TWI461144B - Heat-dissipating fan - Google Patents

Description

Cooling fan

The present invention relates to a heat dissipation fan, and more particularly to a heat dissipation fan that is easy to perform power supply wiring installation work.

Conventional cooling fans typically have a power connection for an external power supply to operate the cooling fan. Generally, the fixed position of the power supply wiring must be properly arranged to ensure that the cooling fan can be effectively prevented from being loosened or caught in the cooling fan during the actual operation, so that the cooling fan can operate normally; In addition to the various types of cooling fans commonly used in the market, most of the power supply wirings must pass through a rather complicated winding and fixing manner, which causes inconvenience in assembly.

For example, please refer to FIG. 1 , for example, the new patent of "Fan Cable Management Structure" of the Republic of China Announcement No. 502821, which discloses a first conventional heat dissipation fan 70 having a cable management structure 71. The cable management structure 71 includes a bottom portion 711, two side support portions 712 and two baffle portions 713; thereby, the cable management structure 71 is such that a wire 72 (ie, power supply wiring) is placed in the bottom portion 711 in a meandering manner. Between the side support portion 712 and the baffle portion 713.

However, the main problem of the first conventional heat dissipating fan 70 is that the cable management structure 71 can provide a good fixing function of the wire 72; however, when the wire 72 is actually fixed, one end of the wire 72 must first be used. The wire 72 is sequentially passed between the bottom portion 711, the side support portion 712 and the baffle portion 713 through the winding of the heat dissipating fan 70 to the outside, thereby causing the wire 72 to be The difficulty of assembly work increases. In addition, the structure of the conventional heat dissipating fan 70 for fixing the wire 72 is also quite complicated, so that the overall manufacturing cost is relatively increased.

Please refer to the second and third figures. For example, the invention patent of "Ultra-thin cooling fan structure" of the Republic of China Bulletin No. 449682 discloses a second conventional cooling fan 80. The cooling fan 80 includes a casing 81 and a certain The sub-seat 82, a fan wheel 83, and a cover plate 84. The housing 81 has a chamber 811 and a channel 812 communicating with the chamber 811. The stator base 82 is disposed in the chamber 811, and the stator base 82 is provided with an electrical connection 821. The electrical connection is provided.埠821 is connected to a power connection 822; the fan wheel 83 is rotatably coupled to the stator base 82, and the fan wheel 83 has a permanent magnet 831; the cover plate 84 is provided with a convex plate 841, and the cover plate 84 is combined with the cover When the body 81 is 81, the convex plate 841 can correspondingly extend into the channel 812. Thereby, when the assembly operation of the power supply terminal 822 is performed, one end of the power supply connection 822 can be wound to the position of the channel 812, and penetrates through the channel 812 to the outside of the housing 81 for external power supply, and then The power supply wiring 822 is pressed and fixed by the convex plate 841.

However, the main problem of the second conventional heat dissipating fan 80 is that the channel 812 can be used to extend the end of the power cable 822 to the outside of the housing 81, but the electrical connection of the stator base 82 is 埠 821. Not facing the direction of the channel 812, that is, the electrical connection 821 to the channel 812 still has a predetermined distance; therefore, after the power connection 822 is connected to the electrical connection 821, the housing must still be in the prior The cavity 811 of the body 81 is disposed at a distance from the cavity 812 to extend outside the casing 81 through the channel 812, which increases the difficulty in winding and fixing the power connection 822, thereby causing inconvenience in assembly. . Moreover, when the power connection 822 is wound over a long distance in the housing 811 of the housing 81, it is relatively easy to be caught in the fan wheel 83 during the actual operation of the cooling fan 80.

Referring to FIG. 3, the second conventional heat dissipating fan 80 has the main problems of high difficulty in winding operation and inconvenient assembly, and also because the electrical connection 821 of the stator base 82 is located in the fan wheel. The lower position of the permanent magnet 831 of 83, therefore, after the cooling fan 80 is assembled, a distance (D) of a sufficient distance must be maintained between the bottom edge of the permanent magnet 831 of the fan wheel 83 and the stator seat 82 for The electrical connection 埠 821 (such as solder joints, etc.) and the power supply wiring 822 are accommodated, so as to ensure that the fan wheel 83 can be smoothly rotated; however, the conventional cooling fan 80 must also reserve a larger spacing. (D), the overall axial height of the cooling fan 80 cannot be effectively reduced, and the conventional cooling fan 80 is designed to be lighter, thinner and shorter.

Please refer to FIG. 4, for example, the new patent of "Renovation of the wire buckle structure of the drum fan" of the Republic of China Announcement No. 443435, discloses a third conventional heat dissipation fan 90 having a fan seat 91. The fan base 91 defines a wire slot 911 at a corner between adjacent side walls. The wire slot 911 can be provided with a block 92. Therefore, a wire 93 (ie, a power supply wire) of the heat dissipation fan 90 can be wound around the wire slot 911, and then penetrates through the wire slot 911 to the outside of the fan socket 91 for external power supply, and the filling Block 92 can also be pressed against the wire 93.

However, the main problem of the aforementioned third conventional heat dissipating fan 90 is that although the wire slot 911 is disposed at a corner between adjacent side walls of the fan base 91, the winding distance of the electric wire 93 is reduced; The electrical connection port (not shown) of the stator structure (not shown) of the fan 90 for driving the rotation of the fan wheel 94 is not directed toward the wire slot 911. When the electric wire 93 is connected to the electrical connection port, the wire 93 is connected to the electrical connection port. The wire 93 must be disposed at a distance from the space formed inside the fan holder 91 so as to extend through the wire slot 911 to the outside of the fan holder 91, thereby causing the winding of the wire 93 to be fixed. The increase in difficulty and the inconvenience of assembly increase are still necessary for improvement.

The present invention provides a heat dissipating fan for solving the problems of high difficulty in winding and fixing operations of the power supply wiring of the conventional cooling fan and inconvenient assembly, and the like.

Another object of the present invention is to provide a heat dissipation fan that can effectively reduce the overall axial height.

A cooling fan includes a frame, a substrate, a power connection, and a wheel. The fan frame has a side wall portion, and an inner side of the side wall portion defines an accommodating space, the accommodating space is provided with a shaft seat, and the side wall portion forms a wire opening connecting the accommodating space; the substrate is combined with the fan The substrate is provided with a coil set and an electrical connection, the coil set is electrically connected to the electrical connection, and the electrical connection is directed to the wire opening of the frame; the power connection is connected to the electrical connection at one end. The other end penetrates the wire opening; the fan wheel has a hub, the hub is provided with a central shaft and a permanent magnet, the central shaft is coupled to the shaft seat, and the permanent magnet is opposite to the coil set. Thereby, the electrical connection port can be located on a reference line passing through the shaft seat and the wire opening, so that the distance between the electrical connection port and the wire port is effectively shortened, so as to improve the assembly convenience of the power source connection. .

The electrical connection port of the substrate is located outside the rotation range of the permanent magnet of the fan wheel, and the electrical connection port is located between the outer circumference of the permanent magnet and the inner side wall of the side wall portion. Therefore, the spacing between the permanent magnets of the fan wheel and the substrate does not need to accommodate the electrical connection and the power connection, so the spacing can be appropriately reduced to effectively reduce the axial height of the cooling fan. efficacy.

A peripheral portion of the substrate is formed with a convex portion facing the wire opening of the frame, and the convex portion is located at the reference line, and the electrical connection is formed on the surface of the convex portion. Thereby, the electrical connection port can be closer to the wire opening, so that the power supply wire can be easily penetrated through the wire opening for further improving assembly convenience.

The substrate is composed of a wiring board and a driving circuit board. The coil group is formed on the wiring board, and the electrical connection is disposed on the driving circuit board. The driving circuit board is electrically connected to the wiring board. The electrical connection is electrically connected to the electrical connection, and the electrical connection is connected to the wire opening adjacent to the fan frame. Thereby, the electrical connection can be directly adjacent to the wire opening, and the power connection can be away from the rotation range of the fan wheel, so as to improve the assembly work convenience of the power connection and prevent the power connection from being caught in the fan wheel. And reducing the axial height of the cooling fan and the like.

The wire port is combined with a positioning member, the wire opening has a first pressing surface, the positioning member has a second pressing surface, and the first pressing surface and the second pressing surface are jointly pressed and clamped. Power wiring. Thereby, the effect of improving the combination stability of the power supply wiring is achieved.

The first pressing portion of the wire opening forms a first layer portion, and the second pressing portion of the positioning member faces the first layer portion to form a second layer portion, the first layer portion and the second layer portion Engage each other. Thereby, to provide better pull-proof effect of the power wiring.

The wire opening is located at one corner of the side wall portion. Thereby, the distance between the electrical connection port and the wire opening can be further reduced, so that the power supply wire can be more quickly and conveniently and directly penetrated outside the frame through the wire opening.

A bottom plate is formed on the inner side of the side wall of the fan frame, and the bottom plate is provided with a plurality of claws in the accommodating space, the shaft seat is coupled to the bottom plate and is located between the claws, and the substrate is coupled to the frame The housing space is accommodated and abuts against the bottom plate, and each of the claws is coupled to the outer circumference of the substrate. Thereby, the effect of improving the stability of the combination of the substrate and the frame can be achieved.

The coil set is bonded to the surface of the substrate in a wiring manner. Thereby, the effect of reducing the axial height of the substrate can be achieved.

The above and other objects, features and advantages of the present invention will become more <RTIgt; The heat dissipation fan 1 of the first embodiment of the present invention includes at least one frame 10, a substrate 20, a power supply connection 30, and a fan wheel 40. The fan frame 10 can be an axial fan frame or a blast fan frame. The embodiment shown in the figure shows that the fan frame 10 is a blast fan frame; the substrate 20 is coupled to the inner side of the fan frame 10, To drive the fan wheel 40 to rotate, the power cable 30 is electrically connected to the substrate 20 for external power supply; the fan wheel 40 is rotatably coupled to the inner side of the fan frame 10 to provide a wind-dissipating heat dissipation effect.

The fan frame 10 has a side wall portion 11 , and an inner side of the side wall portion 11 defines an accommodating space 12 . The accommodating space 12 defines a shaft seat 13 . An air inlet 14 and an air outlet 15 of the space 12; further, the side wall portion 11 forms a wire opening 16 , the wire opening 16 communicates with the receiving space 12 , and the wire opening 16 is preferably located in the frame 10 One of the corners of the side wall portion 11; as shown in Fig. 6, the shaft seat 13 extends to the wire opening 16 having a reference line (L) through which the reference line (L) mainly passes Wire port 16.

The substrate 20 is disposed in the accommodating space 12 of the sash frame 10, and is preferably coupled to the shaft base 13; the substrate 20 is provided with a coil assembly 21 and an electrical connection port 22; The surface of the substrate 20 is integrated by a layout or other suitable manner to further reduce the axial height of the substrate 20; the electrical connection 22 is electrically connected to the coil assembly 21, and the electricity is The electrical connection port 22 is preferably formed by one or several electrical contacts; wherein the electrical connection port 22 is directed toward the wire opening 16 of the frame 10 such that the electrical connection port 22 can be located at the reference line (L). The shaft seat 13, the wire port 16 and the electrical port 22 can be simultaneously located on the reference line (L) to ensure the distance between the electrical port 22 and the wire port 16. Can be effectively shortened.

One end of the power cable 30 is connected to the electrical connection port 22 of the substrate 20, and the other end can be directly extended to the outside through the wire port 16 of the fan frame 10 for external power supply; wherein the power cable 30 can be fixed by various fixings. Means (such as adhesion or fixing with a fixing member) are fixed to the wire opening 16 to prevent the power connection 30 from being loosened; thereby, the coil assembly 21 of the substrate 20 can be provided by the power supply connection 30 to actuate the fan. The wheel 40 rotates the current required for actuation.

The fan wheel 40 has a hub 41. The hub 41 is provided with a central shaft 411 and a permanent magnet 412. The central shaft 411 is coupled to the shaft seat 13 so that the fan wheel 40 can be rotated inside the frame 10 for permanent operation. The magnet 412 is opposed to the coil assembly 21.

When the heat dissipating fan of the present invention is used in practice, a magnetic interlinking action can be generated between the coil assembly 21 and the permanent magnet 412, thereby driving the fan wheel 40 to rotate; thereby, the cooling fan of the present invention can be introduced from the air inlet 14 The airflow is used to further drive the airflow to the outside space through the air outlet 15, so that the heat dissipation fan can provide a predetermined heat dissipation when installed in various electronic devices or electronic instruments.

The main features of the heat dissipating fan 1 of the first embodiment of the present invention include at least a wire opening 16 facing the frame 10 by the electrical connector 22, and the electrical connection port 22 is located. The structure of the reference line (L) is such that the electrical connection port 22 can be closer to the wire opening 16 , that is, the distance between the electrical connection port 22 and the wire opening 16 can be effectively shortened; After the one end of the power cable 30 is connected to the electrical connector 22, the other end of the power cable 30 can directly extend outside the fan frame 10 through the wire port 16, so that the power cable 30 is inside the fan frame 10. It is not necessary to pass through the wire opening 16 in a winding manner, so that the power supply wire 30 can pass through the wire opening 16 relatively straightly to improve the assembly convenience of the power supply wire 30, and in the actual operation of the cooling fan of the present invention. It is also ensured that the power supply wiring 30 is not caught in the fan wheel 40.

The heat dissipation fan 2 of the second embodiment of the present invention includes at least one frame 10, a substrate 20a, a power supply connection 30, and a fan wheel 40. The structure of the fan frame 10, the power supply line 30, and the fan wheel 40 are the same as those disclosed in the foregoing first embodiment, and will not be further described herein.

The substrate 20a of the second embodiment of the present invention is disposed in the accommodating space 12 of the fan frame 10; the substrate 20a is also provided with a coil group 21 and an electrical connection port 22; the coil group 21 is also electrically connected to the 埠22 is electrically connected, wherein the electrical port 22 is located outside the range of rotation of the permanent magnet 412 of the fan wheel 40. More specifically, the electrical port 22 can be located at the outer periphery of the permanent magnet 412. Between the inner side walls of the side wall portion.

The main features of the cooling fan 2 of the second embodiment of the present invention include at least the same: the electrical connection port 22 can be used to face the wire opening 16 of the fan frame 10, and the electrical connection is 22 is structurally designed on the reference line (L) to enhance the assembly convenience of the power supply wiring 30. More importantly, as shown in FIG. 9, the spacing (D) formed between the permanent magnet 412 of the fan wheel 40 and the substrate 20a does not need to accommodate the electrical connection 22 (such as solder joints, etc.) And the power supply wiring 30, therefore, the spacing (D) can also be relatively reduced to an appropriate distance, and the overall axial height of the cooling fan 2 can be effectively reduced, so that the cooling fan 2 can be designed to be lighter, thinner and shorter.

The heat dissipation fan 3 includes a frame 10, a substrate 20b, a power supply connection 30, and a fan wheel 40. The structure of the fan frame 10, the power supply line 30, and the fan wheel 40 are the same as those disclosed in the foregoing first embodiment, and will not be further described herein.

The substrate 20b of the third embodiment of the present invention is disposed in the accommodating space 12 of the fan frame 10; the substrate 20b is also provided with a coil group 21 and an electrical connection port 22; the coil group 21 is also electrically connected to the 埠22 is electrically connected. In more detail, the outer peripheral edge of the substrate 20b of the present embodiment forms a convex portion 23 facing the wire opening 16 of the fan frame 10, and the electrical connection port 22 is formed. On the surface of the convex portion 23, the convex portion 23 and the electrical connection port 22 are simultaneously located on the reference line (L).

The main features of the heat dissipation fan 3 of the third embodiment of the present invention include at least the same: the electrical connection port 22 can be used to face the wire opening 16 of the frame 10, and the electrical connection is 22 is structurally designed on the reference line (L) to enhance the assembly convenience of the power supply wiring 30. More importantly, the convex portion 23 of the substrate 20b is designed such that the electrical connection 22 of the substrate 20b is outside the rotation range of the permanent magnet 412 of the fan wheel 40. Further, the electrical connection 22 can be The convex portion 23 is used to be closer to the wire opening 16 so that the power supply wire 22 can be easily penetrated directly through the wire opening 16 to further improve the assembly convenience of the power supply wire 30.

The fourth embodiment of the heat dissipation fan of the present invention is shown in FIG. 12 and FIG. 13 . The heat dissipation fan 4 includes at least one frame 10 , a substrate 20 c , a power connection 30 , and a fan wheel 40 . The structure of the fan frame 10, the power supply line 30, and the fan wheel 40 are the same as those disclosed in the foregoing first embodiment, and will not be further described herein.

The substrate 20c of the fourth embodiment of the present invention is disposed in the accommodating space 12 of the sash frame 10; the substrate 20c is also provided with a coil assembly 21 and an electrical connection port 22; the coil assembly 21 is also electrically connected to the 埠22 is electrically connected. In more detail, the substrate 20c of the present embodiment is mainly composed of a wiring board 24 and a driving circuit board 25, and the coil group 21 is formed on the surface of the wiring board 24, which is formed in comparison with the foregoing embodiments. The connection port 22 is disposed on the surface of the driving circuit board 25; in addition, the driving circuit board 25 is electrically connected to the wiring board 24 so that the electrical connection port 22 can be located on the reference line (L) and adjacent to the fan The drive circuit board 25 includes a drive circuit (not shown) composed of a plurality of electronic components; thereby, the drive circuit board 25 can actuate the coil assembly 22 so that The fan wheel 40 is rotated to actuate.

The main features of the cooling fan 4 of the fourth embodiment of the present invention include at least the structural design of the electrical connection port 22 on the reference line (L) to enhance the power connection. 30 assembly convenience. More importantly, in this embodiment, the driving circuit board 25 can be used to directly connect the electrical connection port 22 to the wire opening 16 to assemble the power cable 30. It is more convenient and convenient. Moreover, the plurality of electronic components of the driving circuit board 25 can be located outside the rotation range of the permanent magnet 412 of the fan wheel 40, and the power wiring 30 can be further away from the rotation range of the fan wheel 40, thereby effectively reducing the number of electronic components. The overall axial height of the cooling fan 4 can also effectively prevent the power cable 30 from being caught in the fan wheel 40, ensuring that the cooling fan 4 can operate normally.

With the structural design concept of the heat dissipation fans 1, 2, 3, and 4 of the present invention described above, the common technical feature of the heat dissipation fans 1, 2, 3, and 4 of the embodiments is that the electrical connection port 22 is located at the reference line (L). The upper cymbal can also solve the problem that the power supply wiring assembly of the conventional cooling fan is not easy, and the heat dissipation fans 1, 2, 3, and 4 of the embodiments can further change other auxiliary structural features as described below. Preferably, the auxiliary structure can be arbitrarily combined with the heat dissipating fans 1, 2, 3, and 4 of the foregoing embodiments (hereinafter only one of the embodiments is taken as an example), so that the cooling fans 1, 2, 3, and 4 of the present invention are provided. The function of the side wall portion 11 of the first embodiment is preferably a bottom plate 111, as shown in the fifth and sixth embodiments. The bottom plate 111 is provided with a plurality of claws 112 in the accommodating space 12, and the shaft base 13 is coupled to the bottom plate 111 (which can be combined by integral molding or assembly) and is located between the claws 112; When the substrate 20 is disposed in the accommodating space 12 of the fan frame 10 and abuts the bottom plate 111, each of the substrates 20 The claw 112 can be snap-fitted to the outer circumference of the substrate 20 to provide a more stable bonding effect of the substrate 20.

As shown in the fifth and sixth embodiments, the heat dissipation fan 1 of the first embodiment is taken as an example. The fan frame 10 is preferably combined with an upper cover 18 having an air guiding opening (not shown); thereby, when the upper cover 18 is combined In the case of the frame 10, the air guiding opening of the upper cover 18 can be utilized to guide the airflow into the accommodating space 12 more smoothly.

As shown in FIG. 5 and FIG. 6 , the heat dissipation fan 1 of the first embodiment is used as an example. The wire opening 16 of the frame 10 is preferably combined with a positioning member 17 , wherein the wire opening 16 has a first pressing force. The locating member 17 has a second pressing surface 171; thereby, after the power cable 30 extends through the wire opening 16, the positioning member 17 can be coupled to the wire opening 16 to utilize the first The pressing surface 161 and the second pressing surface 171 jointly clamp the power connection 30 to improve the fixing effect of the power connection 30, and ensure that one end of the power connection 30 is not free from the electrical connection. Take off.

Referring to FIG. 14 , the first pressing surface 161 of the wire opening 16 preferably forms a first layer portion 162 , and the second pressing surface 171 of the positioning member 17 corresponds to the shape of the first layer portion 162 . More preferably, a second hierarchical portion 172 may be formed, and the first hierarchical portion 162 and the second hierarchical portion 172 may be coupled to each other. Therefore, when the first pressing surface 161 and the second pressing surface 171 are pressed together to sandwich the power wiring 30, the power wiring 30 can be formed to cooperate with the first layer portion 162 and the second layer portion 172. The turning state as shown in the figure provides a better anti-pull function, and can effectively prevent the external force from improperly pulling the power connection 30, ensuring that one end of the power connection 30 is less likely to be loosened from the electrical connection port 22.

As described above, the cooling fans 1, 2, 3, and 4 of the present invention can be used to face the wire opening 16 of the frame 10 by the electrical connection port 22, and the electrical connection port 22 is located on the reference line (L). The structural design ensures that the power cable 30 does not need to be passed through the wire opening 16 in the winding manner inside the frame 10 to effectively improve the assembly convenience of the power cable 30.

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.

[this invention]

1, 2, 3, 4. . . Cooling fan

10. . . Fan frame

11. . . Side wall

111. . . Bottom plate

112. . . Claw

12. . . Housing space

13. . . Shaft seat

14. . . Inlet

15. . . Air outlet

16. . . Wire mouth

161. . . First pressure surface

162. . . First class

17. . . Positioning member

171. . . Second pressure surface

172. . . Second class

18. . . Upper cover

20, 20a, 20b, 20c. . . Substrate

twenty one. . . Coil set

twenty two. . . Electrical connection埠

twenty three. . . Convex

twenty four. . . Wiring board

25. . . Drive board

30. . . Power wiring

40. . . Fan wheel

41. . . Wheel hub

411. . . The central axis

412. . . permanent magnet

[知知]

70. . . Cooling fan

71. . . Cable structure

711. . . bottom

712. . . Side support

713. . . Baffle

72‧‧‧Wire

80‧‧‧ cooling fan

81‧‧‧Shell

811‧‧ ‧ room

812‧‧‧ channel

82‧‧ ‧ Stator seat

821‧‧‧Electrical connection埠

822‧‧‧Power wiring

83‧‧‧fan wheel

831‧‧‧ permanent magnet

84‧‧‧ Cover

841‧‧‧ convex plate

90‧‧‧ cooling fan

91‧‧‧Fan

911‧‧‧ wire trough

92‧‧‧Filling

93‧‧‧Wire

94‧‧‧fan wheel

Figure 1: Schematic diagram of the bottom of the first type of cooling fan.

Figure 2: An exploded perspective view of a second type of cooling fan.

Figure 3: A cross-sectional view of a combination of a second type of cooling fan.

Figure 4: An exploded perspective view of a third type of cooling fan.

Fig. 5 is an exploded perspective view showing the heat radiating fan of the first embodiment of the present invention.

Fig. 6 is a plan view showing the combination of the heat radiating fan of the first embodiment of the present invention.

Fig. 7 is an exploded perspective view showing the heat radiating fan of the second embodiment of the present invention.

Fig. 8 is a plan view showing the combination of the heat radiating fan of the second embodiment of the present invention.

Fig. 9 is a sectional view showing the combination of the heat radiating fan of the second embodiment of the present invention.

Fig. 10 is an exploded perspective view showing the heat radiating fan of the third embodiment of the present invention.

Figure 11 is a plan view showing the combination of the heat dissipation fan of the third embodiment of the present invention.

Fig. 12 is an exploded perspective view showing the heat radiating fan of the fourth embodiment of the present invention.

Figure 13 is a plan view showing the combination of the heat dissipation fan of the fourth embodiment of the present invention.

Figure 14 is a partial cross-sectional view of the heat dissipating fan of the present invention pressed against the power supply wiring by the positioning member.

1. . . Cooling fan

10. . . Fan frame

11. . . Side wall

111. . . Bottom plate

112. . . Claw

12. . . Housing space

13. . . Shaft seat

14. . . Inlet

15. . . Air outlet

16. . . Wire mouth

161. . . First pressure surface

17. . . Positioning member

171. . . Second pressure surface

18. . . Upper cover

20. . . Substrate

twenty one. . . Coil set

twenty two. . . Electrical connection埠

30. . . Power wiring

40. . . Fan wheel

41. . . Wheel hub

411. . . The central axis

412. . . permanent magnet

Claims (15)

A heat dissipating fan includes: a frame having a side wall portion, an inner side of the side wall portion forming an accommodating space, the accommodating space is provided with a shaft seat, and the side wall portion forms a wire connecting the accommodating space a wire port is located at a corner of the side wall portion; a substrate is coupled to the frame, the substrate is provided with a coil group and an electrical connection port, and the coil group is electrically connected to the electrical connection. The electrical connector is facing and facing the wire opening of the frame at the corner position; a power connection, one end is connected to the electrical connection port, the other end is extending through the wire opening; and a fan wheel has a hub The hub is provided with a central shaft and a permanent magnet, the central shaft is coupled to the shaft seat, and the permanent magnet is opposite to the coil assembly; wherein the electrical connection is located on a reference line straightly passing through the shaft seat and the wire opening. The heat dissipation fan of claim 1, wherein the electrical connection of the substrate is outside the rotation range of the permanent magnet of the fan wheel, and the electrical connection port is located at an outer circumference of the permanent magnet and the side wall. Between the inner side walls of the part. The heat dissipating fan of claim 1 or 2, wherein the wire port is combined with a positioning member, the wire opening has a first pressing surface, and the positioning member has a second pressing surface, the first abutting Pressure surface and the second The pressure surface is clamped together to clamp the power wiring. According to the heat dissipation fan of claim 3, the first pressing surface of the wire opening forms a first layer portion, and the second pressing portion of the positioning member faces the first layer portion to form a second layer portion. The first hierarchical portion and the second hierarchical portion are engaged with each other. The heat dissipating fan of claim 1 or 2, wherein a side of the side wall portion of the frame is formed with a bottom plate, and the bottom plate is provided with a plurality of claws in the accommodating space, the shaft seat is coupled to the bottom plate and located Between each of the claws, the substrate is coupled to the accommodating space of the framing frame and abuts the bottom plate, and each of the claws is coupled to the outer peripheral edge of the substrate. The heat dissipation fan of claim 1 or 2, wherein the coil assembly is wire-bonded to the surface of the substrate. A heat dissipating fan includes: a frame having a side wall portion, an inner side of the side wall portion forming an accommodating space, the accommodating space is provided with a shaft seat, and the side wall portion forms a wire connecting the accommodating space The wire port is located at a corner of the side wall portion; a substrate is coupled to the frame, the substrate is provided with a coil group and an electrical connection port, and a peripheral portion of the substrate forms a convex portion, the convex portion And facing the wire opening of the fan frame at the corner position, the coil group is electrically connected to the electrical connection port, the electrical connection port is formed on the surface of the convex portion; a power connection is connected, and the end is connected to the electric a connecting port, the other end of the wire opening; and a wheel having a hub, the hub having a central axis and a permanent a magnet, the central shaft is coupled to the shaft seat, and the permanent magnet is opposite to the coil assembly; wherein the convex portion and the electrical connection port are located on a reference line straightly passing through the shaft seat and the wire opening. The heat dissipation fan of claim 7, wherein the electrical connection of the substrate is outside the rotation range of the permanent magnet of the fan wheel, so that the electrical connection is located at the outer circumference of the permanent magnet and the side wall. Between the inner side walls of the part. The heat dissipating fan according to claim 7 or 8, wherein the wire port is combined with a positioning member, the wire opening has a first pressing surface, and the positioning member has a second pressing surface, the first abutting The pressing surface and the second pressing surface jointly compress and clamp the power connection. The heat-dissipating fan of claim 9, wherein the first pressing surface of the wire opening forms a first layer portion, and the second pressing portion of the positioning member faces the first layer portion to form a second layer portion The first hierarchical portion and the second hierarchical portion are engaged with each other. The heat dissipating fan of the seventh or eighth aspect of the invention, wherein a side of the side wall portion of the frame is formed with a bottom plate, the bottom plate is provided with a plurality of claws in the accommodating space, and the shaft seat is coupled to the bottom plate and is located Between each of the claws, the substrate is coupled to the accommodating space of the framing frame and abuts the bottom plate, and each of the claws is coupled to the outer peripheral edge of the substrate. A heat dissipating fan includes: a frame having a side wall portion, an inner side of the side wall portion forming an accommodating space, the accommodating space is provided with a shaft seat, and the side wall portion forms a wire connecting the accommodating space Port, the wire port is located in the side wall portion a substrate, in combination with the fan frame, the substrate is composed of a wiring board and a driving circuit board, the wiring board forms a coil group, and the driving circuit board is provided with an electrical connection, the driving circuit board is electrically The wiring board is electrically connected to the electrical connection port, and the electrical connection is adjacent to the wire opening of the frame frame at the corner position; a power connection, the one end is connected to the electrical connection a connecting port, the other end of the wire opening; and a wheel having a hub, the hub is provided with a central shaft and a permanent magnet, the central shaft is coupled to the shaft, the permanent magnet is opposite to the coil set; The electrical connection port is located on a reference line that passes straight through the shaft seat and the wire opening. The heat dissipation fan of claim 12, wherein the wire port is combined with a positioning member, the wire opening has a first pressing surface, and the positioning member has a second pressing surface, the first pressing surface And the second pressing surface is pressed together to clamp the power connection. The heat dissipating fan of claim 13, wherein the first pressing surface of the wire opening forms a first layer portion, and the second pressing portion of the positioning member faces the first layer portion to form a second layer portion The first hierarchical portion and the second hierarchical portion are engaged with each other. The heat-dissipating fan of claim 12, wherein the side wall portion of the frame is formed with a bottom plate, and the bottom plate is provided with a plurality of claws in the accommodating space, and the shaft seat is coupled to the bottom plate. And located between each of the claws, the substrate is coupled to the accommodating space of the fan frame and abuts The bottom plate, each of the jaws is coupled to a peripheral edge of the outer side of the substrate.