Nursing appliance

Abstract

The invention 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, a first air outlet and a first air inlet are formed in the first air duct, 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] The present invention relates to the technical field of hair dryers, and more particularly to a care appliance. Background Art

[0002] As a common personal care appliance, a hair dryer is used for various purposes, such as drying substances (such as paint and hair) and cleaning or stripping surface layers. The hair dryer is provided with a blower and an air duct. The blower sucks external air into the air duct and then outputs a high-speed air flow to meet different needs of users.

[0003] In the related art, the air duct design of the hair dryer is not reasonable enough, and the high-speed air flow output at the air outlet of the hair dryer is prone to problems such as disorder and uneven temperature, resulting in poor air outlet effect, and poor comfort and user experience of users. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, an object of the present invention is to provide a care appliance, the air outlet of which is more stable and smooth, and more uniform and orderly. It is more difficult for users to touch the high-temperature part, making the use safer. At the same time, because there are fewer high-temperature heating parts, the heat insulation and heat dissipation parts are synchronously reduced, and the structure is more compact, smaller and lighter. The care appliance according to the first aspect embodiment of the present invention includes: a barrel, a duct wall is provided inside the barrel, the duct wall is spaced from the inner wall of the barrel in the radial direction, a first air duct is formed inside the duct wall, and a first air outlet and a first air inlet that are communicated are provided at both ends of the first air duct in the front-rear direction; a handle, the handle is connected to the lower side of the barrel, a second air duct is formed inside the handle, and a second air outlet and a second air inlet that are communicated are respectively provided at both ends of the second air duct in the up-down direction; a blower assembly, the blower assembly is provided in the second air duct; an adapter, the adapter is provided in the barrel and at least partially located between the inner wall of the barrel and the duct wall; wherein, a third air duct is formed at the adapter, and the third air duct is respectively communicated with the second air outlet and the first air outlet to guide the air in the second air duct to the first air outlet through the third air duct. The nursing device according to an embodiment of the second aspect of the present invention includes: a hair dryer, a wind duct wall is arranged inside the hair dryer, the wind duct wall is arranged at a radial interval from the inner wall of the hair dryer, a first air duct is formed inside the wind duct wall, both ends of the first air duct in the front-back direction are provided with a communicated first air outlet and a first air inlet, and the first air outlet is located inside the hair dryer; a handle, the handle is connected to the lower side of the hair dryer, a second air duct is formed inside the handle, and both ends of the second air duct in the up-down direction are respectively provided with a communicated second air outlet and a second air inlet; a fan assembly, the fan assembly is arranged inside the second air duct; an adapter, the adapter is arranged inside the hair dryer and at least partially located between the inner wall of the hair dryer and the wind duct wall; wherein, a third air duct is formed at the adapter, and the third air duct is respectively communicated with the second air outlet and the first air outlet.

[0005] Thus, by making the first air outlet located inside the hair dryer and making the third air duct communicate between the first air duct and the second air duct, the main air flow and the secondary air flow can be collected and mixed in advance inside the hair dryer, and then flow together to the air outlet end in front of the nursing device. This can not only shorten the flow path of the main air flow, make the flow of the main air flow more stable and smooth, but also make the main air flow and the secondary air flow mix evenly during the process of flowing to the air outlet end of the nursing device, so that the user feels the evenly mixed air flow at the air outlet end of the nursing device.

[0006] In some examples of the present invention, the adapter includes two guiding walls arranged at a relative interval in the front-back direction, the third air duct is formed between the two guiding walls, and the two guiding walls extend forward.

[0007] In some examples of the present invention, both of the two guiding walls are arranged in a ring shape; and / or both of the two guiding walls are arranged at the lower part of the hair dryer and are both in a sheet shape.

[0008] In some examples of the present invention, the wind duct wall is provided with a ventilation opening, and through the ventilation opening, the third air duct is communicated with the second air outlet and the first air outlet.

[0009] In some examples of the present invention, the ventilation opening is in a ring shape and is circumferentially arranged around the side part of the wind duct wall.

[0010] In some examples of the present invention, the nursing device further includes a heating module, and at least part of the heating module is located in the second air duct.

[0011] In some examples of the present invention, the heating module includes a plurality of sheet-shaped heating sheets, and the plurality of sheet-shaped heating sheets are arranged at intervals in the axial direction and / or the circumferential direction.

[0012] In some examples of the present invention, a heat insulation component is provided on the air guiding wall, and at least part of the heat insulation component is provided with the heating module.

[0013] In some examples of the present invention, part of the heating module is arranged in the third air duct, and in the direction gradually away from the second air outlet, the cross-sectional area of this part of the heating module gradually increases.

[0014] In some examples of the present invention, this part of the heating module extends forward.

[0015] In some examples of the present invention, the heating modules are arranged at intervals axially and / or circumferentially in the third air duct.

[0016] In some examples of the present invention, the heating module located in the second air duct is in a flat plate shape.

[0017] In some examples of the present invention, the care appliance further includes a heating module, and at least part of the heating module is arranged in the air duct and located between the inner wall of the air duct and the air duct wall, and at least part of the heating module constitutes the adapter.

[0018] In some examples of the present invention, an air outlet grille is provided at the downstream of the third air duct.

[0019] In some examples of the present invention, at least part of the air outlet grille is an inclined air guiding grille; and / or at least part of the air outlet grille is an arc-shaped air guiding grille to further guide the air in the third air duct.

[0020] In some examples of the present invention, at least part of one end of the air duct corresponding to the first air outlet is provided with a third air outlet, the third air outlet is located between the inner wall of the air duct and the air duct wall, the second air outlet includes a first air outlet part and a second air outlet part, the first air outlet part is communicated with the third air duct, and the third air outlet is communicated with the second air outlet part.

[0021] In some examples of the present invention, the care appliance further includes a circuit board, and the circuit board is arranged in the handle; and / or the circuit board is arranged in the air duct and located between the air duct wall and the inner wall of the air duct.

[0022] The nursing appliance according to the third aspect embodiment of the present invention includes: a hair dryer, a wind duct wall is provided inside the hair dryer, the wind duct wall is spaced apart from the inner wall of the hair dryer in the radial direction, a first air duct is formed inside the wind duct wall, both ends of the first air duct in the front-back direction are provided with a first air outlet and a first air inlet that are communicated, and the front end of the hair dryer is provided with the only outlet of the nursing appliance; a handle, the handle is connected to the lower side of the hair dryer, a second air duct is formed inside the handle, and a second air outlet and a second air inlet are respectively provided at both ends of the second air duct in the up-down direction; a fan assembly, the fan assembly is arranged in the second air duct; the first air duct and the second air duct converge inside the hair dryer and discharge from the only outlet of the nursing appliance.

[0023] In some examples of the present invention, the nursing appliance further includes: an adapter, the first air outlet is located inside the hair dryer, the adapter is arranged inside the hair dryer and at least partially located between the inner wall of the hair dryer and the wind duct wall, a third air duct is formed at the adapter, and the third air duct is respectively communicated with the second air outlet and the first air outlet.

[0024] In some examples of the present invention, the nursing appliance further includes: a heating module, at least part of the heating module is arranged in the second air duct.

[0025] Thus, by providing the third air duct and the heating module, the third air duct is communicated between the first air duct and the second air duct, so that the main air flow and the secondary air flow can converge and mix near the first air outlet or the outlet of the third air duct to form a mixed air flow, and then flow to the outlet of the nursing appliance together. This can not only shorten the flow path of the main air flow, but also reduce the high-temperature heating part, synchronously reduce the heat insulation and heat dissipation parts, and reduce the fluid loss or obstruction caused by the fluid changing direction or passing through more components, improve the air outlet efficiency, reduce the difficulty of optimizing the fluid and noise, enhance the user experience, and make the structure more compact, miniaturized and lightweight.

[0026] Since the second air outlet of the second air duct passing through the heating module is hidden in the wind duct wall that is difficult for users to directly touch, and the heating module is located at the joint of the handle and the hair dryer, it makes the user use safer. For example, it is difficult for fingers, hair or other sharp objects to enter the second air duct and cause safety accidents.

[0027] Due to the above-mentioned flow path setting, the outer wall of the hair dryer does not directly contact the heated fluid, so that the user will not feel overheated even when holding the hair dryer by hand, and even without any anti-scald design near the outer wall of the hair dryer, the possibility of scalding or overheating will be greatly reduced. The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0028] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, in which: Figure 1 is a schematic diagram of a nursing device according to a first embodiment of the present invention; Figure 2 is a schematic diagram of a nursing device according to a second embodiment of the present invention; Figure 3 is a cross-sectional view of a nursing device according to a second embodiment of the present invention; Figure 4 is a schematic diagram of a nursing device according to a third embodiment of the present invention; Figure 5 is a schematic diagram of a nursing device according to a fourth embodiment of the present invention; Figure 6 is a side view of a nursing device according to a fourth embodiment of the present invention; Figure 7 is a cross-sectional view of a nursing device according to a fourth embodiment of the present invention along the A-A direction; Figure 8 is a top view of a nursing device according to a fourth embodiment of the present invention; Figure 9 is a cross-sectional view of a nursing device according to a fourth embodiment of the present invention along the B-B direction; Figure 10 is a cross-sectional view of a nursing device according to a fifth embodiment of the present invention; Figure 11 is an exploded view of a nursing device according to a fifth embodiment of the present invention; Figure 12 is a schematic diagram of a heating module according to an embodiment of the present invention; Figure 13 is a schematic diagram of another heating module according to an embodiment of the present invention; Figure 14 is a schematic diagram of a nursing device according to a sixth embodiment of the present invention.

[0029] Reference numerals: 100, nursing device; 200, main air flow; 210, first main air flow; 220, second main air flow; 300, secondary air flow; 10, air duct; 11, air duct wall; 111, first air duct part; 112, second air duct part; 12, first air duct; 121, first air outlet; 122, first air inlet; 123, ventilation opening; 13, inner wall; 14, third air outlet; 15, sole outlet; 20. Handle; 21. Second air duct; 211. Second air outlet; 2111. First air outlet part; 2112. Second air outlet part; 212. Second air inlet; 22. Fan assembly; 30. Adapter; 31. Third air duct; 32. Air guiding wall; 321. First air guiding wall; 322. Second air guiding wall; 40. Heating module; 41. Sheet heating element; 50. Electrical component; 60. First air duct part; 70. Second air duct part. Detailed implementation manners

[0030] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention will be described in detail below.

[0031] Below, refer to Figures 1-14 Describe the care appliance 100 according to an embodiment of the present invention.

[0032] In the first aspect embodiment of the present invention, in combination with Figure 1 As shown, the care appliance 100 according to the present invention includes: a hair dryer barrel 10, a handle 20, a fan assembly 22, and an adapter 30.

[0033] Among them, an air duct wall 11 is provided inside the hair dryer barrel 10. The air duct wall 11 is spaced apart from the inner wall 13 of the hair dryer barrel 10 in the radial direction. A first air duct 12 is formed inside the air duct wall 11. The two ends of the first air duct 12 in the front-rear direction are respectively provided with a communicating first air outlet 121 and a first air inlet 122. The handle 20 is connected to the lower side of the hair dryer barrel 10. A second air duct 21 is formed inside the handle 20. The two ends of the second air duct 21 in the up-down direction are respectively provided with a second air outlet 211 and a second air inlet 212. The fan assembly 22 is disposed inside the second air duct 21.

[0034] Moreover, the adapter 30 is disposed inside the hair dryer barrel 10 and at least partially located between the inner wall 13 of the hair dryer barrel 10 and the air duct wall 11. Among them, a third air duct 31 is formed at the adapter 30. The third air duct 31 is respectively communicated with the second air outlet 211 and the first air outlet 121 to guide a part of the air in the second air duct 21 to the first air outlet 121 through the third air duct 31.

[0035] Specifically, the hair dryer barrel 10 can be used for air outlet. By connecting the handle 20 to the lower side of the hair dryer barrel 10, the user can hold the handle 20 and, by operating the care appliance 100, make the hair dryer barrel 10 direct air towards the user's hair or an object, meeting the user's usage requirements for drying substances (such as paint and hair) and cleaning or peeling the surface layer, etc.

[0036] Specifically, by providing an air duct wall 11 inside the air duct 10, the air duct wall 11 is spaced apart from the inner wall 13 of the air duct 10 in the radial direction, and the adapter 30 is 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. In this way, the air duct wall 11, the inner wall 13 of the air duct 10, and the adapter 30 can define an installation space, and other electrical components of the care appliance 100 can be installed in this installation space.

[0037] Moreover, 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.

[0038] When the user uses the care appliance 100, the fan assembly 22 operates. The outside air can be first sucked into the second air duct 21 under the action of the fan assembly 22, and then, under the restriction and guidance of the third air duct 31, further flows out of the third air duct 31 and flows towards the first air outlet 121. Moreover, the gas flow rate near the first air outlet 121 is relatively high. Due to the Bernoulli effect, the air pressure near this position is relatively low, and the air near the first air inlet 122 of the first air duct 12 can be entrained into the first air duct 12 and then flow out from the first air outlet 121.

[0039] For the convenience of understanding and description, the air flow passing through the fan assembly 22 is now defined as the main air flow 200, and the air flow not passing through the fan assembly 22 is defined as the secondary air flow 300. It can be understood that the air flow passing through the second air duct 21 is the main air flow 200, and the air flow flowing out from the first air outlet 121 of the first air duct 12 is the secondary air flow 300. It can be understood that the generation of the secondary air flow 300 is due to the existence of the Bernoulli effect, rather than the fan assembly 22.

[0040] In this way, the main air flow 200 and the secondary air flow 300 converge and flow out at the first air outlet 121. In this way, on the premise of ensuring that the air outlet function of the care appliance 100 can be realized, without changing the parameter settings of the fan assembly 22, the air volume of the care appliance 100 can be increased, and the working efficiency of the care appliance 100 can be improved. Further, under the same air volume requirement, it is also convenient to install a smaller fan assembly 22, which can make the structure of the care appliance 100 more compact, reduce the volume of the care appliance 100, and lower the power consumption of the care appliance 100.

[0041] In the second aspect embodiment of the present invention, in combination with Figures 2-11 As shown, the care appliance 100 according to the present invention includes: an air duct 10, a handle 20, a fan assembly 22, and an adapter 30.

[0042] Among them, an air duct wall 11 is arranged inside the air duct 10. The air duct wall 11 is arranged at a radial interval from the inner wall 13 of the air duct 10. A first air duct 12 is formed inside the air duct wall 11. The two ends of the first air duct 12 in the front and rear directions are respectively provided with a communicated first air outlet 121 and a first air inlet 122. The handle 20 is connected to the lower side of the air duct 10. A second air duct 21 is formed inside the handle 20. The two ends of the second air duct 21 in the up and down directions are respectively provided with a second air outlet 211 and a second air inlet 212. The fan assembly 22 is arranged inside the second air duct 21. The first air outlet 121 is located inside the air duct 10.

[0043] Moreover, the adapter 30 is arranged 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. Among them, a third air duct 31 is formed at the adapter 30. The third air duct 31 is respectively communicated with the second air outlet 211 and the first air outlet 121.

[0044] Specifically, the air duct 10 can be used for air outlet. By connecting the handle 20 to the lower side of the air duct 10, the user can hold the handle 20 and, by operating the care appliance 100, make the air duct 10 direct air at the user's hair or an object, meeting the user's usage requirements for drying substances (such as paint and hair) and cleaning or stripping the surface layer, etc.

[0045] Specifically, by arranging the air duct wall 11 inside the air duct 10, with the air duct wall 11 arranged at a radial interval from the inner wall 13 of the air duct 10, and the adapter 30 arranged 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, in this way, the air duct wall 11, the inner wall 13 of the air duct 10, and the adapter 30 can define an installation space, and other electrical components of the care appliance 100 can be installed in this installation space.

[0046] Moreover, a first air duct 12 is formed inside the air duct wall 11, a second air duct 21 is formed inside the handle 20, the fan assembly 22 is arranged inside the second air duct 21, and a third air duct 31 is formed inside the adapter 30. By making the third air duct 31 be respectively communicated with the second air outlet 211 of the second air duct 21 and the first air outlet 121 of the first air duct 12, in this way, the third air duct 31 or the outlet of the third air duct 31 can be respectively located downstream of the first air duct 12 and the second air duct 21, and the first air duct 12 and the second air duct 21 can be communicated through the third air duct 31. And since the first air outlet 121 is located inside the air duct 10 and the third air duct 31 is also communicated with the first air outlet 121, the outlet of the third air duct 31 is also located inside the air duct 10.

[0047] When the user uses the care appliance 100, the fan assembly 22 operates. The outside air can be first inhaled into the second air duct 21 under the action of the fan assembly 22, and then flows out from the third air duct 31 to the inside of the air cylinder 10, that is, the front side of the first air outlet 121, under the restriction and guidance of the third air duct 31. Moreover, the gas flow velocity near the air outlet of the third air duct 31 is relatively high. Due to the Bernoulli effect, the air pressure near this position is relatively low, and the air near the first air inlet 122 of the first air duct 12 can be entrained into the first air duct 12.

[0048] For the convenience of understanding and explanation, the air flow passing through the fan assembly 22 is now defined as the main air flow 200, and the air flow not passing through the fan assembly 22 is defined as the secondary air flow 300. It can be understood that the air flow passing through the second air duct 21 and the third air duct 31 in sequence and flowing into the inside of the air cylinder 10 is the main air flow 200, and the air flow flowing into the inside of the air cylinder 10 from the first air outlet 121 of the first air duct 12 is the secondary air flow 300.

[0049] In this way, the main air flow 200 and the secondary air flow 300 can be collected and mixed in advance inside the air cylinder 10 to form a mixed air flow, and then flow together to the air outlet end in front of the care appliance 100 and flow out. In this way, on the premise of ensuring that the high-speed mixed air flow can be blown out to realize the air outlet function of the care appliance 100, not only can the flow path of the main air flow 200 be shortened, making the flow of the main air flow 200 more stable and smooth, but also the main air flow 200 and the secondary air flow 300 can have enough travel to mix, so that the heated air flow and the secondary air flow 300 can be mixed evenly during the process of flowing to the air outlet end of the care appliance 100, which is convenient for rectification. Thus, the user can feel the evenly mixed air flow at the air outlet end of the care appliance 100, and various fluids can be prevented from being disordered or having uneven temperature at the air outlet end of the care appliance 100, thereby further improving the air outlet effect of the care appliance 100, making the air outlet more uniform and orderly, enhancing the comfort of the user, and improving the user experience.

[0050] Moreover, the generation of the secondary air flow 300 is due to the existence of the Bernoulli effect, rather than the fan assembly 22, that is: without changing the parameter settings of the fan assembly 22, the air volume of the care appliance 100 can be increased, and the working efficiency of the care appliance 100 can be improved. Further, this also facilitates the installation of a smaller fan assembly 22, can make the structure of the care appliance 100 more compact, reduce the volume of the care appliance 100, and reduce the power consumption of the care appliance 100.

[0051] Thus, by arranging 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 air flow 200 and the secondary air flow 300 can converge and mix inside the air duct 10 in advance to form a mixed air flow, and then flow together to the air outlet end in front of the care appliance 100 and flow out. This can not only shorten the flow path of the main air flow 200, making the flow of the main air flow 200 more stable and smooth, but also make the main air flow 200 and the secondary air flow 300 mix evenly during the process of flowing to the air outlet end of the care appliance 100, so that the user can feel the air flow after uniform mixing of cold and heat at the air outlet end of the care appliance 100.

[0052] As shown in combination with Figures 2-11 the adapter 30 may include two air guiding walls 32 arranged at intervals in the front-rear direction. A third air duct 31 is formed between the two air guiding walls 32, and both of the two air guiding walls 32 extend forward.

[0053] Specifically, by making the adapter 30 mainly include two air guiding walls 32 arranged at intervals in the air duct 10, and connecting the radial one end of the air guiding wall 32 to the inner wall 13 of the air duct 10 and connecting the radial other end of the air guiding wall 32 to the air duct wall 11, a third air duct 31 can be formed between the two air guiding walls 32.

[0054] Moreover, by arranging both of the two air guiding walls 32 to extend forward, the two air guiding walls 32 can define the flow path of the air flow. Under the restriction of the two air guiding walls 32, the air flow can flow forward, so that the guiding effect of the third air duct 31 on the main air flow 200 can be realized, making the flow of the main air flow 200 more stable and smooth and making the flow of the main air flow 200 more uniform and orderly.

[0055] Furthermore, as shown in combination with Figures 2-11 the air duct wall 11 is provided with a ventilation opening 123. Through the ventilation opening 123, the third air 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 air duct 31. And since the ventilation opening 123 is opened on the air duct wall 11 and the first air outlet 121 is located inside the air duct 10, the ventilation opening 123 is naturally connected to the first air outlet 121. In this way, the connection between the third air duct 31 and the first air outlet 121 can be realized through the setting of the ventilation opening 123. The main air flow 200 of the second air duct 21 can enter the third air duct 31 through the second air outlet 211, and then enter the air duct 10 through the ventilation duct to converge and mix with the secondary air flow 300 flowing out from the first air outlet 121.

[0056] Optionally, as shown in combination with Figures 2-11As shown, both of the two air guiding walls 32 are arranged in a ring shape. Specifically, the two air guiding walls 32 can be arranged in a ring shape, so that the whole adapter 30 is in a ring shape, the third air duct 31 is in a ring shape, and the third air duct 31 is circumferentially arranged around the outer side of the air duct wall 11, so that the air inlet of the third air duct 31 is at least partially communicated with the second air outlet 211.

[0057] Furthermore, the air 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 air vent 123 are correspondingly communicated in the circumferential direction, and the third air duct 31 is arranged to be open circumferentially towards the inner circumference of the air cylinder 10.

[0058] On the one hand, after the main air flow 200 passes through the second air outlet 211, it can not only directly flow out from directly above the second air outlet 211 into the interior of the air cylinder 10, but also flow circumferentially under the limitation of the third air duct 31, and then flow out through the air vent 123, that is: the main air flow 200 can flow out at any circumferential position of the air vent 123, which can increase the air outlet area of the main air flow 200 at the air vent 123, make the outflow of the main air flow 200 more stable and orderly, reduce the disorder when the main air flow 200 and the secondary air flow 300 converge, and thus can improve the working performance of the care appliance 100.

[0059] On the other hand, when the main air flow 200 flowing into the interior of the air cylinder 10 and the secondary air flow 300 flowing out from the first air duct 12 converge and mix, the mixed air flow can also enter the third air duct 31 again through the air vent 123, and then flow out through the air vent 123 again, so that the mixing of the main air flow 200 and the secondary air flow 300 can be more uniform and efficient, and thus can further improve the working performance of the care appliance 100.

[0060] Optionally, both of the two air guiding walls 32 are arranged at the lower part of the air cylinder 10 and are in a sheet shape. Correspondingly, the air vent 123 is also arranged at the lower side of the air duct wall 11 and corresponds to the second air outlet 211 in the up-down direction, and the adapter 30 is arranged between the air vent 123 and the second air outlet 211.

[0061] In this way, the adapter 30 can be connected between the circumference of the air vent 123 and the circumference of the second air outlet 211, which can ensure that the main air flow 200 flowing out from the second air outlet 211 directly flows upward towards the air vent 123 under the limitation of the adapter 30, and further directly flows upward through the air vent 123 into the interior of the air cylinder 10.

[0062] On the one hand, the flow path of the main air flow 200 can be shortened, which can not only make the flow of the main air flow 200 more stable and smooth, reduce the obstruction caused by components that may be arranged in the middle of the flow path, and facilitate the mixing between the main air flow 200 and the secondary air flow 300. On the other hand, the structures of the adapter 30 and the ventilation opening 123 can be made simpler and more reliable.

[0063] In addition, in some embodiments of the present invention, in combination with Figure 2 and Figure 4 as shown, the cross-section of the air guiding wall 32 is at least partially arc-shaped, and the opening of the arc-shaped surface faces the side away from the first air inlet 122. It should be noted that the cross-section here is a section that is simultaneously parallel to the up-down direction and the front-back direction. In this way, the air guiding wall 32 can be at least partially an arc-shaped plate, and the air flow can flow forward along the arc-shaped plate. In this way, not only can the air flow closely adhere to the arc-shaped plate to form a wider diffusion air flow, which is convenient for the mixing of the main air flow 200 and the secondary air flow 300 at the ventilation opening 123, but also the air flow separation can be reduced, and the collision of the two air flows to generate turbulence or local eddy currents can be avoided, reducing the working noise and the fluid velocity, as well as the disorder of the wind direction.

[0064] Moreover, in some other embodiments of the present invention, in combination with Figure 9 as shown, the cross-section of the air guiding wall 32 is at least partially an inclined plane, and in the direction gradually approaching the ventilation opening 123, the distance between the inclined plane and the first air inlet 122 gradually increases. It should be noted that the cross-section here is a section that is simultaneously parallel to the up-down direction and the front-back direction. In this way, the air guiding wall 32 can be at least partially an inclined straight plate, and the air flow can flow forward along the inclined straight plate. In this way, not only can the flow velocity of the main air flow 200 in the third air duct 31 be ensured, and the air outlet direction of the main air flow 200 in the third air duct 31 be accurately controlled, but also the structure of the air guiding wall 32 is simple, which is convenient for the production and manufacturing of the air guiding wall 32.

[0065] Furthermore, in some embodiments of the present invention, in combination with Figure 10 and Figure 11 as shown, the two air guiding walls 32 are respectively defined as a first air guiding wall 321 and a second air guiding wall 322. The air duct wall 11 may include: a first air duct portion 111 and a second air duct portion 112. And, connect the first air guiding wall 321 to the outer peripheral end of the first air duct portion 111 to form a first air duct member 60. And, sleeved and connected the second air guiding wall 322 to the middle of the outer periphery of the second air duct portion 112 to form a second air duct member 70. Optionally, both the first air duct member 60 and the second air duct member 70 can be set as integrally formed structural members.

[0066] Thus, during assembly, it is only necessary to dispose the first air duct member 60 and the second air duct member 70 within the air duct 10, with the first air duct member 60 disposed at intervals in front of the second air duct member 70, and the first air guiding wall 321 at least partially sleeved on the outer periphery of the second air duct portion 112. In this way, a third air duct 31 can be formed between the first air guiding wall 321 and the second air guiding wall 322, and a ventilation opening 123 can be formed between the first air duct portion 111 and the second air duct portion 112, so as to achieve the communication between the third air duct 31 and the second air outlet 211 and the ventilation opening 123 respectively. On the premise of ensuring the normal air outlet of the care appliance 100, the structure of the care appliance 100 can be made simpler and more reliable, and the assembly of the care appliance 100 can be facilitated.

[0067] Combined with Figures 2-9 As shown, the care appliance 100 may further include a heating module 40, which is adapted to heat the main air flow 200. The heated main air flow 200 flows into the air duct 10 and converges and mixes with the secondary air flow 300 flowing out of the first air duct 12 to form a mixed air flow, and then the mixed air flow can further flow forward to the air outlet end of the care appliance 100 to achieve the air outlet of the care appliance 100, meeting the user's demand for hot air outlet of the care appliance 100.

[0068] It can be understood that the heating module 40 heats the main air flow 200 to form a heated air flow, which has a relatively high temperature, while the secondary air flow 300 has a relatively low temperature because it has not been heated by the heating module 40.

[0069] Different from the prior art in which the heated air flow with a relatively high temperature and the secondary air flow with a relatively low temperature are converged and mixed at the air outlet end of the care appliance, in this application, the heated air flow with a relatively high temperature and the secondary air flow 300 are converged and mixed in advance within the air duct 10. In this way, the heated air flow and the secondary air flow 300 can be mixed evenly during the process of flowing to the air outlet end of the care appliance 100, so that the user can feel an air flow with uniform temperature, direction, etc. at the air outlet end of the care appliance 100, thereby further improving the user's comfort and enhancing the user's experience.

[0070] Among them, the heating module 40 includes but is not limited to ultra-thin laminar heaters, metal heating wires, PTC ceramics, etc., which can be selected according to the actual application scenario considering the heating efficiency, air resistance, and installation method, and no specific limitation is made here.

[0071] In some embodiments of the present invention, the heating module 40 may include a plurality of sheet-shaped heating elements 41, which are circumferentially spaced apart. Here, the circumferential direction refers to the circumferential direction of the air duct 10. In this way, the heating module 40 can be formed by axially laminating a plurality of sheet-shaped heating elements. Thus, on the premise of reducing wind resistance, the main air flow 200 can be further uniformly heated, the heating efficiency can be improved, and the accuracy of temperature control can be ensured.

[0072] In some other embodiments of the present invention, as shown in Figure 13 the heating module 40 may include a plurality of sheet-shaped heating elements 41, which are axially spaced apart. Here, the axial direction refers to the axial direction of the air duct 10. This can also improve the heating efficiency and ensure the accuracy of temperature control, which will not be elaborated here.

[0073] In some other embodiments of the present invention, the heating module 40 may include a plurality of sheet-shaped heating elements 41, which are axially and circumferentially spaced apart. Here, the axial and circumferential directions respectively refer to the axial and circumferential directions of the air duct 10. This can also improve the heating efficiency and ensure the accuracy of temperature control, which will not be elaborated here.

[0074] In still some other embodiments of the present invention, as shown in Figure 12 the heating module 40 may include a plurality of sheet-shaped heating elements 41, which are radially spaced apart. Here, the radial direction is the radial direction of the air duct 10. This can also improve the heating efficiency and ensure the accuracy of temperature control, which will not be elaborated here.

[0075] As shown in Figures 2-11 the heating module 40 is at least partially located in the second air duct 21. In this way, before the main air flow 200 flows into the third air duct 31, it needs to pass through the heating module 40 first. This can ensure the heating of the main air flow 200 by the heating module 40, avoid the situation that part of the main air flow 200 flows out of the third air duct 31 without being heated, and thus can ensure the precise control of the air outlet temperature of the care appliance 100 and improve the reliability of the care appliance 100. Moreover, by setting the third air duct 31 and the heating module 40, the third air duct 31 is communicated between the first air duct 12 and the second air duct 21. In this way, the main air flow 200 and the secondary air flow 300 can converge and mix near the first air outlet 121 or the outlet of the third air duct 31 to form a mixed air flow, and then flow together to the outlet of the care appliance 100. This can not only shorten the flow path of the main air flow 200, but also reduce the heat insulation and heat dissipation parts because there are fewer high-temperature heating parts. At the same time, the fluid loss or obstruction caused by the fluid changing direction or passing through more components is less, the air outlet efficiency is improved, the difficulty of optimizing the fluid and noise is reduced, the user experience is improved, and the structure is more compact, miniaturized and lightweight.

[0076] Since the second air outlet 211 of the second air duct 21 passing through the heating module 40 is hidden in the duct wall 11 which is difficult for users to directly touch, and the heating module 40 is located at the joint of the handle 20 and the hair dryer barrel 10, it makes the user's use safer. For example, it is difficult for fingers, hair or other sharp objects to enter the second air duct 21, causing safety accidents.

[0077] Due to the above-mentioned flow channel arrangement, the outer wall of the hair dryer barrel 10 does not directly contact the heated fluid, so that the user will not feel overheated even when holding the hair dryer barrel 10. Even without any anti-scald design near the outer wall of the hair dryer barrel 10, the possibility of scalding or overheating will be greatly reduced.

[0078] Moreover, this can also make the heat spread more fully in the air duct, extending the heating time of the main air flow 200 in the second air duct 21 and the third air duct 31. It can not only ensure that the main air flow 200 is fully heated, but also ensure that the temperature of the main air flow 200 flowing into the hair dryer barrel 10 is more uniform, thereby improving the heating effect and air outlet effect of the care appliance 100.

[0079] Furthermore, the heating module 40 located in the second air duct 21 is in a flat plate shape. Specifically, the second air duct 21 extends in the up and down direction. Under the action of the fan assembly 22, the outside air enters the second air duct 21 from the second air inlet 212 and then flows upward to the second air outlet 211. By making the heating module 40 in the second air duct 21 in a flat plate shape, this can make the heating module 40 in the second air duct 21 match the structure of the second air duct 21, make the flow of the main air flow 200 more stable and orderly, and reduce the noise and air resistance. Optionally, the flat plate-shaped heating module 40 located in the second air duct 21 can be extended in the up and down direction.

[0080] In some embodiments of the present invention, a heat insulation component is provided on the air guide wall 32, and at least a part of the heat insulation component is provided with the heating module 40.

[0081] Specifically, considering that the heat of the heating module 40 can be transferred to the inside of the hair dryer barrel 10 by heat conduction, resulting in heat accumulation, by providing a heat insulation component on the air guide wall 32, this can avoid causing high temperature effects on other components inside the hair dryer barrel 10 and avoid scalding users with high temperature, thereby further optimizing the structural design of the adapter 30 and even the care appliance 100, improving the reliability of the care appliance 100, and enhancing the user experience.

[0082] Further, the heating module 40 can be disposed on at least a part of the heat insulation assembly. For example, the heating module 40 is disposed on one side of the heat insulation assembly facing the third air duct 31. This can not only facilitate the installation of the heating module 40 without the need to additionally provide a mounting bracket for the heating module 40, simplifying the structure of the care appliance 100, but also enable the heating module 40 to heat the main air flow 200 flowing along the air guiding wall 32, ensuring the heating efficiency and the accuracy of temperature control.

[0083] Combined with Figure 3 As shown, a part of the heating module 40 is disposed in the third air duct 31, and in the direction gradually away from the second air outlet 211, the cross-sectional area of this part of the heating module 40 gradually increases.

[0084] Specifically, a part of the heating module 40 can be disposed in the third air duct 31, so that the main air flow 200 can also be continuously heated by the heating module 40 after flowing into the third air duct 31. Thus, the main air flow 200 can flow out immediately after being heated, which can not only facilitate the control of the air outlet temperature more conveniently, but also reduce the heat loss of the heated main air flow 200 when flowing out, improving the energy efficiency of the care appliance 100.

[0085] Further, it can be understood that in the direction gradually away from the second air outlet 211, the cross-sectional area of the third air duct 31 is larger than that of the first air duct 12. By making the cross-sectional area of the heating module 40 located in the third air duct 31 gradually increase in the direction gradually 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.

[0086] On the premise of conforming to the air flow direction and not increasing or less increasing the air resistance, on the one hand, the heating time of the heating module 40 for the main air flow 200 can be extended, further ensuring the full heating of the main air flow 200 and improving the accuracy of temperature control. On the other hand, the heating module 40 can also limit the flow path of the main air flow 200, forming a wider diffusion air flow, facilitating the mixing of the main air flow 200 with the secondary air flow 300 in the air duct 10 and improving the air outlet effect.

[0087] Combined with Figure 9 、 Figure 10 and Figure 13 As shown, this part of the heating module 40 extends forward. In this way, on the premise of ensuring the heating function of the heating module 40 for the main air flow 200, the structure of the heating module 40 can be simple, and it also has a guiding function, enabling the main air flow 200 to flow more uniformly and stably in the third air duct 31, and guiding the main air flow 200 more accurately out of the third air duct 31, thereby further improving the accuracy of temperature control and further improving the air outlet effect.

[0088] In one embodiment of the present invention, in combination with Figure 3 and Figures 8-11 As shown, the heating modules 40 are circumferentially spaced within the third air duct 31. Here, the circumferential direction refers to the circumferential direction of the air duct 10.

[0089] Specifically, it can be understood that whether the third air duct 31 is annular or the third air duct 31 is only provided 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.

[0090] Considering that the main air flow 200 can flow in the third air duct 31 and heat loss will occur during the flow of the main air flow 200. By arranging multiple heating modules 40 to be circumferentially spaced within the third air duct 31, on the premise of not affecting the flow of the main air flow 200, the heating modules 40 can heat the main air flow 200 at corresponding positions in the third air duct 31, thereby compensating for the heat loss of the main air flow 200 during the flow, and thus ensuring the precise control of the air outlet temperature of the care appliance 100 and improving the reliability of the care appliance 100.

[0091] Moreover, different from arranging a large-volume integral heating module, by arranging multiple heating modules 40 to be circumferentially spaced within the third air duct 31, on the premise of ensuring the precise control of the air outlet temperature of the care appliance 100, not only can the heating loss of the care appliance 100 be reduced, energy waste can be avoided, the energy consumption of the care appliance 100 can be reduced, and the energy consumption of the care appliance 100 can be improved, but also the air resistance can be reduced and the energy consumption can be reduced.

[0092] It should be noted that among the multiple heating modules 40 circumferentially spaced 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.

[0093] In a specific embodiment of the present invention, in combination with Figure 7 and Figure 9 As shown, the adapter 30 and the ventilation opening 123 are both annular, there are two heating modules 40, one of the two heating modules 40 is arranged below the adapter 30 and corresponds to the second air outlet 211, and the other is arranged above the adapter 30, and the two heating modules 40 are arranged vertically opposite to each other.

[0094] Specifically, the heating module 40 is at least disposed at the lower part of the adapter 30 and corresponds to the second air outlet 211. Before the main air flow 200 flows into the interior of the air duct 10, it will be heated by the heating module 40. Considering the circumferential path of the adapter 30, the overall heat loss of the main air flow 200 in the adapter 30 is relatively small. Also considering 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, the distance between them is the farthest. When the main air flow 200 flows to the upper position of the adapter 30, there is the largest heat loss.

[0095] By disposing one of the two heating modules 40 at the lower part of the adapter 30 and corresponding to the second air outlet 211, disposing the other of the two heating modules 40 at the upper part of the adapter 30, and relatively disposing the two heating modules 40 in the vertical direction, the heating module 40 located at the lower part can initially heat the main air flow 200, and the heating module 40 located at the upper part can re-heat the main air flow 200 and the mixed air flow flowing to the upper part, so as to make up for the heat loss of the main air flow 200 and the mixed air flow during the flow. On the premise of ensuring the precise control of the air outlet temperature of the care appliance 100, the number and installation position of the heating module 40 can be optimized, the energy consumption of the heating module 40 can be reduced, and the air resistance can be reduced, thereby improving the energy efficiency of the care appliance 100.

[0096] In some other embodiments of the present invention, the heating modules 40 are axially spaced in the third air duct 31, wherein the circumferential direction here refers to the circumferential direction of the air duct 10. This can also ensure the heating efficiency and reduce the energy consumption, which will not be elaborated here.

[0097] In still some other embodiments of the present invention, the heating modules 40 are axially and circumferentially spaced in the third air duct 31, wherein the axial direction and the circumferential direction here respectively refer to the axial direction and the circumferential direction of the air duct 10. This can also ensure the heating efficiency and reduce the energy consumption, which will not be elaborated here either.

[0098] Optionally, as shown in Figures 8-12 the heating module 40 is at least partially annular, and the heating module 40 extends circumferentially in the adapter 30. Specifically, considering that after the adapter 30 and the ventilation opening 123 are both annular, not only can the main air flow 200 flow out at any circumferential position of the ventilation opening 123, but also the mixed air flow can enter the third air duct 31 again through the ventilation opening 123 and then flow out through the ventilation opening 123 again. By making the heating module 40 annular and extending the heating module 40 circumferentially in the adapter 30, the shape of the heating module 40 can be matched with the shape of the adapter 30.

[0099] In this way, without affecting the flow of the main air stream 200 and the mixed air stream, the heating module 40 can continuously heat the main air stream 200 and the mixed air stream at corresponding positions in the third air duct 31, thereby compensating for the heat loss of the main air stream 200 and the mixed air stream during flow, and thus ensuring precise control of the air outlet temperature of the care appliance 100 and improving the reliability of the care appliance 100.

[0100] Moreover, by arranging the heating module 40 on the adapter 30, the arrangement of the heating module 40 can also be made simpler and more convenient, which is conducive to the production and assembly of the care appliance 100.

[0101] Optionally, at least a part of the heating module 40 is conical. In this way, on the premise of improving the accuracy of temperature control and the air outlet effect, the structure of the heating module 40 can be made simpler, which is conducive to the production and manufacture of the heating module 40.

[0102] Optionally, as shown in combination Figure 3 At least a part of the heating module 40 is trumpet-shaped. In this way, on the premise of improving the accuracy of temperature control and the air outlet effect, the shape of the heating module 40 can be made more matching with the shapes of the second air duct 21 and the third air duct 31, so that the flow of the main air stream 200 can be more stable and orderly, reducing noise and air resistance.

[0103] In some embodiments of the present invention, at least a part of the heating module 40 is arranged in the air duct 10 and located between the inner wall 13 of the air duct 10 and the air duct wall 11, and at least a part of the heating module 40 constitutes the adapter 30. In this way, the integration of the heating function and the flow guiding function of the heating module 40 can be realized, so that the setting of the adapter 30 can be reduced or even eliminated, simplifying the structure of the care appliance 100.

[0104] Furthermore, since at least a part of the heating module 40 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 scalded by the high temperature of the air duct 10, a heat insulation component can also be arranged on at least a part of the adapter 30, which will not be elaborated here.

[0105] In some embodiments of the present invention, an air outlet grille is provided downstream of the third air duct 31, so that on the one hand, the main airflow 200 can flow into the air duct 10 through the air outlet grille to ensure the normal air outlet of the care device 100, and on the other hand, the air outlet grille can shield the air outlet of the third air duct 31, which can not only prevent foreign matter from entering the third air duct 31 and the second air duct 21, causing structural damage to components such as the heating module 40 of the third air duct 31 or the fan assembly 22 in the second air duct 21, but also ensure the structural reliability of the care device 100, and can also prevent the user's hair or objects from being drawn into the third air duct 31 or the second air duct 21 when using the care device 100, thereby avoiding damage to the user and his or her objects, and improving the safety performance of the care device 100.

[0106] Optionally, the air outlet grille is at least partially an inclined air guide grille, so that 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 achieving further guidance of the main airflow 200, ensuring that the main airflow 200 can flow stably and smoothly into the air duct 10, and then facilitating its mixing with the secondary airflow 300, thereby improving the orderliness and stability of the mixed airflow, and further enhancing the working performance of the care device 100.

[0107] Furthermore, the design of the inclined air guide grille can also make the structure of the air outlet grille simpler, making the production of the air outlet grille simpler and more convenient.

[0108] Optionally, the air outlet grille is at least partially an arc-shaped air guide grille, so that 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 achieving further guidance of the main airflow 200, ensuring that the main airflow 200 can flow stably and smoothly into the air duct 10, and then facilitating its mixing with the secondary airflow 300, thereby improving the orderliness and stability of the mixed airflow, and further enhancing the working performance of the care device 100.

[0109] Furthermore, the design of the arc-shaped air guide grille can further avoid local vortices of the main airflow 200 at the air outlet grille, and can further reduce noise and vibration caused by irregular flow, thereby further improving the working performance of the care device 100.

[0110] In actual production applications, the air outlet grille can be selectively set to an inclined air guide grille or an arc-shaped air guide grille according to different usage requirements, which is not specifically limited here.

[0111] In some embodiments of the present invention, Figure 4As shown, at least a part of one end of the air duct 10 is provided with a third air outlet 14. The third air outlet 14 is located between the inner wall 13 of the air duct 10 and the air duct wall 11. The second air outlet 211 includes a first air outlet part 2111 and a second air outlet part 2112. The first air outlet part 2111 is communicated with the third air duct 31, and the third air outlet 14 is communicated with the second air outlet part 2112. Among them, the third air outlet 14 can be arranged at the air outlet end in front of the air duct 10.

[0112] Specifically, the second air outlet 211 can be made to include a first air outlet part 2111 and a second air outlet part 2112. After the outside air is sucked into the second air duct 21 by the fan assembly 22, it will be split when passing through the second air outlet 211. One part flows out through the first air outlet part 2111, and the other part flows out through the second air outlet part 2112. And it can be understood that the air flowing out from the second air outlet 211 is the main air flow 200. The air flow flowing out from the first air outlet part 2111 can be further defined as the first main air flow 210, and the air flow flowing out from the second air outlet part 2112 is the second main air flow 220.

[0113] Since the third air duct 31 is communicated with the first air duct 12, and the first air duct 12 has a first air outlet 121 arranged in the air duct 10. By connecting the first air outlet part 2111 with the third air duct 31, the first main air flow 210 can flow into the air duct 10 through the third air duct 31, and then converge and mix with the secondary air flow 300 in the air duct 10 and finally flow out from the air outlet end in front of the care appliance 100, so as to ensure the normal operation of the care appliance 100.

[0114] Moreover, by at least partially arranging a third air outlet 14 at one end of the air duct 10, the third air outlet 14 is located between the inner wall 13 of the air duct 10 and the air duct wall 11, and the third air outlet 14 is communicated with the second air outlet part 2112, so that the second main air flow 220 can flow between the inner wall 13 of the air duct 10 and the air duct wall 11 and finally flow out from the third air outlet 14. That is: air is discharged from the front end of the care appliance 100.

[0115] It can be understood that there is a second main air flow 220 with high-speed flow near the third air outlet 14. Due to the Bernoulli effect, the pressure near the third air outlet 14 is relatively low, forming a negative pressure. In this way, the gas near the first air inlet 122 can also be sucked into the first air duct 12. On the premise of forming a primary entrainment near the air duct 10, a secondary entrainment can be formed near the third air outlet 14, so that more outside air can be entrained into the first air duct 12 to form the secondary air flow 300. Without changing the parameter settings of the fan assembly 22, the air volume of the care appliance 100 can be further increased, and the working efficiency of the care appliance 100 can be improved.

[0116] Moreover, it can be understood 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 the air outlet range of the care appliance 100 can be increased, and further, the user experience can be improved.

[0117] Furthermore, the care appliance 100 may further 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, so as to coordinate and manage the various functions of the care appliance 100, ensure the intelligence of the care appliance 100, facilitate the user's operation of the care appliance 100, and meet the user's usage requirements.

[0118] Optionally, the circuit board is arranged in the handle 20. In this way, the space in the handle 20 can be fully utilized, and it can be ensured that the circuit board is located upstream of the heating air flow. This can not only avoid the high temperature impact of the heating air flow on the circuit board, but also enable the cold air flow to ventilate and dissipate heat from the circuit board, so as to ensure that the circuit board works in a suitable temperature environment, ensure the stable operation of the circuit board, and ensure the overall reliability and safety of the care appliance 100.

[0119] Optionally, the circuit board is arranged in the air duct 10 and located between the air duct wall 11 and the inner wall 13 of the air duct 10. In this way, the space in the air duct 10 can be fully utilized. Not only can the air duct 10 and the air duct wall 11 play a role in covering and protecting the circuit board to avoid damage to the circuit board structure, but also the high temperature impact of the heating air flow on the circuit board can be avoided, so that the circuit board can work in a suitable temperature environment, ensure the stable operation of the circuit board, and ensure the overall reliability and safety of the care appliance 100.

[0120] Moreover, to prevent the heat of the heating module 40 from being transferred to the circuit board inside the air duct 10 through the adapter 30, ensure that the circuit board works in a suitable temperature environment, and avoid scalding the user by the high temperature of the air duct 10, a heat insulation component can also be provided on the adapter 30, which will not be elaborated here.

[0121] Combined 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 of the air duct 10 and the air duct wall 11. In this way, the electrical component 50 can make full use of the space between the inner wall 13 of the air duct 10 and the air duct wall 11, and the air duct 10 and the air duct wall 11 can play a role in covering and protecting the electrical component 50. Not only can the damage to the structure of the electrical component 50 be avoided, but also the electrical component 50 can be prevented from being impacted by the high temperature air flow and overheating, so as to ensure the stable operation of the electrical component 50.

[0122] Optionally, the electrical component 50 can be at least partially exposed, so as to facilitate the user's identification and ensure the normal operation of the electrical component 50.

[0123] Moreover, it can be understood that the electrical component 50 is adapted to meet other hair-drying use requirements of the user. Preferably, the electrical component 50 can be arranged at the air outlet end of the hair dryer 10. This can not only facilitate the user to use the electrical component 50 while drying the hair, enabling the user to solve multiple needs in one stop when drying the hair, saving the user's usage time, but also facilitate the user to identify the air outlet and air inlet of the care appliance 100, having an anti-fooling effect, thereby further enhancing the user's usage experience.

[0124] Among them, the electrical component 50 includes but is not limited to one or more of a TOF sensor, an accessory identification sensor, NFC, an essence module, an accessory connection and installation device, a thermal imaging device, a scalp health detection module, and a lighting component, etc., so that the care appliance 100 can have more functions. For example, functions such as the distance between the hair dryer 10 and the scalp, identifying different accessories of the care appliance 100, identifying the user's client, diffusing essence, accessory connection, thermal imaging, scalp health detection, and lighting reminder can meet the different usage needs of the user in different scenarios and enhance the user's usage experience.

[0125] In the embodiment of the third aspect of the present invention, as shown in Figure 14 the care appliance 100 mainly includes: a hair dryer 10, a handle 20, and a fan assembly 22.

[0126] Among them, an air duct wall 11 is arranged inside the hair dryer 10. The air duct wall 11 is spaced apart from the inner wall 13 of the hair dryer 10 in the radial direction. A first air duct 12 is formed inside the air duct wall 11. The two ends of the first air duct 12 in the front-back direction are provided with a communicating first air outlet 121 and a first air inlet 122. The front end of the hair dryer 10 is provided with the only outlet 15 of the care appliance 100. The handle 20 is connected to the lower side of the hair dryer 10. A second air duct 21 is formed inside the handle 20. The two ends of the second air duct 21 in the up-down direction are respectively provided with a second air outlet 211 and a second air inlet 212. The fan assembly 22 is arranged inside the second air duct 21. The first air duct 12 and the second air duct 21 converge inside the hair dryer 10 and are discharged from the only outlet 15 of the care appliance 100.

[0127] Specifically, the hair dryer 10 can be used for air outlet. By connecting the handle 20 to the lower side of the hair dryer 10, the user can hold the handle 20 and, by operating the care appliance 100, make the hair dryer 10 blow air towards the user's hair or an object to meet the user's usage requirements for drying substances (such as paint and hair) and cleaning or stripping the surface layer, etc.

[0128] Specifically, by providing an air duct wall 11 inside the air duct 10, the air duct wall 11 is spaced apart from the inner wall 13 of the air duct 10 in the radial direction, and the adapter 30 is 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. In this way, the air duct wall 11 and the inner wall 13 of the air duct 10 can define an installation space, and other electrical components of the care appliance 100 can be installed in this installation space.

[0129] Moreover, 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 in the second air duct 21, and a sole outlet 15 of the care appliance 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 care appliance 100 from the sole outlet 15.

[0130] When the user uses the care appliance 100, the fan assembly 22 operates, and the outside air can be first inhaled into the second air duct 21 under the action of the fan assembly 22 and then flow out from the second air duct 21 into the interior of the air duct 10. Moreover, when the gas flows out from the second air duct 21 into the interior of the air duct 10, the gas flow velocity near the air outlet of the second air duct 21 is relatively high. Due to the Bernoulli effect, the air pressure near this position is relatively low, and the air near the first air inlet 122 of the first air duct 12 can be entrained into the first air duct 12.

[0131] For the convenience of understanding and explanation, the air flow passing through the fan assembly 22 is now defined as the main air flow 200, and the air flow not passing through the fan assembly 22 is defined as the secondary air flow 300. It can be understood that the air flow passing through the second air duct 21 and flowing into the interior of the air duct 10 is the main air flow 200, and the air flow flowing into the interior of the air duct 10 from the first air outlet 121 of the first air duct 12 is the secondary air flow 300.

[0132] In this way, the main air flow 200 and the secondary air flow 300 can converge and mix inside the air duct 10 to form a mixed air flow, and then flow together to the sole outlet 15 at the front end of the care appliance 100 and flow out. This can make the structure of the care appliance 100 simpler. Not only can the main air flow 200 and the secondary air flow 300 have sufficient travel to mix and ensure uniform mixing, and then flow out from the sole outlet 15, but also it can avoid the disorder of various fluids at the sole outlet 15, and the air outlet of the care appliance 100 can be more concentrated, thereby improving the air outlet effect and enhancing the user experience.

[0133] Moreover, the generation of the secondary air flow 300 is due to the existence of the Bernoulli effect, rather than the fan assembly 22. That is, without changing the parameter settings of the fan assembly 22, the air volume output of the care appliance 100 can be increased, and the working efficiency of the care appliance 100 can be improved. Further, this also facilitates the installation of a smaller fan assembly 22, which can make the structure of the care appliance 100 more compact, reduce the volume of the care appliance 100, and lower the power consumption of the care appliance 100.

[0134] As shown in Figure 14 , the care appliance 100 may further include: an adapter 30. The first air outlet 121 is located inside the air duct 10. The adapter 30 is disposed 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. A third air duct 31 is formed at the adapter 30. The third air duct 31 is respectively communicated with the second air outlet 211 and the first air outlet 121.

[0135] In this way, the main air flow 200 of the second air duct 21 can flow into the interior of the air duct 10 under the restriction and guidance of the third air duct 31, and converge with the secondary air flow 300 flowing out from the first air outlet 121 of the first air duct 12 inside the air duct 10. Thus, the convergence of the main air flow 200 and the secondary air flow 300 inside the air duct 10 can be achieved more simply and reliably, and the structural design of the care appliance 100 can be optimized.

[0136] As shown in Figure 14 , the care appliance 100 may further include: a heating module 40. The heating module 40 is at least partially disposed in the second air duct 21. In this way, before the main air flow 200 flows into the air duct 10, it can be heated by the heating module 40 to form a heated air flow. The heated air flow can converge and mix with the secondary air flow 300 to form a mixed air flow, and then the mixed air flow can further flow to the first air outlet 121 to realize the air output of the care appliance 100, meeting the user's requirement for hot air output of the care appliance 100.

[0137] The heating module 40 is disposed in the second air duct 21 and is not close to the outlet of the care appliance 100. Thus, when the care appliance 100 is used in combination with some shaping accessories, due to the certain distance between the shaping accessories and the heating module 40, it can avoid overheating of the shaping accessories caused by hot air or heat radiation, so as to prevent scalding the user. And usually, a magnetic ring or an iron ring is provided on the front end face of the care appliance 100 to fix the shaping accessories. Since the heating module 40 is not close to the outlet of the care appliance 100, it can also avoid overheating of the magnetic ring or the iron ring on the front end face of the care appliance 100, so as to prevent scalding the user.

[0138] It can be understood that the heating module 40 heats the main air flow 200 to form a heated air flow, and the temperature is relatively high, while the secondary air flow 300 has a lower temperature because it has not been heated by the heating module 40.

[0139] By bringing together and mixing the hotter heating air flow and the cooler secondary air flow 300 inside the air duct 10 in advance, the heating air flow and the secondary air flow 300 can be evenly mixed during the process of flowing to the single outlet 15, the temperature of the mixed air flow can be made more uniform, and the user can feel an evenly heated air flow at the single outlet 15, thereby further improving the user's comfort and enhancing the user experience.

[0140] In some embodiments of the present invention, the air duct wall 11 is provided with a telescopic air deflector corresponding to the single outlet 15 to adjust the air volume or the air outlet direction of the single outlet 15.

[0141] Specifically, during actual use, the user's requirements for blowing will vary according to the actual application scenario, such as the air volume and the air outlet direction.

[0142] By providing a telescopic air deflector at the single outlet 15 and connecting the air deflector to the single outlet 15, when the air flows to the single outlet 15, it can further flow out through the air deflector. The user only needs to control the telescopic length of the air deflector to adjust the ventilation area and the ventilation stroke of the air deflector, and the user only needs to control the telescopic rotation of the air deflector to adjust the ventilation direction of the air deflector.

[0143] In this way, the user only needs to manipulate the air deflector to adjust the air volume, the air flow velocity, and the air outlet direction of the air deflector, thereby enabling the adjustment of the air volume, the air flow velocity, or the air outlet direction of the care appliance 100, enriching the air outlet effect of the care appliance 100, and further meeting the user's usage requirements in different scenarios and enhancing the user experience.

[0144] Optionally, the air deflector can be detachably arranged on the air duct wall 11, so that the user can selectively use the air deflector for blowing according to the usage needs, or detach the air deflector and directly use the care appliance 100 for blowing, thereby further meeting the different usage needs of the user.

[0145] Optionally, the air deflector can also be fixedly connected to the air duct wall 11, which can ensure the connection reliability between the air deflector and the air duct wall 11 and prevent the air deflector from falling or being lost against the user's will.

[0146] Moreover, it can be understood that the air deflector is compressible, so that when not in use, the air deflector can be compressed to reduce its volume, facilitating the storage of the air deflector. Even if the air deflector is fixedly connected to the air duct wall 11, the occupied space of the air deflector can be reduced, and even the air deflector can be hidden, ensuring the cleanliness of the care appliance 100 and facilitating the storage of the care appliance 100.

[0147] It should be noted that the nursing device 100 may further include an electronic storage unit, in which a temperature control program is stored, so as to respectively detect and calibrate the temperatures of the airflows at the first air outlet 121, the second air outlet 211, and the only outlet 15, and further control the operation of the heating module 40, so as to avoid the heat loss of the mixed airflow during the process of flowing to the only outlet 15 from affecting the temperature of the mixed airflow at the only outlet 15 of the nursing device 100, thereby ensuring that the outlet air temperature is the same as the user's preset temperature and is constantly controllable, and ensuring the user's usage experience.

[0148] In the above embodiments, by providing the third air duct 31 and the heating module 40, the third air duct 31 is communicated between the first air duct 12 and the second air duct 21, so that the main airflow 200 and the secondary airflow 300 can converge and mix near the first air outlet 121 or the outlet of the third air duct 31 to form a mixed airflow, and then flow to the outlet of the nursing device 100 together. This can not only shorten the flow path of the main airflow 200, but also reduce the heat insulation and heat dissipation parts synchronously because there are fewer high-temperature heating parts, and there are also fewer fluid losses or obstructions caused by the fluid changing direction or passing through more components, improving the air outlet efficiency, reducing the difficulty of optimizing the fluid and noise, enhancing the user's usage experience, and making the structure more compact, miniaturized and portable.

[0149] Since the second air outlet 211 of the second air duct 21 passing through the heating module 40 is hidden in the air duct wall 11 that is difficult for users to directly touch, and the heating module 40 is located at the joint of the handle 20 and the hair dryer barrel 10, it makes the user's use safer. For example, it is difficult for fingers, hair or other sharp objects to enter the second air duct 21 and cause safety accidents.

[0150] Due to the above-mentioned flow path setting, the outer wall of the hair dryer barrel 10 does not directly contact the heated fluid, so that the user will not feel overheated even when holding the hair dryer barrel 10, and even if no anti-scald design is made near the outer wall of the hair dryer barrel 10, the possibility of scalding or overheating will be greatly reduced.

[0151] Specifically, according to the usage conditions in different modes, different room temperatures or different nozzles, the temperature control program is also different, which will not be elaborated here.

[0152] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0153] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0154] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A nursing device, characterized in that: include: A wind tube, wherein a wind duct wall is arranged inside the wind tube, the wind duct wall is spaced apart from the inner wall of the wind tube in the radial direction, a first wind duct is formed inside the wind duct wall, and a first air outlet and a first air inlet are connected at both ends of the first air duct in the front-to-back direction; A handle, the handle being connected to the lower side of the air cylinder, a second air duct being formed in the handle, and a second air outlet and a second air inlet being connected to each other at both ends in the upper and lower directions of the second air duct; a fan assembly, wherein the fan assembly is disposed in the second air duct; An adapter, the adapter is disposed in the wind tube and at least partially located between the inner wall of the wind tube and the wall of the air duct; Wherein, a third air duct is formed at the adapter, and the third air duct is respectively connected with the second air outlet and the first air outlet, so as to guide the wind in the second air duct to the first air outlet through the third air duct.

2. A nursing device, characterized in that: include: A wind tube, wherein a wind duct wall is arranged inside the wind tube, the wind duct wall is spaced apart from the inner wall of the wind tube in the radial direction, a first wind duct is formed inside the wind duct wall, and a first air outlet and a first air inlet are connected at both ends of the first air duct in the front-to-back direction, and the first air outlet is located inside the wind tube; A handle, the handle being connected to the lower side of the air cylinder, a second air duct being formed in the handle, and a second air outlet and a second air inlet being connected to each other at both ends in the upper and lower directions of the second air duct; a fan assembly, wherein the fan assembly is disposed in the second air duct; An adapter, the adapter is disposed in the wind tube and at least partially located between the inner wall of the wind tube and the wall of the air duct; Wherein, a third air duct is formed at the adapter, and the third air duct is respectively connected with the second air outlet and the first air outlet.

3. The nursing device according to claim 2, characterized in that: The adapter comprises two wind guide walls which are arranged relatively spaced apart in the front-to-back direction, the third air duct is formed between the two wind guide walls, and the two wind guide walls extend forward.

4. The nursing device according to claim 3, characterized in that: The two wind guide walls are both arranged in a ring shape; and / or The two wind guide walls are both arranged at the lower part of the wind tube and are both in sheet shape.

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

6. The nursing device 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 device according to claim 2, characterized in that: The care appliance further comprises a heating module, wherein the heating module is at least partially located in the second air duct.

8. The nursing device according to claim 7, characterized in that: The heating module comprises a plurality of sheet-shaped heating sheets, and the plurality of sheet-shaped heating sheets are arranged at intervals in the axial direction and / or the circumferential direction.

9. The nursing device according to claim 7, characterized in that: A heat insulation component is arranged on the wind guide wall, and the heating module is arranged on at least a part of the heat insulation component.

10. The nursing device according to claim 7, characterized in that: The heating module is partially disposed in the third air duct, and the cross-sectional area of ​​the heating module gradually increases in a direction gradually away from the second air outlet.

11. The nursing device according to claim 10, characterized in that: This portion of the heating module extends forward.

12. The nursing device according to claim 10, characterized in that: The heating modules are arranged in the third air duct at intervals in the axial direction and / or the circumferential direction.

13. The nursing device according to claim 7 or 11, characterized in that: The heating module located in the second air duct is in a flat plate shape.

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

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

16. The nursing device 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, so as to further guide the wind in the third air duct.

17. The nursing device according to claim 2, characterized in that: A third air outlet is at least partially opened at one end of the air duct, and the third air outlet is located between the inner wall of the air duct and the wall of the air duct. The second air outlet includes a first air outlet portion and a second air outlet portion, the first air outlet portion is connected to the third air duct, and the third air outlet is connected to the second air outlet portion.

18. The nursing device according to claim 2, characterized in that: Also includes a circuit board, wherein the circuit board is disposed in the handle; and / or The circuit board is arranged in the air cylinder and is located between the air duct wall and the inner wall of the air cylinder.

19. A nursing device, characterized in that: include: A wind tube, wherein a wind duct wall is arranged inside the wind tube, the wind duct wall is arranged radially spaced from the inner wall of the wind tube, a first wind duct is formed inside the wind duct wall, a first air outlet and a first air inlet are connected at both ends of the first air duct in the front-to-back direction, and a only outlet of the nursing appliance is arranged at the front end of the wind tube; A handle, the handle being connected to the lower side of the air cylinder, a second air duct being formed in the handle, and a second air outlet and a second air inlet being respectively arranged at two ends in the upper and lower directions of the second air duct; a fan assembly, wherein the fan assembly is disposed in the second air duct; The first air duct and the second air duct merge in the air cylinder and discharge the care appliance from the single outlet.

20. The nursing device according to claim 19, characterized in that: Also includes: An adapter, wherein the first air outlet is located in the wind tube, the adapter is arranged in the wind tube and is at least partially located between the inner wall of the wind tube and the air duct wall, a third air duct is formed at the adapter, and the third air duct is respectively connected to the second air outlet and the first air outlet.

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

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