TWM513937U - Fan structure and its net protection - Google Patents

Description

Fan structure and its protection net

The present invention relates to a fan structure and a net thereof, and particularly to an innovative structural type with good flow conductivity, small wind cut and low noise.

According to the fact that Taiwan is located in the subtropical zone and has an island-type climate, it is humid and humid during the summer. In addition, due to the global greenhouse effect caused by industrial over-exploitation, the average temperature is slowly rising year by year. Therefore, during the summer heat, most people in order to eliminate the heat and reduce the feeling of discomfort caused by the hot sweat, usually use a fan or air conditioner to produce cool air appliances, to moderately adjust Room temperature. However, although the air conditioner is cool and comfortable to use, it is high in power consumption, in order to respond to the environmental protection trend of energy saving and carbon reduction, and also to save electricity costs, when the air conditioner is turned on indoors, the temperature that is most comfortable is usually slightly Up 1 to 2 degrees, with a fan to accelerate the circulation of indoor air, improve the cooling efficiency of the air conditioner.

The existing fan structure mainly includes a motor which combines the front and rear mesh covers, the fan blades and the driving fan blades to generate an air flow, and the front and rear mesh covers are respectively combined with each other, and then the rotating fan blades are disposed inside, that is, It can avoid falling foreign objects, or the danger of children's fingers touching the blades of high-speed rotation. Before the conventional fan structure, the mesh cover usually has an outer ring frame and a middle ring frame, and the outer ring frame and the middle ring width are connected by a series of radially arranged linear mesh strips, in order to prevent the aforementioned fingers from accidentally touching the rotating fan blades, Two adjacent two straight mesh strips whose maximum width is closest to the outer ring frame shall not be less than the width of one finger. However, this kind of conventional structural type has found that the following problems still exist in the actual use experience: in general, when the blade is running, the most important air outlet area is the outer side of the shaft to the center of the blade. At the position, however, the maximum width between the linear strips radiated from the net cover before use is limited by the width of one finger width, and the denser the center is, even if they are arranged side by side, thus blocking the fan ring. The outflow of airflow affects the efficiency of the wind, and the airflow that is blocked by the linear mesh strips that are arranged in a densely packed central part tends to generate a large noise due to the phenomenon of wind cut.

Furthermore, the motor of the conventional fan structure mounted on the rear grille usually extends rearward from the center of the rear grille, so that the center of gravity of the entire fan will move backwards, which not only lengthens the depth of the entire fan structure, but also improves the depth of the entire fan structure. In addition to the cost of packaging and transportation, the center of gravity of the rearward movement and the heavy vertical line of the supporting structure will generate a large horizontal distance, so that it is more likely to sway during operation.

Therefore, in view of the problems existing in the above-mentioned conventional structure, how to develop a fan innovation structure that is more ideal and practical, is expected by users, and is also related to the industry's efforts to develop breakthrough goals and directions.

In view of this, the creator has been engaged in the manufacturing development and design experience of related products for many years. After the detailed design and careful evaluation of the above objectives, the creator will have a practical and practical creation.

The main purpose of this creation is to provide a fan structure, and the technical problem to be solved is to make an innovative breakthrough in how to develop a new fan structure type with a more practical and practical diversion function.

The technical feature of the present invention is mainly that the fan structure comprises: a protective net comprising: a hoop; a net cover installed before the front edge of the hoop, the front net cover comprising a metal strip bent and formed a first outer ring frame, the first outer ring frame is internally fixed with a plurality of first support ribs, and the plurality of first support ribs are arranged concentrically equidistantly with a ring having a gradually increasing diameter; The net cover is disposed after the trailing edge of the hoop, and the rear net cover comprises a second outer ring frame formed by bending a metal strip, wherein the first outer ring frame and the second outer ring frame are structural structures corresponding to each other. And respectively positioned on the leading edge and the trailing edge of the hoop, the second outer ring frame is inwardly radiated and fixed with a plurality of second supporting ribs, and the free ends of the second supporting ribs are fastened with a ring body; a support structure mounted on the rear net cover; a motor mounted to the ring body from the rear to the front, the motor extends forward into the rear net cover; a fan blade mounted on the front end of the motor, when the motor drives the fan When the leaf rotates, it can continue to produce an outgoing flow that flows forward.

With this innovative and unique design, this creation can be compared with the prior art, and the radial second supporting ribs provided on the rear grille can be used to make the airflow generated by the rotating fan blades behind the rear grille. After entering the rear net cover; and after the fan blade continues to compress, the series of loops arranged concentrically on the front grille are used to minimize the wind resistance of the forward flow to the outlet airflow, thereby improving the flow guiding effect of the fan. And reduce the practical progress of the noise generated by the wind cut and the better industrial economy (utilization) benefits.

Please refer to Figures 1, 2, 3, and 4 for a preferred embodiment of the present fan structure. However, these embodiments are for illustrative purposes only and are not limited by this structure. The fan structure includes a protection net 10, a motor 20 mounted from the rear to the rear of the protection net 10, a blade 30 mounted on the motor 20, and located in the protection net 10, and a fan A support structure 40 mounted on the net 10 . The support structure 40 may be a one-piece molded structure in which the metal pipe body as shown in FIG. 1 is bent; or a vertical structure having a height adjustment function as shown in FIG.

The net 10 includes a hoop 11; a net cover 12 disposed before the leading edge of the hoop 11 and a net cover 13 disposed after the trailing edge of the hoop 11. The front mesh cover 12 includes a first outer ring frame 121 that is bent and formed by a metal strip. The first outer ring frame 121 is inwardly radiated and fixed with a plurality of first support ribs 122, and the plurality of first support ribs 122 The upper system is arranged concentrically equidistantly with a ring 123 having a gradually increasing diameter. The rear net cover 13 includes a second outer ring frame 131 that is bent and formed by a metal strip. The first outer ring frame 121 and the second outer ring frame 131 are structurally corresponding to each other, and are respectively positioned on the ring. The second outer ring frame 131 is inwardly radiated and fixed with a plurality of second supporting ribs 132. The free ends of the second supporting ribs 132 are fastened with a ring body 133. The motor 20 is mounted on the ring body 133 from the rear to the front and extends forward into the rear grille 13.

Please refer to FIG. 2, FIG. 3 and FIG. 4, which is a first embodiment of the authoring hoop 11. The hoop 11 includes a C-shaped structure in this embodiment, and the The two ends of the C-shaped structure are respectively tightly formed by the screw-locking structure 111 to form an annular structure; and when the front grille 12 and the rear grille 13 are installed by the hoop 11 of the embodiment, the The hoop 11 is fastened to cover the outer edges of the first outer ring frame 121 and the second outer ring frame 131 that abut each other.

Referring to Figures 6, 7, and 8, the figure is shown as a second embodiment of the creation hoop 11A. The hoop 11A is a complete annular structure in the present embodiment and has a In the depth, by avoiding the surrounding airflow generated by the periphery of the rotating blade 30, the surrounding airflow is radiated and scattered, and the airflow is integrated with the airflow to improve the guiding effect of the fan structure; the front grille 12 and the rear grille 13 are installed. The front edge and the rear edge of the hoop 11A are respectively provided with a plurality of hooks 112 inwardly, so as to be respectively hooked on the first outer ring frame 121 and the second outer ring frame 131.

Efficacy Description: The “fan structure” disclosed in this creation mainly uses the innovative unique structure and technical features of the hoop, the front net cover and the rear net cover included in the net to make this creation contrast with the prior art. In the conventional structure, the radiant second supporting ribs provided on the rear net cover can be used to make the rear air net cover axially enter the rear net cover due to the airflow generated by the rotating fan blades; After the leaves continue to be compressed, the series of loops arranged concentrically on the front grille are used to minimize the wind resistance of the forward flow to the exhaust airflow, thereby improving the airflow of the fan and reducing the noise generated by the wind cut. Practical and progressive.

The disclosures of the above embodiments are used to specifically explain the present creation, and although the descriptions are made through specific terms, the scope of patents of the novel creation cannot be limited thereby; those skilled in the art can understand the spirit of the creation. Changes and modifications are made to the equivalent purpose, and such changes and modifications are to be included in the scope defined by the scope of the patent application as described later.

10‧‧‧ Protective net 11, 11A‧‧‧ hoop 111‧‧‧ screw-locking structure 112‧‧‧ hooks 12‧‧‧ front net cover 121‧‧‧ first outer ring frame 122‧‧‧ first support Ribs 123‧‧‧ Rings 13‧‧‧ Rear net cover 131‧‧‧Second outer ring frame 132‧‧‧Second supporting ribs 133‧‧‧Act. 20‧‧ ‧ Motor 30‧‧ ‧ Fan blade 40, 40A‧‧‧Support structure

Fig. 1 is a perspective view of the first embodiment of the present creation. Fig. 2 is an exploded perspective view showing the first embodiment of the present creation. Figure 3 is a partial cross-sectional view of the first embodiment of the present hoop. Figure 4 is a partial cross-sectional view showing the first embodiment of the present creation. Figure 5 is a perspective view of the second embodiment of the present creation. Fig. 6 is a perspective exploded view of the second embodiment of the present creation. Figure 7 is a partial perspective view of the second embodiment of the present hoop. Figure 8 is a partial cross-sectional view showing a second embodiment of the present creation. Fig. 9 is a view showing the state of use of the second embodiment of the present creation support structure.

11A‧‧‧ hoop

12‧‧‧ Front net cover

13‧‧‧ rear net cover

20‧‧‧Motor

30‧‧‧ fan leaves

40‧‧‧Support structure

Claims (10)

The utility model relates to a fan structure, which mainly comprises: a protective net comprising a hoop; a net cover installed before the front edge of the hoop, the front net cover comprising a first outer ring frame formed by bending a metal strip, The first outer ring frame is inwardly radiated and fixed with a plurality of first supporting ribs, and the plurality of first supporting ribs are arranged concentrically equidistantly with a ring having a gradually increasing diameter; one is installed after the trailing edge of the hoop a net cover, the rear net cover comprises a second outer ring frame formed by bending a metal strip, wherein the first outer ring frame and the second outer ring frame are structural structures corresponding to each other, and are respectively positioned on the hoop The second outer ring frame is inwardly radiated and fixed with a plurality of second supporting ribs, the free ends of the second supporting ribs are fastened with a ring body; and the second outer ring rib is fixed to the rear net cover. a support structure; a motor mounted to the ring body from the rear to the front, the motor extending forward into the rear grille; and a fan blade mounted on the front end of the motor, which is continuously generated when the motor drives the fan blade to rotate The flow of the forward flow; by the combination of the above structures, after use The radial second supporting rib provided on the cover causes the airflow generated by the rotating blade behind the rear grille to enter the rear grille axially; and after the fan blade continues to compress, the front grille is concentric The series of loops are set to minimize the wind resistance of the forward flow to the outlet airflow, in addition to improving the flow guiding effect of the fan, and reducing the noise generated by the wind cut. The fan structure of claim 1, wherein the hoop is fastened to cover the outer edges of the first outer ring frame and the outer outer ring frame. The fan structure of claim 2, wherein the hoop comprises a C-shaped structure, and the two ends of the C-shaped structure are respectively tightly pressed by a screw-locking structure to form a ring shape. Structure. The fan structure of claim 1, wherein the hoop is a complete annular structure and has a depth to avoid the surrounding airflow generated by the periphery of the rotating fan blade radiating to the surroundings. Combine with the exhaust airflow to improve the flow guiding effect of the fan structure. The fan structure of claim 4, wherein the front edge and the rear edge of the hoop are respectively provided with a plurality of hooks inwardly for hooking the first outer ring frame and the second outer ring frame respectively. . A protective nett comprising: a hoop; a net cover installed before the front edge of the hoop, the front net cover comprising a first outer ring frame formed by bending a metal strip, the first outer ring frame being inward Radially fixed with a plurality of first supporting ribs, and the plurality of first supporting ribs are arranged concentrically equidistantly with a ring having a gradually increasing diameter; a net cover installed after the trailing edge of the hoop; the rear net cover a second outer ring frame formed by bending a metal strip, wherein the first outer ring frame and the second outer ring frame are structural structures corresponding to each other, and are respectively positioned on the front edge and the trailing edge of the hoop, the first The outer ring frame is inwardly radiated and fixed with a plurality of second supporting ribs, and the free ends of the second supporting ribs are fastened with a ring body; by the combination of the above structures, the radial shape of the rear net cover is utilized The second supporting ribs allow the rear of the rear net cover to enter the rear net cover axially due to the airflow generated by the fan blades in the fan rotation; and after the fan blades continue to be compressed, the series of rings arranged concentrically on the front mesh cover are used. , to reduce the wind resistance of the continuous flow of the forward flow to the minimum, except It improves the flow guiding effect of the fan and reduces the noise generated by the wind cutting. The net of claim 6, wherein the hoop fastening is applied to the outer outer ring frame and the outer outer ring frame. The protective net according to claim 7, wherein the hoop comprises a C-shaped structure, and the two ends of the C-shaped structure are respectively tightly pressed by a screw-locking structure to form a ring shape. Structure. The protection net according to claim 6, wherein the hoop has a depth to avoid the surrounding airflow generated by the periphery of the rotating fan to radiate and diverge around, and the airflow is collected to improve the fan structure. The guiding effect. The protective net according to claim 9 , wherein the front edge and the rear edge of the hoop are respectively provided with a plurality of hooks inwardly, so as to be respectively hooked on the first outer ring frame and the second outer ring frame .