hair dryer

Abstract

The present invention relates to a hair dryer, comprising a housing, wherein the housing is provided with an air inlet, through which air enters; a motor, located inside the housing; a fan, driven by the motor to rotate around the fan's rotation axis and generate airflow; a blow pipe, sleeved on the housing and having an air outlet, through which the airflow is blown out; and a duct, housed in the housing or the blow pipe, wherein the duct is located between the fan and the air outlet and is used to guide the airflow toward the air outlet, wherein in the axial direction of the fan, the sleeve joint between the blow pipe and the housing is staggered from the duct, and the two ends of the duct are respectively limited by the housing and the blow pipe. The sleeve joint between the duct and the blow pipe housing is staggered to avoid multi-layer stacking, and the installation volume is small; at the same time, when the blow pipe is connected to the housing, the two ends of the duct are respectively limited by the housing and the blow pipe, without other positioning structures, and the installation method is simple.

Description

Technical Field

[0001] The present invention relates to the field of garden tools, in particular to a hair dryer. Background Art

[0002] In garden machinery, a blower is a commonly used tool that uses airflow to the ground to clean dust or debris. Figure 1 As shown, in the prior art, a hair dryer generally includes a casing 10 with a fan (not shown) disposed inside, a blow pipe 20 connected to the casing 10, and a duct 30 housed inside the casing 10. The function of the duct 30 is to guide the airflow generated by the fan to move toward the air outlet of the blow pipe 20. Figure 1 Only the local matching structure of the casing 10, the blowing pipe 20 and the duct 30 at the connection is schematically drawn; one end of the blowing pipe 20 is sleeved on the casing 10, and at this time the casing 10, the blowing pipe 20 and the duct 30 are superimposed in three layers, resulting in a thicker overall wall thickness. Summary of the Invention

[0003] Based on this, it is necessary to propose a hair dryer to address the problem of three layers of superposition of the air duct, casing and duct resulting in a thick overall wall thickness.

[0004] A hair dryer comprises a casing, wherein the casing is provided with an air inlet, through which air enters; a motor, located inside the casing; a fan, driven by the motor, to rotate around the fan's rotation axis and generate airflow; a blow pipe, sleeved on the casing and having an air outlet, through which the airflow is blown out; a duct, housed in the casing or the blow pipe, the duct being located between the fan and the air outlet and used to guide the airflow to move toward the air outlet, wherein in the axial direction of the fan, a projection of a sleeve between the blow pipe and the casing in a plane parallel to the axial direction does not overlap with a projection of the duct in the plane, and both ends of the duct are respectively limited by the casing and the blow pipe.

[0005] In the above-mentioned hair dryer, in the axial direction of the fan, the joints between the blowing pipe and the casing, and the duct are staggered with each other, so only the casing and the pipe walls of the blowing pipe are superimposed, and the duct is superimposed on the blowing pipe or the casing. Compared with the prior art in which the casing, the blowing pipe and the duct are superimposed in sequence, the hair dryer of this embodiment avoids multi-layer superposition, and the wall thickness of the shell composed of the casing and the blowing pipe is relatively small, which can effectively reduce the diameter of the shell at the connection between the casing and the blowing pipe, and the volume is smaller; at the same time, when assembling the above-mentioned hair dryer, the duct is first installed into the blowing pipe, and then the blowing pipe with the duct is assembled to the casing. The positioning of the duct 30 is completed when the casing and the blowing pipe are connected. There is no other positioning structure, and the installation method is simple.

[0006] In one embodiment, in the axial direction of the fan, two ends of the duct respectively abut against the casing and the blowing pipe.

[0007] In one embodiment, the duct is housed in the blowing pipe, and an inner wall of the blowing pipe is provided with a step, and the step abuts against the duct.

[0008] In one embodiment, the duct includes an inner guide cover, an outer guide cover, and stationary blades arranged between the inner guide cover and the outer guide cover, and two ends of the outer guide cover are respectively in contact with the casing and the blowing pipe.

[0009] In one embodiment, the fan is at least partially located inside the guide cover of the duct.

[0010] In one embodiment, the blowing pipe is sleeved on the casing, and the blowing pipe is detachably connected to the casing.

[0011] In one embodiment, one of the blowing pipe and the housing is provided with a hook, and the other is provided with a slot, and the slot is connected to the hook.

[0012] In one embodiment, the hair dryer further includes a motor bracket supporting the motor, the motor bracket includes an inner ring for fixing the motor and a plurality of support members connecting the inner ring and the housing, and the motor is fixed in the inner ring.

[0013] In one embodiment, a sound insulation layer is provided on the inner wall of the housing facing the motor, and the sound insulation layer surrounds the inner ring.

[0014] In one embodiment, an air inlet cover is provided on the air inlet, and an air inlet pipe is connected to the air inlet cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a partial cross-sectional schematic diagram of a hair dryer in the prior art.

[0016] Figure 2 Schematic diagram of the cross-sectional structure of a hair dryer according to an embodiment of the present invention.

[0017] Figure 3 FIG. 1 is a schematic cross-sectional structural diagram of a duct according to an embodiment of the present invention.

[0018] The relevant components in the figure are marked as follows:

[0019] 10. Casing; 20. Blowing pipe; 30. Duct; 100. Hair dryer; 10. Casing; 110. Air inlet; 120. Air inlet cover; 130. Hook; 140. Sound insulation layer; 20. Blowing pipe; 210. Air outlet; 220. Step; 30. Duct; 310. Inner guide cover; 320. Outer guide cover; 330. Stationary blades; 40. Fan; 410. Hub; 420. Blades; X, axis of rotation; 50. Motor; 60. Motor bracket; 610. Inner ring; 620. Support member; 70. Air inlet pipe; 80. Handle. DETAILED DESCRIPTION

[0020] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are 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 understood as limiting the present invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0023] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0024] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0025] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be an element centered thereon. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method. The term "and / or" used herein includes any and all combinations of one or more of the relevant listed items.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0027] The preferred embodiments of the hair dryer of the present invention will be described below with reference to the accompanying drawings.

[0028] Please refer to Figure 2 , Figure 2 The cross-sectional structure of a hair dryer 100 according to an embodiment of the present invention is shown. Figure 3 , Figure 3 FIG. 1 illustrates a cross-sectional structure of a duct 30 in a hair dryer 100 according to an embodiment of the present invention.

[0029] like Figure 2 As shown, a hair dryer 100 according to an embodiment of the present invention includes a housing 10, a blowing pipe 20 connected to the housing 10, a duct 30, a fan 40 and a motor 50, wherein the duct 30, the fan 40 and the motor 50 are housed in a shell composed of the housing 10 and the blowing pipe 20.

[0030] An air inlet 110 is provided at one end of the housing 10, and outside air can enter the housing 10 through the air inlet 110. An opening (not numbered) is provided at one end of the housing 10, which serves as a connection port for connecting to the blow pipe 20. One end of the blow pipe 20 is detachably connected to the housing 10. An air outlet 210 is provided at the other end of the blow pipe 20. Air is blown out of the air outlet 210 and then blown toward the ground. In a preferred embodiment, the blow pipe 20 also has a suction function. When the suction function is performed, air together with debris is sucked in from the air outlet 210 of the blow pipe 20, passes through the fan 40, and is discharged from the air inlet 110.

[0031] A fan 40 and a motor 50 are provided in the housing 10. In an embodiment of the present invention, the fan 40 is an axial flow fan 40, which is driven by the motor 50 to rotate around the rotation axis X of the fan 40 and generate an airflow. The fan 40 includes a hub 410 connected to the output shaft of the motor 50 and a plurality of blades 420 mounted to the hub 410. The blades 420 can be integrally formed with the hub 410, or they can be assembled together after being separated. The blades 420 extend roughly in the radial direction of the hub 410. The hub 410 and the blades 420 can be driven by the motor 50 to rotate around the rotation axis X of the fan 40, thereby generating an airflow moving in the direction of the rotation axis X of the fan 40 (defined as the axial direction of the fan 40). In this embodiment, the rotation axis X of the fan 40 coincides with the center line of the blowpipe 20. It should be noted that when the hair dryer 100 performs the blowing function, the fan 40 rotates in a first direction around the rotation axis X of the fan 40, and when the hair dryer 100 performs the suction function, the fan 40 rotates in a second direction around the rotation axis X of the fan 40, wherein the second direction rotates in the same direction as the first direction. Figure 2 When viewed from the middle left side, one of the second direction and the first direction is counterclockwise, and the other is clockwise.

[0032] The function of the duct 30 is to rectify the airflow generated by the fan 40. Specifically, the function of the duct 30 is to guide the airflow generated by the fan 40 to move toward the air outlet 210 of the blow pipe 20, and to concentrate and unify the direction of the airflow to improve the air outlet effect. The duct 30 is located in the downstream area of the fan 40, and is arranged between the fan 40 and the air outlet 210; the air inlet 110 is located in the upstream area of the fan 40. In the upstream area, after the air enters the interior of the casing 10 from the air inlet 110, it moves toward the direction close to the fan 40. And through the fan 40, the air moves from the upstream area to the downstream area. In the downstream area, the air moves in the direction away from the fan 40, and is finally blown to the outside through the blow pipe 20, such as Figure 2 Indicated by the arrow.

[0033] like Figure 2As shown, in this embodiment, the duct 30 is received inside the blowing pipe 20, that is, the entire duct 30 is received inside the blowing pipe 20. Figure 2 The other end of the duct 30 ( Figure 2 A gap is left between the fan 40 (left end in the center) and the opening of the blowing pipe 20, allowing the opening of the blowing pipe 20 to partially extend beyond the left end of the duct 30. This portion serves as a connection to the housing 10. The duct 30 is limited at both ends by the housing 10 and the blowing pipe 20, respectively. In the axial direction of the fan 40, the duct 30 is staggered at its socket connection with the blowing pipe 20 and the housing 10.

[0034] Specifically, one end of the blowing pipe 20 is sleeved on the housing 10, and the sleeve connection between the two is as follows: Figure 2 As shown in the dashed box, area A represents the overlapping portion of the blowpipe 20 and the housing 10. The duct 30 is located on the side of area A away from the motor 50. In the axial direction of the fan 40, the overlapping portion of the blowpipe 20 and the housing 10 and the duct 30 are arranged side by side. Therefore, in this embodiment, only the housing 10 and the walls of the blowpipe 20 overlap, and the duct 30 overlaps with the blowpipe 20. Compared to the prior art, where the housing, blowpipe, and duct are stacked sequentially, the hair dryer 100 of this embodiment avoids multiple layers of stacking. The wall thickness of the housing formed by the housing 10 and the blowpipe 20 is relatively small, which effectively reduces the diameter of the housing at the connection between the housing 10 and the blowpipe 20. According to calculations, for a duct 30 of the same specifications, using the above-mentioned installation method, the diameter of the housing of the hair dryer 100 of this embodiment at the connection between the housing 10 and the blowpipe 20 can be reduced by 4 mm, resulting in a smaller housing volume. At the same time, when assembling the above-mentioned hair dryer 100, the duct 30 is first installed into the blowing pipe 20, and then the blowing pipe 20 with the duct 30 is assembled to the casing 10. The positioning of the duct 30 is completed at the same time as the casing 10 and the blowing pipe 20 are connected. There is no other positioning structure, and the installation method is simple.

[0035] In the hair dryer 100 of the above embodiment, the duct 30 is staggered with the socket joints of the blowing pipe 20 and the casing 10 in the axial direction of the fan 40. That is, the projection of the socket joint between the blowing pipe 20 and the casing 10 in a plane parallel to the axial direction does not overlap with the projection of the duct 30 in the same plane, thereby avoiding multi-layer stacking and reducing the installation volume. At the same time, the two ends of the duct 30 are respectively limited by the casing 10 and the blowing pipe 20, without any other positioning structure, and the installation method is simple.

[0036] In other embodiments, the duct 30 may also be housed in the housing 10. Similarly, in the axial direction of the fan 40, the sleeve joint between the blowing pipe 20 and the housing 10 and the duct 30 are arranged side by side. Figure 2The dashed box A in the middle may be located to the right of the duct 30. This embodiment also avoids the need for multiple layers of stacking. The relatively thin wall thickness of the housing formed by the casing 10 and the blower tube 20 effectively reduces the diameter of the housing at the junction of the casing 10 and the blower tube 20. During fan assembly, the duct 30 is first installed into the casing 10, followed by the blower tube 20. The duct 30 is positioned simultaneously with the connection between the casing 10 and the blower tube 20, eliminating the need for additional positioning structures, simplifying installation.

[0037] In some embodiments, the ends of the duct 30 abut the housing 10 and the blowpipe 20, respectively, and the duct 30 is fixedly disposed within the housing formed by the housing 10 and the blowpipe 20. Specifically, after the blowpipe 20 is connected to the housing 10, the housing 10 and the blowpipe 20 firmly abut the duct 30 from the left and right sides, respectively, thereby constraining the duct 30 in both the axial and radial directions of the fan 40. In other words, the duct 30 cannot move relative to the housing 10 or the blowpipe 20 and can only move with the housing 10 and the blowpipe 20.

[0038] In a specific implementation scheme, Figure 2 and Figure 3 As shown, the duct 30 includes an inner guide cover 310, an outer guide cover 320, and stationary blades 330 arranged between the inner guide cover 310 and the outer guide cover 320. In the axial direction of the fan 40, the two ends of the outer guide cover 320 are respectively abutted against the casing 10 and the blowing pipe 20 and are restricted from moving relative to the casing 10 or the blowing pipe 20.

[0039] The guide outer cover 320 is cylindrical and extends roughly along the axial direction of the fan 40. The guide inner cover 310 is housed inside the guide outer cover 320 and is fixedly connected to the guide outer cover 320. The guide inner cover 310 also extends roughly along the axial direction of the fan 40 and is roughly in the shape of a hollow cone. The gap formed between the guide inner cover 310 and the guide outer cover 320 is used to allow the airflow generated by the fan 40 to pass through. The static blades 330 are located between the guide inner cover 310 and the guide outer cover 320 and are provided in plurality. Among them, the plurality of static blades 330 are arranged at intervals around the circumference of the guide inner cover 310, and the airflow generated by the fan 40 passes through the gaps between the static blades 330. A step 220 is provided on the inner wall of the blowing pipe 20 , the right end of the guide cover 320 abuts against the step 220 , and the left end of the guide cover 320 abuts against the end face of the opening of the casing 10 , so that the duct 30 is clamped and fixed by the casing 10 and the blowing pipe 20 .

[0040] In the hair dryer of the above embodiment, the casing 10 and the blowing pipe 20 abut against the guide outer cover 320, wherein the step 220 can be formed on the inner wall of the blowing pipe 20 when the blowing pipe 20 is formed to abut against the guide outer cover 32, and the casing 10 directly uses the end face of the opening to limit the guide outer cover 320. Whether it is the blowing pipe 20 or the casing 10, it is relatively simple to limit the guide outer cover 320.

[0041] Based on the above embodiment, in a preferred embodiment, the fan 40 is at least partially located inside the guide cover 320 of the duct 30. Figure 2 As shown, the fan blades 420 and the portion of the hub 410 surrounded by the fan blades 420 are located within the space enclosed by the guide outer cover 320, with a gap between the end of the hub 410 close to the guide inner cover 310 and the end of the guide inner cover 310. The free space within the guide outer cover 320 is used to accommodate the fan 40, saving the size of the hair dryer 100 in the axial direction of the fan 40. The guide outer cover 320 itself utilizes the space of the blow pipe 20 in the axial direction of the fan 40, and there is no overlap in axial dimensions with the blow pipe 20. Therefore, the arrangement of the positions of the fan 40, the guide outer cover 320, and the blow pipe 20 makes the hair dryer 100 relatively compact in the axial direction of the fan 40.

[0042] In other embodiments, the duct 30 may be configured to be floatably disposed within the housing formed by the housing 10 and the blowing pipe 20. Specifically, the ends of the duct 30 are respectively restrained by the housing 10 and the blowing pipe 20. A shock-absorbing pad is provided between the duct 30 and the housing 10 in the axial direction of the fan 40, and a shock-absorbing pad is also provided between the duct 30 and the blowing pipe 20.

[0043] Unlike the previous embodiment in which the duct 30 cannot move relative to the housing 10 and the blower pipe 20, in this embodiment, the duct 30 can move left and right. The housing 10 and the blower pipe 20 only serve to limit the maximum left and right range of movement of the duct 30. When the hair dryer 100 is in operation, wind passing through the gaps between the stator blades 330 generates a force acting on the duct 30. Due to the provision of the aforementioned shock-absorbing pads, the duct 30 can float within a small range in the axial and radial directions of the fan 40 when subjected to strong wind forces, making it suitable for high-power hair dryers 100.

[0044] Furthermore, a shock-absorbing pad is provided between the inner wall of the blowing pipe 20 and the air guide cover 320 in the radial direction of the fan 40. When the duct 30 is subjected to strong wind forces and floats within a small radial range of the fan 40, the shock-absorbing pad can cushion the force on the duct 30 and prevent the duct 30 from hitting the inner wall of the blowing pipe 20. The shock-absorbing pad is specifically provided in an annular shape and embedded in the interior of the blowing pipe 20.

[0045] In the above embodiment, the blowing pipe 20 is detachably connected to the housing 10, and the specific implementation method is not limited. In a specific embodiment, the end of the blowing pipe 20 is sleeved on the opening of the housing 10 and is detachably connected to the housing 10 by snap-fitting. Figure 2 As shown, the blowpipe 20 is provided with a slot, and the housing 10 is provided with a hook 130. To connect the blowpipe 20 to the housing 10, the end of the blowpipe 20 is inserted into the opening of the housing 10, and the slot is connected to the hook 130. The hook 130 can be provided at multiple locations around the circumference of the housing 10; correspondingly, the slot can be provided at multiple locations around the circumference of the blowpipe 20. The shapes of the hook 130 and the slot are not limited, as long as they can connect the blowpipe 20 to the housing 10.

[0046] In other embodiments, the housing 10 may be sleeved on the end of the blowing pipe 20, wherein the housing 10 is provided with a slot and the blowing pipe 20 is provided with a hook 130. Similarly, the number and shape of the hook 130 and the slot are not limited.

[0047] In the hair dryer 100 of the above embodiment, the motor 50 is arranged in the upstream area of the fan 40. Figure 2 As shown, the hair dryer 100 also includes a motor bracket 60 for supporting the motor 50. The motor bracket 60 includes an inner ring 610 for securing the motor 50 and a plurality of support members 620 connecting the inner ring 610 to the housing 10. The motor bracket 60 is also located upstream of the fan 40. The support members 620 securely connect the housing 10 to the inner ring 610. Therefore, the housing 10 can also be considered the outer ring of the motor bracket 60, and the two can be formed as a single piece. In other words, the motor bracket 6 is a double-layer structure that, together with the blowpipe 20, positions the duct 30.

[0048] The motor 50 generates considerable noise when in operation. Therefore, a sound insulation layer 140 is provided on the inner wall of the housing 10 facing the motor 50. The sound insulation layer 140 surrounds the inner ring 610. The sound insulation layer 140 absorbs the noise generated by the motor 50, reducing ambient noise and improving the user experience.

[0049] Specifically, the sound insulation layer 140 is a ring-shaped element made of noise-reducing cotton. It is nested on the inner wall of the housing 10 and surrounds the motor 50. In the axial direction of the fan 40, the length of the sound insulation layer 140 is set to be no less than the length of the motor housing of the motor 50 to effectively absorb the noise generated by the motor 50 during operation. The material of the sound insulation layer 140 is not limited to noise-reducing cotton; it can also be made of sound insulation felt, polyester fiber sound-absorbing panels, or wave-shaped sound-absorbing sponge. The thickness of the sound insulation layer 140 is determined by the distance between the inner ring 610 and the inner wall of the housing 10.

[0050] On the basis of the hair dryer 100 of the above embodiment, an air inlet cover 120 is further provided on the air inlet 110, and an air inlet pipe 70 is connected to the air inlet cover 120. Figure 2 As shown, the air inlet 110 is provided with an air inlet cover 120 that is removably connected to the housing 10. The air inlet cover 120 is removably fixed to the housing 10 via bolts. The air inlet cover 120 serves to prevent foreign matter from entering the interior of the housing 10 and to prevent the user's fingers from accidentally reaching into the interior of the housing 10, thereby avoiding danger. The air inlet cover 120 comprises several mesh structures, through which outside air can enter the interior of the housing 10.

[0051] An air inlet duct 70 is also connected to the air inlet hood 120. Specifically, one end of the air inlet duct 70 is embedded in the air inlet hood 120 and communicates with the air inlet 110. When the fan 40 is driven by the motor 50, outside air not only enters the interior of the housing 10 through the mesh structure of the air inlet hood 120 but also enters the interior of the housing 10 through the air inlet duct 70. The convergence of these two flows creates a large air volume, providing greater air intake capacity. Furthermore, a handle 80 is connected to the other end of the air inlet duct 70 for the user to hold and operate. The air inlet duct 70 extends between the handle 80 and the housing 10 and has a certain length, thereby increasing the operating range of the hair dryer 100. The air inlet duct 70 is made of a hard, lightweight material, such as an aluminum pipe. The air inlet duct 70 or the handle 80 may be provided with an air inlet. After entering through the air inlet, outside air flows through the air inlet duct 70 and enters the interior of the housing 10.

[0052] In another embodiment, an air inlet cover 120 is provided on the air inlet 110, and a handle 80 is provided on the housing 10. That is, the air inlet cover 120 is not further connected to the air inlet pipe 70. When using the hair dryer 100, the user grasps the handle 80 and lifts the housing 10 connected to the air blowing pipe 20 to perform a hair drying operation.

[0053] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A hair dryer, characterized in that: include: a housing, wherein the housing is provided with an air inlet through which air enters; a motor, located inside the housing; a fan, driven by the motor to rotate around a rotation axis of the fan and generate an airflow; an air blowing pipe, sleeved on the housing and having an air outlet, through which the air flow is blown out; The duct is housed in the casing or the blow pipe, and the duct is located between the fan and the air outlet and is used to guide the airflow to move toward the air outlet. In the axial direction of the fan, the projection of the joint between the blow pipe and the casing in a plane parallel to the axial direction does not overlap with the projection of the duct in the plane, and the two ends of the duct are respectively limited by the casing and the blow pipe.

2. The hair dryer according to claim 1, characterized in that In the axial direction of the fan, two ends of the duct are respectively in contact with the casing and the blowing pipe.

3. The hair dryer according to claim 2, characterized in that The duct is accommodated in the blowing pipe, and the inner wall of the blowing pipe is provided with a step, and the step abuts against the duct.

4. The hair dryer according to claim 1, wherein The duct includes an inner guide cover, an outer guide cover, and stationary blades arranged between the inner guide cover and the outer guide cover. Two ends of the outer guide cover are respectively in contact with the casing and the blowing pipe.

5. The hair dryer according to claim 4, characterized in that The fan is at least partially located inside the guide cover of the duct.

6. The hair dryer according to claim 1, wherein The blowing pipe is sleeved on the casing, and the blowing pipe is detachably connected to the casing.

7. The hair dryer according to claim 6, characterized in that One of the blowing pipe and the housing is provided with a hook, and the other is provided with a slot, and the slot is connected to the hook.

8. The hair dryer according to claim 1, wherein The hair dryer further comprises a motor bracket for supporting the motor, wherein the motor bracket comprises an inner ring for fixing the motor and a plurality of supporting members connecting the inner ring and the housing, and the motor is fixed in the inner ring.

9. The hair dryer according to claim 8, characterized in that A sound insulation layer is provided on the inner wall of the housing facing the motor, and the sound insulation layer surrounds the inner ring.

10. The hair dryer according to claim 1, wherein An air inlet cover is provided on the air inlet, and an air inlet pipe is connected to the air inlet cover.

Images