CN212867982U - Tube type hand-held fan - Google Patents

Abstract

Translated fromChinese

本实用新型公开一种管筒式手持风扇，包括外壳体及设于外壳体内的扇叶、电机、控制电路板及电源，电机连接于扇叶并电连接于控制电路板，外壳体包括手柄及设于手柄一端的风扇体，风扇体呈筒状结构且其一端设有进风栅格盘，风扇体的另一端形成与进风栅格盘相对的出风口，进风栅格盘包括具有一定深度的阵列管孔，且进风栅格盘所在平面低于风扇体的侧壁端面，进风栅格盘与风扇体的侧壁之间还设有过渡斜面。进风栅格盘起到很好的整流作用，可避免形成扰流而产生气动噪音，过渡斜面可避免侧向高速气流通过边口而产生的噪音，从而使手持风扇具有较小的噪音；进风栅格盘还使出风聚拢，提高风速，增大送风距离，且不会卷到长发，使用更安全。

The utility model discloses a tubular hand-held fan, comprising an outer casing, a fan blade, a motor, a control circuit board and a power supply arranged in the outer casing. The motor is connected to the fan blade and is electrically connected to the control circuit board, and the outer casing comprises a handle and a control circuit board. The fan body is arranged at one end of the handle. The fan body has a cylindrical structure and is provided with an air inlet grid plate at one end. The other end of the fan body forms an air outlet opposite to the air inlet grid plate. A deep array of tube holes is provided, the plane where the air inlet grid plate is located is lower than the end face of the side wall of the fan body, and a transition slope is also arranged between the air inlet grid plate and the side wall of the fan body. The air inlet grille has a good rectification effect, which can avoid the formation of turbulence and generate aerodynamic noise, and the transition slope can avoid the noise caused by the lateral high-speed airflow passing through the edge, so that the hand-held fan has less noise; The air grid plate also gathers the air out, increases the wind speed, increases the air supply distance, and does not curl long hair, making it safer to use.

Description

Tube type hand-held fan

Technical Field

The utility model relates to the technical field of fans, especially, relate to a fan is handed to tube cylinder formula.

Background

The portable fan is small and exquisite, convenient to carry and convenient to use at a short distance, so that the portable fan is popular with more people. The conventional portable fan generally uses a motor to drive an axial flow fan blade, air flows in from the rear end of the blade and flows out from the front edge of the blade after being boosted through the blade, and the matching quality of the axial flow fan blade and air flow has important influence on the energy efficiency ratio, noise and the like of the fan.

The existing portable fan consists of a flat fully-open front and rear mesh enclosure, and utilizes side air inlet, so that the existing portable fan is easy to roll long hairs and has potential safety hazards; in addition, air is diffused in a scattering state when flowing out of the blades under the action of centrifugal force, so that the flow velocity of air flow discharged out of the blades is reduced, air is diffused, the air supply distance is short, the air flow cannot carry out convective heat transfer aiming at a small area, and the energy efficiency ratio of the electric fan is reduced; moreover, the fan head part of the existing portable fan is large in size, inconvenient to package and carry and single in function.

Therefore, there is a need for a tube-type handheld fan with long air blowing distance, low noise, multiple functions, portability and safety in use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pipe cylinder type hand-held fan that air supply distance is far away, the noise is little, the function is various and portable, safe in utilization.

In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a hand-held fan of tube cylinder formula, includes the shell body and locates flabellum, motor, control circuit board and power in the shell body, the motor connect in the flabellum, just the motor the power electricity respectively connect in control circuit board, wherein, the shell body includes the handle and locates the fan body of handle one end, the fan body is tubular structure and its one end is equipped with air inlet grid dish, the other end of the fan body form with the air outlet that air inlet grid dish is relative, air inlet grid dish is including the array tube hole that has the certain degree of depth, just air inlet grid dish place plane is less than the lateral wall terminal surface of the fan body, air inlet grid dish with still be equipped with transition inclined plane between the lateral wall of the fan body.

Preferably, the air inlet grid disc is of a honeycomb structure.

Preferably, the included angle between the transition inclined plane and the plane of the air inlet grid disc is between 15 degrees and 75 degrees, so that the noise generated when lateral high-speed air flow passes through the edge opening is avoided.

Preferably, an inner cylinder is arranged in the fan body, the inner cylinder and the inner wall of the fan body are concentrically arranged, an air outlet channel is formed between the inner cylinder and the inner wall of the fan body, the fan blade is arranged at one end of the inner cylinder and is opposite to the air inlet grid disc, and the motor is contained in the inner cylinder and protrudes out of the inner cylinder to be connected with the fan blade.

Preferably, the tube-type handheld fan further comprises a plurality of stationary blades arranged between the inner tube and the inner wall of the fan body, and each stationary blade is of an arc-shaped structure.

Preferably, the fan blade includes a plurality of blades arranged at intervals, each of the blades is of an arc-shaped structure, and a bending direction of the blade is opposite to a bending direction of the stationary blade.

Preferably, the fan blade further comprises a hub, each blade is arranged on the hub at intervals, one end of the hub, which is close to the air inlet grid disc, is of a curved surface structure, and one end of the hub, which is close to the inner cylinder, is provided with a plurality of conical surfaces at intervals.

Preferably, one end of the hub, which is close to the air inlet grid disc, is a spherical surface, and the conical surface is correspondingly arranged below the blades.

Preferably, the tube type handheld fan further comprises a fragrance body and a make-up mirror, and the fragrance body and the make-up mirror are sequentially mounted on the inner tube.

Preferably, the outer shell further comprises a rear cover connected to the inner barrel, and the fragrance body and the beauty mirror are sequentially mounted on the rear cover.

Compared with the prior art, because the utility model discloses a tube-type handheld fan, its fan body is the tubular structure and its one end is equipped with the air inlet grid dish, this air inlet grid dish is including the array tube hole that has certain degree of depth, therefore the air inlet grid dish plays fine rectification effect, thereby avoid forming the vortex and produce the aerodynamic noise, and the plane that the air inlet grid dish is located is less than the lateral wall terminal surface of fan body, still be equipped with the transition inclined plane between the lateral wall of air inlet grid dish and fan body, thereby avoid the noise that the high-speed air current of side direction produced through the rim mouth, make the tube-type handheld fan of this application have less noise; in addition, the fan body in the cylindrical structure enters air through the air inlet grid disc at one end of the fan body, namely side air inlet is not needed, compared with the existing side air inlet mode, on one hand, air outlet is gathered, the air speed is improved, and therefore the air supply distance is increased, on the other hand, the tubular handheld fan cannot be rolled to long hair, and the use is safer; moreover, the fan body has smaller volume, is convenient to package and carry and is more convenient to use.

Drawings

Fig. 1 is a schematic structural view of a tube-type handheld fan according to the present invention.

Fig. 2 is a schematic view of the structure of fig. 1 from another angle.

Fig. 3 is a side view of fig. 1.

Fig. 4 is a cross-sectional view of fig. 1.

Fig. 5 is an enlarged schematic view of a portion a in fig. 4.

Fig. 6 is an exploded view of fig. 1.

Fig. 7 is a schematic view of the structure of fig. 6 from another angle.

FIG. 8 is an enlarged view of the fan blade shown in FIG. 6.

FIG. 9 is an enlarged view of the fan blade of FIG. 7.

Fig. 10 is a schematic view of the outer housing of fig. 6 at another angle.

Fig. 11 is a schematic view of the structure of fig. 10 from another angle.

Fig. 12 is a schematic structural view of the upper case of fig. 10.

Fig. 13 is a structural schematic view of the lower housing of fig. 10 at another angle.

Detailed Description

Embodiments of the present invention will now be described with reference to the drawings, wherein like element numerals represent like elements throughout.

First, as shown in fig. 1-6, the utility model provides a tube-typehandheld fan 1, includingshell body 10 and locateflabellum 20 in theshell body 10,motor 30,control circuit board 40 andpower 50, the electricity is connected withoperating button 41 on thecontrol circuit board 40, thisoperating button 41 protrusion is inshell body 10,motor 30,power 50 are connected incontrol circuit board 40 respectively,motor 30 still connects inflabellum 20 simultaneously, whenoperating button 41 was operated,control circuit board 40 was according to operatingsignal control motor 30 according to themode drive flabellum 20 rotation of user's selection. Thepower source 50 is a rechargeable battery, but not limited thereto, and other power sources may be used to supply power to themotor 30 and thecontrol circuit board 40.

Referring to fig. 1 to 5, in the present invention, theouter casing 10 includes afan body 11 and ahandle 12, and thefan body 11 is disposed at one end of thehandle 12. Thefan body 11 is of a cylindrical structure, an airinlet grid disc 111 is arranged at one end of thefan body 11, anair outlet 112 is formed at the other end of thefan body 11, and theair outlet 112 is arranged opposite to the airinlet grid disc 111; in addition, the plane of the airinlet grid disc 111 is lower than the end surface of the side wall of thefan body 11, a transitioninclined plane 113 is arranged between the airinlet grid disc 111 and the side wall of thefan body 11, and the airinlet grid disc 111 is provided witharray tube holes 1111 with a certain depth. Thefan blade 20 and themotor 30 are both arranged in thefan body 11, and thefan blade 20 is opposite to the airinlet grid disc 111; thepower source 50 and thecontrol circuit board 40 are accommodated in thehandle 12, and theoperation button 41 protrudes from thehandle 12 and is located at one side of theair outlet 112. After a user holds thehandle 12 and operates theoperation button 41, thecontrol circuit board 40 controls themotor 30 to operate according to a mode selected by the user, themotor 30 drives thefan blades 20 to rotate, so that high-speed airflow enters thefan body 11 through thetube holes 1111 on the airinlet grid disc 111, passes through an annular surface formed by the diameter direction of thefan blades 20, and finally flows out through theair outlet 112.

Referring to fig. 1, 4-5 and 12, in the present invention, the airinlet grid plate 111 is preferably a honeycomb structure, and a plurality ofpipe holes 1111 with a certain depth are formed thereon, i.e. the airinlet grid plate 111 has a certain thickness, as shown in fig. 4-5, the honeycomb structure airinlet grid plate 111 has a good rectifying function for the air flow, thereby preventing the formation of turbulent flow and generating aerodynamic noise. In addition, the included angle a between the transitioninclined surface 113 and the plane of the airinlet grid disc 111 is preferably between 15 degrees and 75 degrees (see fig. 5), so that the noise generated by the lateral high-speed air flow passing through the edge opening can be avoided. Of course, the inclination angle of thetransition slope 113 is not limited in the present embodiment.

Referring to fig. 4-7, aninner cylinder 13 is further disposed in thefan body 11, theinner cylinder 13 is disposed at an end close to theair outlet 112 and has a bottom wall, theinner cylinder 13 and the inner wall of thefan body 11 are concentrically disposed, an air outlet channel is formed between theinner cylinder 13 and the inner wall of thefan body 11, the inner wall of theinner cylinder 13 is provided with a plurality ofpositioning ribs 131, themotor 30 is accommodated in theinner cylinder 13 and positioned by thepositioning ribs 131, an output shaft of themotor 30 protrudes out of the bottom wall of theinner cylinder 13, thefan blades 20 are mounted on the bottom wall of theinner cylinder 13 and connected to the output shaft of themotor 30, and thefan blades 20 are opposite to the.

More specifically, a plurality ofstationary blades 14 are further arranged between theinner cylinder 13 and the inner wall of thefan body 11, eachstationary blade 14 is of an arc-shaped structure, and theinner cylinder 13, the inner wall of thefan body 11 and thestationary blades 14 are matched to form a guiding and drainage structure, so that outlet air is gathered, the air speed is increased, the air supply distance is further, and peripheral air flow can be driven to flow together.

Referring now to fig. 4-9,blade 20 includes ahub 21 and a plurality ofblades 22 spaced apart fromhub 21, eachblade 22 having an arcuate configuration. More specifically, the two ends of thehub 21 respectively form anair inlet end 211 and anair outlet end 212, eachblade 22 is connected to theair outlet end 212 at intervals, theair inlet end 211 is preferably a curved surface structure, theair outlet end 212 is provided with a plurality oftapered surfaces 213 at intervals, and thetapered surfaces 213 are correspondingly disposed below theblades 22, as shown in fig. 8-9. After the mounting, thehub 21 is mounted on the bottom wall of theinner cylinder 13 and connected to themotor 30, theair inlet end 211 of thehub 21 faces the airinlet grid disc 111, and the end of eachblade 22 is spaced from the inner wall of thefan body 11 to form an annular surface for the airflow to pass through, as shown in fig. 4, and the bending direction of theblade 22 is opposite to that of the stationary blade 2214. Theair inlet end 211 of thehub 21 is of a curved surface structure, which is beneficial to pressurization, so that the air speed is improved, the air supply distance is longer, and the arrangement of theconical surface 213 is convenient for mold opening treatment during the molding of thefan blade 20; the cooperation of theblades 22 and thestationary blades 14 gathers the outlet air, further increases the wind speed, and further increases the air supply distance.

More preferably, the air inletend 211 of thehub 21 in the present invention is a spherical surface, but not limited thereto.

Referring to fig. 1-4 and 6-7, in the present invention, thefan body 11 and thehandle 12 of theouter casing 10 are formed by engaging anupper casing 10a and alower casing 10 b. More specifically, theupper casing 10a and thelower casing 10b are substantially symmetrical in structure, wherein theupper casing 10a includes afirst cylinder 11a and afirst handle 12a, thefirst cylinder 11a is disposed at one end of thefirst handle 12a, the airinlet grid disc 111 is disposed on thefirst cylinder 11a, and the airinlet grid disc 111, thefirst cylinder 11a and thefirst handle 12a are preferably integrally formed, but not limited thereto, and may be separately formed and then fixed as a whole. Correspondingly, thelower case 10b includes asecond cylinder 11b corresponding to thefirst cylinder 11a and asecond handle 12b corresponding to thefirst handle 12a, anair outlet 112 is formed at an end opening of thesecond cylinder 11b, theinner cylinder 13 and thestationary blade 14 are both provided in thesecond cylinder 11b, and theinner cylinder 13 and thestationary blade 14, thesecond cylinder 11b, and thesecond handle 12b are preferably integrally formed, but not limited thereto, and may be integrally formed after being separately formed.

Referring to fig. 10-11, a snap and a snap hole are provided between theupper housing 10a and thelower housing 10 b. In an embodiment, a plurality offirst clamping grooves 13a are concavely formed in an inner wall of theupper casing 10a, afirst clamping block 14a is disposed in eachfirst clamping groove 13a, aclamping piece 13b corresponding to thefirst clamping groove 13a is disposed at an edge of a side wall of thelower casing 10b, afirst clamping hole 14b is formed in theclamping piece 13b, when theupper casing 10a and thelower casing 10b are connected in a matching manner, theclamping piece 13b is inserted into thefirst clamping groove 13a of theupper casing 10a, and thefirst clamping block 14a is clamped in thefirst clamping hole 14b, so that theupper casing 10a and thelower casing 10b are conveniently assembled.

With continued reference to fig. 10-13, theouter housing 10 further includes amiddle housing 15 and arear cover 16, themiddle housing 15 being connected to the end of thehandle 12, and therear cover 16 being connected to theinner barrel 13. Specifically, the end of theupper casing 10a is further protruded with a first protrudingrib 15a, the first protrudingrib 15a is provided with afirst locking protrusion 16a, the end of thelower casing 10b is protruded with a second protrudingrib 15b corresponding to the first protrudingrib 15a, and the second protrudingrib 15b is provided with asecond locking protrusion 16 b. After theupper shell 10a and thelower shell 10b are correspondingly clamped, the first protrudingrib 15a and the second protrudingrib 15b are enclosed into a circular ring shape, and thefirst clamping protrusion 16a and thesecond clamping protrusion 16b protrude along the radial direction of the circular ring structure. Correspondingly, the inner wall of themiddle shell 15 is provided with aclamping gap 151, when in connection, themiddle shell 15 is clamped outside thefirst convex rib 15a and thesecond convex rib 15b, and thefirst clamping protrusion 16a and thesecond clamping protrusion 16b are clamped in theclamping gap 151 to realize connection, and the structure also has the characteristic of convenient assembly.

Furthermore, the inner wall of themiddle housing 15 is further provided with apositioning protrusion 152, the first protrudingrib 15a or/and the second protrudingrib 15b is provided with a positioning notch corresponding to thepositioning protrusion 152, in a specific embodiment, the second protrudingrib 15b is provided with apositioning notch 17b (see fig. 11), and after themiddle housing 15 is installed, thepositioning protrusion 152 is engaged with thepositioning notch 17b, so as to prevent themiddle housing 15 from rotating.

As shown in fig. 10 to 11, afirst flange 161 corresponding to the inner diameter of theinner cylinder 13 is protruded from the inner surface of therear cover 16, a secondengaging hole 162 is opened on thefirst flange 161, and correspondingly, a second engaging block 133 is protruded from the inner wall of theinner cylinder 13, and when therear cover 16 is installed, thefirst flange 161 is inserted into theinner cylinder 13 and the secondengaging hole 162 is engaged with the secondengaging block 132. A second flange 163 (see fig. 11) is further provided on the outer surface of therear cover 16 to attach the cosmetic mirror 60 (described later in detail).

Combine fig. 1-7 once more shown, the utility model discloses a fan is handed tocartridge formula 1 still includescosmetic mirror 60 and sends outfragrant body 70,cosmetic mirror 60 is installed in the lateral surface ofback lid 16, specifically be the joint in thesecond flange 163 ofback lid 16, send outfragrant body 70 and install betweenback lid 16 andcosmetic mirror 60, in this fan is handed tocartridge formula 1 use, the air-out can be taken out the fragrant smell of sending outfragrant body 70, can directly usecosmetic mirror 60 simultaneously,cosmetic mirror 60 and send outfragrant body 70's setting, make the function offan 1 is handed to cartridge formula more various, improve user's use experience.

In summary, because the tube-type handheld fan 1 of the present invention has the fan body 11 of the tube-type handheld fan 1 in a tube-shaped structure and the air inlet grid disc 111 is disposed at one end of the fan body, and the air inlet grid disc 111 includes the array tube holes 1111 having a certain depth, the air inlet grid disc 111 has a good rectifying function, so as to avoid forming turbulent flow and generating pneumatic noise, and the plane where the air inlet grid disc 111 is located is lower than the end surface of the side wall of the fan body 11, and the transition inclined plane 113 is further disposed between the air inlet grid disc 111 and the side wall of the fan body 11, so as to avoid the noise generated by the lateral high-speed airflow passing through the edge, so that the tube-type handheld fan 1 of the present invention has less noise; in addition, the fan body 11 in the cylindrical structure enters air through the air inlet grid disc 111 at one end of the fan body, namely side air inlet is not needed, compared with the existing side air inlet mode, on one hand, air outlet is gathered, the air speed is improved, and the air supply distance is increased, on the other hand, the tubular handheld fan 1 of the application can not be rolled to long hair, and is safer to use; moreover, the fan body 11 has a small volume, is convenient to package and carry, and is more convenient to use.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.

Claims (10)

Translated fromChinese

1.一种管筒式手持风扇，包括外壳体及设于所述外壳体内的扇叶、电机、控制电路板及电源，所述电机连接于所述扇叶，且所述电机、所述电源分别电连接于所述控制电路板，其特征在于：1. A tube type hand-held fan, comprising an outer casing and a fan blade, a motor, a control circuit board and a power supply arranged in the outer casing, the motor is connected to the fan blade, and the motor, the power supply They are respectively electrically connected to the control circuit board, and are characterized in that:所述外壳体包括手柄及设于所述手柄一端的风扇体，所述风扇体呈筒状结构且其一端设有进风栅格盘，所述风扇体的另一端形成与所述进风栅格盘相对的出风口，所述进风栅格盘包括具有一定深度的阵列管孔，且所述进风栅格盘所在平面低于所述风扇体的侧壁端面，所述进风栅格盘与所述风扇体的侧壁之间还设有过渡斜面。The outer casing includes a handle and a fan body arranged at one end of the handle. The fan body has a cylindrical structure and one end of the fan body is provided with an air inlet grid plate, and the other end of the fan body is formed with the air inlet grid. The air outlet opposite to the grid plate, the air inlet grid plate includes an array of pipe holes with a certain depth, and the plane where the air inlet grid plate is located is lower than the end face of the side wall of the fan body, and the air inlet grid plate is located. A transition slope is also provided between the disc and the side wall of the fan body.2.如权利要求1所述的管筒式手持风扇，其特征在于：所述进风栅格盘呈蜂窝结构。2 . The tubular hand-held fan according to claim 1 , wherein the air inlet grid plate has a honeycomb structure. 3 .3.如权利要求1所述的管筒式手持风扇，其特征在于：所述过渡斜面与所述进风栅格盘所在平面之间的夹角介于15°～75°度之间。3 . The tubular hand-held fan according to claim 1 , wherein the angle between the transition slope and the plane where the air inlet grid plate is located is between 15° and 75°. 4 .4.如权利要求1所述的管筒式手持风扇，其特征在于：所述风扇体内设有内筒，所述内筒与所述风扇体的内壁同心设置且两者之间形成出风通道，所述扇叶安装于所述内筒的一端并正对所述进风栅格盘，所述电机容置于所述内筒内并凸伸出所述内筒而连接所述扇叶。4 . The tubular hand-held fan of claim 1 , wherein the fan body is provided with an inner cylinder, the inner cylinder and the inner wall of the fan body are concentrically arranged and an air outlet channel is formed between the two. 5 . The fan blade is installed at one end of the inner cylinder and faces the air inlet grid plate, and the motor is accommodated in the inner cylinder and protrudes out of the inner cylinder to connect with the fan blade.5.如权利要求4所述的管筒式手持风扇，其特征在于：还包括设于所述内筒与所述风扇体的内壁之间的多个静叶片，各所述静叶片均呈弧形结构。5 . The tubular hand-held fan according to claim 4 , further comprising a plurality of stationary blades arranged between the inner cylinder and the inner wall of the fan body, and each of the stationary blades is arc-shaped. 6 . shape structure.6.如权利要求5所述的管筒式手持风扇，其特征在于：所述扇叶包括相间隔设置的多个叶片，各所述叶片均呈弧形结构，且所述叶片的弯曲方向与所述静叶片的弯曲方向相反。6 . The tubular hand-held fan according to claim 5 , wherein the fan blade comprises a plurality of blades arranged at intervals, and each of the blades has an arc-shaped structure, and the bending direction of the blade is the same as the bending direction of the blade. 7 . The bending directions of the stationary vanes are opposite.7.如权利要求6所述的管筒式手持风扇，其特征在于：所述扇叶还包括轮毂，各所述叶片间隔地设于所述轮毂上，所述轮毂的临近所述进风栅格盘的一端呈曲面结构，所述轮毂的临近所述内筒的一端间隔地设有多个锥形面。7 . The tubular hand-held fan according to claim 6 , wherein the fan blade further comprises a hub, each of the blades is arranged on the hub at intervals, and the hub is adjacent to the air inlet grille. 8 . One end of the grid plate has a curved surface structure, and one end of the hub adjacent to the inner cylinder is provided with a plurality of conical surfaces at intervals.8.如权利要求7所述的管筒式手持风扇，其特征在于：所述轮毂的临近所述进风栅格盘的一端为球形面，所述锥形面对应设于所述叶片的下方。8 . The tubular hand-held fan according to claim 7 , wherein one end of the hub adjacent to the air inlet grid plate is a spherical surface, and the conical surface corresponds to the surface of the blade. 9 . below.9.如权利要求4所述的管筒式手持风扇，其特征在于：还包括发香体及美妆镜，所述发香体、所述美妆镜依次安装于所述内筒。9 . The tubular hand-held fan according to claim 4 , further comprising a fragrance body and a cosmetic mirror, wherein the fragrance body and the cosmetic mirror are sequentially installed in the inner tube. 10 .10.如权利要求9所述的管筒式手持风扇，其特征在于：所述外壳体还包括连接于所述内筒的后盖，所述发香体、所述美妆镜依次安装于所述后盖。10 . The tubular hand-held fan according to claim 9 , wherein the outer casing further comprises a back cover connected to the inner cylinder, and the fragrance body and the cosmetic mirror are sequentially installed on the outer casing. 11 . the back cover.

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