A fan and a hair dryer

Abstract

The present application discloses a blower and a hair dryer, the blower comprising: an outer cylinder shell, the interior of which is hollowed along its axial direction to form a hollow cavity running through it, the outer cylinder shell having an air inlet port and an air outlet port; and an air outlet cover, which is detachably arranged at the air outlet port, and the air outlet cover is provided with an annular air outlet for air outlet; wherein, an annular guide rib extending along its circumference and toward the air inlet port is formed on the outer ring and / or the inner ring of the annular air outlet, and the annular guide rib is configured to gradually reduce the cross-section of the air flow near the annular air outlet, so as to make the air flow in the air outlet cover converge, thereby increasing the air outlet speed of the annular air outlet. In the above manner, the air outlet cover of the blower in the present application can make the air flow at the annular air outlet converge, so as to increase the air outlet speed, thereby effectively improving the hair drying efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning devices, and in particular to a water tank and an automatic cleaning device. Background Art

[0002] A hair dryer is a hairdressing tool that dries hair by generating wind with a specific temperature. An air outlet cover is provided at the air outlet port of the hair dryer, and an annular air outlet is provided on the air outlet cover. At present, the annular air outlet of the air outlet cover on the market has no air gathering effect, and the air is easily diffused, thereby slowing down the air outlet speed, thereby affecting the hair drying efficiency. Therefore, it is necessary to study a blower and a hair dryer. Summary of the invention

[0003] In view of the deficiencies in the above-mentioned technologies, the present application provides a fan and a hair dryer that can increase the air outlet speed.

[0004] In order to solve the above technical problems, the technical solution adopted in this application is:

[0005] A fan comprises: an outer cylinder shell, the interior of which is hollow along its axial direction to form a hollow cavity running through it, the outer cylinder shell having an air inlet port and an air outlet port; and an air outlet hood, which is detachably arranged on the air outlet port, and the air outlet hood is provided with an annular air outlet for air outlet; wherein the outer ring and / or the inner ring of the annular air outlet are formed with annular guide ribs extending along the circumference thereof and toward the air inlet port, and the annular guide ribs are configured to gradually reduce the air flow cross-section near the annular air outlet, so as to make the air flow in the air outlet hood cohere, thereby increasing the air outlet speed of the annular air outlet.

[0006] Preferably, the annular guide rib arranged on the outer ring of the annular air outlet is a first annular guide rib, and the annular guide rib arranged on the inner ring of the annular air outlet is a second annular guide rib; wherein, in the direction from the air inlet port to the air outlet port, the inner diameter of the first annular guide rib is gradually decreasing, and the outer diameter of the second annular guide rib is gradually increasing.

[0007] Preferably, at least one first inclined area section is provided on the inner wall of the first annular guide rib, which forms an angle α with the axial direction of the air outlet hood, so as to make the airflow in the air outlet hood cohesive; wherein the value range of the angle α is: 0°≤α≤60°.

[0008] Preferably, at least one second inclined area section is provided on the outer wall of the second annular guide rib, which forms an angle β with the axial direction of the air outlet hood, so as to make the airflow in the air outlet hood cohesive; wherein the value range of the angle β is: 0°≤α≤12°.

[0009] Preferably, the air outlet hood has an inner end face and an outer end face which are arranged opposite to each other, the inner end face is provided with the annular guide rib, and the center of the outer end face is provided with a groove, which is configured for installing the indicator light assembly, wherein the annular air outlet is distributed in an annular manner on the periphery of the groove.

[0010] Preferably, the indicator light assembly comprises a control panel provided with the indicator light and a lampshade, wherein the control panel is arranged in the lampshade and assembled into a whole with the lampshade, wherein the lampshade is detachably arranged in the groove.

[0011] Preferably, an air nozzle is provided at the air outlet port, the air outlet port has a first clip-on structure, and the air nozzle has a second clip-on structure matching with the first clip-on structure; wherein, after the air nozzle is clipped to the air outlet port through the matching clip-on structure between the second clip-on structure and the first clip-on structure, it can rotate relative to the outer cylinder shell.

[0012] Preferably, the first snap-fitting structure includes a flange formed at the air outlet port and a rib formed on the outer periphery of the end surface of the air outlet cover, wherein the flange grows radially along the air outlet port and inward, the rib grows axially along the air outlet port and abuts against the flange, and the inner circle aperture of the flange is smaller than the inner circle aperture of the rib to form a snap-fitting space; the second snap-fitting structure includes a snap-fitting edge formed on the air nozzle, and the snap-fitting edge is configured to cooperate with the snap-fitting space.

[0013] Preferably, the wall surface of the air nozzle is symmetrically provided with inwardly contracted curved surfaces so that the air nozzle has a flat air outlet and a round air inlet; the air nozzle comprises an inner shell and an outer shell, the outer shell is sleeved on the outer circumference of the inner shell, wherein a connecting structure is provided on the area segment of the round opening of the outer shell corresponding to the curved surface, and the connecting structure is configured to be used for ultrasonic welding of the inner shell and the outer shell.

[0014] In order to solve the above technical problems, another technical solution adopted by this application is:

[0015] An electric hair dryer comprises the blower as described above.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] The fan and hair dryer provided in the present application have an air outlet cover based on an annular air outlet, and annular guide ribs are formed on the outer ring and / or inner ring of the annular air outlet, thereby effectively increasing the air outlet speed of the annular air outlet, avoiding air flow diffusion at the annular air outlet, and effectively improving the hair drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic diagram of the connection relationship between the outer cylinder shell and the air outlet cover in this application;

[0019] Figure 2 It is a schematic diagram of the structure of the air outlet hood in this application;

[0020] Figure 3 It is a structural schematic diagram of an air outlet hood in an embodiment of the present application;

[0021] Figure 4 It is a cross-sectional schematic diagram of an embodiment of an air outlet hood in the present application;

[0022] Figure 5 is a cross-sectional schematic diagram of the outer cylinder shell in the present application;

[0023] Figure 6 yes Figure 1 Schematic diagram of the enlarged structure of the A area in the middle;

[0024] Figure 7 It is a schematic diagram of the positional relationship between the outer cylinder shell and the air nozzle in the present application;

[0025] Figure 8 It is an exploded schematic diagram of the outer cylinder shell and the air nozzle in this application;

[0026] Fig. 9 is a schematic diagram of the structure of the indicator light assembly in this application;

[0027] Fig.10 It is a schematic diagram of the structure of the air nozzle in this application;

[0028] Fig.11 It is a schematic diagram of the exploded structure of the air nozzle in this application;

[0029] Fig.12 yes Fig.11 Schematic diagram of the enlarged structure of the middle B area;

[0030] Fig.13 It is a schematic diagram of the main viewing direction of the circular opening of the shell in this application. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the text of the specification. If there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0032] In the description of this application, it is also necessary to explain that, unless otherwise specified and limited, the terms "disposed" and "connected" should be understood in a broader sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0033] In addition, if the meaning of "and / or" appears in this application, it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope required by this application.

[0034] Hair dryers dry wet hair by generating wind with a specific temperature. Hair drying efficiency is the main indicator to measure the performance of hair dryers. When the hair dryer is powered on, the motor drives the impeller to rotate, sucking air from the air inlet port, heating it through the electric heating element, and blowing it out from the air outlet port after forming hot air. At present, the annular air outlet of the air outlet hood on the market has no air gathering effect, and the air is easily diffused, which slows down the air outlet speed and affects the hair drying efficiency.

[0035] In view of this, the present application provides a fan, see Figures 1 to 5 , Figure 1 Schematic diagram of the connection relationship between the outer cylinder shell 100 and the air outlet cover 200 in this application, Figure 2 is a schematic diagram of the structure of the air outlet cover 200 in this application, Figure 3 and Figure 4 This is a schematic diagram of an embodiment of an air outlet hood 200 in the present application, wherein the fan comprises: an outer cylinder shell 100, the interior of which is hollow along its axial direction to form a hollow cavity running through it, the outer cylinder shell 100 having an air inlet port 110 and an air outlet port 120; and an air outlet hood 200, which is detachably arranged on the air outlet port 120, and the air outlet hood 200 is provided with an annular air port 210 for air outlet; wherein, an annular guide rib 220 is formed on the outer ring and / or the inner ring of the annular air port 210, and extends along its circumference and toward the air inlet port 110, and the annular guide rib 220 is configured to gradually reduce the air flow cross-section near the annular air port 210, so as to make the air flow in the air outlet hood 200 cohesive, thereby increasing the air outlet speed of the annular air port 210.

[0036] Through the above method, the annular air outlet 210 of the air outlet hood 200 in the present application is provided with an annular guide rib 220 that can make the air flow converge, thereby accelerating the air outlet speed of the annular air outlet 210, avoiding the air flow from diffusing at the annular air outlet 210, and effectively improving the hair drying efficiency.

[0037] Furthermore, the annular air outlet 210 in the present application is provided with a plurality of uniform wind ribs distributed along its radial direction, and the uniform wind ribs are distributed on the annular air outlet 210 in a circular array. It can be understood that annular guide ribs 220 are formed on the outer ring and / or inner ring of the annular air outlet 210, including three parallel situations: first, the annular guide ribs 220 are only provided on the outer ring of the annular air outlet 210, second, the annular guide ribs 220 are only provided on the inner ring of the annular air outlet 210, and third, the annular guide ribs 220 are provided on both the outer ring and the inner ring of the annular air outlet 210. The preferred arrangement of the annular guide ribs 220 is to provide them on both the outer ring and the inner ring of the annular air outlet 210, please refer to Figure 3 and Figure 4 Under this arrangement, the airflow in the air outlet cover 200 can be more easily cohesive, and the cohesive effect is good.

[0038] Specifically, the annular guide rib 220 is divided into a first annular guide rib 221 and a second annular guide rib 222 according to different setting positions. Figure 3 and Figure 4 The annular guide rib 220 disposed on the outer circle of the annular air outlet 210 is the first annular guide rib 221, and the annular guide rib 220 disposed on the inner circle of the annular air outlet 210 is the second annular guide rib 222; the first annular guide rib 221 and the second annular guide rib 222 are both formed into a full ring shape by rotating 360° around the central axis X of the air outlet cover 200. In the direction from the air inlet port 110 to the air outlet port 120, the inner diameter of the first annular guide rib 221 is gradually reduced, and the outer diameter of the second annular guide rib 222 is gradually increased.

[0039] Furthermore, at least one first inclined region 2211 is provided on the inner wall of the first annular guide rib 221, which is at an angle α to the axial direction of the air outlet hood 200, so as to make the airflow in the air outlet hood 200 converge; at least one second inclined region 2221 is provided on the outer wall of the second annular guide rib 222, which is at an angle β to the axial direction of the air outlet hood 200, so as to make the airflow in the air outlet hood 200 converge; wherein, the value range of the angle α is: 0°≤α≤60°, and the value range of the angle β is: 0°≤α≤12°. Specifically, the projections of the first inclined region 2211 and the second inclined region 2221 on the vertical plane passing through the central axis X of the air outlet hood 200 can be straight line segments or arc segments; the angle between the arc segment and the axial direction of the air outlet hood 200 is defined as the angle between the line connecting the starting point and the end point of the arc segment and the central axis X.

[0040] Furthermore, the fan is also provided with an indicator light assembly 300, which is used to indicate whether the negative ion generator is in working state. Fig. 9 The indicator light assembly 300 includes a control panel 310 and a lampshade 320 provided with an indicator light. The control panel 310 is provided in the lampshade 320 and assembled into a whole with the lampshade 320. The lampshade 320 is made of a light-transmitting material. When the control panel 310 is powered on, the indicator light illuminates the lampshade 320, and a light effect showing the shape of the lampshade 320 can be provided. The shape of the lampshade 320 can be a circular ring, an elliptical ring, a circle, an ellipse or other shapes, which are not further limited here.

[0041] Specifically, in order to make the light display position of the indicator light assembly 300 more obvious and to facilitate installation, the indicator light assembly 300 is installed on the air outlet cover 200. Figure 2 and Figure 3 Combined with Figure 8 The air outlet cover 200 has an inner end face and an outer end face facing each other, an annular guide rib 220 is arranged on the inner end face, a groove 230 is arranged in the center of the outer end face, and the annular air outlet 210 is distributed in an annular manner on the outer periphery of the groove 230. The groove 230 is configured to be used for installing the indicator light assembly 300, so that the indicator light is displayed on the front face of the outer cylinder shell 100 close to the user, the position is obvious, and the lighting effect is good. The shape and size of the groove 230 match the shape and size of the indicator light assembly 300. The indicator light assembly 300 and the groove 230 are connected in a detachable manner. It can be understood that the indicator light assembly 300 and the groove 230 can be connected by a buckle structure or by screws. In order to facilitate installation, in this application, the indicator light assembly 300 and the groove 230 are connected by a buckle structure, wherein the buckle structure includes a buckle 321 arranged on the lampshade 320 and a bayonet 231 arranged in the groove 230 and matched with the buckle 321.

[0042] For further information, see Figure 7 and Figure 8 The fan is also provided with a nozzle 400, which is arranged at the air outlet port 120 and is used to constrain the wind pattern. In order to make the installation of the nozzle 400 and the outer cylinder shell 100 more convenient, the nozzle 400 and the outer cylinder shell 100 are connected by a snap-fitting method, wherein the air outlet port 120 has a first snap-fitting structure, and the nozzle 400 has a second snap-fitting structure that matches the first snap-fitting structure. After the nozzle 400 is snap-fitted to the air outlet port 120 through the cooperation between the second snap-fitting structure and the first snap-fitting structure, it can be rotated 360° relative to the outer cylinder shell 100. When the nozzle 400 needs to be removed from the outer cylinder shell 100, it can be removed by applying a certain axial pulling force on the nozzle 400.

[0043] Specifically, see Figure 5 and Figure 6 The first clamping structure includes a flange 121 formed at the air outlet port 120 and a rib 240 formed on the outer periphery of the end surface of the air outlet cover 200, wherein the flange 121 grows radially along the air outlet port 120 and inwardly, the rib 240 grows axially along the air outlet port 120 and abuts against the flange 121, and the inner circle aperture of the flange 121 is smaller than the inner circle aperture of the rib 240 to form a clamping space; please refer to Fig.10 and Fig.11 The second clamping structure includes a clamping edge 440 formed on the air nozzle 400, and the clamping edge 440 is configured to cooperate with the buckle space. The wall surface of the air nozzle 400 is symmetrically provided with an inwardly contracted curved surface 430, so that the air nozzle 400 has a flat air outlet and a round air inlet, and the clamping edge 440 is arranged at the edge of the air inlet of the air nozzle 400.

[0044] Furthermore, considering the effects of anti-scalding and wind gathering, the air nozzle 400 is designed as a double-layer structure. The air nozzle 400 includes an inner shell 410 and an outer shell 420, the outer shell 420 is sleeved on the outer periphery of the inner shell 410, the inner shell 410 and the outer shell 420 are similar in shape, both having a flat air outlet and a round air inlet, the clamping edge 440 can be located at the air inlet of the outer shell 420, or at the air inlet of the inner shell 410, and in the present application, the clamping edge 440 is a pair of arc-shaped convex edges symmetrically arranged at the air inlet of the inner shell 410.

[0045] Furthermore, in order to ensure that the inner shell 410 and the outer shell 420 have better connection reliability and stability, it is necessary to set up a connection structure 450 to realize the fixed connection between the inner shell 410 and the outer shell 420. Considering the appearance effect after the inner shell 410 and the outer shell 420 are connected and matched, ultrasonic welding is used between the inner shell 410 and the outer shell 420. Therefore, the above-mentioned connection structure 450 is configured to be used for ultrasonic welding of the inner shell 410 and the outer shell 420.

[0046] Specifically, the connection structure 450 is located on the area of ​​the round opening of the housing 420 corresponding to the curved surface 430, see Fig.12 The connection structure 450 includes a welding groove 451 and a welding rib 452 formed on the round opening of the housing 420, and the welding groove 451 and the welding rib 452 are arranged adjacent to each other. Fig.13 The welding groove 451 is arranged on the circular opening of the outer shell 420 in a centrally symmetrical manner. The central angle of the area where the welding groove 451 is located is M, and the size of the central angle M is 80°. The welding rib 452 is arranged within the area where the welding groove 451 is located. The welding rib 452 can be a single continuous section, or multiple sections are evenly or unevenly arranged within this range. The outer wall of the inner shell 410 near the circular opening is provided with an annular welding edge 411 growing along its radial direction. The welding edge 411 is used to cooperate with the connecting structure 450 to achieve the fixed connection between the inner shell 410 and the outer shell 420.

[0047] It can be understood that the fan in the present application can be applied to different usage scenarios, which are explained with examples below.

[0048] The blower in the present application can be applied to a hair dryer, which includes the blower and a handle connected to the blower, the handle being located below the blower and used to support the blower. The handle has a built-in negative ion generator, and an emission pin electrically connected to the negative ion generator is provided inside the blower, the emission pin is connected to the negative ion generator through a wire, and when the negative ion generator is started, the indicator light of the indicator light assembly 300 emits a bright light, which can display a light effect in the shape of the lampshade 320.

[0049] It can be understood that the above specific applications are merely examples of the fans in this application, and those skilled in the art can make adaptive adjustments according to actual conditions, which will not be elaborated here.

[0050] In summary, the air outlet hood in the present application is based on the annular air outlet, and an annular guide rib is formed on the outer ring and / or inner ring of the annular air outlet, thereby effectively accelerating the air outlet speed of the annular air outlet, avoiding the diffusion of airflow at the annular air outlet, and effectively improving the hair drying efficiency. The control panel of the indicator light assembly is assembled into a whole with the lampshade and is arranged on the air outlet hood through the lampshade. The indicator light can be displayed on the front face of the outer cylinder shell close to the user, which is easy to install, has an obvious position, and has a good lighting effect. The air nozzle and the outer cylinder shell are connected by a snap-on method, which has the advantage of easy installation; the air nozzle is designed as a double-layer structure, which can effectively improve the anti-scalding and wind gathering effects.

[0051] Although the implementation scheme of the present application has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes, and it can be fully applicable to various fields suitable for the present application. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present application is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A fan, characterized in that: include: An outer cylindrical shell, the interior of which is hollowed out along its axial direction to form a hollow cavity running through it, and the outer cylindrical shell has an air inlet port and an air outlet port; as well as An air outlet cover is detachably arranged on the air outlet port, and an annular air outlet for air outlet is arranged on the air outlet cover; Wherein, an annular guide rib extending along the circumference thereof and toward the air inlet port is formed on the outer ring and / or the inner ring of the annular air outlet, and the annular guide rib is configured to gradually reduce the air flow cross section near the annular air outlet, so as to make the air flow in the air outlet cover cohesive, thereby increasing the air outlet speed of the annular air outlet; The air outlet port is provided with an air nozzle, the air outlet port has a first clamping structure, and the air nozzle has a second clamping structure matched with the first clamping structure; The first clamping structure includes a flange formed at the air outlet port and a convex rib formed on the outer periphery of the end surface of the air outlet cover, wherein the flange grows inwardly along the radial direction of the air outlet port, the convex rib grows in the axial direction of the air outlet port and abuts against the flange, and the inner circle aperture of the flange is smaller than the inner circle aperture of the convex rib to form a clamping space; The second clamping structure includes a clamping edge formed on the air nozzle, and the clamping edge is configured to cooperate with the clamping space. The air outlet cover comprises an outer end surface, a groove is arranged at the center of the outer end surface, and the annular air outlet is distributed in an annular manner on the outer periphery of the groove.

2. The fan according to claim 1, characterized in that: The annular guide ribs arranged on the outer ring of the annular tuyere are first annular guide ribs, and the annular guide ribs arranged on the inner ring of the annular tuyere are second annular guide ribs; Wherein, in the direction from the air inlet port to the air outlet port, the inner diameter of the first annular guide rib is gradually decreasing, and the outer diameter of the second annular guide rib is gradually increasing.

3. The fan according to claim 2, characterized in that: At least one first inclined region section is provided on the inner wall of the first annular guide rib, which forms an angle α with the axial direction of the air outlet cover, so as to make the airflow in the air outlet cover converge; The value range of the angle α is: 0°≤α≤60°.

4. The fan according to claim 2, characterized in that: At least one second inclined region section is provided on the outer wall of the second annular guide rib, which forms an angle β with the axial direction of the air outlet cover, so as to make the airflow in the air outlet cover converge; The value range of the angle β is: 0°≤α≤12°.

5. The fan according to claim 1, characterized in that: The air outlet cover has an inner end surface and an outer end surface which are arranged opposite to each other, the inner end surface is provided with the annular guide rib, and the groove is configured to be used for installing the indicator light assembly.

6. The fan according to claim 5, characterized in that: The indicator light assembly comprises a control panel provided with an indicator light and a lampshade, wherein the control panel is arranged in the lampshade and assembled with the lampshade into a whole, wherein the lampshade is detachably arranged in the groove.

7. The fan according to claim 1, characterized in that: After the air nozzle is clamped to the air outlet port through the cooperation between the second clamping structure and the first clamping structure, it can rotate relative to the outer cylinder shell.

8. The fan according to claim 1, characterized in that: The wall surface of the air nozzle is symmetrically provided with inwardly contracted curved surfaces, so that the air nozzle has a flat air outlet and a round air inlet; The nozzle comprises an inner shell and an outer shell, wherein the outer shell is sleeved on the outer circumference of the inner shell, wherein a connecting structure is provided on the area section of the circular opening of the outer shell corresponding to the curved surface, and the connecting structure is configured to be used for ultrasonic welding of the inner shell and the outer shell.

9. A hair dryer, characterized in that: Comprising a fan as claimed in any one of claims 1 to 8.

Images