Bladeless fan

Abstract

The utility model discloses a bladeless fan which comprises an annular piece, a handle, a mounting frame and a fan assembly, the annular piece is provided with a hollow structure, and one end of the annular piece is provided with an air outlet communicated with the hollow structure; the top end of the handle is connected with the annular piece, and the lower portion of the handle is provided with an air cavity and an air inlet communicated with the air cavity. The mounting frame is arranged in the handle and comprises an air duct, the bottom end of the air duct is communicated with the air cavity, and the top end of the air duct is communicated with the hollow structure; the fan assembly comprises an inner barrel body, a motor, fan blades and a silicon rubber sleeve, the motor is installed on the inner barrel body, the fan blades are located in the inner barrel body and connected with an output shaft of the motor, and the silicon rubber sleeve is arranged outside the inner barrel body in a sleeving mode; the fan assembly is installed in the air duct, and the bottom end of the air duct is higher than the bottom end of the air duct. The bladeless fan is low in working noise and compact in structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field, especially no blade fan. BACKGROUND

[0002] Handheld no blade fan can produce natural and continuous cool breeze, has no exposed blade, and the appearance is streamlined and cool, and is popular with consumers as soon as it is marketed.

[0003] The existing handheld no blade fan generally has the problem of large noise. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem to provide a low noise no blade fan.

[0005] In order to solve the above technical problem, the utility model adopts the technical scheme of no blade fan, including:

[0006] Annular piece, the annular piece has a hollow structure, one end of the annular piece is provided with an air outlet communicating with the hollow structure;

[0007] Handle, the top end of the handle is connected with the annular piece, and the lower part of the handle is provided with a wind cavity and an air inlet communicating with the wind cavity;

[0008] Mounting frame, the mounting frame is arranged in the handle, and the mounting frame includes a wind drum, the bottom end of the wind drum is communicated with the wind cavity, and the top end of the wind drum is communicated with the hollow structure;

[0009] Fan assembly, the fan assembly includes an inner cylinder, a motor, a fan blade and a silica gel sleeve, the motor is installed on the inner cylinder, the fan blade is located in the inner cylinder and is connected with the output shaft of the motor, and the silica gel sleeve is sleeved on the outside of the inner cylinder;The fan assembly is installed in the wind drum, and the bottom end of the wind drum is higher than the bottom end of the wind drum.

[0010] In an embodiment, the lower part of the inner wall of the wind drum is provided with a limiting structure, the top end of the limiting structure abuts against the fan assembly, and the top end of the limiting structure is higher than the bottom end of the wind drum.

[0011] In an embodiment, the bottom end of the silica gel sleeve has an inwardly extending lower ring portion, the top end of the lower ring portion contacts the bottom end of the inner cylinder, and the bottom end of the lower ring portion contacts the top end of the limiting structure.

[0012] In an embodiment, the handle includes a main body and an air inlet net, one side of the main body is provided with a window communicating with the wind cavity, the air inlet net is installed at the window, and the air inlet net and the bottom end of the main body are respectively provided with the air inlet.

[0013] In an embodiment, the main body comprises a connected cylindrical body and a bottom cover, the bottom cover is provided with the air inlet, the cylindrical body is provided with a limiting sliding block, the mounting frame is provided with a limiting sliding groove matched with the limiting sliding block, the upper portion of the air duct is provided with a first buckle, the main body is provided with a second buckle matched with the first buckle, and the bottom cover connects the bottom end of the mounting frame.

[0014] In an embodiment, the lower portion of the mounting frame is provided with a first fixing table, the cylindrical body has a second fixing table, and the first fixing table and the second fixing table are connected through fastening screws.

[0015] In an embodiment, a main control board electrically connected with the motor is further included, and an outer wall of the air duct is provided with a mounting structure for mounting the main control board.

[0016] In an embodiment, a battery electrically connected with the main control board is further included, the battery is arranged in the handle and below the main control board, and the mounting frame is provided with an avoiding groove for avoiding the battery.

[0017] In an embodiment, a wind duct part is further included, the wind duct part and the motor are arranged above the inner cylindrical body, the motor is located in the wind duct part, the wind duct part is in the form of a sleeve ring, a bottom end of the wind duct part is communicated with the inner cylindrical body, a top end of the wind duct part is protruded relative to a top end of the air duct and communicated with the hollow structure, an upper portion of the wind duct part is provided with a ventilation opening, the handle has an air flow channel, the air flow channel is located outside the air duct, the main control board is located in the air flow channel, and the ventilation opening and the wind cavity are respectively communicated with the air flow channel.

[0018] In an embodiment, a top end of the silica gel sleeve has an upward extending upper ring part, a top end of the upper ring part contacts a bottom end of the wind duct part, and a bottom end of the upper ring part contacts a top end of the inner cylindrical body.

[0019] The no-leaf fan has the advantages that the silica gel sleeve is arranged outside the inner cylindrical body, vibration transmitted from the motor to the handle is reduced, a certain mute effect is achieved, the bottom end of the fan assembly is arranged to be higher than the bottom end of the air duct, an air inlet channel with a smaller cross-sectional area than the wind cavity is formed below the fan assembly, and the noise of the no-leaf fan during operation is further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in these drawings without creative labor.

[0021] Figure 1 It is a sectional view of the bladeless fan of the embodiment one of the present application.

[0022] Figure 2 It is Figure 1 It is an enlarged view of A in the figure.

[0023] Figure 3 It is an exploded view of the bladeless fan of the embodiment one of the present application.

[0024] Figure 4 It is a structural schematic view of the mounting frame in the bladeless fan of the embodiment one of the present application.

[0025] Explanation of reference numerals:

[0026] 1, annular part; 11, air outlet;

[0027] 2, handle; 21, air cavity; 22, air inlet; 23, main body; 231, cylindrical body; 232, bottom cover; 24, air inlet net; 25, air flow channel;

[0028] 3, mounting frame; 31, air duct; 311, limiting structure; 32, limiting sliding groove; 33, first buckle; 34, first fixing table; 35, mounting structure; 36, avoiding groove;

[0029] 4, fan assembly; 41, inner cylinder; 42, motor; 43, fan blade; 44, silica gel sleeve; 441, lower ring part; 442, upper ring part;

[0030] 5, main control board;

[0031] 6, battery;

[0032] 7, air duct part; 71, ventilation opening. DETAILED DESCRIPTION

[0033] The purposes, functional features and advantages of the present application will be further illustrated in combination with embodiments and with reference to the drawings.

[0034] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0035] It should be noted that if the embodiments of the present application involve directional indications such as up, down, left, right, front, back, etc., the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture such as shown in the drawings, and if the specific posture changes, the directional indications will also change accordingly.

[0036] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features.

[0037] In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel schemes, and "and / or" is taken as an example, including the scheme, or the scheme, or the scheme that satisfies both. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skill in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection required by the present application.

[0038] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0039] Embodiment one

[0040] Please refer to Figures 1 to 4The utility model discloses an embodiment one for: bladeless fan, including annular piece 1, handle 2, installation frame 3 and fan assembly 4, the annular piece 1 has hollow structure, the hollow structure whole presents annular, the annular piece 1 one end is equipped with the air outlet 11 of intercommunication hollow structure, the top of handle 2 is connected annular piece 1, the lower part of handle 2 is equipped with wind cavity 21 and the air inlet 22 of intercommunication wind cavity 21, and external air enters wind cavity 21 through air inlet 22, installation frame 3 is located in handle 2, installation frame 3 includes wind cylinder 31, the bottom of wind cylinder 31 is interconnected wind cavity 21, the lower part of the internal space of wind cylinder 31 is smaller than the cross section area of wind cavity 21, and the top of wind cylinder 31 is interconnected hollow structure, fan assembly 4 includes inner cylinder 41, motor 42, fan blade 43 and silica gel cover 44, and motor 42 is installed on inner cylinder 41, and fan blade 43 is located in inner cylinder 41 and is connected with the output shaft of motor 42, and silica gel cover 44 is sleeved on the outside of inner cylinder 41, fan assembly 4 is installed in wind cylinder 31, and the outer wall surface of silica gel cover 44 contacts the inner wall surface of wind cylinder 31, to improve the shaking phenomenon of inner cylinder 41 in wind cylinder 31, and the bottom of wind cylinder 31 is higher than the bottom of wind cylinder 31.

[0041] In one or more embodiments, the distance between the bottom of the fan assembly 4 and the bottom of the wind cylinder 31 is 1 / 5-2 / 3 of the height of the wind cylinder 31. When the fan blade 43 is located below the motor 42, the distance between the bottom of the fan blade 43 and the bottom of the wind cylinder 31 is 1 / 5-2 / 3 of the height of the wind cylinder 31.

[0042] The lower part of the inner wall of the wind cylinder 31 is provided with a limiting structure 311, the top end of the limiting structure 311 abuts against the fan assembly 4, the top end of the limiting structure 311 is higher than the bottom of the wind cylinder 31, and the limiting structure 311 is used for limiting the position of the fan assembly 4 in the wind cylinder 31, which is beneficial to guarantee the consistency of bladeless fan production. Specifically, the top end of the limiting structure 311 abuts against the bottom of the inner cylinder 41. In this embodiment, the limiting structure 311 is a rib provided on the inner wall of the wind cylinder 31.

[0043] To further improve the noise of the bladeless fan, the bottom of the silica gel cover 44 has an inwardly extending lower ring portion 441, the top end of the lower ring portion 441 contacts the bottom of the inner cylinder 41, and the bottom of the lower ring portion 441 contacts the top end of the limiting structure 311, i.e., the inner cylinder 41 indirectly abuts against the limiting structure 311.

[0044] The handle 2 comprises a main body 23 and an air inlet net 24, one side of the main body 23 is provided with a window communicating with the air cavity 21, and the air inlet net 24 is installed at the window, and the air inlet net 24 and the bottom end of the main body 23 are respectively provided with the air inlet 22.

[0045] In the embodiment, the main body 23 comprises a connected cylindrical body 231 and a bottom cover 232, the bottom cover 232 is provided with the air inlet 22, the cylindrical body 231 is provided with a limiting sliding block, the mounting frame 3 is provided with a limiting sliding groove 32 matched with the limiting sliding block, the upper part of the air duct 31 is provided with a first buckle 33, the main body 23 is provided with a second buckle matched with the first buckle 33, and the bottom cover 232 is connected to the bottom end of the mounting frame 3. When the mounting frame 3 is assembled into the main body 23, the mounting frame 3 is first slid from the bottom of the cylindrical body 231, so that the limiting sliding block is matched with the limiting sliding groove 32, until the first buckle 33 is matched with the second buckle, the top of the mounting frame 3 is clamped with the cylindrical body 231, and then the bottom cover 232 is installed at the bottom of the cylindrical body 231, and in some embodiments, the bottom cover 232 abuts against the bottom of the mounting frame 3, so that the mounting frame 3 is fixed in the main body 23. Optionally, the second buckle is a clamping groove.

[0046] In order to further improve the structural stability of the bladeless fan, the lower part of the mounting frame 3 is provided with a first fixing table 34, the cylindrical body 231 has a second fixing table, and the first fixing table 34 and the second fixing table are connected through a fastening screw.

[0047] The bladeless fan further comprises a main control board 5 electrically connected with the motor 42, and the outer wall of the air duct 31 is provided with a mounting structure 35 for mounting the main control board 5. The main control board 5 is provided with an operation key for controlling the motor 42, and the main body 23 has a key sleeve corresponding to the operation key. In the embodiment, the mounting structure 35 is a mounting column.

[0048] The bladeless fan further comprises a battery 6 electrically connected with the main control board 5, the battery 6 is arranged in the handle 2 and below the main control board 5, and the mounting frame 3 is provided with an avoiding groove 36 for avoiding the battery 6. The avoiding groove 36 can make the internal structure of the handle 2 more compact, and is beneficial to reducing the size of the handle 2 for user holding.

[0049] The bladeless fan further comprises a wind duct 7, the wind duct 7 and the motor 42 are arranged above the inner cylinder 41 respectively, the motor 42 is located in the wind duct 7, the wind duct 7 is in the form of a ring, the bottom end of the wind duct 7 is communicated with the inner cylinder 41, the top end of the wind duct 7 is protruded relative to the top end of the wind cylinder 31 and communicated with the hollow structure, the upper part of the wind duct 7 is provided with a vent 71, the handle 2 is provided with an air flow channel 25, the air flow channel 25 is located outside the wind cylinder 31, the main control board 5 and the battery 6 are located in the air flow channel 25, the vent 71 and the wind cavity 21 are communicated with the air flow channel 25 respectively, when the fan assembly 4 works, the air in the air flow channel 25 is flowing, so that the heat generated by the battery 6 and the main control board 5 can be taken away, which is beneficial to the long-time stable work of the bladeless fan.

[0050] In order to improve the noise of the bladeless fan to a greater extent, the top end of the silica gel sleeve 44 is provided with an upper ring part 442 extending towards the inside, the top end of the upper ring part 442 is in contact with the bottom end of the wind duct 7, and the bottom end of the upper ring part 442 is in contact with the top end of the inner cylinder 41.

[0051] The above is only an optional embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made according to the utility model specification and the drawings, or direct / indirect application in other related technical fields under the invention concept of the utility model is included in the patent protection range of the utility model.

Claims

1. A bladeless fan characterized by: The utility model provides a kind of air supply device, including Ring, the ring has hollow structure, one end of the ring is equipped with air outlet communicating the hollow structure; Handle, the top end of the handle is connected the ring, the lower part of the handle is equipped with air cavity and air inlet communicating the air cavity; Mounting frame, the mounting frame is equipped in the handle, the mounting frame includes air cylinder, the bottom end of the air cylinder is communicated with the air cavity, the top end of the air cylinder is communicated with the hollow structure; Fan assembly, the fan assembly includes inner cylinder, motor, fan blade and silica gel cover, the motor is installed on the inner cylinder, the fan blade is located in the inner cylinder and is connected with the output shaft of the motor, the silica gel cover is sleeved on the outside of the inner cylinder;The fan assembly is installed in the air cylinder, and the bottom end of the air cylinder is higher than the bottom end of the air cylinder.

2. The bladeless fan of claim 1, wherein: The lower part of the inner wall of the air cylinder is equipped with limiting structure, the top end of the limiting structure is in contact with the fan assembly, and the top end of the limiting structure is higher than the bottom end of the air cylinder.

3. The bladeless fan of claim 2, wherein: The bottom end of the silica gel cover has inwardly extending lower ring part, the top end of the lower ring part is in contact with the bottom end of the inner cylinder, and the bottom end of the lower ring part is in contact with the top end of the limiting structure.

4. The bladeless fan of claim 1, wherein: The handle includes main body and air inlet net, one side of the main body is equipped with window communicating the air cavity, the air inlet net is installed at the window, and the bottom end of the air inlet net and the main body is respectively equipped with the air inlet.

5. The bladeless fan of claim 4, wherein: The main body includes connected cylindrical body and bottom cover, the bottom cover is equipped with the air inlet, the cylindrical body is equipped with limiting sliding block, the mounting frame is equipped with limiting sliding groove matched with the limiting sliding block, the upper part of the air cylinder is equipped with first buckle, the main body is equipped with second buckle matched with the first buckle, and the bottom cover connects the bottom end of the mounting frame.

6. The bladeless fan of claim 5, wherein: The lower part of the mounting frame is equipped with first fixed table, the cylindrical body has second fixed table, and the first fixed table and the second fixed table are connected by fastening screw.

7. The bladeless fan of claim 1, wherein: Further including main control board electrically connected with the motor, the outer wall of the air cylinder is equipped with mounting structure, and the mounting structure is used to install the main control board.

8. The bladeless fan of claim 7, wherein: Further including battery electrically connected with the main control board, the battery is arranged in the handle and below the main control board, and the mounting frame is equipped with avoiding slot for avoiding the battery.

9. The bladeless fan of claim 7, wherein: Further including air duct, the air duct and the motor are respectively arranged above the inner cylinder, the motor is located in the air duct, the air duct is in the form of sleeve ring, the bottom end of the air duct is communicated with the inner cylinder, the top end of the air duct is protruded relative to the top end of the air cylinder and communicated with the hollow structure, and the upper part of the air duct is equipped with air vent;The handle has air flow channel, the air flow channel is located outside the air cylinder, the main control board is in the air flow channel, and the air vent and the air cavity are respectively communicated with the air flow channel.

10. The bladeless fan of claim 9, wherein: The top end of the silica gel cover has inwardly extending upper ring part, the top end of the upper ring part is in contact with the bottom end of the air duct, and the bottom end of the upper ring part is in contact with the top end of the inner cylinder.

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