A new hair care appliance

Abstract

The present application provides a kind of new hair care appliance, including shell, fan unit, heating unit and control panel arranged in shell, shell is equipped with air inlet unit and air outlet unit, fan unit when working makes external airflow from air inlet unit into shell interior, and after flowing through heating unit, it is discharged from air outlet unit, control panel is electrically connected with heating unit, fan unit;Along with the direction of airflow flowing in shell, heating unit is located downstream of fan unit, and the control panel is located upstream of the heating unit;Shell includes first pipeline and second pipeline, first pipeline and second pipeline are connected and make shell annular, fan unit is arranged in first pipeline;Second pipeline has first position and second position relative to first pipeline, in first position, control panel controls fan unit to work;In second position, fan unit and heating unit do not work.By the telescopic structure design of shell, product is easy to store and carry, at the same time, make hair care appliance simple operation, convenient to use.

Description

Technical Field

[0001] This invention relates to the field of household appliances, and more particularly to a novel hair care device. Background Technology

[0002] Existing hair dryers can be broadly categorized into two types based on their appearance: "I"-shaped and "T"-shaped. Both types include three core components: a fan unit, a heating unit, and a control unit. Different appearances affect the complexity of structural design, technical performance, and user experience.

[0003] For "I"-shaped and "T"-shaped hair dryers, there are requirements for product size, technical performance, and appearance to meet user needs and market demands. This significantly impacts the complexity of the hair dryer's structural design, cost, and user experience. Therefore, there is a need to design a completely new hair dryer with a structure distinct from existing products. This new hair care device should differentiate itself from existing products on the market while ensuring reliability, lightweight design, undiminished technical performance, controllable cost, and portability.

[0004] Furthermore, high-speed hair dryers utilize high-speed motors with high rotational speeds (typically around 110,000 rpm or higher). The control systems of high-speed motors are more complex than those of ordinary motors. The control unit includes multiple heating elements, requiring heat dissipation for these elements or the control unit to be positioned as far away from the heating unit as possible to prevent heat from affecting the reliability of the control unit. Moreover, the control unit is relatively large, often occupying significant installation space, resulting in a bulky product that is inconvenient to carry. Therefore, heat dissipation for the control unit and miniaturization of the product are also among the technical challenges that high-speed hair dryers need to address. Summary of the Invention

[0005] In order to overcome the shortcomings of the existing technology, the present invention provides a novel hair care device that combines portability, easy storage, small size, good user experience, reliable operation, and excellent user experience.

[0006] A novel hair care device includes a housing, a fan unit, a heating unit, and a control board disposed within the housing. The housing has an air inlet unit and an air outlet unit. When the fan unit is working, external airflow enters the housing through the air inlet unit, flows through the heating unit, and exits through the air outlet unit. The control board is electrically connected to the heating unit and the fan unit. Along the direction of airflow within the housing, the heating unit is located downstream of the fan unit, and the control board is located upstream of the heating unit. The housing includes a first pipe and a second pipe, the first pipe and the second pipe are connected to form an annular shape, and the fan unit is disposed inside the first pipe; The second pipe has a first position and a second position relative to the first pipe. In the first position, the control panel controls the fan unit to work; in the second position, the fan unit and the heating unit do not work.

[0007] The advantages of this technical solution are that it provides a ring-shaped hair care device, whose structure differs from conventional hair dryers or other types of hair care products. The design of the first and second pipes allows users to choose either the first or second pipe as the gripping part according to their usage habits, improving the user experience. At the same time, the ring-shaped shell facilitates product miniaturization. Furthermore, the relative mobility of the first and second pipes facilitates the use and storage of the product. When in the second position, the product's size can be further reduced, making it easier to carry and store.

[0008] Preferably, the hair care device further includes a trigger switch disposed in the first pipe, the trigger switch being electrically connected to the control board. When the second pipe is in the first position, the trigger switch is activated to allow the control board to control the fan unit to operate; when the second pipe is in the second position, the trigger switch is deactivated so that the control board controls the fan unit and the heating unit to not operate.

[0009] The advantages of this technical solution are that, by setting a trigger switch, it ensures the reliability and control flexibility of the product, thereby improving the user experience. Furthermore, placing the trigger switch inside the first pipe simplifies the structure and makes it easy to implement.

[0010] Preferably, the trigger switch is located on the inner wall of the first pipe near the second pipe, and the second pipe is provided with a trigger structure so that when the second pipe is in the first position, the trigger structure engages with the trigger switch, and when the second pipe is in the second position, the trigger structure disengages from the trigger switch.

[0011] The advantages of this technical solution are that it has a simple structure, is easy to implement, and helps to simplify the shell construction and reduce costs.

[0012] Preferably, the second duct includes a first section for mounting the heating unit and a second section for mounting the control panel. The first section and the second section intersect and are fixedly connected. The connection between the first section and the second section is physically isolated. The air outlet unit is located at the end of the first section. The second section is disposed opposite to the first duct. The first duct is connected to the first section so that the airflow passes through the fan unit and the heating unit and is discharged from the air outlet unit.

[0013] The advantages of this technical solution are that by placing the control board, heating unit, and fan unit respectively within the first and second conduits, it optimizes the product's center of gravity distribution, improves the user's grip experience, and conforms to ergonomics. Furthermore, by physically isolating the heating unit from radiating heat into the second section, it ensures the control board remains in a low-temperature environment.

[0014] Preferably, the air inlet unit is located in the second section, and the second section is connected to the first pipe so that the airflow flows from the second section into the first pipe, then enters the first section and is discharged from the air outlet unit. The airflow flows in a single direction through the control board, the fan unit and the heating unit in sequence and is discharged from the air outlet unit.

[0015] The advantage of this technical solution is that by allowing airflow to pass through the control board sequentially, it helps to dissipate heat from the control board, extend product life, and improve product reliability.

[0016] Preferably, the first section is thicker than the second section, the first pipe is thicker than the second section, the first end of the first pipe is sleeved outside the first section, and the second end of the first pipe is sleeved outside the second section.

[0017] The advantage of this technical solution is that it optimizes the size of the housing, thereby miniaturizing the product.

[0018] Preferably, the center of mass of the hair care device is located in front of the longitudinal axis of the first pipe, below the longitudinal axis of the first section, and behind the second section.

[0019] The advantage of this technical solution is that it makes the mass distribution of hair care devices conform to ergonomics, thereby improving the user experience.

[0020] Preferably, the first pipe and the second pipe are connected by a sliding structure, the first end of the first pipe wraps around a portion of the first section, and the second end of the first pipe wraps around a portion of the second section; The sliding structure includes: a first guide groove is provided on one of the outer wall of the first section and the inner wall of the corresponding first pipe, and a first guide rib is provided on the other side to cooperate with the first guide groove; a second guide groove is provided on one of the outer wall of the second section and the inner wall of the corresponding first pipe, and a second guide rib is provided on the other side to cooperate with the second guide groove.

[0021] The advantage of this technical solution is that it has a simple and reliable structure.

[0022] Preferably, the inner walls of both the first and second ends of the first pipe are provided with sealing structures, and the sealing structures are closer to the air outlet unit than the sliding structures.

[0023] The advantages of this technical solution are: by designing a sealing structure, it reduces the loss of air volume and air pressure; by making the sealing structure closer to the air outlet unit than the sliding structure, it ensures that the second pipe is in a sealed fit with the first pipe throughout the entire sliding stroke, thereby improving the sealing performance; and it prevents airflow from entering the gap at the joint between the first pipe and the second pipe, which would cause turbulence.

[0024] Preferably, the hair care device further includes a limiting locking structure to keep the first and second channels fixed in position in the first and second positions.

[0025] The advantage of this technical solution is that the setting of the limit locking structure improves the reliability of the product when it is in the first position, preventing the first and second pipes from falling out of the first position due to shaking of the product during use, which would cause the fan unit to lose power and stop working; at the same time, it prevents the first and second pipes from falling out of the second position when the hair dryer is in the storage state, which would cause storage inconvenience. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the housing of the hair care device of the present invention in the first position.

[0027] Figure 2 This is a schematic diagram of the structure of the housing of the hair care device of the present invention in the second position.

[0028] Figure 3 This is a schematic diagram of the hair care device of the present invention from another perspective when it is in the first position.

[0029] Figure 4 This is a cross-sectional view of a hair care device according to the present invention.

[0030] Figure 5 This is a schematic diagram of the structure of the hair care device of the present invention in the first position, showing the interaction between the trigger structure and the trigger switch.

[0031] Figure 6This is a schematic diagram of the structure of the housing of the present invention.

[0032] Figure 7 This is a schematic diagram of the limiting and locking structure of the hair care device of the present invention.

[0033] The names of the components shown in the diagram are as follows: 1. Housing; 101. First pipe; 1011. First end; 1012. Second end; 102. Second pipe; 1021. First section; 1022. Second section; 2. Fan unit; 3. Heating unit; 4. Control board; 5. Air inlet unit; 6. Air outlet unit; 7. Trigger switch; 8. Trigger structure; 9. Rib; 10. First groove; 11. Protrusion; 12. Second groove; 13. Limiting baffle. Detailed Implementation

[0034] The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present disclosure will become clearer and more apparent.

[0035] Unless otherwise defined, all technical and scientific terms used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs; the terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to limit this disclosure; the terms “comprising” and “having” and any variations thereof in the specification and the foregoing description of this disclosure are intended to cover non-exclusive inclusion.

[0036] The term "embodiment" as used in this disclosure means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this disclosure. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this disclosure can be combined with other embodiments.

[0037] The specific term "exemplary" used in this disclosure means "serving as an example, embodiment, or illustration." Any embodiment illustrated as "exemplary" is not necessarily to be construed as superior or better than other embodiments. Although various aspects of embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated otherwise.

[0038] In the description of this disclosure, the technical terms “first,” “second,” “third,” etc., are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary or secondary relationship of the indicated technical features.

[0039] In the description of this disclosure, the technical term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0040] In the description of this disclosure, unless otherwise expressly specified and limited, the technical terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0041] In the description of this disclosure, the technical terms "upper", "lower", "inner", "outer", "front", "back", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship under the working state of this disclosure. They are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0042] In the description of this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this disclosure, "parallel" includes not only the case of absolute parallelism, but also the case of approximate parallelism as commonly understood in engineering; similarly, "perpendicular" includes not only the case of absolute perpendicularity, but also the case of approximate perpendicularity as commonly understood in engineering.

[0044] In the description of this disclosure, "multiple" means two or more (including two), unless otherwise expressly and specifically limited.

[0045] In the description of this disclosure, the same reference numerals denote the same components, and for brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, and other dimensions of various components in the embodiments of this disclosure shown in the drawings, as well as the overall thickness, length, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this disclosure.

[0046] like Figure 1-6 As shown, a novel hair care device includes a housing 1, a fan unit 2, a heating unit 3, and a control board 4 disposed within the housing 1. The housing 1 has an air inlet unit 5 and an air outlet unit 6. When the fan unit 2 operates, external airflow enters the housing 1 through the air inlet unit 5, flows through the heating unit 3, and exits through the air outlet unit 6. The control board 4 is electrically connected to the heating unit 3 and the fan unit 2. Along the direction of airflow within the housing 1, the heating unit 3 is located downstream of the fan unit 2, and the control board 4 is located upstream of the heating unit 3. The housing 1 includes a first pipe 101 and a second pipe 102, which are connected to form a ring shape. The fan unit 2 is disposed within the first pipe 101. The second pipe 102 has a first position and a second position relative to the first pipe 101 (e.g., ...). Figure 1 , 2 As shown), in the first position, the control board 4 controls the fan unit 2 to work; in the second position, the fan unit 2 and the heating unit 3 are not working.

[0047] The hair care device of this invention differs in structure from conventional hair dryers or other types of hair care products. Through the design of the first pipe 101 and the second pipe 102, and by making the housing 1 annular, users can choose either the first pipe 101 or the second pipe 102 as the gripping part according to their usage habits, improving the user experience. Simultaneously, the annular shape of the housing 1 facilitates product miniaturization. Furthermore, by allowing the first pipe 101 and the second pipe 102 to move relative to each other, the product is easy to use and store. When the second pipe 102 is in the first position, the housing 1 is at its longest dimension in the left-right direction, making it easier for the user to grip (e.g., ...). Figure 1 (As shown); when the second pipe 102 is in the second position, the size of the housing 1 in the left-right direction is minimized, which can further reduce the product volume and facilitate product carrying and storage (e.g. Figure 2 (As shown).

[0048] More specifically, in the first position, "fan unit 2 controls the operation of fan unit 2" means that when the second pipe 102 is in the first position, the conditions for starting the fan unit 2 are met. It does not mean that the fan unit 2 will immediately start operating when both the first pipe 101 and the second pipe 102 are in the first position. That is, the fan unit 2 can start operating immediately when the second pipe 102 reaches the first position, or it can be controlled by the control board 4 after external input conditions are met. Furthermore, the aforementioned external input conditions can be various types of control switches electrically connected to the control board 4, or input signals generated or formed by the user operating the control switch.

[0049] In this technical solution, the heating unit 3 and the control board 4 can be arranged in various ways within the housing 1. In one example, the control board 4 and the heating unit 3 are located within the second pipe 102; in another example, the control board 4 is located within the second pipe 102, and the heating unit 3 is located within the first pipe 101.

[0050] In this technical solution, the control board 4 and the fan unit 2 can be arranged in various ways within the housing 1. In one example, the control board 4 and the fan unit 2 are arranged opposite each other, with the control board 4 located inside the second pipe 102 and the fan unit 2 located inside the first pipe 101. In another example, the control board 4 and the fan unit 2 are arranged opposite each other, with the control board 4 located inside the first pipe 101 and the fan unit 2 located inside the second pipe 102. In other examples, both the fan unit 2 and the control board 4 can be arranged inside the first pipe 101, or both the fan unit 2 and the control board 4 can be arranged inside the second pipe 102, which can also achieve the basic technical functions of the hair care device mentioned in this invention.

[0051] Furthermore, the hair care appliance mentioned in this invention also includes a control switch (not shown in the figure) electrically connected to the control board 4. The control switch can be located in the first pipe 101, the second pipe 102, or both the first pipe 101 and the second pipe 102 as needed for control. When the control board 4 is located in the second pipe 102, it is preferable to locate the control switch on the second pipe 102. This arrangement simplifies the electrical connection structure and reduces structural complexity.

[0052] like Figure 5As shown, the hair care appliance also includes a trigger switch 7 disposed within the first conduit 101. The trigger switch 7 is electrically connected to the control board 4. When the second conduit 102 is in the first position, the trigger switch 7 is activated to allow the control board 4 to control the fan unit 2 to operate. That is, the activation of the trigger switch 7 establishes an electrical connection between the control board 4 and the fan unit 2. This can be achieved by the trigger switch 7 activating the power switch of a traditional hair dryer, immediately starting the fan unit 2; or it can be that the activation of the trigger switch 7 is one of the conditions for the fan to operate, and the operation of the fan unit 2 is then achieved through the operation of other control switches. When the second conduit 102 is in the second position, the trigger switch 7 is deactivated to prevent the control board 4 from controlling the fan unit 2 and the heating unit 3 to operate. That is, the deactivation of the trigger switch 7 disconnects the electrical connection between the control board 4 and the fan unit 2 and the heating unit 3, and the fan unit 2 and the heating unit 3 stop operating after the trigger switch 7 is deactivated. The trigger switch 7 ensures the reliability and control flexibility of the product, improving the user experience. Furthermore, the trigger switch 7 is located inside the first pipe 101, making the structure simple and easy to implement.

[0053] The trigger switch 7 is located on the inner wall of the first pipe 101 near the second pipe 102. The second pipe 102 is provided with a trigger structure 8, so that when the second pipe 102 is in the first position, the trigger structure 8 engages with the trigger switch 7; when the second pipe 102 is in the second position, the trigger structure 8 disengages from the trigger switch 7. The structure is simple and easy to implement, which helps simplify the construction of the housing 1 and reduce costs. The trigger structure 8 can be a protrusion, bump, rib, blade, or other structure provided on the second pipe 102.

[0054] like Figure 4 , 5As shown in Figure 6, the fan unit 2 is disposed within the first pipe 101. The second pipe 102 includes a first section 1021 for housing the heating unit 3 and a second section 1022 for housing the control board 4. The first section 1021 and the second section 1022 intersect and are fixedly connected. The connection between the first section 1021 and the second section 1022 is physically isolated. The air outlet unit 6 is disposed at the end of the first section 1021. The second section 1022 is disposed opposite to the first pipe 101. The first pipe 101 and the first section 1021 are connected so that airflow passes through the fan unit 2 and the heating unit 3 and is discharged from the air outlet unit 6. By disposing the control board 4, the heating unit 3, and the fan unit 2 within the first pipe 101 and the second pipe 102 respectively, the center of gravity distribution of the product is optimized, improving the user's grip experience and conforming to ergonomics. On the other hand, the physical structure isolates the heating unit 3 from radiating heat into the second section 1022, ensuring that the control board 4 is in a low-temperature environment. In this example, the hair care appliance includes a control switch for controlling the fan speed of the fan unit 2 or a control switch for controlling the temperature of the heating unit 3. The control switches are located in the second section 1022, making efficient use of the space in the housing 1 and facilitating product miniaturization. The physical structure can be a structural component that constitutes at least a part of the first section 1021 or the second section 1022, or it can be a separate component independent of the first section 1021 or the second section 1022; the former is preferred, as it reduces costs and simplifies the construction of the housing 1.

[0055] Furthermore, the air inlet unit 5 is located in the second section 1022, which is connected to the first pipe 101 so that airflow flows from the second section 1022 into the first pipe 101, then into the first section 1021, and finally exits from the air outlet unit 6. The airflow flows sequentially through the control board 4, the fan unit 2, and the heating unit 3 in a single direction. By allowing the airflow to pass sequentially through the control board 4, it is beneficial to dissipate heat from the control board 4, extend the product life, and improve the product's operational reliability. To reduce wind resistance and turbulence, the second section 1022 is arc-shaped. Furthermore, the first section 1021 is thicker than the second section 1022, and the first pipe 101 is thicker than the second section 1022. The first end 1011 of the first pipe 101 is fitted onto the outside of the first section 1021, and the second end 1012 of the first pipe 101 is fitted onto the outside of the second section 1022. The dimensions of the housing 1 are optimized to miniaturize the product. Users can choose to use the second section 1022 or the first pipe 101 as the handheld part as needed to improve the user experience.

[0056] Furthermore, the center of mass of the hair care device is located in front of the longitudinal axis of the first conduit 101, below the longitudinal axis of the first section 1021, and behind the second section 1022. This makes the mass distribution of the hair care device ergonomic and improves the user experience.

[0057] like Figure 1 , 2 As shown in the example, this example illustrates the structure for achieving a relative positional change between the first pipe 101 and the second pipe 102. The first pipe 101 and the second pipe 102 are connected by a sliding structure. The first end 1011 of the first pipe 101 wraps around a portion of the first section 1021, and the second end 1012 of the first pipe 101 wraps around a portion of the second section 1022. The sliding structure includes: a first guide groove on one of the outer wall of the first section 1021 and the corresponding inner wall of the first pipe 101, and a first guide rib that mates with the first guide groove on the other; a second guide groove on one of the outer wall of the second section 1022 and the corresponding inner wall of the first pipe 101, and a second guide rib that mates with the second guide groove on the other. The structure is simple and reliable.

[0058] The inner walls of both the first end 1011 and the second end 1012 of the first pipe 101 are provided with sealing structures, which are closer to the air outlet unit 6 than the sliding structure. This sealing structure design reduces airflow and pressure loss; by placing the sealing structure closer to the air outlet unit 6 than the sliding structure, it ensures that the second pipe 102 maintains a sealed fit with the first pipe 101 throughout its entire sliding stroke, improving sealing performance; and it prevents airflow from entering the gap at the joint between the first pipe 101 and the second pipe 102, thus preventing turbulence. The sealing structure can be a raised-concave stop seal or a soft rubber sealing ring.

[0059] like Figure 7As shown, the hair care appliance also includes a limiting locking structure to keep the first pipe 101 and the second pipe 102 fixed in the first and second positions. The limiting locking structure improves the reliability of the product in the first position, preventing the fan unit 2 from malfunctioning due to shaking during use and the first pipe 101 and the second pipe 102 disengaging from the first position; it also prevents the first pipe 101 and the second pipe 102 from disengaging from the second position when the hair dryer is stored, thus avoiding storage inconvenience. The limiting locking structure can be a snap-fit ​​or a slot structure; it can also be an elastic locking structure, including a spring, a locking button, a locking buckle, and a locking groove. When the first pipe 101 and the second pipe 102 are in the first and second positions, the elastic locking structure locks their positions. The spring applies force to the locking buckle, causing it to be stably placed in the locking groove. When it is necessary to disengage the first pipe 101 and the second pipe 102, the locking button is pressed, disengaging the locking buckle from the locking groove, allowing the first pipe 101 and the second pipe 102 to move. In this example, as... Figure 7 As shown, the inner wall of the first pipe 101 is provided with a second groove and a protrusion, and the outer wall of the second pipe 102 is provided with a rib 9 and a first groove 10. In the first position, the rib 9 is located in the second groove 12 to limit and lock the first pipe 101 and the second pipe 102; in the second position, the protrusion 11 is located in the first groove 10 to limit the first pipe 101 and the second pipe 102. Furthermore, in order to further improve the working reliability of the product, a limiting baffle 13 is provided at the end of the first pipe 101. The limiting baffle 13 restricts the second pipe 102 from being pulled out of the first pipe 101. In the second position, the limiting baffle 13 abuts against the rib 9.

[0060] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, make equivalent substitutions for some of the technical features, or freely combine multiple embodiments. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A novel hair care device, comprising a housing, a fan unit, a heating unit, and a control board disposed within the housing, wherein the housing is provided with an air inlet unit and an air outlet unit, wherein when the fan unit is in operation, external airflow enters the housing from the air inlet unit, flows through the heating unit, and is discharged from the air outlet unit; the control board is electrically connected to the heating unit and the fan unit; along the direction of airflow within the housing, the heating unit is located downstream of the fan unit, and the control board is located upstream of the heating unit; Its features are, The housing includes a first pipe and a second pipe, the first pipe and the second pipe are connected to form a ring shape, and the fan unit is disposed inside the first pipe; The second pipe has a first position and a second position relative to the first pipe. In the first position, the control panel controls the fan unit to work; in the second position, the fan unit and the heating unit do not work.

2. The hair care appliance according to claim 1, characterized in that, The hair care device also includes a trigger switch disposed in the first pipe. The trigger switch is electrically connected to the control board. When the second pipe is in the first position, the trigger switch is activated to allow the control board to control the fan unit to work. When the second pipe is in the second position, the trigger switch is deactivated so that the control board controls the fan unit and the heating unit to not work.

3. The hair care appliance according to claim 2, characterized in that, The trigger switch is located on the inner wall of the first pipe near the second pipe. The second pipe is provided with a trigger structure so that when the second pipe is in the first position, the trigger structure engages with the trigger switch, and when the second pipe is in the second position, the trigger structure disengages from the trigger switch.

4. The hair care appliance according to claim 1, characterized in that, The second pipe includes a first section for mounting the heating unit and a second section for mounting the control panel. The first section and the second section intersect and are fixedly connected. The connection between the first section and the second section is physically isolated. The air outlet unit is located at the end of the first section. The second section is disposed opposite to the first pipe. The first pipe is connected to the first section so that the airflow passes through the fan unit and the heating unit and is discharged from the air outlet unit.

5. The hair care appliance according to claim 4, characterized in that, The air inlet unit is located in the second section, which is connected to the first pipe so that airflow flows from the second section into the first pipe, then enters the first section and is discharged from the air outlet unit. The airflow flows in a single direction through the control board, the fan unit and the heating unit in sequence and is discharged from the air outlet unit.

6. The hair care appliance according to claim 4, characterized in that, The first section is thicker than the second section, the first pipe is thicker than the second section, the first end of the first pipe is fitted outside the first section, and the second end of the first pipe is fitted outside the second section.

7. The hair care appliance according to claim 4, characterized in that, The center of mass of the hair care device is located in front of the longitudinal axis of the first pipe, below the longitudinal axis of the first section, and behind the second section.

8. The hair care appliance according to claim 4, characterized in that, The first pipe and the second pipe are connected by a sliding structure, with the first end of the first pipe wrapping around a portion of the first section and the second end of the first pipe wrapping around a portion of the second section; The sliding structure includes: a first guide groove is provided on one of the outer wall of the first section and the inner wall of the corresponding first pipe, and a first guide rib is provided on the other side to cooperate with the first guide groove; a second guide groove is provided on one of the outer wall of the second section and the inner wall of the corresponding first pipe, and a second guide rib is provided on the other side to cooperate with the second guide groove.

9. The hair care appliance according to claim 8, characterized in that, The inner walls of both the first and second ends of the first pipe are provided with sealing structures, and the sealing structures are closer to the air outlet unit than the sliding structures.

10. The hair care appliance according to claim 1, characterized in that, The hair care device also includes a limiting and locking structure to keep the first and second channels fixed in position in the first and second positions.

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