Nursing appliance

Abstract

The utility model discloses a nursing appliance which comprises an air cylinder, an air duct wall is arranged in the air cylinder, a first air duct is formed in the air duct wall, the first air duct is provided with a first air outlet and a first air inlet, and the first air outlet is located in the air cylinder; a handle; a fan assembly; and a third air duct is formed at the position of the adapter, and the third air duct communicates with the second air outlet and the first air outlet. Therefore, the first air outlet is located in the air duct, and the third air duct is communicated between the first air duct and the second air duct, so that main air flow and secondary air flow can be gathered and mixed in the air duct in advance and then flow to the air outlet end in front of the nursing appliance together, and the flow path of the main air flow can be shortened; according to the invention, the main air flow can flow more stably and smoothly, and the main air flow and the secondary air flow can be uniformly mixed in the process of flowing to the air outlet end of the nursing appliance, so that a user can feel the uniformly mixed air flow at the air outlet end of the nursing appliance.

Description

Technical Field

[0001] This utility model relates to the field of hair dryer technology, and in particular to a care device. Background Technology

[0002] Hair dryers, as a common personal care tool, are used for a variety of purposes, such as drying substances (like paint and hair) and cleaning or peeling surface layers. Hair dryers are equipped with a fan and an air duct; the fan draws outside air into the duct and then outputs a high-speed airflow to meet different user needs.

[0003] In related technologies, the air duct design of hair dryers is not reasonable enough. The high-speed airflow output by the hair dryer at the air outlet is prone to turbulence and uneven temperature, resulting in poor air output effect and poor user comfort and user experience. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a nursing device with more stable, smooth, and evenly distributed airflow. This reduces the risk of users coming into contact with high-temperature components, making it safer to use. Furthermore, because there are fewer high-temperature heating elements, the insulation and heat dissipation components are also reduced, resulting in a more compact, smaller, and lighter structure.

[0005] A nursing device according to a first aspect of the present invention includes: a blower, wherein a duct wall is provided inside the blower, the duct wall and the inner wall of the blower are radially spaced apart, a first air duct is formed inside the duct wall, and a first air outlet and a first air inlet are provided at both ends of the first air duct in the front-rear direction, and an outlet is provided at the front end of the blower; a handle, the handle is connected to the lower side of the blower, a second air duct is formed inside the handle, and a second air outlet and a second air inlet are provided at both ends of the second air duct in the vertical direction; a fan assembly, the fan assembly is disposed inside the second air duct; a heating module, the heating module is used to heat the air in the second air duct and / or the first air duct; a connector, the connector is disposed inside the blower and at least partially located between the inner wall of the blower and the duct wall; wherein a third air duct is formed at the connector, the third air duct is connected to the second air outlet and the first air outlet respectively, so as to guide the air in the second air duct to the first air outlet through the third air duct.

[0006] A nursing device according to a second aspect of the present invention includes: a blower, wherein a duct wall is provided inside the blower, the duct wall and the inner wall of the blower are radially spaced apart, a first air duct is formed inside the duct wall, and a first air outlet and a first air inlet are provided at both ends of the first air duct in the front-rear direction, the first air outlet being located inside the blower, and an outlet being provided at the front end of the blower; a handle, the handle being connected to the lower side of the blower, a second air duct is formed inside the handle, and a second air outlet and a second air inlet are provided at both ends of the second air duct in the vertical direction; a fan assembly, the fan assembly being disposed inside the second air duct; a heating module, the heating module being used to heat the air in the second air duct and / or the first air duct; and a connector, the connector being disposed inside the blower and at least partially located between the inner wall of the blower and the duct wall; wherein a third air duct is formed at the connector, the third air duct being connected to the second air outlet and the first air outlet respectively.

[0007] Therefore, by placing the first air outlet inside the air duct and connecting the third air duct between the first and second air ducts, the main airflow and secondary airflow can converge and mix inside the air duct in advance, and then flow together to the air outlet in front of the nursing device. This not only shortens the flow path of the main airflow and makes the flow of the main airflow more stable and smooth, but also allows the main airflow and secondary airflow to mix evenly as they flow to the air outlet of the nursing device, so that the user feels a uniformly mixed airflow at the air outlet of the nursing device.

[0008] In some examples of this utility model, the adapter includes two air guide walls that are spaced apart from each other in the front-rear direction, forming the third air duct between the two air guide walls, and the two air guide walls extend forward.

[0009] In some examples of this utility model, both of the air guide walls are arranged in a ring shape; and / or both of the air guide walls are arranged at the lower part of the air duct and are both sheet-shaped.

[0010] In some examples of this utility model, the duct wall is provided with a ventilation opening, through which the third duct is connected to the second air outlet and the first air outlet.

[0011] In some examples of this utility model, the vent is annular and circumferentially arranged on the side of the duct wall.

[0012] In some examples of this invention, the care appliance further includes a heating module, which is at least partially located in the second air duct.

[0013] In some examples of this utility model, the heating module includes a plurality of sheet-like heating elements, which are spaced apart axially and / or circumferentially.

[0014] In some examples of this utility model, the air guide wall is provided with a heat insulation component, and at least a portion of the heat insulation component is provided with the heating module.

[0015] In some examples of this utility model, the heating module is partially disposed within the third air duct, and the cross-sectional area of ​​this heating module gradually increases in the direction gradually moving away from the second air outlet.

[0016] In some examples of this invention, the heating module extends forward.

[0017] In some examples of this utility model, the heating modules are arranged axially and / or circumferentially at intervals within the third air duct.

[0018] In some examples of this invention, the heating module located in the second air duct is flat.

[0019] In some examples of this utility model, the nursing device further includes a heating module, which is at least partially disposed inside the air duct and located between the inner wall of the air duct and the air duct wall, and the heating module at least partially constitutes the adapter.

[0020] In some examples of this utility model, an air outlet grille is provided downstream of the third air duct.

[0021] In some examples of this utility model, the air outlet grille is at least partially an inclined air guide grille; and / or the air outlet grille is at least partially an arc-shaped air guide grille, in order to further guide the air in the third air duct.

[0022] In some examples of this utility model, the end of the air duct corresponding to the first air outlet is at least partially provided with a third air outlet. The third air outlet is located between the inner wall of the air duct and the wall of the air passage. The second air outlet includes a first air outlet and a second air outlet. The first air outlet is connected to the third air passage, and the third air outlet is connected to the second air outlet.

[0023] In some examples of this utility model, the nursing device further includes a circuit board disposed in the handle; and / or the circuit board is disposed inside the air duct and located between the air duct wall and the inner wall of the air duct.

[0024] A nursing device according to a third aspect of the present invention includes: a blower, wherein a duct wall is provided inside the blower, the duct wall and the inner wall of the blower are radially spaced apart, a first air duct is formed inside the duct wall, a first air outlet and a first air inlet are provided at both ends of the first air duct in the front-rear direction, and the front end of the blower is provided with a unique outlet of the nursing device; a handle, the handle is connected to the lower side of the blower, a second air duct is formed inside the handle, a second air outlet and a second air inlet are respectively provided at both ends of the second air duct in the vertical direction; a fan assembly, the fan assembly is disposed in the second air duct; a heating module, the heating module is used to heat the air in the second air duct and / or the first air duct; the first air duct and the second air duct converge in the blower and are discharged from the unique outlet of the nursing device.

[0025] In some examples of this utility model, the nursing device further includes: an adapter, wherein the first air outlet is located inside the air duct, the adapter is disposed inside the air duct and is at least partially located between the inner wall of the air duct and the air duct wall, and a third air duct is formed at the adapter, the third air duct being connected to the second air outlet and the first air outlet respectively.

[0026] In some examples of this utility model, the nursing device further includes a heating module, which is at least partially disposed in the second air duct.

[0027] Therefore, by setting up a third air duct and a heating module, the third air duct is connected between the first and second air ducts. In this way, the main airflow and the secondary airflow can converge and mix near the first air outlet or the outlet of the third air duct to form a mixed airflow, and then flow together to the outlet of the nursing device. This not only shortens the flow path of the main airflow, but also reduces the amount of high-temperature heating, insulation and heat dissipation, and fluid loss or obstruction caused by changing direction or passing through more components. This improves air outlet efficiency, reduces the difficulty of fluid and noise optimization, enhances the user experience, and makes the structure more compact, miniaturized and lightweight.

[0028] Because the second air outlet of the second air duct after passing through the heating module is hidden in the duct wall where it is difficult for the user to directly access it, and the heating module is located at the junction of the handle and the air duct, it makes it safer for the user to use. For example, it is difficult for fingers, hair or other sharp objects to enter the second air duct and cause safety accidents.

[0029] Because the aforementioned flow channel design prevents the outer wall of the blower from directly contacting the heated fluid, users will not feel overheated even when holding the blower. Even without any anti-scalding design near the outer wall of the blower, the possibility of burns or overheating is significantly reduced. Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0030] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0031] Figure 1 This is a schematic diagram of a nursing device according to the first embodiment of the present utility model;

[0032] Figure 2 This is a schematic diagram of a nursing device according to a second embodiment of the present utility model;

[0033] Figure 3 This is a cross-sectional view of a nursing device according to a second embodiment of the present utility model;

[0034] Figure 4 This is a schematic diagram of a nursing device according to a third embodiment of the present utility model;

[0035] Figure 5 This is a schematic diagram of a nursing device according to the fourth embodiment of the present utility model;

[0036] Figure 6 This is a side view of a nursing device according to the fourth embodiment of the present utility model;

[0037] Figure 7 This is a cross-sectional view of the nursing device according to the fourth embodiment of the present utility model along the AA direction;

[0038] Figure 8 This is a top view of the nursing device according to the fourth embodiment of the present utility model;

[0039] Figure 9 This is a cross-sectional view of the nursing device according to the fourth embodiment of the present utility model along the BB direction;

[0040] Figure 10 This is a cross-sectional view of a nursing device according to the fifth embodiment of the present utility model;

[0041] Figure 11 This is an exploded view of the nursing device according to the fifth embodiment of the present utility model;

[0042] Figure 12 This is a schematic diagram of a heating module according to an embodiment of the present utility model;

[0043] Figure 13 This is a schematic diagram of another heating module according to an embodiment of the present utility model;

[0044] Figure 14 This is a schematic diagram of a nursing device according to the sixth embodiment of the present utility model.

[0045] Figure label:

[0046] 100. Nursing equipment;

[0047] 200. Main airflow; 210. First main airflow; 220. Second main airflow; 300. Secondary airflow;

[0048] 10. Air duct; 11. Air duct wall; 111. First air duct section; 112. Second air duct section; 12. First air duct; 121. First air outlet; 122. First air inlet; 123. Ventilation opening; 13. Inner wall; 14. Third air outlet; 15. Only outlet;

[0049] 20. Handle; 21. Second air duct; 211. Second air outlet; 2111. First air outlet; 2112. Second air outlet; 212. Second air inlet; 22. Fan assembly;

[0050] 30. Adapter; 31. Third air duct; 32. Air guide wall; 321. First air guide wall; 322. Second air guide wall;

[0051] 40. Heating module; 41. Sheet heating element;

[0052] 50. Electrical components; 60. First air duct component; 70. Second air duct component. Detailed Implementation

[0053] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0054] The following is for reference. Figures 1-14 Description of nursing device 100 according to an embodiment of the present utility model.

[0055] In the first aspect embodiment of this utility model, combined with Figure 1 As shown, the nursing device 100 according to this utility model includes: a blower 10, a handle 20, a blower assembly 22, a heating module 40, and an adapter 30.

[0056] The air duct 10 includes an air duct wall 11, which is radially spaced from the inner wall 13 of the air duct 10. A first air duct 12 is formed inside the air duct wall 11. A first air outlet 121 and a first air inlet 122 are respectively provided at both ends of the first air duct 12 in the front-rear direction. An outlet is provided at the front end of the air duct 10. A handle 20 is connected to the lower side of the air duct 10. A second air duct 21 is formed inside the handle 20. A second air outlet 211 and a second air inlet 212 are respectively provided at both ends of the second air duct in the vertical direction. A fan assembly 22 is disposed within the second air duct 21. A heating module 40 is used to heat the air in the second air duct 21 and / or the first air duct 12.

[0057] Furthermore, the adapter 30 is disposed inside the air duct 10 and is at least partially located between the inner wall 13 and the air duct wall 11 of the air duct 10. A third air duct 31 is formed at the adapter 30, and the third air duct 31 is connected to the second air outlet 211 and the first air outlet 121 respectively, so as to guide a portion of the air in the second air duct 21 to the first air outlet 121 through the third air duct 31.

[0058] Specifically, the front end of the air blower 10 is provided with an outlet for airflow. By connecting the handle 20 to the lower side of the air blower 10, the user can hold the handle 20 and operate the care device 100 to direct the air blower 10 towards the user's hair or object to blow air, thus meeting the user's needs for drying substances (such as paint and hair) and cleaning or peeling surface layers.

[0059] Specifically, by providing an air duct wall 11 inside the air duct 10, with the air duct wall 11 and the inner wall 13 of the air duct 10 being radially spaced apart, and the adapter 30 being provided inside the air duct 10 and at least partially located between the inner wall 13 of the air duct 10 and the air duct wall 11, the air duct wall 11, the inner wall 13 of the air duct 10, and the adapter 30 can define an installation space, which can be used to install other electrical components of the nursing device 100.

[0060] Furthermore, a first air duct 12 is formed inside the air duct wall 11, a second air duct 21 is formed inside the handle 20, a fan assembly 22 is provided inside the second air duct 21, and a third air duct 31 is formed inside the adapter 30. By connecting the third air duct 31 to the second air outlet 211 and the first air outlet 121 respectively, the first air duct 12 and the second air duct 21 can be connected through the third air duct 31.

[0061] When the user uses the nursing device 100, the fan assembly 22 operates. Outside air is first drawn into the second air duct 21 by the fan assembly 22, and then, under the restriction and guidance of the third air duct 31, flows out of the third air duct 31 and towards the first air outlet 121. Furthermore, the air velocity near the first air outlet 121 is relatively high, and due to the Bernoulli effect, the air pressure near this location is low. This allows air near the first air inlet 122 of the first air duct 12 to be drawn into the first air duct 12 and then flow out from the first air outlet 121.

[0062] For ease of understanding and explanation, the airflow passing through fan assembly 22 is defined as the main airflow 200, and the airflow not passing through fan assembly 22 is defined as the secondary airflow 300. It can be understood that the airflow passing through the second duct 21 is the main airflow 200, and the airflow exiting from the first outlet 121 of the first duct 12 is the secondary airflow 300. It can be understood that the generation of secondary airflow 300 is due to the Bernoulli effect, not the fan assembly 22.

[0063] In this way, the main airflow 200 and the secondary airflow 300 converge and flow out at the first air outlet 121. This allows for increased airflow from the nursing device 100 without altering the parameters of the fan assembly 22, while ensuring the device's airflow function is met, thus improving its efficiency. Furthermore, this also facilitates the installation of a smaller fan assembly 22 for the same airflow requirements, resulting in a more compact structure, reduced size, and lower power consumption of the nursing device 100.

[0064] In the second aspect embodiment of this utility model, combined with Figures 2-11 As shown, the nursing device 100 according to this utility model includes: a blower 10, a handle 20, a blower assembly 22, a heating module 40, and an adapter 30.

[0065] The ventilation duct 10 includes a duct wall 11, which is radially spaced from the inner wall 13 of the ventilation duct 10. A first air duct 12 is formed inside the duct wall 11. A first air outlet 121 and a first air inlet 122 are respectively provided at both ends of the first air duct 12 in the front-rear direction. An outlet is provided at the front end of the ventilation duct 10. A handle 20 is connected to the lower side of the ventilation duct 10. A second air duct 21 is formed inside the handle 20. A second air outlet 211 and a second air inlet 212 are respectively provided at both ends of the second air duct in the vertical direction. A fan assembly 22 is disposed within the second air duct 21, and the first air outlet 121 is located inside the ventilation duct 10. A heating module 40 is used to heat the air in the second air duct 21 and / or the first air duct 12.

[0066] Furthermore, the adapter 30 is disposed inside the air duct 10 and is at least partially located between the inner wall 13 and the air duct wall 11 of the air duct 10. A third air duct 31 is formed at the adapter 30, and the third air duct 31 is connected to the second air outlet 211 and the first air outlet 121 respectively.

[0067] Specifically, the front end of the hair dryer 10 can be used to vent air. By connecting the handle 20 to the lower side of the hair dryer 10, the user can hold the handle 20 and operate the care device 100 to direct the hair dryer 10 towards the user's hair or object to vent air, thus meeting the user's needs for drying substances (such as paint and hair) and cleaning or peeling surface layers.

[0068] Specifically, by providing an air duct wall 11 inside the air duct 10, with the air duct wall 11 and the inner wall 13 of the air duct 10 being radially spaced apart, and the adapter 30 being provided inside the air duct 10 and at least partially located between the inner wall 13 of the air duct 10 and the air duct wall 11, the air duct wall 11, the inner wall 13 of the air duct 10, and the adapter 30 can define an installation space, which can be used to install other electrical components of the nursing device 100.

[0069] Furthermore, a first air duct 12 is formed inside the air duct wall 11, a second air duct 21 is formed inside the handle 20, a fan assembly 22 is installed inside the second air duct 21, and a third air duct 31 is formed inside the adapter 30. By connecting the third air duct 31 to the second air outlet 211 of the second air duct 21 and the first air outlet 121 of the first air duct 12, the third air duct 31 or its outlet can be located downstream of the first air duct 12 and the second air duct 21, respectively. The first air duct 12 and the second air duct 21 can be connected through the third air duct 31. Also, since the first air outlet 121 is located inside the air duct 10, and the third air duct 31 is connected to the first air outlet 121, the outlet of the third air duct 31 is also located inside the air duct 10.

[0070] When the user uses the nursing device 100, the fan assembly 22 operates. Outside air is first drawn into the second air duct 21 by the fan assembly 22, and then, under the restriction and guidance of the third air duct 31, flows out from the third air duct 31 into the interior of the air duct 10, i.e., in front of the first air outlet 121. Furthermore, the air velocity near the air outlet of the third air duct 31 is relatively high, and due to the Bernoulli effect, the air pressure near this location is low, which can draw air from near the first air inlet 122 of the first air duct 12 into the first air duct 12.

[0071] For ease of understanding and explanation, the airflow passing through the fan assembly 22 is defined as the main airflow 200, and the airflow not passing through the fan assembly 22 is defined as the secondary airflow 300. It can be understood that the airflow that passes through the second air duct 21 and the third air duct 31 in sequence and flows into the air duct 10 is the main airflow 200, and the airflow that flows into the air duct 10 from the first air outlet 121 of the first air duct 12 is the secondary airflow 300.

[0072] In this way, the main airflow 200 and the secondary airflow 300 can converge and mix inside the air duct 10 in advance to form a mixed airflow, and then flow together to the air outlet in front of the nursing device 100 and out. This ensures that the high-speed mixed airflow can be blown out to realize the air outlet function of the nursing device 100, while shortening the flow path of the main airflow 200, making the flow of the main airflow 200 more stable and smooth. It also allows the main airflow 200 and the secondary airflow 300 to have enough travel distance to mix. This allows the heated airflow and the secondary airflow 300 to mix evenly as they flow to the air outlet of the nursing device 100, which is convenient for rectification. As a result, the user can feel a uniformly mixed airflow at the air outlet of the nursing device 100, which can avoid the various fluids from becoming turbulent or having uneven temperatures at the air outlet of the nursing device 100. This can further improve the air outlet effect of the nursing device 100, making the air outlet more uniform and orderly, improving the user's comfort and user experience.

[0073] Furthermore, the secondary airflow 300 is generated due to the Bernoulli effect, not the fan assembly 22. That is, without changing the parameter settings of the fan assembly 22, the air volume of the nursing device 100 can be increased, thereby improving the working efficiency of the nursing device 100. Further, this also facilitates the installation of a smaller fan assembly 22, making the structure of the nursing device 100 more compact, reducing its size, and lowering its power consumption.

[0074] Therefore, by placing the first air outlet 121 inside the air duct 10 and connecting the third air duct 31 between the first air duct 12 and the second air duct 21, the main airflow 200 and the secondary airflow 300 can converge and mix inside the air duct 10 in advance to form a mixed airflow, and then flow together to the air outlet in front of the nursing device 100 and out. This not only shortens the flow path of the main airflow 200 and makes the flow of the main airflow 200 more stable and smooth, but also allows the main airflow 200 and the secondary airflow 300 to mix evenly during the flow to the air outlet of the nursing device 100, so that the user feels a uniformly mixed airflow of hot and cold at the air outlet of the nursing device 100.

[0075] Combination Figures 2-11As shown, the adapter 30 may include two air guide walls 32 that are spaced apart from each other in the front-to-back direction, forming a third air duct 31 between the two air guide walls 32, and both air guide walls 32 extend forward.

[0076] Specifically, by making the adapter 30 mainly include two air guide walls 32 that are arranged at a distance from each other in the air duct 10, and by making one radial end of the air guide wall 32 connected to the inner wall 13 of the air duct 10, and making the other radial end of the air guide wall 32 connected to the air duct wall 11, a third air duct 31 can be formed between the two air guide walls 32.

[0077] Furthermore, by extending both air guide walls 32 forward, the air guide walls 32 can limit the flow path of the airflow. Under the restriction of the two air guide walls 32, the airflow can flow forward, thereby realizing the guiding effect of the third air duct 31 on the main airflow 200, making the flow of the main airflow 200 more stable and smooth, and making the flow of the main airflow 200 more uniform and orderly.

[0078] Furthermore, combined Figures 2-11 As shown, the duct wall 11 has a ventilation opening 123, through which the third duct 31 is connected to the second air outlet 211 and the first air outlet 121. It can be understood that the ventilation opening 123 is the outlet of the third duct 31, and since the ventilation opening 123 is located in the duct wall 11, and the first air outlet 121 is located inside the air duct 10, the ventilation opening 123 and the first air outlet 121 are naturally connected. Thus, the connection between the third duct 31 and the first air outlet 121 can be achieved through the ventilation opening 123. The main airflow 200 of the second duct 21 can enter the third duct 31 through the second air outlet 211, and then enter the air duct 10 through the ventilation duct, where it converges and mixes with the secondary airflow 300 flowing out from the first air outlet 121.

[0079] Optionally, combined Figures 2-11 As shown, both air guide walls 32 are arranged in a ring shape. Specifically, both air guide walls 32 can be arranged in a ring shape, so that the adapter 30 is a ring shape as a whole, and the third air duct 31 is a ring shape. The third air duct 31 is arranged circumferentially around the outside of the air duct wall 11, so that the air inlet of the third air duct 31 is at least partially connected to the second air outlet 211.

[0080] Furthermore, the vent 123 is also arranged in a ring shape and circumferentially around the side of the air duct wall 11, so that the air outlet of the third air duct 31 and the vent 123 are correspondingly connected in the circumferential direction, and the third air duct 31 is circumferentially open towards the inside of the air duct 10.

[0081] On the one hand, after the main airflow 200 passes through the second air outlet 211, it can not only flow directly from the top of the second air outlet 211 into the interior of the air duct 10, but also flow circumferentially under the constraint of the third air duct 31, and then flow out through the vent 123. That is, the main airflow 200 can flow out at any position circumferentially of the vent 123, which can increase the air outlet area of ​​the main airflow 200 at the vent 123, making the outflow of the main airflow 200 more stable and orderly, reducing the turbulence when the main airflow 200 and the secondary airflow 300 converge, thereby improving the working performance of the nursing device 100.

[0082] On the other hand, when the main airflow 200 flowing into the air duct 10 and the secondary airflow 300 flowing out from the first air duct 12 converge and mix, the mixed airflow can also re-enter the third air duct 31 through the vent 123 and then flow out through the vent 123 again. This makes the mixing of the main airflow 200 and the secondary airflow 300 more uniform and efficient, thereby further improving the working performance of the nursing device 100.

[0083] Optionally, both air guide walls 32 are located at the lower part of the air duct 10 and are both sheet-shaped. Correspondingly, the vent 123 is also located on the lower side of the air duct wall 11 and corresponds to the second air outlet 211 in the vertical direction, and the adapter 30 is located between the vent 123 and the second air outlet 211.

[0084] Thus, the adapter 30 can be connected between the circumference of the vent 123 and the circumference of the second air outlet 211, ensuring that the main airflow 200 flowing out of the second air outlet 211 flows directly upward to the vent 123 under the limitation of the adapter 30, and further flows directly upward through the vent 123 into the air duct 10.

[0085] On the one hand, it can shorten the flow path of the main airflow 200, which not only makes the flow of the main airflow 200 more stable and smooth, reducing the obstruction caused by components that may be placed in the middle of the flow channel, but also facilitates the mixing between the main airflow 200 and the secondary airflow 300. On the other hand, it can make the structure of the adapter 30 and the vent 123 simpler and more reliable.

[0086] In addition, in some embodiments of this utility model, combined with Figure 2 and Figure 4As shown, the cross-section of the air guide wall 32 is at least partially curved, with the opening of the curved surface facing away from the first air inlet 122. It should be noted that this cross-section is parallel to both the vertical and horizontal directions. Thus, the air guide wall 32 can be at least partially curved, allowing airflow to flow forward along the curved plate. This not only allows the airflow to flow closely along the curved plate, forming a wider diffused airflow, facilitating the mixing of the main airflow 200 with the secondary airflow 300 at the vent 123, but also reduces airflow separation, avoids turbulence or localized eddies caused by the collision of the two airflows, and reduces operating noise, fluid velocity, and wind direction disturbance.

[0087] Furthermore, in some other embodiments of this utility model, combined with Figure 9 As shown, the cross-section of the air guide wall 32 is at least partially inclined, and the distance between the inclined surface and the first air inlet 122 gradually increases as it approaches the vent 123. It should be noted that the cross-section here is parallel to both the vertical and horizontal directions. Thus, the air guide wall 32 can be at least partially an inclined straight plate, allowing airflow to flow forward along the inclined straight plate. This not only ensures the flow velocity of the main airflow 200 in the third air duct 31 and precisely controls the outlet direction of the main airflow 200 in the third air duct 31, but also simplifies the structure of the air guide wall 32 and facilitates its manufacturing.

[0088] Furthermore, in some embodiments of this utility model, combined with Figure 10 and Figure 11 As shown, two air guide walls 32 are defined as a first air guide wall 321 and a second air guide wall 322. The air duct wall 11 may include a first air duct portion 111 and a second air duct portion 112. The first air guide wall 321 is connected to the outer peripheral end of the first air duct portion 111 to form a first air duct component 60. The second air guide wall 322 is fitted and connected to the middle of the outer periphery of the second air duct portion 112 to form a second air duct component 70. Optionally, both the first air duct component 60 and the second air duct component 70 can be integrally formed structural components.

[0089] Thus, during assembly, it is only necessary to place the first air duct component 60 and the second air duct component 70 inside the air duct 10, with the first air duct component 60 spaced apart in front of the second air duct component 70, and the first air guide wall 321 at least partially fitted around the outer periphery of the second air duct section 112. In this way, a third air duct 31 can be formed between the first air guide wall 321 and the second air guide wall 322, and a vent 123 can be formed between the first air duct section 111 and the second air duct section 112. This allows the third air duct 31 to be connected to the second air outlet 211 and the vent 123 respectively. Under the premise of ensuring the normal air outlet of the nursing device 100, the structure of the nursing device 100 can be made simpler and more reliable, and the assembly of the nursing device 100 can be facilitated.

[0090] Combination Figures 2-9 As shown, the nursing device 100 may also include a heating module 40, which is adapted to heat the main airflow 200. The heated main airflow 200 flows into the air duct 10 and merges with the secondary airflow 300 flowing out from the first air duct 12 to form a mixed airflow. The mixed airflow can then flow forward to the air outlet of the nursing device 100 to realize the air outlet of the nursing device 100 and meet the user's demand for hot air from the nursing device 100.

[0091] It is understandable that the heating module 40 heats the main airflow 200 to form a heated airflow with a higher temperature, while the secondary airflow 300 has a lower temperature because it has not been heated by the heating module 40.

[0092] Unlike existing technologies that combine and mix the higher-temperature heating airflow and the lower-temperature secondary airflow at the air outlet of the nursing device, this application combines and mixes the higher-temperature heating airflow and the lower-temperature secondary airflow 300 beforehand inside the air duct 10. This ensures that the heating airflow and the secondary airflow 300 are evenly mixed as they flow to the air outlet of the nursing device 100. This allows the user to experience a uniformly mixed airflow in terms of temperature and direction at the air outlet of the nursing device 100, thereby further improving user comfort and enhancing the user experience.

[0093] The heating module 40 includes, but is not limited to, ultra-thin sheet heaters, metal heating wires, PTC ceramics, etc. The selection can be made based on the actual application scenario, taking into account heating efficiency, wind resistance and installation method. No specific restrictions are imposed here.

[0094] In some embodiments of this invention, the heating module 40 may include multiple sheet-like heating elements 41, which are spaced apart circumferentially, where circumferential refers to the circumferential direction of the air duct 10. Thus, the heating module 40 can be formed by stacking multiple sheet-like heating elements axially, thereby reducing wind resistance while further uniformly heating the main airflow 200, improving heating efficiency, and ensuring accurate temperature control.

[0095] In other embodiments of this utility model, combined with Figure 13 As shown, the heating module 40 may include multiple sheet-like heating elements 41, which are spaced apart axially, where axial direction refers to the axial direction of the air duct 10. This also improves heating efficiency and ensures accurate temperature control, which will not be elaborated further here.

[0096] In some other embodiments of this utility model, the heating module 40 may include a plurality of sheet-like heating elements 41, which are spaced apart axially and circumferentially. Here, axial and circumferential refer to the axial and circumferential directions of the air duct 10, respectively. This can also improve heating efficiency and ensure the accuracy of temperature control, which will not be elaborated here.

[0097] In some other embodiments of this utility model, combined with Figure 12 As shown, the heating module 40 may include multiple sheet-like heating elements 41, which are arranged radially apart. Here, the radial direction is the radial direction of the air duct 10. This can also improve heating efficiency and ensure the accuracy of temperature control, which will not be elaborated here.

[0098] Combination Figures 2-11 As shown, the heating module 40 is at least partially located in the second air duct 21, so that the main airflow 200 must pass through the heating module 40 before flowing into the third air duct 31. This ensures that the heating module 40 heats the main airflow 200, preventing some of the main airflow 200 from flowing out of the third air duct 31 unheated, thereby ensuring precise control of the outlet air temperature of the nursing device 100 and improving the reliability of the nursing device 100. Furthermore, by setting up the third air duct and the heating module, the third air duct is connected between the first and second air ducts. This allows the main airflow and secondary airflow to converge and mix near the first air outlet or the outlet of the third air duct to form a mixed airflow, which then flows together to the outlet of the nursing device. This not only shortens the flow path of the main airflow, but also reduces the amount of high-temperature heating, insulation, and heat dissipation. Additionally, it reduces fluid loss or obstruction caused by changes in direction or passing through more components, improving airflow efficiency, reducing the difficulty of fluid and noise optimization, enhancing the user experience, and making the structure more compact, miniaturized, and lightweight.

[0099] Because the second air outlet of the second air duct after passing through the heating module is hidden in the duct wall where it is difficult for the user to directly access it, and the heating module is located at the junction of the handle and the air duct, it makes it safer for the user to use. For example, it is difficult for fingers, hair or other sharp objects to enter the second air duct and cause safety accidents.

[0100] Because of the aforementioned flow channel design, the outer wall of the blower does not directly contact the heated fluid, so that users will not feel overheated even when holding the blower. Even without any anti-scalding design near the outer wall of the blower, the possibility of burns or overheating will be greatly reduced.

[0101] Furthermore, this allows for more thorough heat diffusion within the air duct, extending the heating time of the main airflow 200 in the second and third air ducts 21 and 31. This not only ensures that the main airflow 200 is fully heated but also guarantees a more uniform temperature of the main airflow 200 flowing into the air duct 10, thereby improving the heating and airflow effects of the nursing device 100.

[0102] Furthermore, the heating module 40 located within the second air duct 21 is flat. Specifically, the second air duct 21 extends vertically. Outside air, under the action of the fan assembly 22, enters the second air duct 21 through the second air inlet 212 and flows upward to the second air outlet 211. By making the heating module 40 within the second air duct 21 flat, the structure of the heating module 40 within the second air duct 21 can be matched, making the flow of the main airflow 200 more stable and orderly, reducing noise and wind resistance. Optionally, the flat heating module 40 located within the second air duct 21 can extend vertically.

[0103] In some embodiments of this utility model, a heat insulation component is provided on the air guide wall 32, and at least a portion of the heat insulation component is provided with a heating module 40.

[0104] Specifically, considering that the heat from the heating module 40 can be transferred to the inside of the air duct 10 through heat transfer, resulting in heat accumulation, by setting a heat insulation component on the air guide wall 32, the high temperature impact on other components inside the air duct 10 can be avoided, as well as the user can be prevented from being burned by high temperature. This allows for further optimization of the structural design of the adapter 30 and even the nursing device 100, improving the reliability of the nursing device 100 and enhancing the user experience.

[0105] Furthermore, the heating module 40 can be disposed in at least part of the heat insulation component, for example, the heating module 40 can be disposed on the side of the heat insulation component facing the third air duct 31. This not only facilitates the placement of the heating module 40 without the need for a separate mounting bracket for the heating module 40, simplifying the structure of the nursing device 100, but also allows the heating module 40 to heat the main airflow 200 flowing along the air guide wall 32, ensuring heating efficiency and accurate temperature control.

[0106] Combination Figure 3 As shown, the heating module 40 is partially disposed in the third air duct 31, and the cross-sectional area of ​​this part of the heating module 40 gradually increases in the direction of gradually moving away from the second air outlet 211.

[0107] Specifically, the heating module 40 can be partially installed in the third air duct 31. This way, the main airflow 200 can be continuously heated by the heating module 40 after flowing into the third air duct 31, so that the main airflow 200 can flow out immediately after being heated. This not only makes it easier to control the outlet air temperature, but also reduces the heat loss of the heated main airflow 200 when it flows out, thereby improving the energy efficiency of the nursing device 100.

[0108] Furthermore, it can be understood that the cross-sectional area of ​​the third air duct 31 is larger than that of the first air duct 12 in the direction gradually moving away from the second air outlet 211. By making the cross-sectional area of ​​the heating module 40 located in the third air duct 31 gradually increase in the direction gradually moving away from the second air outlet 211, the structure of the heating module 40 located in the third air duct 31 can be matched with the structure of the third air duct 31.

[0109] By following the airflow direction without increasing or minimizing wind resistance, on the one hand, the heating time of the heating module 40 for the main airflow 200 can be extended, further ensuring sufficient heating of the main airflow 200 and improving the accuracy of temperature control. On the other hand, the heating module 40 can also restrict the flow path of the main airflow 200, forming a wider diffused airflow, which facilitates the mixing of the main airflow 200 with the secondary airflow 300 within the air duct 10, thereby improving the air outlet effect.

[0110] Combination Figure 9 , Figure 10 and Figure 13 As shown, this part of the heating module 40 extends forward. In this way, while ensuring the heating function of the heating module 40 for the main airflow 200, the structure of the heating module 40 can be simplified, and it also has a guiding function, which can make the flow of the main airflow 200 in the third air duct 31 more uniform and stable, and more accurately guide the main airflow 200 out of the third air duct 31, thereby further improving the accuracy of temperature control and further improving the air output effect.

[0111] In one embodiment of this utility model, combined with Figure 3 as well as Figures 8-11 As shown, heating modules 40 are arranged circumferentially within the third air duct 31. Here, circumferential refers to the circumferential direction of the air duct 10.

[0112] Specifically, it can be understood that whether the third air duct 31 is annular or only located at the lower part of the air duct 10, the third air duct 31 has a certain stroke in the circumferential direction of the air duct 10.

[0113] Considering that the main airflow 200 can flow in the third air duct 31, heat loss will occur during the flow of the main airflow 200. By setting multiple heating modules 40, which are circumferentially spaced within the third air duct 31, the heating modules 40 can heat the main airflow 200 at corresponding positions in the third air duct 31 without affecting the flow of the main airflow 200. This can compensate for the heat loss of the main airflow 200 during its flow, thereby ensuring precise control of the outlet air temperature of the nursing device 100 and improving the reliability of the nursing device 100.

[0114] Furthermore, unlike setting up a large, integrated heating module, by circumferentially arranging multiple heating modules 40 in the third air duct 31, while ensuring precise control of the outlet air temperature of the nursing device 100, it can not only reduce the heating loss of the nursing device 100, avoid energy waste, reduce the energy consumption of the nursing device 100, and improve the energy efficiency of the nursing device 100, but also reduce wind resistance and energy consumption.

[0115] It should be noted that among the multiple heating modules 40 arranged circumferentially within the third air duct 31, the structures of the multiple heating modules 40 can be the same or different. No specific limitation is made here.

[0116] In one specific embodiment of this utility model, combined with Figure 7 and Figure 9 As shown, both the adapter 30 and the vent 123 are annular. There are two heating modules 40. One of the two heating modules 40 is located at the lower part of the adapter 30 and corresponds to the second air outlet 211. The other is located at the upper part of the adapter 30. The two heating modules 40 are arranged vertically opposite each other.

[0117] Specifically, the heating module 40 is located at least at the lower part of the adapter 30 and corresponds to the second air outlet 211. The main airflow 200 is heated by the heating module 40 before flowing into the air duct 10. Considering the circumferential path of the adapter 30, the overall heat loss of the main airflow 200 within the adapter 30 is relatively small. However, considering that the distance between the upper position of the adapter 30 corresponding to the second air outlet 211 and the lower position of the adapter 30 corresponding to the second air outlet 211 is the greatest, the main airflow 200 experiences the greatest heat loss when flowing to the upper position of the adapter 30.

[0118] By placing one of the two heating modules 40 at the lower part of the adapter 30 and corresponding to the second air outlet 211, and placing the other of the two heating modules 40 at the upper part of the adapter 30, and arranging the two heating modules 40 opposite each other in the vertical direction, the heating module 40 located at the lower part can perform initial heating of the main airflow 200, while the heating module 40 located at the upper part can perform reheating of the main airflow 200 and the mixed airflow flowing upwards. This can compensate for the heat loss of the main airflow 200 and the mixed airflow during flow. Under the premise of ensuring precise control of the air outlet temperature of the nursing device 100, the number and placement of the heating modules 40 can be optimized, the energy consumption of the heating modules 40 can be reduced, and the wind resistance can be reduced, thereby improving the energy efficiency of the nursing device 100.

[0119] In some other embodiments of this utility model, the heating modules 40 are axially spaced within the third air duct 31, where circumferential refers to the circumferential direction of the air duct 10. This also ensures heating efficiency and reduces energy consumption, which will not be elaborated further here.

[0120] In some other embodiments of this invention, the heating modules 40 are arranged axially and circumferentially within the third air duct 31, where axial and circumferential refer to the axial and circumferential directions of the air duct 10, respectively. This also ensures heating efficiency and reduces energy consumption, which will not be elaborated further here.

[0121] Optionally, combined Figures 8-12 As shown, the heating module 40 is at least partially annular, and extends circumferentially within the adapter 30. Specifically, considering that both the adapter 30 and the vent 123 are annular, not only can the main airflow 200 flow out at any position circumferentially within the vent 123, but the mixed airflow can also re-enter the third air duct 31 through the vent 123 and then flow out again through the vent 123. By making the heating module 40 annular and extending circumferentially within the adapter 30, the shape of the heating module 40 can be matched with the shape of the adapter 30.

[0122] Thus, without affecting the flow of the main airflow 200 and the mixed airflow, the heating module 40 can continuously heat the main airflow 200 and the mixed airflow at the corresponding position in the third air duct 31, thereby compensating for the heat loss of the main airflow 200 and the mixed airflow during flow, thereby ensuring precise control of the outlet air temperature of the nursing device 100 and improving the reliability of the nursing device 100.

[0123] Furthermore, by setting a heating module 40 on the adapter 30, the setting of the heating module 40 can be made simpler and more convenient, which can facilitate the production and assembly of the nursing device 100.

[0124] Optionally, the heating module 40 is at least partially conical. This improves the accuracy of temperature control and the airflow effect while simplifying the structure of the heating module 40 and facilitating its manufacturing.

[0125] Optionally, combined Figure 3 As shown, the heating module 40 is at least partially flared. This improves the accuracy of temperature control and enhances the airflow effect, while also allowing the shape of the heating module 40 to better match the shapes of the second air duct 21 and the third air duct 31. Furthermore, it makes the flow of the main airflow 200 more stable and orderly, reducing noise and wind resistance.

[0126] In some embodiments of this utility model, the heating module 40 is at least partially disposed within the air duct 10 and located between the inner wall 13 and the air duct wall 11 of the air duct 10, and the heating module 40 at least partially constitutes the adapter 30. In this way, the heating function and the air guiding function of the heating module 40 can be integrated, which can reduce or even eliminate the setting of the adapter 30 and simplify the structure of the nursing device 100.

[0127] Furthermore, since the heating module 40 at least partially constitutes the adapter 30, in order to prevent the heat of the heating module 40 from being transferred to the inside of the air duct 10 and affecting the operation of other components inside the air duct 10, and to prevent the user from being burned by the high temperature of the air duct 10, a heat insulation component can also be provided in at least part of the adapter 30, which will not be elaborated here.

[0128] In some embodiments of this utility model, an air outlet grille is provided downstream of the third air duct 31. On the one hand, the main airflow 200 can flow into the air duct 10 through the air outlet grille, ensuring normal airflow from the care device 100. On the other hand, the air outlet grille can block the air outlet of the third air duct 31, which not only prevents foreign objects from entering the third air duct 31 and the second air duct 21, thus avoiding structural damage to the heating module 40 of the third air duct 31 or the fan assembly 22 in the second air duct 21, ensuring the structural reliability of the care device 100, but also prevents hair or items from being drawn into the third air duct 31 or the second air duct 21 when the user is using the care device 100, thus avoiding damage to the user and their items and improving the safety performance of the care device 100.

[0129] Optionally, the air outlet grille is at least partially an inclined air guide grille. When the main airflow 200 flows out from the third air duct 31, the inclined air guide grille can limit the flow path of the main airflow 200, thereby further guiding the main airflow 200 and ensuring that the main airflow 200 can flow stably and smoothly into the air duct 10. This facilitates its mixing with the secondary airflow 300, improves the orderliness and stability of the mixed airflow, and further enhances the working performance of the nursing device 100.

[0130] Furthermore, the design of the inclined air guide grille can simplify the structure of the air outlet grille and make its production and manufacturing simpler and more convenient.

[0131] Optionally, the air outlet grille is at least partially an arc-shaped air guide grille. When the main airflow 200 flows out from the third air duct 31, the arc-shaped air guide grille can limit the flow path of the main airflow 200, thereby further guiding the main airflow 200 and ensuring that the main airflow 200 can flow stably and smoothly into the air duct 10. This facilitates its mixing with the secondary airflow 300, improves the orderliness and stability of the mixed airflow, and further enhances the working performance of the nursing device 100.

[0132] Furthermore, the design of the arc-shaped air guide grille can further avoid local eddies in the main airflow 200 at the air outlet grille, further reduce noise and vibration caused by irregular flow, and thus further improve the working performance of the nursing device 100.

[0133] In actual production applications, the air outlet grille can be selectively set as an inclined air guide grille or an arc-shaped air guide grille according to different usage requirements; no specific limitation is made here.

[0134] In some embodiments of this utility model, combined with Figure 4As shown, a third air outlet 14 is at least partially provided at one end of the air duct 10. The third air outlet 14 is located between the inner wall 13 and the duct wall 11 of the air duct 10. The second air outlet 211 includes a first air outlet portion 2111 and a second air outlet portion 2112. The first air outlet portion 2111 is connected to the third duct 31, and the third air outlet 14 is connected to the second air outlet portion 2112. The third air outlet 14 can be located at the air outlet end in front of the air duct 10.

[0135] Specifically, the second air outlet 211 can include a first air outlet 2111 and a second air outlet 2112. After the outside air is drawn into the second air duct 21 by the fan assembly 22, it will be split when passing through the second air outlet 211. Part of the air will flow out through the first air outlet 2111, and the other part will flow out through the second air outlet 2112. Furthermore, it can be understood that the airflow flowing out of the second air outlet 211 is the main airflow 200. The airflow flowing out of the first air outlet 2111 can be further defined as the first main airflow 210, and the airflow flowing out of the second air outlet 2112 can be defined as the second main airflow 220.

[0136] Since the third air duct 31 is connected to the first air duct 12, and the first air duct 12 has a first air outlet 121 set in the air duct 10, by connecting the first air outlet 2111 to the third air duct 31, the first main airflow 210 can flow through the third air duct 31 into the air duct 10, and then converge and mix with the secondary airflow 300 in the air duct 10 to form a mixed airflow, which finally flows out from the air outlet in front of the nursing device 100, thereby ensuring the normal operation of the nursing device 100.

[0137] Furthermore, by providing at least a third air outlet 14 at one end of the air duct 10, located between the inner wall 13 and the duct wall 11 of the air duct 10, the third air outlet 14 is connected to the second air outlet 2112. This allows the second main airflow 220 to flow between the inner wall 13 and the duct wall 11 of the air duct 10 and ultimately exit from the third air outlet 14. In other words, air exits from the front end of the nursing device 100.

[0138] It is understandable that there is a high-speed secondary main airflow 220 near the third air outlet 14. Due to the Bernoulli effect, the pressure near the third air outlet 14 is low, forming a negative pressure. This can also draw the gas near the first air inlet 122 into the first air duct 12. Under the premise that a first-stage entrainment is formed near the inside of the air duct 10, a second-stage entrainment can be formed near the third air outlet 14, thereby drawing more outside air into the first air duct 12 to form a secondary airflow 300. Without changing the parameter settings of the fan assembly 22, the air volume of the nursing device 100 can be further increased, improving the working efficiency of the nursing device 100.

[0139] Furthermore, it is understandable that the third air outlet 14 is located on the outer periphery of the air duct wall 11. By adding the third air outlet 14, the air outlet area and air outlet range of the nursing appliance 100 can be increased, further enhancing the user experience.

[0140] Furthermore, the nursing device 100 may also include a circuit board, which can be electrically connected to electrical components such as the fan assembly 22 and the heating module 40 to control the operation of each electrical component. This allows for the coordination and management of various functions of the nursing device 100, ensuring the intelligence of the nursing device 100, facilitating user operation of the nursing device 100, and meeting user needs.

[0141] Optionally, the circuit board is located in the handle 20. This makes full use of the space in the handle 20 and ensures that the circuit board is located upstream of the heating airflow. This not only avoids the heating airflow from causing high temperatures to the circuit board, but also allows the cold airflow to ventilate and dissipate heat from the circuit board. This ensures that the circuit board operates in a suitable temperature environment, guarantees the stable operation of the circuit board, and ensures the overall reliability and safety of the nursing device 100.

[0142] Optionally, the circuit board is disposed inside the air duct 10 and located between the air duct wall 11 and the inner wall 13 of the air duct 10. This can make full use of the space inside the air duct 10, which not only allows the air duct 10 and the air duct wall 11 to cover and protect the circuit board, preventing damage to the circuit board structure, but also prevents the heating airflow from causing high temperature effects on the circuit board. This allows the circuit board to work in a suitable temperature environment, ensuring the stable operation of the circuit board and guaranteeing the overall reliability and safety of the nursing device 100.

[0143] Furthermore, to prevent the heat from the heating module 40 from being transferred to the circuit board inside the air duct 10 through the adapter 30, to ensure that the circuit board operates in a suitable temperature environment, and to prevent the user from being burned by the high temperature of the air duct 10, a heat insulation component can also be installed on the adapter 30, which will not be elaborated here.

[0144] Combination Figure 5 As shown, an electrical component 50 is provided at the end of the air duct 10. The electrical component 50 is located between the inner wall 13 and the duct wall 11 of the air duct 10. In this way, the electrical component 50 can make full use of the space between the inner wall 13 and the duct wall 11 of the air duct 10. The air duct 10 and the duct wall 11 can cover and protect the electrical component 50, which can not only avoid damage to the structure of the electrical component 50, but also prevent the electrical component 50 from being impacted by the high-temperature airflow, avoid overheating of the electrical component 50, and thus ensure the stable operation of the electrical component 50.

[0145] Optionally, the electrical component 50 may be at least partially exposed, thereby facilitating user identification and ensuring the normal operation of the electrical component 50.

[0146] Furthermore, it is understood that the electrical component 50 is suitable for meeting other user needs for blow-drying. Preferably, the electrical component 50 can be set at the air outlet of the blower 10. This not only makes it convenient for users to use the electrical component 50 while blow-drying, allowing users to solve multiple needs in one stop and saving user time, but also makes it easier for users to identify the air outlet and air inlet of the care device 100, with a foolproof effect, thereby further improving the user experience.

[0147] Among them, the electrical components 50 include, but are not limited to, one or more of the following: TOF sensor, accessory recognition sensor, NFC, essence module, accessory connection and installation device, thermal imaging, scalp health detection module, and light component. This enables the care device 100 to have more functions, such as: distance between the hair dryer 10 and the scalp, identification of different accessories of the care device 100, identification of the user client, diffusion of essence, accessory connection, thermal imaging, scalp health detection, light prompts, etc., which can meet the different usage needs of users in different scenarios and improve the user experience.

[0148] In the third aspect embodiment of this utility model, combined with Figure 14 As shown, the nursing device 100 may mainly include: a blower 10, a handle 20, and a blower assembly 22.

[0149] The air duct 10 is provided with an air duct wall 11, which is radially spaced from the inner wall 13 of the air duct 10. A first air duct 12 is formed inside the air duct wall 11. A first air outlet 121 and a first air inlet 122 are provided at both ends of the first air duct 12 in the front-to-back direction. The front end of the air duct 10 is provided with a single outlet 15 for the nursing device 100. A handle 20 is connected to the lower side of the air duct 10. A second air duct 21 is formed inside the handle 20. A second air outlet 211 and a second air inlet 212 are provided at both ends of the second air duct 21 in the up-down direction. A fan assembly 22 is provided inside the second air duct 21. The first air duct 12 and the second air duct 21 converge inside the air duct 10 and discharge the nursing device 100 from the single outlet 15. A heating module 40 is used to heat the air in the second air duct 21 and / or the first air duct 12.

[0150] Specifically, the hair dryer 10 can be used to blow air. By connecting the handle 20 to the lower side of the hair dryer 10, the user can hold the handle 20 and operate the care device 100 to direct the hair dryer 10 towards the user's hair or object to blow air, thus meeting the user's needs for drying substances (such as paint and hair) and cleaning or peeling surface layers.

[0151] Specifically, by providing an air duct wall 11 inside the air duct 10, with the air duct wall 11 and the inner wall 13 of the air duct 10 being radially spaced apart, and the adapter 30 being provided inside the air duct 10 and at least partially located between the inner wall 13 of the air duct 10 and the air duct wall 11, the air duct wall 11 and the inner wall 13 of the air duct 10 can define an installation space, which can be used to install other electrical components of the nursing device 100.

[0152] Furthermore, a first air duct 12 is formed inside the air duct wall 11, a second air duct 21 is formed inside the handle 20, a fan assembly 22 is provided inside the second air duct 21, and a unique outlet 15 for the nursing device 100 is provided at the front end of the air duct 10. The first air duct 12 and the second air duct 21 converge inside the air duct 10 and discharge the nursing device 100 from the unique outlet 15.

[0153] When the user uses the nursing device 100, the fan assembly 22 operates. Outside air is first drawn into the second air duct 21 by the fan assembly 22, and then flows out from the second air duct 21 into the interior of the air duct 10. Furthermore, when the gas flows out through the second air duct 21 into the interior of the air duct 10, the gas velocity near the outlet of the second air duct 21 is relatively high. Due to the Bernoulli effect, the air pressure near this location is low, which can draw air from near the first air inlet 122 of the first air duct 12 into the first air duct 12.

[0154] For ease of understanding and explanation, the airflow passing through the fan assembly 22 is defined as the main airflow 200, and the airflow not passing through the fan assembly 22 is defined as the secondary airflow 300. It can be understood that the airflow passing through the second air duct 21 and flowing into the air duct 10 is the main airflow 200, and the airflow flowing into the air duct 10 from the first air outlet 121 of the first air duct 12 is the secondary airflow 300.

[0155] In this way, the main airflow 200 and the secondary airflow 300 can converge and mix inside the air duct 10 to form a mixed airflow, and then flow together to the single outlet 15 at the front end of the nursing device 100 and out. This makes the structure of the nursing device 100 simpler, and not only allows the main airflow 200 and the secondary airflow 300 to have enough travel to mix, ensuring uniform mixing, but also prevents various fluids from becoming turbulent at the single outlet 15, and makes the airflow of the nursing device 100 more concentrated, thereby improving the airflow effect and enhancing the user experience.

[0156] Furthermore, the secondary airflow 300 is generated due to the Bernoulli effect, not the fan assembly 22. That is, without changing the parameter settings of the fan assembly 22, the air volume of the nursing device 100 can be increased, thereby improving the working efficiency of the nursing device 100. Further, this also facilitates the installation of a smaller fan assembly 22, making the structure of the nursing device 100 more compact, reducing its size, and lowering its power consumption.

[0157] Combination Figure 14 As shown, the nursing device 100 may further include: a connector 30, a first air outlet 121 located inside the air duct 10, the connector 30 being disposed inside the air duct 10 and at least partially located between the inner wall 13 and the air duct wall 11 of the air duct 10, a third air duct 31 being formed at the connector 30, the third air duct 31 being connected to the second air outlet 211 and the first air outlet 121 respectively.

[0158] In this way, the main airflow 200 of the second air duct 21 can flow into the air duct 10 under the restriction and guidance of the third air duct 31, and merge with the secondary airflow 300 flowing out from the first air outlet 121 of the first air duct 12 inside the air duct 10. This makes the merging of the main airflow 200 and the secondary airflow 300 inside the air duct 10 simpler and more reliable, and can optimize the structural design of the nursing device 100.

[0159] Combination Figure 14 As shown, the nursing device 100 may further include a heating module 40, which is at least partially disposed in the second air duct 21. This allows the main airflow 200 to be heated by the heating module 40 before flowing into the air duct 10, forming a heated airflow. The heated airflow can converge and mix with the secondary airflow 300 to form a mixed airflow, which can then flow further to the first air outlet 121 to deliver hot air from the nursing device 100, thus meeting the user's need for hot air from the nursing device 100.

[0160] The heating module is located in the second air duct, and is not near the outlet of the nursing device. Therefore, when the nursing device is used with styling accessories, the distance between the accessories and the heating module prevents the accessories from overheating due to hot air or heat radiation, thus avoiding burns to the user. Furthermore, the front end of the nursing device typically has a magnetic or metal ring to secure the styling accessories; the fact that the heating module is not near the outlet also prevents the magnetic or metal ring on the front end of the device from overheating, thus avoiding burns to the user.

[0161] It is understandable that the heating module 40 heats the main airflow 200 to form a heated airflow with a higher temperature, while the secondary airflow 300 has a lower temperature because it has not been heated by the heating module 40.

[0162] By pre-collecting and mixing the higher-temperature heating airflow and the lower-temperature secondary airflow 300 inside the air duct 10, the heating airflow and the secondary airflow 300 can be evenly mixed as they flow to the single outlet 15. This results in a more uniform temperature of the mixed airflow, allowing the user to experience a uniformly heated airflow at the single outlet 15, thereby further improving user comfort and enhancing the user experience.

[0163] In some embodiments of this utility model, the duct wall 11 is provided with a retractable air nozzle corresponding to the unique outlet 15 to adjust the air volume or air direction of the unique outlet 15.

[0164] Specifically, in actual use, users will have different requirements for the blower depending on the actual application scenario, such as air volume and air direction.

[0165] By installing a retractable air nozzle at the sole outlet 15 and connecting the nozzle to the outlet 15, airflow can be further diverted through the nozzle when it reaches the outlet 15. Users can adjust the ventilation area and stroke of the nozzle by controlling its extension length, and adjust the ventilation direction by controlling its rotation.

[0166] In this way, users can adjust the air volume, air velocity, and air direction of the air nozzle simply by operating it. This allows for the adjustment of the air volume, air velocity, or air direction of the nursing device 100, which can enrich the air output effect of the nursing device 100 and meet the user's needs in different scenarios, thereby improving the user experience.

[0167] Optionally, the air nozzle can be detachably mounted on the air duct wall 11, so that users can selectively use the air nozzle to blow air according to their needs, or remove the air nozzle and directly use the nursing device 100 to blow air, thereby further meeting different user needs.

[0168] Alternatively, the air nozzle can be fixedly connected to the air duct wall 11 to ensure the reliability of the connection between the air nozzle and the air duct wall 11 and to prevent the air nozzle from falling or being lost unintentionally by the user.

[0169] Furthermore, it is understandable that the air nozzle is compressible, so that when not in use, the air nozzle can be compressed to reduce its size, making it easier to store. Even if the air nozzle is fixedly connected to the air duct wall 11, the space occupied by the air nozzle can be reduced, or even the air nozzle can be hidden, ensuring the neatness of the nursing instrument 100 and facilitating its storage.

[0170] It should be noted that the nursing device 100 may also include an electronic storage unit containing a temperature control program. This allows for the separate detection and calibration of the airflow temperatures at the first air outlet 121, the second air outlet 211, and the single outlet 15, and further controls the operation of the heating module 40. This prevents heat loss during the flow of the mixed airflow towards the single outlet 15 from affecting the temperature of the mixed airflow at the single outlet 15 of the nursing device 100, thereby ensuring that the outlet temperature is the same as and constant and controllable as the user's preset temperature, thus guaranteeing the user's experience.

[0171] In the above embodiments, by setting a third air duct and a heating module, the third air duct is connected between the first air duct and the second air duct. In this way, the main airflow and the secondary airflow can converge and mix near the first air outlet or the outlet of the third air duct to form a mixed airflow, and then flow together to the outlet of the nursing device. This not only shortens the flow path of the main airflow, but also reduces the amount of high-temperature heating, insulation and heat dissipation, and fluid loss or obstruction caused by changing direction or passing through more components. This improves air outlet efficiency, reduces the difficulty of fluid and noise optimization, enhances the user experience, and makes the structure more compact, miniaturized and lightweight.

[0172] Because the second air outlet of the second air duct after passing through the heating module is hidden in the duct wall where it is difficult for the user to directly access it, and the heating module is located at the junction of the handle and the air duct, it makes it safer for the user to use. For example, it is difficult for fingers, hair or other sharp objects to enter the second air duct and cause safety accidents.

[0173] Because of the aforementioned flow channel design, the outer wall of the blower does not directly contact the heated fluid, so that users will not feel overheated even when holding the blower. Even without any anti-scalding design near the outer wall of the blower, the possibility of burns or overheating will be greatly reduced.

[0174] Specifically, the temperature control program varies depending on the mode, room temperature, or air nozzle used, which will not be elaborated here.

[0175] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0176] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0177] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A nursing appliance, characterized in that, include: A ventilation duct, wherein a duct wall is provided inside the ventilation duct, the duct wall and the inner wall of the ventilation duct are arranged radially at intervals, a first duct is formed inside the duct wall, and a first air outlet and a first air inlet are provided at both ends of the first duct in the front-rear direction, and an outlet is provided at the front end of the ventilation duct. A handle is connected to the lower side of the air duct. A second air duct is formed inside the handle. The two ends of the second air duct in the vertical direction are respectively provided with a second air outlet and a second air inlet. The fan assembly is disposed within the second air duct; Heating module, the heating module being used to heat the air in the second air duct and / or the first air duct; An adapter is disposed inside the air duct and is at least partially located between the inner wall of the air duct and the wall of the air duct. The adapter has a third air duct, which is connected to the second air outlet and the first air outlet respectively, so as to guide the air in the second air duct to the first air outlet through the third air duct.

2. A nursing appliance, characterized in that, include: A ventilation duct, wherein a duct wall is provided inside the ventilation duct, the duct wall and the inner wall of the ventilation duct are radially spaced apart, a first duct is formed inside the duct wall, and a first air outlet and a first air inlet are provided at both ends of the first duct in the front-rear direction, the first air outlet is located inside the ventilation duct, and an outlet is provided at the front end of the ventilation duct. A handle is connected to the lower side of the air duct. A second air duct is formed inside the handle. The two ends of the second air duct in the vertical direction are respectively provided with a second air outlet and a second air inlet. The fan assembly is disposed within the second air duct; Heating module, the heating module being used to heat the air in the second air duct and / or the first air duct; An adapter is disposed inside the air duct and is at least partially located between the inner wall of the air duct and the wall of the air duct. The adapter has a third air duct, which is connected to the second air outlet and the first air outlet.

3. The nursing appliance according to claim 2, characterized in that, The adapter includes two air guide walls that are spaced apart from each other in the front-to-back direction, forming the third air duct between the two air guide walls, and the two air guide walls extend forward.

4. The nursing appliance according to claim 3, characterized in that, Both of the aforementioned air guide walls are arranged in a ring shape; and / or Both of the aforementioned air guide walls are located at the lower part of the air duct and are both sheet-like.

5. The nursing appliance according to claim 3, characterized in that, The air duct wall is provided with a ventilation opening, through which the third air duct is connected to the second air outlet and the first air outlet.

6. The nursing appliance according to claim 5, characterized in that, The ventilation opening is annular and circumferentially arranged on the side of the air duct wall.

7. The nursing appliance according to claim 2, characterized in that, The nursing device also includes a heating module, which is at least partially located in the second air duct.

8. The nursing appliance according to claim 7, characterized in that, The heating module includes multiple sheet-like heating elements, which are spaced apart axially and / or circumferentially.

9. The nursing appliance according to claim 7, characterized in that, A heat insulation component is provided on the air guide wall, and at least a portion of the heat insulation component is provided with the heating module.

10. The nursing appliance according to claim 7, characterized in that, The heating module is partially disposed within the third air duct, and its cross-sectional area gradually increases in the direction that moves away from the second air outlet.

11. The nursing appliance according to claim 10, characterized in that, This heating module extends forward.

12. The nursing appliance according to claim 10, characterized in that, The heating modules are spaced apart axially and / or circumferentially within the third air duct.

13. The nursing appliance according to claim 7 or 11, characterized in that, The heating module located in the second air duct is flat.

14. The nursing appliance according to claim 2, characterized in that, It also includes a heating module, which is at least partially disposed inside the air duct and located between the inner wall of the air duct and the wall of the air passage, and the heating module at least partially constitutes the adapter.

15. The nursing appliance according to claim 2, characterized in that, An air outlet grille is installed downstream of the third air duct.

16. The nursing appliance according to claim 15, characterized in that, The air outlet grille is at least partially an inclined air guide grille; and / or the air outlet grille is at least partially an arc-shaped air guide grille, to further guide the air in the third air duct.

17. The nursing appliance according to claim 2, characterized in that, At least a third air outlet is provided at one end of the air duct. The third air outlet is located between the inner wall of the air duct and the wall of the air passage. The second air outlet includes a first air outlet and a second air outlet. The first air outlet is connected to the third air passage, and the third air outlet is connected to the second air outlet.

18. The nursing appliance according to claim 2, characterized in that, It also includes a circuit board disposed in the handle; and / or The circuit board is disposed inside the air duct and located between the air duct wall and the inner wall of the air duct.

19. A nursing appliance, characterized in that, include: The air duct has an air duct wall inside, which is radially spaced from the inner wall of the air duct. A first air duct is formed inside the air duct wall. A first air outlet and a first air inlet are opened at both ends of the first air duct in the front-rear direction. The front end of the air duct has the only outlet of the nursing device. A handle is connected to the lower side of the air duct, and a second air duct is formed inside the handle. A second air outlet and a second air inlet are respectively provided at both ends of the second air duct in the vertical direction. The fan assembly is disposed within the second air duct; Heating module, the heating module being used to heat the air in the second air duct and / or the first air duct; The first and second air ducts merge within the air duct and discharge the care device from the single outlet.

20. The nursing appliance according to claim 19, characterized in that, Also includes: The adapter has a first air outlet located inside the air duct. The adapter is disposed inside the air duct and is at least partially located between the inner wall of the air duct and the wall of the air duct. A third air duct is formed at the adapter and is connected to the second air outlet and the first air outlet respectively.

21. The nursing appliance according to claim 19, characterized in that, Also includes: A heating module, which is at least partially disposed in the second air duct.

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