TWI542791B - Axial flow fan and casing thereof - Google Patents

Description

Axial fan and its fan frame

The present invention relates to an axial flow fan and a fan frame thereof, and more particularly to an axial flow fan having a wire exit hole and a fan frame thereof.

Referring to FIG. 1 , a conventional axial fan 9 is disclosed. The axial fan 9 includes a frame 91 , a motor 92 and a fan wheel 93 . The frame 91 includes a frame 911 and a base 912. The frame 911 is provided with an air inlet 913 and an air outlet 914 in the axial direction. The base 912 is disposed between the air inlet 913 and the air outlet 914, and the base 912 is provided with a plurality of ribs 915. The frames 911 are connected to each other. The base 912 of the fan frame 91 can be coupled to the motor 92. The motor 92 can drive the fan wheel 93 to rotate. After the airflow is introduced from the air inlet 913, the airflow is extracted from the air outlet 914. To provide heat dissipation. An embodiment similar to the conventional axial fan 9 has been disclosed in the patent case No. I413346 of the Republic of China, "Fan Housing of An Axial Fan".

An outlet port 916 is further disposed at a bottom end of the frame 911 of the fan frame 91 of the axial flow fan. The outlet port 916 extends through the outer side wall and the inner side wall of the frame 911; thereby, the outlet port 916 The power line 921 of the motor 92 can be extended to make the power line 921 electrically connected to a power supply or a controller, etc., so that the motor 92 can drive the above-mentioned fan wheel 93 to rotate.

After the power line 921 passes through the outlet port 916, the power line 921 is disposed in a direction in which the power supply or the controller is disposed. For example, such as As shown in FIG. 2, after the power cord 921 is ejected from the outlet port 916, the power cord 921 is disposed in the direction in which the air outlet 914 faces the air inlet 913. In this case, the power cord 921 can be abutted. Connected to the upper edge of the outlet 916 (refer to the drawing direction); however, as shown in FIG. 3, it is revealed that the power cord 921 is inserted through the outlet 916, and the power cord 921 is inserted into the power cord 921. The air outlet 913 is disposed in the direction of the air outlet 914. The outlet port 916 is disposed at the bottom end of the frame 911 (see the drawing direction), so that the bottom end of the frame 911 is bare and empty. The casing 911 cannot be in contact with the power cord 921, and the power cord 921 is easily detached from the outlet 916, which has a problem of poor positioning.

The invention provides an axial flow fan and a fan frame thereof, and the axial flow fan can solve the problem that the above-mentioned conventional fan frame is difficult to locate the power supply line by the fan frame.

The axial flow fan of the present invention comprises a frame, a motor and a wheel. The fan frame includes a frame body and a pedestal. The frame body is provided with an air inlet and an air outlet. The frame body is provided with an outlet hole between the air inlet and the air outlet, and the outlet hole has an inner side. a hole edge, the inner hole edge is closed, the base is connected to the frame by a plurality of connecting members; the motor comprises a shaft connector and a winding group, and the shaft connector is coupled to the base, the winding group a power cord is disposed, the power cord extends through the outlet hole; the fan wheel is provided with a rotating shaft and a permanent magnet, and the rotating shaft is rotatably coupled to the shaft connecting member, and the permanent magnet has a gas between the winding group and the winding group The first side of the frame is provided with a first fastening portion for holding the power cord, and the first fastening portion is located between the air inlet and the air outlet, and the first fastening portion is adjacent to the first fastening portion. In the air inlet, the first fastening portion includes two opposite fastening pieces, and the two fastening pieces have an opening therebetween, the opening is for forcing the power cable, and the two fastening pieces are used for holding the power cable. .

The frame body has a top end located at the air inlet and a bottom end of the air outlet, and a first minimum distance between the inner hole edge of the outlet hole and the top end, and an inner hole of the outlet hole There is a second maximum distance between the edge and the bottom end.

The pedestal has a third maximum distance between a side edge of the air inlet and a bottom end of the frame, and the second maximum distance is not greater than the third maximum distance.

The opening of the first fastening portion is aligned with the outlet hole in the axial direction.

The axial flow fan of the present invention comprises: a frame, the frame comprises a frame and a base, the frame is provided with an air inlet and an air outlet, and the frame is at the air inlet and the air outlet Between the outlet hole, the outlet hole has an inner hole edge, the inner hole edge is closed, the base is connected to the frame by a plurality of connecting members; a motor, the motor comprises a shaft connector and a winding a wire assembly, the shaft connector is coupled to the base, the wire assembly is provided with a power cable, the power cable extends through the outlet hole; and a fan wheel is provided with a rotating shaft and a permanent magnet, the rotating shaft Rotatablely coupled to the shaft member, the permanent magnet and the winding group have an air gap; wherein the outer side wall of the frame body is provided with a second fastening portion for holding the power cord. The second fastening portion is located between the air inlet and the air outlet, and the second fastening portion is adjacent to the air outlet. The second fastening portion includes two opposite fastening pieces, and the two fastening pieces have an opening therebetween. The opening is for the power cord to be forced in, and the two fastening pieces are used for holding the power cord

The frame body has a top end located at the air inlet and a bottom end of the air outlet, and a first minimum distance between the inner hole edge of the outlet hole and the top end, and an inner hole of the outlet hole There is a second maximum distance between the edge and the bottom end.

The pedestal has a third maximum distance between a side edge of the air inlet and a bottom end of the frame, and the second maximum distance is not greater than the third maximum distance.

The connecting member has a fourth maximum distance between a side edge of the air inlet and a bottom end of the frame, and the second maximum distance is not greater than the fourth maximum distance.

The opening of the second fastening portion is aligned with the outlet hole in the axial direction.

The fan frame of the axial flow fan of the present invention comprises a frame body and a base. The frame body is provided with an air inlet and an air outlet. The frame body is provided between the air inlet and the air outlet. An outlet hole having an inner hole edge, the inner hole edge being closed, the base being connected to the frame by a plurality of connecting members; wherein the outer side wall of the frame body is provided with a first fastening portion The first fastening portion is located between the air inlet and the air outlet, and the first fastening portion is adjacent to the air inlet. The first fastening portion includes two opposite fastening pieces, and the two fastening pieces are between the two fastening pieces. Has an opening.

The frame body has a top end located at the air inlet and a bottom end of the air outlet, and a first minimum distance between the inner hole edge of the outlet hole and the top end, and an inner hole of the outlet hole There is a second maximum distance between the edge and the bottom end.

The pedestal has a third maximum distance between a side edge of the air inlet and a bottom end of the frame, and the second maximum distance is not greater than the third maximum distance.

The connecting member has a fourth maximum distance between a side edge of the air inlet and a bottom end of the frame, and the second maximum distance is not greater than the fourth maximum distance.

The opening of the first fastening portion is aligned with the outlet hole in the axial direction.

The fan frame of the axial flow fan of the present invention comprises a frame body and a base. The frame body is provided with an air inlet and an air outlet. The frame body is provided between the air inlet and the air outlet. An outlet hole having an inner hole edge, the inner hole edge being closed, the base being connected to the frame by a plurality of connecting members; wherein the outer side wall of the frame body is provided with a second fastening portion The second fastening portion is located between the air inlet and the air outlet, the second fastening portion is adjacent to the air outlet, and the second fastening portion includes two opposite fastening pieces, between the two fastening pieces Has an opening.

The frame body has a top end located at the air inlet and a bottom end of the air outlet, and a first minimum distance between the inner hole edge of the outlet hole and the top end, and an inner hole of the outlet hole There is a second maximum distance between the edge and the bottom end.

The pedestal has a third maximum distance between a side edge of the air inlet and a bottom end of the frame, and the second maximum distance is not greater than the third maximum distance.

The connecting member has a fourth maximum distance between a side edge of the air inlet and a bottom end of the frame, and the second maximum distance is not greater than the fourth maximum distance.

The opening of the second fastening portion is aligned with the outlet hole in the axial direction.

The axial flow fan of the present invention has a closed inner design by the inner hole edge of the outlet hole of the fan frame, so that the inner power hole of the outlet hole can be provided by the inner hole edge of the outlet hole. The positioning effect is abutted to effectively prevent the power cord from falling off from the outlet hole, thereby improving the assembly convenience of the wire and improving the positioning effect of the wire.

〔this invention〕

1‧‧‧Fan frame

1a‧‧‧ frame

1b‧‧‧Base

11‧‧‧Air inlet

111‧‧‧Top

12‧‧‧air outlet

121‧‧‧ bottom

13‧‧‧Outlet hole

131‧‧‧Inside hole edge

14‧‧‧Connecting parts

15‧‧‧First Detention Department

151‧‧‧Buckle film

152‧‧‧ openings

16‧‧‧Second Detention Department

161‧‧‧Buckle film

162‧‧‧ openings

2‧‧‧Motor

21‧‧‧Axis connectors

22‧‧‧ Winding Group

221‧‧‧Power cord

3‧‧‧fan wheel

31‧‧‧ shaft

32‧‧‧ permanent magnet

D1‧‧‧ first direction

D2‧‧‧ second direction

H1‧‧‧first minimum distance

H2‧‧‧ second maximum distance

H3‧‧‧ third maximum distance

H4‧‧‧ fourth maximum distance

[study]

9‧‧‧Axial fan

91‧‧‧Fan frame

911‧‧‧ frame

912‧‧‧Base

913‧‧‧ inlet

914‧‧‧air outlet

915‧‧‧ Ribs

916‧‧‧ outlet

92‧‧‧Motor

921‧‧‧Power cord

93‧‧‧fan wheel

Fig. 1 is a sectional view showing a combination of a conventional axial fan.

Fig. 2 is a partial sectional view showing the arrangement of the power cord of the conventional axial fan toward the air inlet.

Fig. 3 is a partial sectional view showing the arrangement of the power supply line of the conventional axial flow fan toward the air outlet.

Fig. 4 is a perspective view showing the appearance of the axial flow fan of the present invention.

Fig. 5 is a sectional view showing the combination of the power supply line of the axial flow fan of the present invention in the direction of the air inlet.

Figure 6 is a perspective view of the fan frame of the axial flow fan of the present invention.

Figure 7 is a side cross-sectional view showing the fan frame of the axial flow fan of the present invention.

Fig. 8 is a sectional view showing the arrangement of the power supply line of the axial flow fan in the direction of the air outlet of the present invention view.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

Referring to Figures 4 and 5, the axial flow fan of the present invention comprises at least one frame 1, a motor 2 and a fan wheel 3. The fan frame 1 is for the motor 2 to be coupled, and the motor 2 is used to drive the fan wheel 3 to rotate.

The fan frame 1 includes a frame 1a and a base 1b. The frame body 1a is provided with an air inlet opening 11 and an air outlet opening 12 in the axial direction. The frame body 1a is provided with an outlet hole 13 between the air inlet 11 and the air outlet 12, and the outlet hole 13 is penetrated. The outer side wall and the inner side wall of the frame body 1a, and the outlet hole 13 has an inner hole edge 131, and the inner hole edge 131 is closed; please refer to the sixth and seventh drawings, the frame body 1a may have The "opening" of the air inlet 11 and the bottom end 121 of the air outlet 12 are defined as "closed" means that the inner edge 131 of the outlet opening 13 is not connected to the top end 111 and The bottom end 121. Moreover, the base 1b is connected to the inner side wall of the frame 1a by a plurality of connecting members 14. The connecting member 14 can be a rib or a vane, etc., and the invention is not limited thereto.

The motor 2 is provided on the base 1b of the fan frame 1. The motor 2 is a driving structure capable of providing rotational power, and can be understood by those skilled in the art, and the detailed structural composition and operation principle thereof are not described. In this embodiment, the motor 2 includes a shaft member 21 (which may include a member such as a shaft tube or a bearing), the shaft member 21 is coupled to the base 1b, and the shaft member 21 is coupled to a winding group 22, The winding group 22 can include components such as a coil, an insulating sleeve or a circuit board. The winding group 22 is provided with a power cord 221, which can be directly electrically connected to the coil, or as shown in FIG. The power cable 221 can also be electrically connected to the coil through the circuit board. The power cable 221 is not limited to the electrical connection mode of the power cable 221; wherein the power cable 221 extends through the outlet hole 13 of the fan frame 1 For electrical connection such as power supply or control The controller or the like enables the winding group 22 to drive the above-described fan wheel 3 to rotate.

The fan wheel 3 is provided with a rotating shaft 31 and a permanent magnet 32. The rotating shaft 31 is rotatably coupled to the shaft member 21 of the motor 2, and the permanent magnet 32 of the fan wheel 3 and the winding group 22 have an air gap. When the winding group 22 is energized by the power cord 221 An alternating magnetic field is generated through the air gap to drive the rotation of the fan wheel 3.

The axial flow fan of the present invention is designed such that the inner hole edge 131 of the outlet hole 13 of the fan frame 1 is closed. When the power supply line 221 is actually disposed, the power supply line 221 is disposed in any direction. The inner hole edge 131 which is closed by the outlet hole 13 can provide a good abutment positioning effect. In detail, referring to FIG. 5, it is disclosed that the power line 221 is disposed in the first direction D1 after the power line 221 is passed through the outlet hole 13, wherein the first direction D1 is defined as The air outlet 12 is directed toward the air inlet 11 . At this time, the power cord 221 can abut the upper edge of the inner aperture 131 of the outlet hole 13 (ie, the inner aperture 131 is adjacent to the air inlet 11 ) Or, as shown in FIG. 8 , after the power cord 221 is seen to pass through the outlet hole 13 , the power cord 221 is disposed in a second direction D2 , wherein the second direction D2 is The air inlet port 11 is defined as a direction toward the air outlet 12 . At this time, the power cable 221 can abut the lower edge of the inner hole edge 131 of the outlet hole 13 (ie, the inner hole edge 131 is adjacent to the outlet edge 131). The part of the tuyere 12). Therefore, the power supply line 221 can be disposed in the first direction D1 or the second direction D2, and the inner hole edge 131 of the outlet hole 13 can provide a good abutment positioning effect.

Moreover, referring to FIG. 7, the inner hole edge 131 of the outlet hole 13 of the fan frame 1 and the top end 111 have a first minimum distance H1, and the inner hole edge 131 of the outlet hole 13 is The bottom end 121 has a second maximum distance H2 therebetween. The inner edge 131 of the outlet hole 13 and the top end 111 and the bottom end 121 are not interconnected to prevent the power line 221 from being effectively prevented. The outlet hole 13 is detached.

Further, referring to FIG. 7, the pedestal 1b faces the air inlet 11 One of the side edges has a third maximum distance H3 from the bottom end 121 of the frame 1a, and the second maximum distance H2 is not greater than the third maximum distance H3. Therefore, as shown in FIGS. 5 and 8, when the power line 221 extends through the outlet hole 13, since the second maximum distance H2 is not greater than the third maximum distance H3, the above limitation can be effectively The height of the power line 221 inside the fan frame 1 is arranged to prevent the power line 221 from contacting the fan wheel 3, and the fan wheel 3 can be smoothly rotated.

Further, referring to FIG. 7, the connector 14 has a fourth maximum distance H4 between the side edge of the air inlet 11 and the bottom end 121 of the frame 1a. The second maximum distance H2 is not Greater than the fourth maximum distance H4. Therefore, as shown in FIGS. 5 and 8, when the power line 221 extends through the outlet hole 13, since the second maximum distance H2 is not greater than the fourth maximum distance H4, the above limitation can be effectively limited. The height of the power line 221 inside the fan frame 1 is arranged to prevent the power line 221 from contacting the fan wheel 3, and the fan wheel 3 can be smoothly rotated.

Further, as shown in FIGS. 5 and 6, the outer side wall of the frame 1a is preferably provided with a first latching portion 15 located between the air inlet 11 and the air outlet 12 The first latching portion 15 is adjacent to the air inlet 11; thereby, as shown in FIGS. 4 and 5, when the power cord 221 is disposed in the first direction D1, the first latching portion 15 can be used. The power cord 221 is fastened to provide a better positioning effect of the power cord 221. In this embodiment, the first fastening portion 15 includes two opposite fastening pieces 151. The two fastening pieces 151 have an opening 152 therebetween. The power cable 221 can be quickly assembled and forced into the interface 152. The inside of the two fastening pieces 151 enables the two fastening pieces 151 to securely hold the power cord 221, thereby improving assembly convenience. Furthermore, the opening 152 is preferably aligned with the outlet hole 13 in the axial direction, so that when the power cord 221 is passed through the outlet opening 13, the first direction D1 can be relatively straight. After extending axially, the inner side of the two fastening pieces 151 is forced through the opening 152.

The second side of the frame 1a is preferably provided with a second latching portion 16 between the air inlet 11 and the air outlet 12 as shown in the sixth and eighth embodiments. The first fastening portion 16 is adjacent to the air outlet 12; thus, as shown in FIG. 8, when the power cable 221 is disposed in the second direction D2, the second fastening portion 16 can also be used to buckle Holding the power cord 221, the power cord 221 is provided with a better positioning effect. In this embodiment, the second fastening portion 16 includes two opposite fastening pieces 161. The two fastening pieces 161 have an opening 162 therebetween. The power cable 221 can be quickly assembled and forced into the The inside of the two fastening pieces 161 enables the two fastening pieces 161 to securely hold the power cord 221, thereby improving assembly convenience. Furthermore, the opening 162 is preferably aligned with the outlet hole 13 in the axial direction, so that when the power cord 221 passes through the outlet hole 13 , it can be relatively straight toward the second direction D2. After the axial extension, the inner side of the two fastening pieces 161 is forced through the opening 162.

As described above, the axial flow fan of the present invention is designed such that the inner hole edge 131 of the outlet hole 13 of the fan frame 1 is closed, and the power supply line 221 can be used in any direction. The inner hole edge 131 of the wire hole 13 has a closed abutment effect to provide a good abutment positioning effect, so as to effectively prevent the power wire 221 from falling off from the outlet hole 13, thereby improving the assembly convenience of the wire 221 and lifting the wire 221 The positioning effect and many other effects.

While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.

1‧‧‧Fan frame

1a‧‧‧ frame

1b‧‧‧Base

11‧‧‧Air inlet

111‧‧‧Top

12‧‧‧air outlet

121‧‧‧ bottom

13‧‧‧Outlet hole

131‧‧‧Inside hole edge

14‧‧‧Connecting parts

15‧‧‧First Detention Department

151‧‧‧Buckle film

152‧‧‧ openings

16‧‧‧Second Detention Department

161‧‧‧Buckle film

162‧‧‧ openings

2‧‧‧Motor

221‧‧‧Power cord

3‧‧‧fan wheel

Claims (20)

An axial flow fan includes: a frame, the frame includes a frame body and a base, the frame body is provided with an air inlet and an air outlet, and the frame is disposed between the air inlet and the air outlet There is an outlet hole, the outlet hole has an inner hole edge, the inner hole edge is closed, the base is connected to the frame by a plurality of connecting members; a motor, the motor comprises a shaft connector and a winding group The shaft assembly is coupled to the base, the winding group is provided with a power line, the power line extends through the outlet hole, and a fan wheel is provided with a rotating shaft and a permanent magnet, the rotating shaft is rotatable In combination with the above-mentioned shaft member, the permanent magnet and the winding group have an air gap; wherein the outer side wall of the frame body is provided with a first fastening portion for holding the power cord, the first buckle The holding portion is located between the air inlet and the air outlet, and the first fastening portion is adjacent to the air inlet. The first fastening portion includes two opposite fastening pieces, and the two fastening pieces have an opening therebetween. The opening is for the power cord to be forced in, and the two fastening pieces are used to fasten the power cord. The axial flow fan of claim 1, wherein the frame body has a top end located at the air inlet and a bottom end of the air outlet, and an inner hole edge of the outlet hole and the top end There is a first minimum distance therebetween, and the inner hole edge of the outlet hole has a second maximum distance from the bottom end. The axial flow fan of claim 2, wherein the base has a third maximum distance between a side edge of the air inlet and a bottom end of the frame, and the second maximum distance is not Greater than the third maximum distance. The axial flow fan of claim 2, wherein the connecting member has a fourth maximum distance between a side edge of the air inlet and a bottom end of the frame, and the second maximum distance is not Greater than the fourth maximum distance. An axial flow fan as described in claim 1, 2, 3 or 4, wherein the above The opening of a latching portion is aligned with the above-mentioned outlet hole in the axial direction. An axial flow fan includes: a frame, the frame includes a frame body and a base, the frame body is provided with an air inlet and an air outlet, and the frame is disposed between the air inlet and the air outlet There is an outlet hole, the outlet hole has an inner hole edge, the inner hole edge is closed, the base is connected to the frame by a plurality of connecting members; a motor, the motor comprises a shaft connector and a winding group The shaft assembly is coupled to the base, the winding group is provided with a power line, the power line extends through the outlet hole, and a fan wheel is provided with a rotating shaft and a permanent magnet, the rotating shaft is rotatable In combination with the above-mentioned shaft member, the permanent magnet has an air gap between the winding group and the winding group; wherein the outer side wall of the frame body is provided with a second fastening portion for holding the power cord, the second buckle The holding portion is located between the air inlet and the air outlet, the second fastening portion is adjacent to the air outlet, and the second fastening portion includes two opposite fastening pieces, and the two fastening pieces have an opening therebetween. The opening is for the power cord to be forced in, and the two fastening pieces are used for holding the power cord. The axial flow fan of claim 6, wherein the frame has a top end located at the air inlet and a bottom end of the air outlet, and an inner hole edge of the outlet hole and the top end There is a first minimum distance therebetween, and the inner hole edge of the outlet hole has a second maximum distance from the bottom end. The axial flow fan of claim 7, wherein the base has a third maximum distance between a side edge of the air inlet and a bottom end of the frame, and the second maximum distance is not Greater than the third maximum distance. The axial flow fan of claim 7, wherein the connecting member has a fourth maximum distance between a side edge of the air inlet and a bottom end of the frame, and the second maximum distance is not Greater than the fourth maximum distance. The axial flow fan of claim 6, wherein the opening of the second fastening portion is aligned with the outlet hole in the axial direction. A fan frame of an axial flow fan, the frame includes a frame body and a base, the frame body is provided with an air inlet and an air outlet, and the frame body is provided with an outlet line between the air inlet and the air outlet a hole having an inner hole edge, the inner hole edge being closed, the base being connected to the frame by a plurality of connecting members; wherein the outer side wall of the frame body is provided with a first fastening portion, The first fastening portion is located between the air inlet and the air outlet, and the first fastening portion is adjacent to the air inlet. The first fastening portion includes two opposite fastening pieces, and the two fastening pieces have a Opening. The fan frame of the axial flow fan according to claim 11, wherein the frame body has a top end located at the air inlet and a bottom end of the air outlet, and the inner hole edge of the outlet hole is The top end has a first minimum distance therebetween, and the inner hole edge of the outlet hole has a second maximum distance from the bottom end. The fan frame of the axial flow fan of claim 12, wherein the base has a third maximum distance between a side edge of the air inlet and a bottom end of the frame, the second The maximum distance is not greater than the third maximum distance. The fan frame of the axial flow fan of claim 12, wherein the connecting member has a fourth maximum distance between a side edge of the air inlet and a bottom end of the frame, the second The maximum distance is not greater than the fourth maximum distance. The fan frame of the axial flow fan according to claim 11, wherein the opening of the first fastening portion is aligned with the outlet hole in the axial direction. A fan frame of an axial flow fan, the frame includes a frame body and a base, the frame body is provided with an air inlet and an air outlet, and the frame body is provided with an outlet line between the air inlet and the air outlet a hole having an inner hole edge, the inner hole edge being closed, the base being connected to the frame by a plurality of connecting members; The second side of the frame is provided with a second latching portion, the second latching portion is located between the air inlet and the air outlet, and the second latching portion is adjacent to the air outlet, and the second latching The portion includes two opposite fastening pieces, and the two fastening pieces have an opening therebetween. The fan frame of the axial flow fan according to claim 16, wherein the frame body has a top end located at the air inlet and a bottom end of the air outlet, and the inner hole edge of the outlet hole is The top end has a first minimum distance therebetween, and the inner hole edge of the outlet hole has a second maximum distance from the bottom end. The fan frame of the axial flow fan according to claim 17, wherein the base has a third maximum distance from a side edge of the air inlet and a bottom end of the frame, the second The maximum distance is not greater than the third maximum distance. The fan frame of the axial flow fan of claim 17, wherein the connecting member has a fourth maximum distance between a side edge of the air inlet and a bottom end of the frame, the second The maximum distance is not greater than the fourth maximum distance. The fan frame of the axial flow fan according to claim 16, wherein the opening of the second fastening portion is aligned with the outlet hole in the axial direction.