Blowing device

Abstract

The utility model discloses a blowing device. The air blowing device comprises an air blowing body and a control part, the air blowing body comprises a body inner shell and a body outer shell which are arranged in an inner-outer sleeving mode, a secondary fluid channel is defined by the inner wall face of the body inner shell and penetrates through the air blowing body in the first direction a, and an annular cavity is formed between the body inner shell and the body outer shell; and the airflow flowing through the secondary fluid channel passes through the control piece. According to the air blowing device, the airflow flowing through the secondary fluid channel passes through the control piece, heat dissipation of the control piece can be accelerated through the airflow, the heat dissipation performance of the control panel is improved, the aging efficiency of the control panel is delayed, and the service life of the control panel is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to life utensil technical field especially, and it is a kind of blowing device. BACKGROUND

[0002] Hair dryer is the indispensable life utensil in people's daily life for nursing hair, and high-speed hair dryer is widely welcomed due to its unique modeling and good hair blowing effect. The high-speed hair dryer includes a control panel for controlling the operation of its electric control components. The existing high-speed hair dryer has the problem of low heat dissipation efficiency of the control panel during use. The low heat dissipation efficiency of the control panel accelerates its aging and affects its service life.

[0003] Therefore, how to provide a hair dryer capable of improving heat dissipation efficiency is a technical problem to be solved at present. INVENTION CONTENTS

[0004] The utility model aims at providing a blowing device, and the control panel of the blowing device has good heat dissipation performance, low aging efficiency and long service life.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A blowing device includes: a blowing main body, the blowing main body includes a main body inner shell and a main body outer shell which are sleeved, the inner wall surface of the main body inner shell surrounds to form a secondary fluid passage, the secondary fluid passage penetrates the blowing main body along a first direction a, and an annular cavity is formed between the main body inner shell and the main body outer shell; a control member, the control member includes a control panel, and airflow flowing through the secondary fluid passage passes through the control member.

[0007] Preferably, the blowing device further includes a heating member, the heating member is arranged in the annular cavity, and the control member is arranged outside the annular cavity.

[0008] Preferably, the control member is arranged in the secondary fluid passage.

[0009] Preferably, the control member is located at a secondary fluid inlet of the secondary fluid passage, or the control member is located at an intermediate position of the secondary fluid passage.

[0010] Preferably, the control member further includes a mounting box, the control panel is arranged in the mounting box, at least one first air inlet passage is formed between the mounting box and the main body inner shell, and the cross-sectional area of the first air inlet passage in the direction perpendicular to the first direction a is smaller than the cross-sectional area of the secondary fluid passage in the direction perpendicular to the first direction a.

[0011] As preferred, the control member further comprises a mounting box, the control board is arranged in the mounting box, and the mounting box is arranged in a hole structure so that the airflow flowing through the secondary fluid passage enters the inside of the mounting box and passes through the control board.

[0012] As preferred, the mounting box comprises a box body, the box body comprises a containing portion and a spoiler portion protruding outside the containing portion, the containing portion is used for containing the control board, and the airflow flowing through the spoiler portion becomes a spiral airflow.

[0013] As preferred, the mounting box further comprises a cover plate, the cover plate is arranged at the opening of the box body; the cover plate is arranged on the containing portion, and the cover plate is arranged in a spaced manner with the inner wall surface of the main body inner shell; or the cover plate is in abutment with the inner wall surface of the main body inner shell, and the cover plate is provided with an air hole in the first direction a, the air hole at least partially avoids the spoiler portion.

[0014] As preferred, the air hole is at least one of an arc-shaped hole, a circular hole, and an elliptical hole, the arc-shaped hole is arranged in a manner of extending along an arc line; and / or, a plurality of air holes are arranged in a circular manner.

[0015] As preferred, a plurality of spoiler portions are arranged in a spaced manner in the circumferential direction of the box body; and / or, a wire passing structure is arranged on the spoiler portion.

[0016] As preferred, the control member is arranged at the air inlet end of the hair dryer main body in the first direction a.

[0017] As preferred, the control member further comprises a mounting box; the mounting box is an annular cylindrical structure in communication with the secondary fluid passage, and the control board is arranged in the mounting box; or the extension length of the main body inner shell in the first direction a is less than the extension length of the main body outer shell in the first direction a, the mounting box is arranged in the part of the main body outer shell protruding from the main body inner shell and cooperates with part of the main body outer shell to form an annular cylindrical structure; or the extension length of the main body inner shell in the first direction a is greater than the extension length of the main body outer shell in the first direction a, and the mounting box is arranged outside the main body inner shell and cooperates with part of the main body inner shell to form an annular cylindrical structure.

[0018] As preferred, the mounting box comprises at least one of an annular inner wall plate and an annular outer wall plate, and an annular outer end plate, the annular inner wall plate and the annular outer wall plate are sleeved inside and outside, the annular outer end plate is connected between the annular inner wall plate and the annular outer wall plate, the annular inner wall plate is provided with a first air hole; the annular outer wall plate is provided with a second air hole, the second air hole, the cavity of the mounting box and the first air hole are sequentially communicated and form a second air inlet channel communicated with the secondary fluid channel; and / or, the annular outer end plate is provided with a third air hole, the third air hole, the cavity of the mounting box and the first air hole are sequentially communicated and form a third air inlet channel communicated with the secondary fluid channel.

[0019] As preferred, the mounting box comprises at least one of an annular inner wall plate and an annular outer wall plate, and an annular outer end plate, the annular inner wall plate and the annular outer wall plate are sleeved inside and outside, the annular outer end plate is connected between the annular inner wall plate and the annular outer wall plate, the annular inner wall plate is provided with a first air hole; the annular outer wall plate is provided with a second air hole, the second air hole, the cavity of the mounting box and the first air hole are sequentially communicated and form a second air inlet channel communicated with the secondary fluid channel; and / or, the annular outer end plate is provided with a third air hole, the third air hole, the cavity of the mounting box and the first air hole are sequentially communicated and form a third air inlet channel communicated with the secondary fluid channel.

[0020] As preferred, the mounting box comprises at least one of an annular inner wall plate and an annular outer wall plate, and an annular outer end plate, the annular inner wall plate and the annular outer wall plate are sleeved inside and outside, the annular outer end plate is connected between the annular inner wall plate and the annular outer wall plate, the annular inner wall plate is provided with a first air hole; the annular outer wall plate is provided with a second air hole, the second air hole, the cavity of the mounting box and the first air hole are sequentially communicated and form a second air inlet channel communicated with the secondary fluid channel; and / or, the annular outer end plate is provided with a third air hole, the third air hole, the cavity of the mounting box and the first air hole are sequentially communicated and form a third air inlet channel communicated with the secondary fluid channel.

[0021] As preferred, the mounting box comprises at least one of an annular inner wall plate and an annular outer wall plate, and an annular outer end plate, the annular inner wall plate and the annular outer wall plate are sleeved inside and outside, the annular outer end plate is connected between the annular inner wall plate and the annular outer wall plate, the annular inner wall plate is provided with a first air hole; the annular outer wall plate is provided with a second air hole, the second air hole, the cavity of the mounting box and the first air hole are sequentially communicated and form a second air inlet channel communicated with the secondary fluid channel; and / or, the annular outer end plate is provided with a third air hole, the third air hole, the cavity of the mounting box and the first air hole are sequentially communicated and form a third air inlet channel communicated with the secondary fluid channel.

[0022] The utility model discloses beneficial effect:

[0023] The blowing device provided by the utility model discloses a blowing main body and a control part, the blowing main body includes a main body inner shell and a main body outer shell which are sleeved, the inner wall surface of the main body inner shell is surrounded to form a secondary fluid channel, the secondary fluid channel penetrates the blowing main body along a first direction a, an annular cavity is formed between the main body inner shell and the main body outer shell, the control part includes a control panel, and the airflow flowing through the secondary fluid channel passes through the control part. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the cross section view of the blowing device provided by the utility model embodiment one;

[0025] Figure 2 It is the explosion drawing of the blowing device provided by the utility model embodiment one;

[0026] Figure 3 It is the schematic diagram of the box body provided by the utility model embodiment one;

[0027] Figure 4 It is the schematic diagram of the cover plate provided by the utility model embodiment one;

[0028] Figure 5 It is the cross section view of the blowing device provided by the utility model embodiment two;

[0029] Figure 6 It is the cross section view of the blowing device provided by the utility model embodiment three;

[0030] Figure 7 It is the cross section view of the blowing device provided by the utility model embodiment four;

[0031] Figure 8 It is the explosion drawing of the blowing device provided by the utility model embodiment four;

[0032] Figure 9 It is the schematic diagram of the mounting box provided by the utility model embodiment four;

[0033] Figure 10 It is the cross section view of the blowing device provided by the utility model embodiment five;

[0034] Figure 11 It is the explosion drawing of the blowing device provided by the utility model embodiment five;

[0035] Figure 12 It is the schematic diagram of the mounting box provided by the utility model embodiment five;

[0036] Figure 13is a cross-sectional view of the blowing device provided by the embodiment six of the utility model;

[0037] Figure 14 is an explosion view of the blowing device provided by the embodiment six of the utility model;

[0038] Figure 15 is a schematic view of the box body provided by the embodiment six of the utility model;

[0039] Figure 16 is a schematic view of the box body provided by the embodiment six of the utility model from another perspective.

[0040] In the figure:

[0041] 100, blowing main body; 110, main body inner shell; 111, first columnar section; 112, conical section; 113, second columnar section; 114, plug-in slot; 120, main body outer shell; 130, flow guide structure; 140, exhaust cover; 150, annular end plate; 151, plug-in hole; 101, secondary fluid channel; 102, annular cavity;

[0042] 200, heating piece;

[0043] 300, control piece; 310, control board; 320, installation box; 321, box body; 3211, containing part; 3212, spoiler part; 3213, wire passing structure; 3201, annular inner wall plate; 3202, annular outer wall plate; 3203, annular outer end plate; 3204, first air hole; 3205, second air hole; 3206, third air hole; 3207, annular bottom plate; 3208, plug-in column; 322, cover plate; 3221, air hole; 301, first air inlet channel; 302, second air inlet channel; 303, third air inlet channel; 304, third air inlet channel;

[0044] 400, handle; 401, handle flow channel; 402, main air inlet;

[0045] 500, motor;

[0046] 600, power cord. DETAILED DESCRIPTION

[0047] The utility model will be further explained in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described here are only used to explain the utility model, and not limited to the utility model. In addition, it needs to be explained that in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0048] In the description of the utility model, unless another definite provision and limitation, the term "link", "connect", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two element internal communication or two element mutual action relationship.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0049] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional features between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.

[0050] In the description of the embodiment, the terms "up", "down", "right", etc. Orientation or position relationship is based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0051] Embodiment one:

[0052] The utility model provides a kind of hair dryer, the hair dryer can generate airflow, using the airflow can carry out blow dry hair etc. Operation.Of course, the hair dryer is used in addition to blow dry hair, can also be used to blow other objects.

[0053] In the embodiment, as Figures 1 to 4As shown, the hair dryer comprises a hair dryer body 100 and a control member 300. The hair dryer body 100 comprises a body inner shell 110 and a body outer shell 120, which are arranged in a nested manner, and optionally, the body inner shell 110 and the body outer shell 120 are arranged in a concentric manner. The inner wall surface of the body inner shell 110 is arranged to form a secondary fluid passage 101, the secondary fluid passage 101 extends through the hair dryer body 100 along a first direction a, and an annular cavity 102 is formed between the body inner shell 110 and the body outer shell 120. The secondary fluid passage 101 forms a secondary fluid inlet at one end of the hair dryer body 100 along the first direction a and a secondary fluid outlet at the other end of the hair dryer body 100 along the first direction a. Air outside the hair dryer body 100 enters the secondary fluid passage 101 through the secondary fluid inlet to form a secondary air flow, and the secondary air flow is finally discharged from the secondary fluid outlet. The hair dryer body 100 has an air inlet end and an air outlet end along the first direction a, the air inlet end is the end forming the secondary fluid inlet, and the air outlet end is the end forming the secondary fluid outlet.

[0054] The control member 300 comprises a control board 310, and the air flow passing through the secondary fluid passage 101 passes through the control member 300. The control board 310 is a main heat generating component of the hair dryer, and a large amount of heat is generated during the operation of the control board 310. The hair dryer makes the secondary air flow passing through the secondary fluid passage 101 pass through the control member 300, uses the secondary air flow to accelerate the heat dissipation of the control member 300, improves the heat dissipation efficiency and heat dissipation performance of the control board 310, makes the environment temperature of the control board 310 lower, compared with the prior art in which the control board is in a high temperature environment for a long time, being in a lower temperature environment can delay the aging efficiency of the control board 310, thereby prolonging the service life of the control board 310. And being in a high temperature environment makes the control board 310 prone to failure, being in a lower temperature environment is beneficial to improve the working stability of the control board 310 and reduce the failure rate.

[0055] Optionally, the body inner shell 110 and the body outer shell 120 are both cylindrical structures arranged along the first direction a, and the extension length of the body inner shell 110 along the first direction a is equal to the extension length of the body outer shell 120 along the first direction a, and the two ends of the body inner shell 110 and the body outer shell 120 along the first direction a are substantially aligned, respectively.

[0056] In this embodiment, the hair dryer is provided with a main fluid passage in addition to the secondary fluid passage 101, the air flow passing through the main fluid passage is a main air flow, and the air outlets of the main air flow and the secondary air flow are in the same direction and can both be used for drying hair.

[0057] Continuing to refer to Figure 1As shown, the hair dryer further comprises a handle 400, which is arranged to extend along a second direction b. Optionally, the first direction a is perpendicular to the second direction b. The main fluid passage comprises a ring-shaped cavity 102 arranged in the hair dryer body 100 and a handle flow passage 401 arranged in the handle 400, which is in communication with the ring-shaped cavity 102. In one specific embodiment, the handle 400 is a hollow structure, and the inner wall surface of the handle 400 forms the handle flow passage 401. A plurality of main air inlets 402 are arranged at the end of the handle 400 away from the hair dryer body 100. Optionally, the plurality of main air inlets 402 are arranged in multiple rows at the end of the handle 400, and each row comprises a plurality of main air inlets 402.

[0058] The ring-shaped cavity 102 arranged on the hair dryer body 100 extends along the first direction a, and one end of the ring-shaped cavity 102 is closed, and the other end is not closed to form a main air outlet. A motor 500 is further arranged in the handle 400. Under the driving of the motor 500, air enters the handle flow passage 401 in the handle 400 from the main air inlets 402 and forms a main airflow, which flows into the ring-shaped cavity 102 according to the direction shown in Figure 1

[0059] Figure 1 Figure 2 As shown, the hair dryer further comprises a heating element 200 arranged in the ring-shaped cavity 102 and a control element 300 arranged outside the ring-shaped cavity 102. Optionally, the heating element 200 is an electric heating wire or an electric heating plate, which can comprise a ring-shaped plate and a plurality of heating fins outwardly protruding along the circumference of the ring-shaped plate. Optionally, a power cord 600 is further arranged at the handle 400, which is electrically connected with the heating element 200, the motor 500, and the control board 310, etc. to supply power to the heating element 200, the motor 500, and the control board 310.

[0060] Figure 1 Figure 2 ​​​​​As shown, the annular cavity 102 is provided with a flow guide structure 130, which is used to guide the main airflow entering the annular cavity 102 from the handle flow channel 401 to the heating element 200 and mix uniformly. Optionally, the flow guide structure 130 is arranged between the heating element 200 and the control element 300, so that the flow guide structure 130 can have the effect of isolating the heat generated by the heating element 200 from being transmitted to the control element 300. Further, a heat insulation element is arranged between the flow guide structure 130 and the control element 300 to further reduce the heat transmission to the control element 300. Optionally, the heat insulation element can be a heat insulation plate.

[0061] In one specific embodiment, the flow guide structure 130 is integrally formed with the main body inner shell 110; in one specific embodiment, the flow guide structure 130 is integrally formed with the main body outer shell 120; in one specific embodiment, the flow guide structure 130 is integrally formed with both the main body inner shell 110 and the main body outer shell 120; in one specific embodiment, the flow guide structure 130 is an independent structure independent of the main body inner shell 110 and the main body outer shell 120.

[0062] Optionally, the flow guide structure 130 is an annular flow guide plate, which is arranged inclinedly relative to the central axis of the main body inner shell 110, and in the direction from the handle 400 to the blowing body 100, the flow guide structure 130 is arranged inclinedly towards the heating element 200. Of course, in other embodiments, the flow guide structure 130 can also be arranged in other shapes according to requirements.

[0063] Continuing to refer to Figure 1 and Figure 2 As shown, an exhaust cover 140 is arranged at the main air outlet in the annular cavity 102, which is used for exhaust. Optionally, the exhaust cover 140 includes an inner ring rib plate, an outer ring rib plate, and a plurality of connecting rib strips, the inner ring rib plate and the outer ring rib plate are arranged in nested relationship, and the connecting rib strips are connected between the inner ring rib plate and the outer ring rib plate. Such arrangement not only does not affect the smoothness of exhaust, but also can play a protective role to avoid the user's fingers from contacting the heating element 200 to cause burns.

[0064] In order to realize that the secondary airflow flowing through the secondary fluid passage 101 passes through the control element 300, continuing to refer to Figure 1 and Figure 2 As shown, the control element 300 is directly arranged in the secondary fluid passage 101. In this embodiment, the control element 300 is located at the secondary fluid inlet of the secondary fluid passage 101. Such arrangement makes the control element 300 far away from the heating element 200, further reducing the influence of the heating element 200 on the heat dissipation performance of the control plate 310.

[0065] Continuing to refer to Figures 1 to 3As shown, the control member 300 further comprises a mounting box 320 for mounting and protecting the control board 310, and the control board 310 is arranged in the mounting box 320. Optionally, the mounting box 320 is a closed structure, so that the air flow passing through the secondary fluid passage 101 cannot enter the mounting box 320, but only flows along the outer wall of the mounting box 320. Optionally, the mounting box 320 is provided as an open structure, so that the air flow passing through the secondary fluid passage 101 enters the inside of the mounting box 320 and passes through the control board 310.

[0066] It should be noted that in the embodiments of the present application, the secondary air flow passing through the secondary fluid passage 101 through the control member 300 includes two cases: the first case is that the secondary air flow passes through the mounting box 320, so that the cold air around the mounting box 320 is maintained, which helps to reduce the temperature; the second case is that the secondary air flow enters the inside of the mounting box 320 and directly blows on the control board 310 arranged in the mounting box 320. In the present embodiment and the following embodiment two, embodiment three, the above-mentioned first case or the second case can be included, or both the first case and the second case can be included; in the following embodiment four and embodiment five, the above-mentioned second case is included; in the following embodiment six, both the above-mentioned first case and the second case are included.

[0067] The mounting box 310 can have various forms. In one embodiment, the mounting box 310 is a one-letter type; in another embodiment, the mounting box 310 is a streamline type, which is more conducive to air flow.

[0068] In the present embodiment, at least one first air inlet passage 301 is formed between the mounting box 320 and the main body inner shell 110, and the cross-sectional area of the first air inlet passage 301 in the direction perpendicular to the first direction a is smaller than the cross-sectional area of the secondary fluid passage 101 in the direction perpendicular to the first direction a. Such arrangement makes the air accelerated after passing through the narrow first air inlet passage 301 under the action of the Laval effect, and quickly enters the secondary fluid passage 101, thereby not only increasing the flow speed of the air in the secondary fluid passage 101, so that the air flow from the secondary fluid passage 101 assists to speed up the evaporation speed of the water in the hair, but more importantly, the air flow around the mounting box 320 can be improved, thereby better achieving efficient heat dissipation of the control member 300.

[0069] In order to install the control member 300, the main body inner shell 110 comprises a first columnar section 111, a conical section 112 and a second columnar section 113 connected with each other, and the inner diameter of the second columnar section 113 is larger than that of the first columnar section 111, and the mounting box 320 is arranged in the second columnar section 113.

[0070] In one specific embodiment, the installation box 320 comprises a box body 321 and a cover plate 322, the cover plate 322 is arranged at the opening of the box body 321, and the control board 310 is arranged in the box cavity formed by the box body 321 and the cover plate 322.

[0071] Optionally, the box body 321 comprises a receiving portion 3211 for receiving the control board 310 and a spoiler portion 3212 protruding outward from the receiving portion 3211, and the air flow passing through the spoiler portion 3212 becomes a spiral air flow. Specifically, the box body 321 comprises a bottom plate and an annular side wall plate protruding upward along the circumference of the bottom plate, part of the structure of the annular side wall plate protrudes outward and forms the spoiler portion 3212, and the bottom plate and the part of the annular side wall plate that does not protrude outward form the receiving portion 3211. Optionally, the bottom plate is a circular plate.

[0072] Further optionally, a plurality of spoiler portions 3212 are arranged at intervals in the circumference of the box body 321, and the plurality of spoiler portions 3212 can improve the air disturbance effect. In one specific embodiment, the spoiler portion 3212 is a spoiler rib extending in the first direction a.

[0073] Further optionally, the spoiler portion 3212 is provided with a wire passing structure 3213, which can be a wire passing groove or a wire passing hole.

[0074] In order to stably fix the installation box 320, the second cylindrical section 113 of the main body inner shell 110 is provided with a plug-in slot 114, and the spoiler rib is inserted into the plug-in slot 114. The number of plug-in slots 114 is set according to the number of spoiler ribs, and can be one or more. In one specific embodiment, as shown in Figure 2 , the spoiler rib is provided with three, and correspondingly, the plug-in slot 114 is also provided with three.

[0075] Continuing to refer to Figure 1 , Figure 2 and Figure 4 , in this embodiment, the size of the cover plate 322 is greater than the size of the receiving portion 3211, and the cover plate 322 abuts against the inner wall surface of the main body inner shell 110, and the cover plate 322 is provided with an air hole 3221 penetrating in the first direction a, which at least partially avoids the spoiler portion 3212. Such arrangement makes the cover plate 322 can be used as a structure for plugging the port of the annular cavity 102, and also makes the cover plate 322 can be used as the rear end plate of the entire hair dryer main body 100, thereby playing a protective and aesthetic role, and the arrangement of the air hole 3221 makes the first air inlet channel 301 communicate with the space outside the hair dryer main body 100, and the air can smoothly enter the first air inlet channel 301 after passing through the air hole 3221.

[0076] Optionally, the vent hole 3221 is at least one of an arc-shaped hole, a circular hole, and an oval hole. The arc-shaped hole is a hole extending along an arc. Of course, the vent hole 3221 can be provided in other shapes according to requirements in addition to the arc-shaped hole, the circular hole, and the oval hole.

[0077] Optionally, a plurality of vent holes 3221 are provided, and the plurality of vent holes 3221 are arranged in a circular shape. In a specific embodiment, as shown in Figure 4 , the vent holes 3221 are provided in three, and each of the vent holes 3221 is an arc-shaped hole. The three vent holes 3221 are arranged in a circular shape.

[0078] It should be noted that in the present embodiment, the control board 310 can be a centralized or distributed controller. For example, the controller can be a single microcontroller or a plurality of microcontrollers distributedly arranged. The microcontroller can run a control program to control the heating element 200 and the motor 500 to respectively realize their functions.

[0079] Embodiment Two:

[0080] As shown in Figure 5 , the present embodiment provides a hair dryer. The hair dryer provided in the present embodiment is basically the same as the hair dryer provided in Embodiment One, and the difference mainly lies in that the specific position of the control member 300 in the secondary fluid passage 101 and the specific structure of the control member 300 are different.

[0081] In the present embodiment, the control member 300 is located at the middle position of the secondary fluid passage 101.

[0082] In the present embodiment, the cover plate 322 is arranged on the accommodating portion 3211, and the cover plate 322 is arranged spaced apart from the inner wall surface of the main body inner shell 110. Such an arrangement makes it unnecessary to provide the vent hole 3221 on the cover plate 322 as shown in Embodiment One, and the communication between the first air inlet passage 301 and the space outside the hair dryer main body 100 is achieved, so that air can flow along the side wall surface of the cover plate 322 to smoothly enter the first air inlet passage 301. Optionally, the size and shape of the cover plate 322 are the same as those of the bottom plate of the box body 321.

[0083] Embodiment Three:

[0084] As shown in Figure 6 , the present embodiment provides a hair dryer. The hair dryer provided in the present embodiment is basically the same as the hair dryer provided in Embodiment Two, and the difference mainly lies in that the specific position of the control member 300 in the secondary fluid passage 101 is different.

[0085] In the present embodiment, the control member 300 is located at the fluid outlet of the secondary fluid passage 101.

[0086] Embodiment Four:

[0087] As Figures 7 to 9 shown, the present embodiment provides a blowing device, the blowing device provided by the present embodiment is mainly different from the blowing devices provided by the first embodiment to the third embodiment in that, in the present embodiment, the control member 300 is not arranged in the secondary fluid passage 101, but is arranged outside the secondary fluid passage 101, and the control member 300 is located at the air inlet end of the blowing main body 100 in the first direction a.

[0088] Of course, in addition to this main difference, compared with the above three embodiments, the structure of the control panel 310 and the mounting box 320 in the present embodiment is also different. In the present embodiment, the mounting box 320 is a ring-shaped cylindrical structure in communication with the secondary fluid passage 101, and the control panel 310 is a ring-shaped structure arranged in the mounting box 320.

[0089] Continuing to refer to Figures 7 to 9 , the mounting box 320 includes a ring-shaped inner wall plate 3201, a ring-shaped outer wall plate 3202, and a ring-shaped outer end plate 3203, the ring-shaped inner wall plate 3201 and the ring-shaped outer wall plate 3202 are sleeved inside and outside, the ring-shaped outer end plate 3203 is connected between the ring-shaped inner wall plate 3201 and the ring-shaped outer wall plate 3202, and the control panel 310 is in the ring-shaped cavity formed by the ring-shaped inner wall plate 3201, the ring-shaped outer wall plate 3202, and the ring-shaped outer end plate 3203.

[0090] Alternatively, the mounting box 320 can also include a ring-shaped bottom plate, which is connected between the ring-shaped inner wall plate 3201 and the ring-shaped outer wall plate 3202 and is arranged opposite to the ring-shaped outer end plate 3203, and is used to connect the blowing main body 100 and block one end of the ring-shaped cavity 102; of course, a ring-shaped end plate can also be arranged between the main body inner shell 110 and the main body outer shell 120, which is used to close the ring-shaped cavity 102 and realize the connection with the mounting box 320.

[0091] In order to form a heat dissipation flow channel passing through the cavity in the mounting box 320, in some embodiments, a first air hole 3204 is provided through the ring-shaped inner wall plate 3201, a second air hole 3205 is provided through the ring-shaped outer wall plate 3202, and the second air hole 3205, the cavity of the mounting box 320, and the first air hole 3204 are sequentially communicated and form a second air inlet passage 302 in communication with the secondary fluid passage 101. Such arrangement makes the heat dissipation airflow flowing through the second air inlet passage 302 directly contact the control panel 310, thereby improving the heat dissipation effect and efficiency of the control panel 310.

[0092] In some parallel embodiments, the first air hole 3204 is provided through the annular inner wall plate 3201, the third air hole 3206 is provided through the annular outer end plate 3203, and the third air hole 3206, the cavity of the mounting box 320, and the first air hole 3204 are sequentially communicated to form the third air inlet channel 303 which is communicated with the secondary fluid channel 101. In this way, the heat dissipation airflow flowing through the third air inlet channel 303 directly contacts the control panel 310, thereby improving the heat dissipation effect and efficiency of the control panel 310.

[0093] In some other parallel embodiments, the first air hole 3204 is provided through the annular inner wall plate 3201, the second air hole 3205 is provided through the annular outer wall plate 3202, and the third air hole 3206 is provided through the annular outer end plate 3203. In this way, the second air inlet channel 302 and the third air inlet channel 303 are formed at the same time, thereby further improving the heat dissipation effect and efficiency.

[0094] Embodiment Five:

[0095] As shown in Figures 10 to 12 , the present embodiment provides a hair dryer, which is mainly different from the hair dryer provided in Embodiment Four in that the structure of the hair dryer main body 100 is different, and the structure of the mounting box 320 is also different.

[0096] In the present embodiment, the extension length of the main body inner shell 110 in the first direction a is less than the extension length of the main body outer shell 120 in the first direction a, and the mounting box 320 is arranged in the main body outer shell 120 and cooperates with part of the main body outer shell 120 to form an annular cylindrical structure. In this case, the annular outer end plate 3203 of the mounting box 320 is arranged in abutment with the main body outer shell 120.

[0097] Specifically, continuing to refer to Figure 12 , the mounting box 320 includes the annular inner wall plate 3201 and the annular outer end plate 3203, the part of the main body outer shell 120 protruding from the main body inner shell 110 in the first direction a assumes the role of the annular outer wall plate 3202 in Embodiment Four, and the annular outer end plate 3203 is connected between the annular inner wall plate 3201 and the main body outer shell 120.

[0098] In the present embodiment, the first air hole 3204 is provided through the annular inner wall plate 3201, the third air hole 3206 is provided through the annular outer end plate 3203, and the third air hole 3206, the cavity of the mounting box 320, and the first air hole 3204 are sequentially communicated to form the third air inlet channel 303 which is communicated with the secondary fluid channel 101. In this way, the heat dissipation airflow flowing through the third air inlet channel 303 directly contacts the control panel 310, thereby improving the heat dissipation effect and efficiency of the control panel 310.

[0099] Of course, a second air vent 3205 can also be provided on the part of the main body shell 120 that protrudes from the main body inner shell 110 in the first direction a to form a second air intake channel 302.

[0100] Alternatively, the extension length of the inner shell 110 in the first direction a can be greater than the extension length of the outer shell 120 in the first direction a. The mounting box 320 is placed outside the inner shell 110 and cooperates with a portion of the inner shell 110 to form an annular cylindrical structure. The mounting box 320 includes an annular outer wall plate 3202 and an annular outer end plate 3203. The portion of the inner shell 110 protruding from the outer shell 120 in the first direction a serves the function of the annular inner wall plate 3201 in embodiment four, and the annular outer end plate 3203 connects the annular outer wall plate 3202 and the inner shell 110.

[0101] Example 6:

[0102] like Figures 13 to 16 As shown, this embodiment provides a blower device, which has a structure that is basically the same as the blower device provided in Embodiment 4. The difference is that the structure of the blower body 100 is different, the structure of the mounting box 320 is different, and the assembly method of the mounting box 320 and the blower body 100 is also different.

[0103] In this embodiment, the blower body 100 includes an inner shell 110 and an outer shell 120, and in the first direction a, the extension length of the inner shell 110 is less than the extension length of the outer shell 120. The control member 300 is placed in the portion of the outer shell 120 that extends beyond the inner shell 110 in the first direction a.

[0104] Furthermore, an annular end plate 150 is provided between the inner shell 110 and the outer shell 120 to enclose annular cavity 102, and the mounting box 320 is inserted into the annular end plate 150. The mounting box 320 also includes an annular bottom plate 3207 connected between the annular inner wall plate 3201 and the annular outer wall plate 3202. The annular inner wall plate 3201, the annular outer wall plate 3202 and the annular bottom plate 3207 form a box body 321, and the annular outer end plate 3203 forms a cover plate 322. The annular outer end plate 3203 is detachably placed at the annular opening of the box body 321. A plug-in post 3208 is protruding on the annular bottom plate 3207, and a plug-in hole 151 is provided on the annular end plate 150. The plug-in post 3208 is inserted into the plug-in hole 151. Of course, the positions of the insertion hole 151 and the insertion post 3208 can also be interchanged, that is, the insertion hole 151 is protruding on the annular base plate 3207, and the insertion post 3208 is provided on the annular end plate 150.

[0105] In one specific embodiment, there are three insertion holes 151 and three insertion posts 3208, which are inserted and mated one-to-one.

[0106] With reference to the drawings Figure 13 As shown in the drawings, in the present embodiment, at least one fourth air inlet passage 304 is formed between the mounting box 320 and the main body shell 120, and the cross-sectional area of the fourth air inlet passage 304 in the direction perpendicular to the first direction a is smaller than that of the secondary fluid passage 101. In this way, the air is accelerated by the Laval effect after passing through the narrow fourth air inlet passage, and quickly enters the secondary fluid passage 101, so as to not only increase the flow speed of the air in the secondary fluid passage 101, so that the air flow from the secondary fluid passage 101 can assist to accelerate the evaporation speed of the water in the hair, but more importantly, the flow speed of the air around the mounting box 320 can be increased, so as to better achieve the efficient heat dissipation of the control member 300. In this case, the annular outer end plate 3203 of the mounting box 320 is arranged in a spaced manner with the inner wall surface of the main body shell 120.

[0107] It should be noted that in the present embodiment, the spoiler 3212 as shown in Embodiments 1 to 3 can also be outwardly protruded on the annular outer wall plate 3202 to form a plurality of fourth air inlet passages 304.

[0108] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A blow-off device, characterized in that The hair dryer comprises: a blowing body (100) comprising an inner casing (110) and an outer casing (120), the inner wall surface of the inner casing (110) surrounds to form a secondary fluid passage (101), the secondary fluid passage (101) penetrates the blowing body (100) along a first direction a, and an annular cavity (102) is formed between the inner casing (110) and the outer casing (120); a control member (300) comprising a control plate (310), and the airflow flowing through the secondary fluid passage (101) passes through the control member (300).

2. The blow-off device according to claim 1, characterized in that The hair dryer further comprises a heating member (200) arranged in the annular cavity (102), and the control member (300) is arranged outside the annular cavity (102).

3. The blow-off device according to claim 1, characterized in that The control member (300) is arranged in the secondary fluid passage (101).

4. The blow-off device according to claim 3, characterized in that The control member (300) is located at a secondary fluid inlet of the secondary fluid passage (101). Alternatively, the control member (300) is located at a middle position of the secondary fluid passage (101).

5. The hair drying device of claim 3, wherein The control member (300) further comprises a mounting box (320), the control plate (310) is arranged in the mounting box (320), and at least one first air inlet passage (301) is formed between the mounting box (320) and the inner casing (110), the cross-sectional area of the first air inlet passage (301) in a direction perpendicular to the first direction a is smaller than the cross-sectional area of the secondary fluid passage (101) in a direction perpendicular to the first direction a.

6. The hair drying device of claim 3, wherein The control member (300) further comprises a mounting box (320), the control plate (310) is arranged in the mounting box (320), and the mounting box (320) is arranged in a perforated structure, so that the airflow flowing through the secondary fluid passage (101) enters the inside of the mounting box (320) and passes through the control plate (310).

7. The hair drying device of claim 5, wherein The mounting box (320) comprises a box body (321), the box body (321) comprises a containing portion (3211) and a turbulence portion (3212) protruding outside the containing portion (3211), the containing portion (3211) is used for containing the control plate (310), and the airflow flowing through the turbulence portion (3212) becomes a spiral airflow.

8. The blow-off device according to claim 7, characterized in that The mounting box (320) further comprises a cover plate (322), the cover plate (322) is arranged on the opening of the box body (321); The cover plate (322) is arranged on the containing portion (3211), and the cover plate (322) is arranged in a spaced manner with the inner wall surface of the inner casing (110); Alternatively, the cover plate (322) abuts against the inner wall surface of the inner casing (110), and an air hole (3221) is arranged on the cover plate (322) in the first direction a, the air hole (3221) at least partially avoids the turbulence portion (3212).

9. The hair drying device of claim 8, wherein The air hole (3221) is at least one of an arc-shaped hole, a circular hole, and an elliptical hole, and the arc-shaped hole is arranged along an arc line; And / or, the vent holes (3221) are arranged in a circular manner.

10. The hair drying device of claim 7, wherein The box body (321) is provided with a plurality of turbulence portions (3212) arranged at intervals in the circumferential direction. And / or, the turbulence portion (3212) is provided with a wire passing structure (3213).

11. The hair drying device of claim 1, wherein The control member (300) is arranged at the air inlet end of the air blowing main body (100) in the first direction a, and a secondary fluid inlet of the secondary fluid channel (101) is formed at the air inlet end.

12. The hair drying device of claim 11, wherein The control member (300) further comprises a mounting box (320); The mounting box (320) is an annular cylindrical structure in communication with the secondary fluid channel (101), and the control board (310) is arranged in the mounting box (320); Alternatively, the extension length of the main body inner shell (110) in the first direction a is less than the extension length of the main body outer shell (120) in the first direction a, the mounting box (320) is arranged in the main body outer shell (120), and an annular cylindrical structure is formed in cooperation with part of the main body outer shell (120); Alternatively, the extension length of the main body inner shell (110) in the first direction a is greater than the extension length of the main body outer shell (120) in the first direction a, and the mounting box (320) is arranged outside the main body inner shell (110) and cooperates with part of the main body inner shell (110) to form an annular cylindrical structure.

13. The hair drying device of claim 12, wherein, The mounting box (320) comprises an annular inner wall plate (3201) and at least one of an annular outer wall plate (3202) and an annular outer end plate (3203), the annular inner wall plate (3201) and the annular outer wall plate (3202) are sleeved inside and outside, the annular outer end plate (3203) is connected between the annular inner wall plate (3201) and the annular outer wall plate (3202), and a first air hole (3204) is arranged through the annular inner wall plate (3201); The annular outer wall plate (3202) is provided with a second air hole (3205) arranged therethrough, the second air hole (3205), the cavity of the mounting box (320) and the first air hole (3204) are sequentially communicated and form a second air inlet channel (302) in communication with the secondary fluid channel (101); And / or, the annular outer end plate (3203) is provided with a third air hole (3206) arranged therethrough, the third air hole (3206), the cavity of the mounting box (320) and the first air hole (3204) are sequentially communicated and form a third air inlet channel (303) in communication with the secondary fluid channel (101).

14. The hair drying device of claim 11, wherein, The control member (300) comprises a mounting box (320), and the control board (310) is arranged in the mounting box (320); The main body inner shell (110) has an extension length in the first direction a smaller than that of the main body outer shell (120), the mounting box (320) is arranged in the portion of the main body outer shell (120) protruding from the main body inner shell (110), and at least one fourth air inlet channel (304) is formed between the mounting box (320) and the main body outer shell (120), the fourth air inlet channel (304) having a cross-sectional area perpendicular to the first direction a smaller than that of the secondary fluid channel (101).

15. The hair drying device of claim 14, wherein, The mounting box (320) comprises an annular inner wall plate (3201), an annular outer wall plate (3202) and an annular outer end plate (3203), the annular inner wall plate (3201) and the annular outer wall plate (3202) are sleeved inside and outside each other, and the annular outer end plate (3203) is connected between the annular inner wall plate (3201) and the annular outer wall plate (3202); the annular inner wall plate (3201) is provided with a first air hole (3204) penetrating therethrough; The annular outer wall plate (3202) is provided with a second air hole (3205) penetrating therethrough, the second air hole (3205), the cavity of the mounting box (320) and the first air hole (3204) are sequentially communicated and form a second air inlet channel (302) communicated with the secondary fluid channel (101); And / or, the annular outer end plate (3203) is provided with a third air hole (3206) penetrating therethrough, the third air hole (3206), the cavity of the mounting box (320) and the first air hole (3204) are sequentially communicated and form a third air inlet channel (303) communicated with the secondary fluid channel (101).

16. The hair drying device of claim 2, wherein The hair dryer further comprises a handle (400), and a main fluid channel is formed in the hair dryer, the main fluid channel comprising the annular cavity (102) and a handle flow channel (401) in the handle (400), the handle flow channel (401) being communicated with the annular cavity (102); The annular cavity (102) is provided with a flow guide structure (130), and the flow guide structure (130) is used for guiding the main airflow entering the annular cavity (102) from the handle flow channel (401) to the heating element (200).

Images