can effectively kill harmful microorganisms such as bacteria, viruses and mites on the clothes.

[0090] In another aspect, a clothes drying machine is provided, which comprises the air duct structure described above.

[0091] By arranging two air duct structures in the clothes drying machine, the output of drying air can be achieved around the clothes drying machine, and the full-area drying function of the clothes drying machine can be achieved by using only two fans 5. The reduction of the number of fans 5 can reduce the overall weight and the cost of parts of the clothes drying machine. By arranging the two air duct structures in a central symmetry, two air duct structures with the same structure can be used, thereby reducing the types of parts and the installation difficulty, and improving the universality of the air duct structure.

[0092] In the description herein, it should be understood that the terms "upper", "lower", "left", "right", and the like orientation or position relationship are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.

[0093] In the description of the present specification, the description referring to the terms "an embodiment", "an example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0094] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

[0095] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for the purpose of explaining the principles of the present application, and cannot be interpreted in any way as a limitation on the scope of protection of the present application. Based on the explanation here, those skilled in the art do not need to exert creative labor to think of other specific embodiments of the present application, and these ways will fall within the scope of protection of the present application.

Claims

1. An air duct structure of a clothes drying machine, characterized by comprising: The application relates to a wind channel shell, which is internally formed with a uniform air chamber extending along the length direction of a drying rod, and is provided with a blowing opening communicating with the uniform air chamber on one side; the uniform air chamber comprises a windward area and a leeward area, and the blowing opening is directed to the windward area; a wind guide is arranged on the bottom wall of the uniform air chamber along the length direction of the uniform air chamber and is used for guiding the airflow in the uniform air chamber downward; the wind guide comprises a first air outlet channel and a second air outlet channel, the first air inlet of the first air outlet channel is arranged upward, and the second air inlet of the second air outlet channel is arranged on the side opposite to the side where the blowing opening is located; wherein the uniform air chamber is divided into a first air outlet area and a second air outlet area along the length direction, the first air outlet area at least completely covers the leeward area, and the second air outlet area covers the windward area or covers part of the windward area; the first air outlet channel is correspondingly arranged in the first air outlet area, and the second air outlet channel is correspondingly arranged in the second air outlet area. The first air outlet area covers the leeward area and covers part of the windward area close to the leeward area. The part of the blowing opening close to the leeward area is a first blowing area, the width of the first blowing area accounts for 20%-40% of the width of the blowing opening, and the first air outlet area covers part of the windward area corresponding to the first blowing area. The end of the windward area connecting the leeward area is a windward front end, and the end far away from the leeward area is a windward tail end; the blowing opening is located at the windward front end and is arranged in an inclined manner towards the windward area; in the windward area, the windward area gradually shrinks from the windward front end to the windward tail end.

2. The air duct structure of a clothes drying machine according to claim 1, wherein A flow distribution plate is arranged at a position close to the windward front end in the windward area, and the flow distribution plate is located on the side of the wind guide close to the blowing opening; the flow distribution plate extends towards the position of the blowing opening so as to distribute the airflow entering the blowing opening and guide the airflow to the leeward area and the front end of the windward area.

3. The air duct structure of a clothes drying machine according to claim 2, wherein The windward area is divided into a first shrinkage section and a second shrinkage section; the first shrinkage section is close to the windward front end, and the second shrinkage section is close to the windward tail end; the shrinkage amplitude of the first shrinkage section is greater than that of the second shrinkage section; the side wall plate connected with the blowing opening in the first shrinkage section is a first side wall plate, the flow distribution plate is arranged in a spaced manner with the first side wall plate, and the pressure expansion angle between the flow distribution plate and the first side wall plate is 8-15 degrees.

4. The air duct structure of a clothes drying machine according to claim 1, wherein The bottom edge of the flow distribution plate is connected with the bottom wall of the uniform air chamber, and the height of the flow distribution plate accounts for 60%-100% of the overall height of the uniform air chamber.

5. The air duct structure of a clothes drying machine according to claim 4, wherein On the wind guide, the side of the second air outlet channel close to the blowing opening is a windward plate, and the side away from the blowing opening is a leeward plate; the upper edge of the windward plate and the upper edge of the leeward plate form the second air inlet; the width of the second air inlet of the second air outlet channel gradually decreases in the direction from the windward front end to the windward tail end.

6. The air duct structure of a clothes drying machine according to claim 5, wherein ​ 7. The air duct structure of a clothes drying machine according to claim 5, wherein ​ 8. The air duct structure of a clothes drying machine according to claim 4, wherein ​ 9. The air duct structure of a clothes drying machine according to claim 8, wherein The second air outlet area is divided into a first sub-area and a second sub-area along the length direction of the uniform air cavity, the first sub-area is located between the first air outlet area and the second sub-area; the second air outlet channel includes a first sub-channel and a second sub-channel, the first sub-area is provided with the first sub-channel, and the second sub-area is provided with the second sub-channel; the width of the second air inlet of the second sub-channel is smaller than the width of the second air inlet of the first sub-channel.

10. The air duct structure of the clothes drying machine according to claim 9, wherein The windward plate includes a planar plate segment and an arc-shaped plate segment, a bottom side edge of the planar plate segment is connected to a bottom wall of the uniform air cavity, and a top side edge is connected to the arc-shaped plate segment.

11. The air duct structure of the clothes drying machine according to claim 10, wherein In the second air outlet channel, the included angle between the tangent line of one side of the arc-shaped plate segment connected to the planar plate segment and the median line of the second air inlet is α, in the first sub-channel, 34°≤∠α≤38°, and in the second sub-channel, 40°≤∠α≤44°.

12. The air duct structure of a clothes drying machine according to claim 9, wherein The area of the division interface between the first sub-area and the second sub-area is S1, and the total sum of the air outlet areas of all the second sub-channels is S2, wherein S1=(0.8-1.1)S2.

13. An air supply system characterized by, The air duct structure of any one of claims 1-12.

14. A clothes drying machine characterised in that, The air duct structure of any one of claims 1-12.

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