Air duct structure of body dryer

Abstract

The utility model discloses an air duct structure of a body dryer, and aims to provide an air duct structure of a body dryer, which is favorable for improving the heat dissipation efficiency of a motor, and comprises an air duct body, an air inlet is arranged at one end of the air duct body, and an air outlet is arranged at the other end of the air duct body; the plate filter is detachably mounted in the air inlet of the air duct body; the air direction adjusting assembly is detachably connected to the air outlet of the air duct body; the motor, the main control board and the heater are detachably mounted in the air duct body and are sequentially distributed from the air inlet to the air outlet of the air duct body; and the plurality of radiating fins are vertically and fixedly connected to the outer side of the air duct body and correspond to the motor. The utility model has the beneficial effects that the air outlet direction can be adjusted to enlarge the air sweeping range, so that the applicable range of people with different body types is enlarged, and the practicability is improved; heat generated by the motor is dissipated outwards through the heat dissipation fins, and the purpose of improving the heat dissipation efficiency of the motor is achieved.

Description

A duct structure for a dryer Technical Field

[0001] This utility model relates to the technical field of air ducts for dryers, and in particular to an air duct structure for a dryer. Background Technology

[0002] After showering, people need to dry their bodies. Traditional methods of drying with towels have drawbacks in terms of dryness, hygiene, and convenience. For example, in public shower facilities, the shower stalls and changing rooms are often connected. The steam from the shower can drift into the changing room, making the air already quite humid. Using a towel, especially a semi-dry towel used in the shower, is ineffective in this situation. Not only does it feel uncomfortable to put on clothes, but it also increases the risk of catching a cold. Some customers use a hairdryer to dry themselves completely, which is time-consuming and also increases the risk of catching a cold, especially for people with long hair. Furthermore, given limited facilities, regulations in many public shower facilities often prohibit the use of hairdryers. In addition, from a hygiene perspective, using only one towel to dry oneself from head to toe is unhygienic. Moreover, using a towel to dry oneself in the changing room causes water to be squeezed onto the floor, increasing management costs and difficulties. Similarly, using hotel bath towels or hand towels to dry oneself also poses certain hygiene risks. In household use, the use of towels or bath towels presents challenges related to resource consumption, such as storage, washing, and drying. In medical and elderly care settings, issues like mobility limitations, frailty, and poor self-care abilities for patients or the elderly must be considered. Therefore, body dryers have been designed to address the shortcomings of traditional towel drying.

[0003] In existing technologies, since body dryers require a motor to draw airflow, the motor is usually installed inside a duct, which can easily lead to low heat dissipation efficiency and affect the motor's lifespan. In addition, since body dryers are usually used in high-humidity environments, the suction action of the motor creates negative pressure inside the duct, making it easy for external moisture to be drawn into the duct, which can damage the electronic components inside the duct. Furthermore, the airflow range is limited, especially for larger users, as it cannot provide a wide range of airflow over the body. Summary of the Invention

[0004] The present invention aims to overcome the shortcomings of low heat dissipation efficiency of motors in existing technologies by providing a duct structure for a dryer that improves motor heat dissipation efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A duct structure for a dryer, comprising:

[0007] The air duct body has an air inlet at one end and an air outlet at the other end.

[0008] A plate filter, which can be detachably installed inside the air inlet of the duct body;

[0009] The airflow adjustment component is detachably connected to the air outlet of the air duct body;

[0010] The motor, main control board, and heater can all be detached and installed in the air duct body, and are distributed sequentially from the air inlet to the air outlet of the air duct body.

[0011] Several heat dissipation fins are vertically fixed to the outside of the air duct body and correspond to the motor. The motor is located inside the air duct body, allowing natural air to enter through the air inlet, pass through the plate filter, and then flow into the air duct body. After passing through the main control board, it is heated by the heater and finally blown onto the human body through the air outlet, thus drying the body. The main control board is located between the heater and the motor, which facilitates the dissipation of heat and the removal of moisture from the main control board by natural cool air, thereby extending the service life of the main control board. The airflow adjustment component is used to adjust the airflow direction to expand the sweeping range, thereby expanding the applicable range for people of different body types and improving practicality. The heat generated by the motor itself is dissipated to the outside through the heat dissipation fins, achieving the purpose of improving the motor's heat dissipation efficiency.

[0012] Preferably, the air outlet is located on one side of the duct body, and the plate filter is arranged at an angle. One end of the plate filter is connected to one side of the duct body and away from the air outlet, while the other end of the plate filter is connected to the corresponding side of the duct body and close to the air outlet. In use, the duct body is placed horizontally inside the housing, with the air outlet facing upwards towards the user. After use, moisture in the outside air is likely to adhere to the plate filter. Therefore, the angled arrangement of the plate filter facilitates the accumulation and fall off of moisture adhering to the filter, reducing the risk of it seeping into the duct body and thus improving moisture resistance.

[0013] Preferably, a guide plate is provided inside the air inlet. One end of the guide plate is connected to the side wall of the plate filter, and the other end is connected to the edge of the air inlet. One side of the guide plate is inclined and forms a V-shaped structure with the plate filter. The corresponding side of the guide plate is connected to the corresponding side of the duct body. Furthermore, providing a guide plate inside the air inlet facilitates the collection and removal of moisture adhering to the plate filter, which is then guided through the guide plate and discharged from the air inlet into the duct body, further reducing the risk of moisture seeping into the duct body and thus improving moisture resistance.

[0014] Preferably, the other end of the duct body is provided with an air outlet pipe. The air outlet pipe is L-shaped, and the bend of the air outlet pipe is an arc-shaped structure. One end of the air outlet pipe transitions evenly to the other end through the arc-shaped structure. One end of the air outlet pipe is sleeved on the outer wall of the duct body and is sealed and snapped together with the duct body. The center of the other end of the air outlet pipe is recessed into the air outlet pipe to form an air guide groove. The bottom of the air guide groove is hemispherical, and the opening end of the air guide groove forms an outwardly opening horn. There are several air outlets located on the other end of the air outlet pipe. The several air outlets are evenly distributed circumferentially on the end face of the opening end of the air guide groove with the air guide groove as the center. The air direction adjustment component is detachably installed on the other end of the air outlet pipe. The arc-shaped structure at the bend of the air outlet duct helps reduce wind resistance, thereby reducing noise and energy loss during air delivery. The structural design of the air guide channel also helps reduce wind resistance, thus reducing noise. At the same time, the bottom of the air guide channel is hemispherical, and the flared structure design helps reduce water splashing into the air duct body through the air outlet, providing good waterproof effect. Several air outlets are evenly distributed circumferentially on the opening end face of the air guide channel, so that hot air can be blown evenly to the human body, improving human comfort. The side wall of the air guide channel is provided with a cable outlet hole and a sealing body for sealing the cable (not shown in the figure), which facilitates the connection of the drive mechanism cable.

[0015] Preferably, the airflow adjustment component includes a fixed ring and several guide vanes. One end of the fixed ring is fitted onto the outer wall of the air outlet duct and is detachably connected to the air outlet duct. The air outlet and the air guide groove are both located within the fixed ring, and the other end of the fixed ring is suspended. The several guide vanes are spaced parallel to each other within the fixed ring, forming a gap with the end of the air outlet duct. A drive mechanism is provided within the air guide groove, and the several guide vanes are synchronously rotated and connected to the fixed ring under the drive of the drive mechanism. The gap facilitates the synchronous rotation of the guide vanes by the drive mechanism, thereby enabling the airflow at the air outlet to sweep horizontally, expanding the sweeping range and thus expanding the applicable range for people of different body types, improving practicality. Installing the drive mechanism within the air guide groove saves space and facilitates maintenance and heat dissipation.

[0016] Preferably, the outer wall of the air guide duct is located inside the air outlet duct, and the inner wall of the air guide duct is covered with a heat insulation layer, which is fixedly connected to the air guide duct. The heat insulation layer helps to prevent the heat generated by the heater from being conducted to the drive mechanism through the side wall of the air guide duct, thereby extending its service life.

[0017] Preferably, the drive mechanism includes a motor base, a geared motor, and a push rod. The motor base is fixedly connected to the bottom of the air guide trough. The geared motor is detachably mounted on the motor base. A drive gear is provided on the output end of the geared motor. The push rod is perpendicular to the air guide blades and located within the gap. The length of the push rod is less than the inner diameter of the fixed ring. One side of the push rod is rotatably connected to one side of several air guide blades. The corresponding side of the air guide blades is suspended. An elastic telescopic body is provided on the corresponding side of the push rod. One side of the elastic telescopic body is fixedly connected to the push rod. The corresponding side of the elastic telescopic body is provided with a rack that meshes with the drive gear. The length direction of the rack is parallel to that of the push rod. A waterproof shell is fitted over the geared motor. The waterproof shell is detachably connected to the geared motor. When the wind direction adjustment component is working, the geared motor rotates alternately in the forward and reverse directions, driving the drive gear to rotate alternately in the forward and reverse directions. Through the meshing relationship with the rack, the push rod is driven to move back and forth in a direction perpendicular to the wind guide blades via the elastic telescopic body, ultimately achieving synchronous sweeping of the wind guide blades. The elastic telescopic body ensures that the rack is always meshed with the drive gear under its elastic action. The waterproof shell prevents water from entering the geared motor, improving its service life.

[0018] Preferably, the elastic telescopic body includes a rectangular shell one and a rectangular shell two. The bottom of the rectangular shell one is fixedly connected to the push rod, and the open end of the rectangular shell one is slidably connected to the open end of the rectangular shell two. The rack is fixed to the bottom of the rectangular shell two. The interiors of the rectangular shell one and the rectangular shell two together form a cavity. Several evenly distributed springs are provided in the cavity, and the two ends of the springs are fixedly connected to the bottoms of the rectangular shell one and the rectangular shell two, respectively. The slidable connection between the open end of the rectangular shell one and the open end of the rectangular shell two improves the internal sealing and waterproofing, prevents the springs from getting damp and rusting, extends their service life, and facilitates adaptation to spring deformation, enabling synchronous sweeping of the guide vanes.

[0019] Preferably, the other end of the air outlet is inclined towards the end of the air duct body with the air inlet, forming an inclined structure. This allows the air outlet to face the front or back of the human body, achieving air delivery to a larger area of ​​the body and improving drying efficiency; it also helps reduce the risk of hair and liquid entering the air duct body from the air outlet.

[0020] Preferably, the side wall of the air duct body is provided with heat dissipation holes corresponding to the motor. The motor is located inside the air duct body and the heat dissipation holes are sealed. The heat dissipation fins are fixedly connected to the outer side wall of the air duct body through a portion of their edges, and the heat dissipation fins contact the motor surface after passing through the heat dissipation holes through another portion of their edges. Part of the motor's heat is dissipated through the heat dissipation holes, and the other part of the heat is transferred to the heat dissipation fins through its surface for further dissipation, thereby further improving the motor's heat dissipation effect.

[0021] The beneficial effects of this utility model are: it facilitates the dissipation of heat and removal of moisture from the main control board by natural cool air, thus extending the service life of the main control board; the air outlet direction is adjustable to expand the sweeping range, thereby expanding the applicable range for people of different body types and improving practicality; the heat generated by the motor itself is dissipated to the outside through the heat dissipation fins, achieving the purpose of improving the motor's heat dissipation efficiency; the inclined arrangement of the plate filter and the setting of the guide plate facilitate the accumulation and fall of moisture adhering to the plate filter, reducing the risk of it seeping into the air duct body, thus improving the moisture resistance; the arc structure design at the bend of the air outlet duct helps to reduce wind resistance, thereby reducing noise and energy loss during air delivery; the structural design of the air guide channel helps to reduce wind resistance, thus helping to reduce noise; at the same time, the bottom shape of the air guide channel is hemispherical, and the flared structure design helps to reduce... Water splashes into the air duct body through the air outlet, providing good waterproofing. Several air outlets are evenly distributed circumferentially on the open end face of the air guide channel, allowing hot air to be blown evenly onto the human body, improving comfort. The drive mechanism is installed inside the air guide channel, which saves space and facilitates maintenance and heat dissipation. The heat insulation layer prevents heat generated by the heater from being conducted to the drive mechanism through the side wall of the air guide channel, thus extending its service life. It also prevents the spring from getting damp and rusting, extending its service life. The air outlets can be directed towards the front or back of the human body, achieving air delivery to a larger area and improving drying efficiency. It also reduces the risk of hair and liquid entering the air duct body through the air outlets. Part of the motor's heat is dissipated through the heat dissipation holes, and the other part is transferred to the heat dissipation fins through its surface, further improving the motor's heat dissipation effect. Attached Figure Description

[0022] Figure 1 is a structural schematic diagram of this utility model;

[0023] Figure 2 is a cross-sectional view of DD in Figure 1;

[0024] Figure 3 is an enlarged view of the structure at point A in Figure 2;

[0025] Figure 4 is an enlarged view of the structure at point C in Figure 2;

[0026] Figure 5 is a cross-sectional view of EE in Figure 1;

[0027] Figure 6 is an enlarged view of the structure at point B in Figure 2.

[0028] In the diagram: 1. Air duct body, 2. Air inlet, 3. Air outlet, 4. Plate filter, 5. Air direction adjustment component, 6. Motor, 7. Main control board, 8. Heater, 9. Heat dissipation fins, 10. Guide plate, 11. Air outlet duct, 12. Air guide slot, 13. Heat dissipation hole, 14. Fixing ring, 15. Air guide blade, 16. Drive mechanism, 17. Insulation layer, 18. Motor base, 19. Gear motor, 20. Push rod, 21. Drive gear, 22. Elastic telescopic body, 23. Rack, 24. Waterproof shell, 25. Rectangular shell one, 26. Rectangular shell two, 27. Cavity, 28. Spring. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of components illustrated in these embodiments do not limit the scope of this application. For ease of illustration, spatial relative terms such as “upper,” “lower,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “below” other elements or features would be fixed “upper” to other elements or features. Thus, the exemplary term “lower” can include both upper and lower orientations. The device may be fixed in other ways (rotated 90 degrees or located in other orientations), and the spatial relative descriptions used herein can be interpreted accordingly. It should also be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale. Techniques, processes, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, processes, and equipment should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be discussed further in subsequent figures.

[0032] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0033] As shown in the embodiments of Figures 1 and 2, a duct structure for a dryer includes a duct body 1, with an air inlet 2 at one end and an air outlet 3 at the other end; a plate filter 4, detachably installed inside the air inlet 2 of the duct body 1; an airflow adjustment component 5, detachably connected to the air outlet 3 of the duct body 1; a motor 6, a main control board 7, and a heater 8, all detachably installed inside the duct body 1 and distributed sequentially from the air inlet 2 to the air outlet 3 of the duct body 1; and several heat dissipation fins 9, vertically fixedly connected to the outside of the duct body 1 and corresponding to the motor 6.

[0034] As shown in Figures 2 and 3, the air outlet 3 is located on one side of the air duct body 1, and the plate filter 4 is arranged at an angle. One end of the plate filter 4 is connected to one side of the air duct body 1 and is far away from the air outlet 3, while the other end of the plate filter 4 is connected to the other side of the air duct body 1 and is close to the air outlet 3.

[0035] A guide plate 10 is provided inside the air inlet 2. One end of the guide plate 10 is connected to the side wall of the plate filter 4, and the other end of the guide plate 10 is connected to the edge of the air inlet 2. One side of the guide plate 10 is arranged at an angle and forms a V-shaped structure together with the plate filter 4. The other side of the guide plate 10 is connected to the other side of the air duct body 1.

[0036] As shown in Figures 1, 2, 4, and 5, the other end of the air duct body 1 is provided with an air outlet pipe 11. The air outlet pipe 11 is L-shaped, and the bend of the air outlet pipe 11 is an arc-shaped structure. One end of the air outlet pipe 11 transitions evenly to the other end through the arc-shaped structure. One end of the air outlet pipe 11 is sleeved on the outer wall of the air duct body 1 and is sealed and snapped together with the air duct body 1. The center of the other end of the air outlet pipe 11 is recessed into the air outlet pipe 11 to form an air guide groove 12. The bottom of the air guide groove 12 is hemispherical, and the opening end of the air guide groove 12 forms an outwardly opening trumpet mouth. There are several air outlets 3, all located on the other end of the air outlet pipe 11. The several air outlets 3 are evenly distributed circumferentially on the end face of the opening end of the air guide groove 12 with the air guide groove 12 as the center. The air direction adjustment component 5 is detachably installed on the other end of the air outlet pipe 11.

[0037] As shown in Figures 1 and 5, the wind direction adjustment component 5 includes a fixed ring 14 and several guide vanes 15. One end of the fixed ring 14 is sleeved on the outer wall of the air outlet 11 and is detachably connected to the air outlet 11. The air outlet 3 and the air guide groove 12 are both located inside the fixed ring 14. The other end of the fixed ring 14 is suspended. Several guide vanes 15 are distributed parallel to each other at intervals inside the fixed ring 14 and form a gap with the end of the air outlet 11. A drive mechanism 16 is provided in the air guide groove 12. The several guide vanes 15 are synchronously rotated and connected to the fixed ring 14 under the drive of the drive mechanism 16.

[0038] As shown in Figure 5, the outer wall of the air guide duct 12 is located inside the air outlet duct 11, and the inner wall of the air guide duct 12 is covered with a heat insulation layer 17, which is fixedly connected to the air guide duct 12.

[0039] The drive mechanism 16 includes a motor base 18, a geared motor 19, and a push rod 20. The motor base 18 is fixedly connected to the bottom of the air guide trough 12. The geared motor 19 is detachably mounted on the motor base 18. A drive gear 21 is provided on the output end of the geared motor 19. The push rod 20 is perpendicular to the air guide blades 15 and located within the gap. The length of the push rod 20 is less than the inner diameter of the fixed ring 14. One side of the push rod 20 is rotatably connected to one side of several air guide blades 15. The other side of the corresponding air guide blades 15 is suspended. An elastic telescopic body 22 is provided on the other side of the push rod 20. One side of the elastic telescopic body 22 is fixedly connected to the push rod 20. A rack 23 that meshes with the drive gear 21 is provided on the other side of the elastic telescopic body 22. The length direction of the rack 23 is parallel to that of the push rod 20. A waterproof shell 24 is fitted over the outside of the geared motor 19. The waterproof shell 24 is detachably connected to the geared motor 19.

[0040] The elastic telescopic body 22 includes a rectangular shell 1 25 and a rectangular shell 26. The bottom of the rectangular shell 1 25 is fixedly connected to the push rod 20. The open end of the rectangular shell 1 25 is slidably connected to the open end of the rectangular shell 26. The rack 23 is fixed to the bottom of the rectangular shell 26. The interior of the rectangular shell 1 25 and the interior of the rectangular shell 26 together form a cavity 27. Several evenly distributed springs 28 are provided in the cavity 27. The two ends of the springs 28 are fixedly connected to the bottom of the rectangular shell 1 25 and the bottom of the rectangular shell 26, respectively.

[0041] As shown in Figure 2, the other end of the air outlet pipe 11 is inclined toward the end of the air duct body 1 that has an air inlet 2, forming an inclined structure.

[0042] As shown in Figures 2 and 6, the side wall of the air duct body 1 is provided with heat dissipation holes 13 corresponding to the motor 6. The motor 6 is located inside the air duct body 1 and the heat dissipation holes 13 are sealed. The heat dissipation fins 9 are fixedly connected to the outer side wall of the air duct body 1 through a part of their edges, and the heat dissipation fins 9 are in contact with the surface of the motor 6 after passing through the heat dissipation holes 13 through another part of their edges.

[0043] In the first embodiment, the motor 6 is placed inside the air duct body 1, so that natural air enters from the air inlet 2 under the drive of the motor 6, passes through the plate filter 4 and enters the air duct body 1, flows through the main control board 7 and is heated by the heater 8, and finally blows to the human body through the air outlet 3, which has the effect of drying the human body; the main control board 7 is located between the heater 8 and the motor 6, which is conducive to the natural cold air to dissipate heat and remove moisture from the main control board 7, which is conducive to the heat dissipation of the main control board 7 and thus helps to extend the service life of the main control board 7; the heat generated by the motor 6 itself is dissipated to the outside through the heat dissipation fins 9, which helps to improve the heat dissipation efficiency of the motor 6.

[0044] In the second embodiment, during use, the air duct body 1 is placed horizontally inside the housing, so that the air outlet 3 faces upward towards the human body; after use, the moisture in the outside air may adhere to the plate filter 4. Therefore, by arranging the plate filter 4 at an angle, the moisture adhering to the plate filter 4 can be gathered and then fall off, reducing the risk of it seeping into the air duct body 1, thereby improving the moisture-proof capability.

[0045] In Example 3, based on Example 2, a guide plate 10 is further provided inside the air inlet 2. This facilitates the collection and removal of water vapor adhering to the plate filter 4, which is then guided out of the air duct body 1 through the air inlet 2 after falling off. This further reduces the risk of water vapor seeping into the air duct body 1, thereby improving the moisture-proof capability.

[0046] In Example 4, when the wind direction adjustment component 5 is working, the reduction motor 19 rotates alternately in the forward and reverse directions, driving the drive gear 21 to rotate alternately in the forward and reverse directions. Through the meshing relationship with the rack 23, the push rod 20 is driven to move back and forth in a direction perpendicular to the wind guide blade 15 via the elastic telescopic body 22, ultimately achieving synchronous horizontal sweeping of the wind guide blade 15. Under its elastic action, the elastic telescopic body 22 ensures that the rack 23 is always meshed with the drive gear 21. The waterproof shell prevents water from entering the reduction motor 19, improving its service life.

[0047] In Example 5, based on Example 1, part of the heat from the motor 6 is dissipated through the heat dissipation holes 13, and another part of the heat is transferred to the heat dissipation fins 9 through its surface for heat dissipation, thereby further improving the heat dissipation effect of the motor 6.

[0048] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A duct structure for a dryer, characterized in that, include: The air duct body (1) has an air inlet (2) at one end and an air outlet (3) at the other end; a plate filter (4) is detachably installed in the air inlet (2) of the air duct body (1); an air direction adjustment component (5) is detachably connected to the air outlet (3) of the air duct body (1); a motor (6), a main control board (7) and a heater (8) are all detachably installed in the air duct body (1) and are distributed sequentially from the air inlet (2) to the air outlet (3) of the air duct body (1); and several heat dissipation fins (9) are vertically fixed to the outside of the air duct body (1) and correspond to the motor (6).

2. The air duct structure of a dryer according to claim 1, characterized in that, The air outlet (3) is located on one side of the air duct body (1). The plate filter (4) is arranged at an angle. One end of the plate filter (4) is connected to one side of the air duct body (1) and is far away from the air outlet (3). The other end of the plate filter (4) is connected to the other side of the air duct body (1) and is close to the air outlet (3).

3. The air duct structure of a dryer according to claim 2, characterized in that, The air inlet (2) is provided with a guide plate (10). One end of the guide plate (10) is connected to the side wall of the plate filter (4), and the other end of the guide plate (10) is connected to the edge of the air inlet (2). One side of the guide plate (10) is arranged at an angle and together with the plate filter (4) forms a V-shaped structure. The other side of the guide plate (10) is connected to the other side of the air duct body (1).

4. The air duct structure of a dryer according to claim 1, characterized in that, The other end of the air duct body (1) is provided with an air outlet pipe (11). The air outlet pipe (11) is L-shaped, and the bend of the air outlet pipe (11) is an arc structure. One end of the air outlet pipe (11) transitions evenly to the other end through the arc structure. One end of the air outlet pipe (11) is sleeved on the outer wall of the air duct body (1) and is sealed and snapped to the air duct body (1). The center of the other end of the air outlet pipe (11) is recessed into the air outlet pipe (11). A guide trough (12) is formed. The bottom of the guide trough (12) is hemispherical. The opening end of the guide trough (12) forms an outward-opening horn. There are several air outlets (3), all located on the other end of the air outlet pipe (11). The several air outlets (3) are evenly distributed around the guide trough (12) along the circumferential direction on the opening end face of the guide trough (12). The air direction adjustment component (5) is detachably installed on the other end of the air outlet pipe (11).

5. The air duct structure of a dryer according to claim 4, characterized in that, The wind direction adjustment component (5) includes a fixed ring (14) and several guide vanes (15). One end of the fixed ring (14) is sleeved on the outer wall of the air outlet pipe (11) and is detachably connected to the air outlet pipe (11). The air outlet (3) and the air guide groove (12) are both located inside the fixed ring (14). The other end of the fixed ring (14) is suspended. Several guide vanes (15) are distributed in parallel at intervals inside the fixed ring (14) and form a gap with the end of the air outlet pipe (11). A driving mechanism (16) is provided in the air guide groove (12). Several guide vanes (15) are synchronously rotated and connected to the fixed ring (14) under the drive of the driving mechanism (16).

6. The air duct structure of a dryer according to claim 5, characterized in that, The outer wall of the air guide groove (12) is located inside the air outlet pipe (11), and the inner wall of the air guide groove (12) is covered with a heat insulation layer (17), which is fixedly connected to the air guide groove (12).

7. The air duct structure of a dryer according to claim 5 or 6, characterized in that, The drive mechanism (16) includes a motor base (18), a geared motor (19), and a push rod (20). The motor base (18) is fixedly connected to the bottom of the air guide trough (12). The geared motor (19) is detachably mounted on the motor base (18). A drive gear (21) is provided on the output end of the geared motor (19). The push rod (20) is perpendicular to the air guide blades (15) and located within the gap. The length of the push rod (20) is less than the inner diameter of the fixing ring (14). One side of the push rod (20) is connected to one side of several air guide blades (15). Rotary connection, the other side of the guide vane (15) is suspended, the other side of the push rod (20) is provided with an elastic telescopic body (22), one side of the elastic telescopic body (22) is fixedly connected to the push rod (20), the other side of the elastic telescopic body (22) is provided with a rack (23) that meshes with the drive gear (21), the length direction of the rack (23) is parallel to the push rod (20), the outer side of the geared motor (19) is covered with a waterproof shell (24), the waterproof shell (24) and the geared motor (19) are detachably connected.

8. The air duct structure of a dryer according to claim 7, characterized in that, The elastic telescopic body (22) includes a rectangular shell one (25) and a rectangular shell two (26). The bottom of the rectangular shell one (25) is fixedly connected to the push rod (20). The open end of the rectangular shell one (25) is sealed and slidably connected to the open end of the rectangular shell two (26). The rack (23) is fixed to the bottom of the rectangular shell two (26). The interior of the rectangular shell one (25) and the interior of the rectangular shell two (26) together form a cavity (27). The cavity (27) is provided with a number of evenly distributed springs (28). The two ends of the springs (28) are fixedly connected to the bottom of the rectangular shell one (25) and the bottom of the rectangular shell two (26) respectively.

9. The air duct structure of a dryer according to claim 4, characterized in that, The other end of the air outlet pipe (11) is inclined toward the end of the air duct body (1) with an air inlet (2) to form an inclined structure.

10. The air duct structure of a dryer according to claim 1, characterized in that, The side wall of the air duct body (1) is provided with heat dissipation holes (13) corresponding to the motor (6). The motor (6) is located inside the air duct body (1) and the heat dissipation holes (13) are sealed. The heat dissipation fins (9) are fixedly connected to the outer side wall of the air duct body (1) through a part of their edges. The heat dissipation fins (9) penetrate the heat dissipation holes (13) through another part of their edges and then contact the surface of the motor (6).

Images