Bladeless fan structure capable of discharging air through slots

Abstract

According to the technical scheme, the bladeless fan structure is characterized in that the bladeless fan structure comprises an upper shell and a lower shell, an installation piece is fixedly connected between the upper shell and the lower shell, a motor with a motor shaft extending upwards is fixedly installed in the installation piece, an air inlet is formed in the top end of the upper shell, and an air outlet is formed in the top end of the lower shell. An impeller is arranged in the upper shell and located on a motor shaft of the motor and corresponds to the air inlet, an air guide bottom cover is arranged at the bottom end of the lower shell, a plurality of seam air outlets are formed in the edge of the air guide bottom cover, and the air guide bottom cover is a hemispherical face which is sunken upwards and used for guiding air. According to the bladeless fan structure, the problems that an existing bladeless fan structure is small in internal wind pressure, weak in wind power and short in lift can be solved, and the bladeless fan structure can replace a ceiling fan structure to be arranged on a ceiling.

Description

[Technical field]

[0001] The utility model relates to the technical field of bladeless fans, in particular to a bladeless fan structure with slit air outlet. [Background technology]

[0002] The existing bladeless fan structure is usually assembled from a fan base and an external air duct component. The internal gap of the air duct is large and the air outlet is not set reasonably, resulting in a small internal wind pressure and weak wind force of the bladeless fan, which affects the blowing head and is only suitable for placement close to the human body. However, the existing demand often requires the fan structure to be set on the ceiling, and often requires a ceiling fan structure. However, the ceiling fan structure is too large, which affects the aesthetics of the interior decoration. In addition, compared with the bladeless fan structure, the ceiling fan structure is difficult to install and noisy, and the user experience is poor.

[0003] In order to solve the defects of the existing bladeless fan structure and enable the bladeless fan structure to replace the ceiling fan structure and be arranged on the ceiling, the utility model provides a bladeless fan structure with slit air outlet. [Utility Model Content]

[0004] In order to solve the problems of low internal wind pressure, weak wind force and short lift of the existing bladeless fan structure, the utility model provides a bladeless fan structure with slit air outlet.

[0005] In order to solve the above problems, the utility model provides the following technical solutions:

[0006] A bladeless fan structure with slit air outlet, characterized in that: it includes an upper shell and a lower shell, a mounting member is fixedly connected between the upper shell and the lower shell, a motor with the motor shaft extending upward is fixedly installed in the mounting member, an air inlet is provided at the top of the upper shell, an impeller is provided in the upper shell and on the motor shaft of the motor corresponding to the air inlet, an air guide bottom cover is provided at the bottom end of the lower shell, a plurality of slit air outlets are provided at the edge of the air guide bottom cover, and the air guide bottom cover is a hemispherical surface that is concave upward for guiding air.

[0007] The bladeless fan structure with slit air outlet as described above is characterized in that: a circle of air guide grilles corresponding to the air outlet position of the impeller is provided on the mounting member, a plurality of buckles are provided on the inner walls of the bottom end of the upper shell and the top end of the lower shell, and corresponding slots for snapping into the buckles are provided at the edges of the mounting member, and the upper shell and the lower shell are respectively buckled at the upper and lower ends of the edge of the mounting member.

[0008] The bladeless fan structure with slit air outlet as described above is characterized in that: an air guide cover is fixedly installed in the lower shell and below the mounting member, a wire arrangement groove for arranging wires is provided on one side of the bottom surface of the mounting member, and a wire pressing plate for sealing the wire arrangement groove is correspondingly provided on the upper edge of the air guide cover.

[0009] The bladeless fan structure with slit air outlet as described above is characterized in that: the impeller includes a conical bottom shell, a plurality of inclined blades are provided on the conical bottom shell, a wind collecting cover is provided outside the blades, and the inner wall of the wind collecting cover is tightly fitted with the outer edge of the blade.

[0010] The bladeless fan structure with slit air outlet as described above is characterized in that: the blades are streamlined surfaces as a whole and the inclination angle of the blades relative to the outer surface of the conical bottom shell gradually increases from top to bottom, and the spacing between the blades gradually widens from top to bottom.

[0011] The bladeless fan structure with slit air outlet as described above is characterized in that a plurality of saw teeth are provided on one end of the blade close to the air inlet.

[0012] The bladeless fan structure with slit air outlet as described above is characterized in that a positioning column for connecting the motor and driving the impeller to rotate synchronously is provided at the inner center of the conical bottom shell, and a socket for plugging the motor shaft is provided at the center of the positioning column.

[0013] The bladeless fan structure with slit air outlet as described above is characterized in that the conical bottom shell and the blades are integrated, and the wind collecting cover and the outer edge of the blades are connected and fixed by ultrasonic welding.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. The utility model discloses a bladeless fan structure with slit air outlet, which is provided with a hemispherical air guide bottom cover and a plurality of slit air outlets. The air flow is accelerated by the centrifugal force of the impeller to flow into the shell of the bladeless fan structure, and is gathered at the slit air outlets under the guidance of the air guide bottom cover. Since the air guide bottom cover is in an inwardly concave hemispherical shape, it will not only reduce the internal gap of the bladeless fan structure, but also facilitate the convergence of air flow to enhance the internal wind pressure. Combined with the slit air outlets with smaller air outlet areas, the wind force of the bladeless fan structure will be stronger and the lift will be farther. Moreover, the hemispherical air guide bottom cover has a smaller wind resistance, which can reduce the collision force between the air flow and the air guide bottom cover, so that the air flow is smoothly guided to the slit air outlets to guide the wind direction and further enhance the blowing lift.

[0016] 2. The utility model has a bladeless fan structure with slit air outlet, which is provided with an air guide grille and an air guide cover. The air guide grille can guide the direction of the airflow, reduce the mutual interference between the airflows, and guide the wind downward to enhance the wind force and wind pressure at the slit air outlet. The air guide cover further reduces the internal gap of the bladeless fan structure, so that the wind pressure inside the shell is greater when the impeller speed remains unchanged, thereby further enhancing the wind force and lift of the bladeless fan structure.

[0017] 3. The utility model has a bladeless fan structure with slit air outlet, and the blades are streamlined curved surfaces as a whole, and their inclination angle gradually changes along the rotation direction of the impeller, which can guide the airflow to flow smoothly to the slit air outlet under the action of the centrifugal force of the impeller, so as to reduce the flow distance of the airflow, make the airflow converge to the slit air outlet more quickly, and then enhance the wind pressure at the slit air outlet to increase the wind force and lift; at the same time, the streamlined blades can reduce the wind resistance caused by the blades themselves, reduce the influence of the blades on the wind force, make the blown airflow stronger, and a plurality of serrations are provided on the edge of one end of the blade close to the air inlet, which can reduce the resistance of the blade cutting into the air, reduce the friction between the blade and the air when rotating at high speed, and make the blade quieter when rotating at high speed.

Brief Description of the Drawings

[0018] Figure 1 is a three-dimensional diagram of the bladeless fan structure;

[0019] Figure 2 is a top view of the bladeless fan structure;

[0020] Figure 3 yes Figure 2 Sectional view in the AA direction;

[0021] Figure 4 This is the first exploded view of the bladeless fan structure;

[0022] Figure 5 is a second exploded view of the bladeless fan structure;

[0023] Figure 6 is the third exploded view of the bladeless fan structure;

[0024] Figure 7 is the fourth exploded view of the bladeless fan structure;

[0025] Figure 8 It is a three-dimensional enlarged picture of the impeller;

[0026] Fig. 9 This is an exploded view of the impeller;

[0027] In the figure: 1 is the upper shell; 2 is the lower shell; 3 is the mounting part; 4 is the motor; 5 is the air inlet; 6 is the impeller; 7 is the air guide bottom cover; 8 is the slit air outlet; 9 is the air guide grille; 10 is the buckle; 11 is the slot; 12 is the air guide cover; 13 is the cable groove; 14 is the wire pressing plate; 15 is the conical bottom shell; 16 is the blade; 17 is the wind gathering cover; 18 is the sawtooth; 19 is the positioning column; 20 is the socket. [Specific implementation method]

[0028] The technical features of the present invention are further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can understand. The directions such as up, down, left and right described in the text are consistent with those shown in the accompanying drawings.

[0029] The present utility model only protects the mechanical structure, and the circuit structure is common knowledge.

[0030] A bladeless fan structure with slit air outlet, such as Figures 1 to 9 As shown, it comprises an upper shell 1 and a lower shell 2, a mounting member 3 is fixedly connected between the upper shell 1 and the lower shell 2, a motor 4 extending upwardly from the motor axis is fixedly mounted in the mounting member 3, an air inlet 5 is arranged at the top of the upper shell 1, an impeller 6 is arranged in the upper shell 1 and on the motor axis of the motor 4 corresponding to the air inlet 5, an air guide bottom cover 7 is arranged at the bottom end of the lower shell 2, a plurality of slit air outlets 8 are arranged at the edge of the air guide bottom cover 7, and the air guide bottom cover 7 is a hemispherical surface that is concave upward for guiding air; the air flow is accelerated by the centrifugal force of the impeller 6 to flow into the shell of the bladeless fan structure, and is gathered at the slit air outlet 8 under the guidance of the air guide bottom cover 7. Since the air guide bottom cover 7 is a hemispherical shape that is concave inwardly, it will not only reduce the internal gap of the bladeless fan structure, but also facilitate the convergence of air flow to enhance the internal wind pressure, and combined with the small air outlet area The slit air outlet 8 can make the wind force of the bladeless fan structure stronger and the lift longer. Moreover, the hemispherical shape of the wind guide bottom cover 7 has a small wind resistance, which can reduce the collision force between the airflow and the wind guide bottom cover 7, so that the airflow is smoothly guided to the slit air outlet 8 to guide the wind direction and further enhance the blowing lift, so that the bladeless fan structure can provide the user with a good blowing experience even if it is installed on the ceiling far away from the human body. Moreover, the bladeless fan structure has a simple structure and is easy to assemble. A light source such as a light board or a light strip can be arranged in the upper shell 1 or the lower shell 2. As long as the wind guide bottom cover 7 is made of a translucent material, the bladeless fan structure can be designed as a bladeless fan lamp. It can also be further combined with various external air ducts and external lighting components to form various styles of bladeless fans or fan lamp products such as ceiling-mounted, suspended ceiling, wall-mounted, and desktop types, which are flexible in application.

[0031] Specifically, a circle of air guide grilles 9 corresponding to the air outlet position of the impeller 6 is provided on the mounting member 3, and the air guide grilles 9 can guide the direction of the airflow, reduce mutual interference between the airflows, and guide the wind force downward to enhance the wind force and wind pressure at the slit air outlet 8. A plurality of buckles 10 are provided on the inner walls of the bottom end of the upper shell 1 and the top end of the lower shell 2, and a slot 11 for snapping into the buckles 10 is correspondingly provided at the edge of the mounting member 3. The upper shell 1 and the lower shell 2 are buckled at the upper and lower ends of the edge of the mounting member 3 respectively, and the upper shell 1, the lower shell 2, the mounting member 3 and the air guide bottom cover 7 are all connected and fixed by buckling, and the assembly process is convenient and quick.

[0032] In addition, an air guide cover 12 is fixedly installed in the lower shell 2 and below the mounting member 3. The air guide cover 12 further reduces the internal gap of the bladeless fan structure, so that when the speed of the impeller 6 remains unchanged, the wind pressure inside the shell is greater, thereby further enhancing the wind force and lift of the bladeless fan structure. A wire arrangement groove 13 for arranging wires is provided on one side of the bottom surface of the mounting member 3, and a wire pressing plate 14 for sealing the wire arrangement groove 13 is correspondingly provided on the upper edge of the air guide cover 12. The motor 4 is connected to an external power supply by passing wires through the wire arrangement groove 13.

[0033] Specifically, the impeller 6 includes a conical bottom shell 15, on which a plurality of obliquely arranged blades 16 are provided, and outside the blades 16 a wind collecting cover 17 is provided, and the inner wall of the wind collecting cover 17 is tightly fitted with the outer edge of the blades 16. The existing impeller structure often does not have the wind collecting cover 17, and the outer edge of the blade is prone to vibrate and make noise when rotating at high speed. However, in an embodiment of the utility model, the two sides of the blade 16 are firmly fixed by the wind collecting cover 17 and the conical bottom shell 15 respectively, which can effectively eliminate the noise generated by the vibration of the blade 18 when rotating at high speed, so that the bladeless fan structure has a good silent effect.

[0034] Specifically, the blade 16 is a streamlined curved surface as a whole, and the inclination angle of the blade 16 relative to the outer surface of the conical bottom shell 15 gradually increases from top to bottom, and the spacing between the blades 16 gradually widens from top to bottom; since the blade 16 is a streamlined curved surface as a whole, its inclination angle gradually changes along the rotation direction of the impeller 6, and can guide the airflow to flow smoothly toward the slit air outlet 8 under the action of the centrifugal force of the impeller 6, so as to reduce the flow distance of the airflow, so that the airflow converges to the slit air outlet 8 more quickly, thereby enhancing the wind pressure at the slit air outlet 8, so as to increase the wind force and lift; at the same time, the streamlined blade 16 can reduce the wind resistance caused by the blade itself, reduce the influence of the blade on the wind force, and make the blown airflow stronger.

[0035] In addition, a plurality of serrations 18 are provided at one end of the blade 16 close to the air inlet 5. The serrations 18 can reduce the resistance of the blade 16 cutting into the air and reduce the friction between the blade 16 and the air when rotating at high speed, thereby making the impeller 6 quieter when rotating at high speed.

[0036] Specifically, a positioning column 19 for connecting the motor 4 and driving the impeller 6 to rotate synchronously is provided at the inner center of the conical bottom shell 15, and a socket 20 for plugging in the motor shaft is provided at the center of the positioning column 19. The impeller 6 is tightly plugged into the motor shaft of the motor 4.

[0037] Specifically, the conical bottom shell 15 and the blades 16 are an integral piece, and the wind collecting cover 17 and the outer edges of the blades 16 are connected and fixed by ultrasonic welding, which is convenient for production.

[0038] The embodiments described in the present invention are merely descriptions of preferred implementation modes of the present invention and are not limited to the precise structures described above and shown in the accompanying drawings. Various modifications and changes may be made without departing from the scope thereof. Various modifications and improvements made to the technical solutions of the present invention by engineers and technicians in this field without departing from the design concept of the present invention shall all fall within the protection scope of the present invention.

Claims

1. A bladeless fan structure with slit air outlet, characterized in that: The invention comprises an upper shell (1) and a lower shell (2), wherein a mounting member (3) is fixedly connected between the upper shell (1) and the lower shell (2), wherein a motor (4) with the motor shaft extending upward is fixedly mounted in the mounting member (3), an air inlet (5) is provided at the top of the upper shell (1), an impeller (6) is provided in the upper shell (1) and on the motor shaft of the motor (4) corresponding to the air inlet (5), an air guide bottom cover (7) is provided at the bottom end of the lower shell (2), a plurality of slit air outlets (8) are provided on the edge of the air guide bottom cover (7), and the air guide bottom cover (7) is a hemispherical surface that is concave upwards for guiding air.

2. The bladeless fan structure with slit air outlet according to claim 1, characterized in that: A circle of air guide grilles (9) corresponding to the air outlet position of the impeller (6) is provided on the mounting member (3), a plurality of buckles (10) are provided on the inner walls of the bottom end of the upper shell (1) and the top end of the lower shell (2), and corresponding slots (11) for snapping into the buckles (10) are provided at the edge of the mounting member (3), and the upper shell (1) and the lower shell (2) are buckled at the upper and lower ends of the edge of the mounting member (3), respectively.

3. The bladeless fan structure with slit air outlet according to claim 2, characterized in that: An air guide cover (12) is fixedly installed in the lower shell (2) and below the mounting member (3); a wire arrangement groove (13) for arranging wires is provided on one side of the bottom surface of the mounting member (3); and a wire pressing plate (14) for sealing the wire arrangement groove (13) is provided at the upper edge of the air guide cover (12).

4. The bladeless fan structure with slit air outlet according to any one of claims 1 to 3, characterized in that: The impeller (6) comprises a conical bottom shell (15), on which a plurality of blades (16) arranged in an inclined manner are arranged, and outside the blades (16) there is a wind collecting cover (17), wherein the inner wall of the wind collecting cover (17) is tightly fitted with the outer edge of the blades (16).

5. The bladeless fan structure with slit air outlet according to claim 4, characterized in that: The blades (16) are streamlined curved surfaces as a whole, and the inclination angle of the blades (16) relative to the outer surface of the conical bottom shell (15) gradually increases from top to bottom, and the spacing between the blades (16) gradually increases from top to bottom.

6. The bladeless fan structure with slit air outlet according to claim 4, characterized in that: A plurality of saw teeth (18) are provided at one end of the blade (16) close to the air inlet (5).

7. The bladeless fan structure with slit air outlet according to claim 4, characterized in that: A positioning column (19) for connecting the motor (4) and driving the impeller (6) to rotate synchronously is provided at the inner center of the conical bottom shell (15), and a socket (20) for plugging in the motor shaft is provided at the center of the positioning column (19).

8. The bladeless fan structure with slit air outlet according to claim 4, characterized in that: The conical bottom shell (15) and the blades (16) are an integral piece, and the wind collecting cover (17) and the outer edges of the blades (16) are connected and fixed by ultrasonic welding.

Images