TWI384127B - Fan - Google Patents

Description

fan

The present invention relates to a fan, and more particularly to an installation work that is easy to perform power supply wiring and has a fan having ribs (or vanes).

Conventional fans usually have a power supply wiring, and the setting position of the power supply wiring must be properly arranged to ensure that the fan is in the actual operation process, and the power supply wiring can be effectively prevented from being loosened or caught in the fan, so that the fan is normal. In addition, the conventional fans currently available on the market can be roughly divided into two types. The first conventional fan does not have a rib (or vane) design, while the second conventional fan has ribs (or The design of the static blade) is different for the power wiring of the two conventional fans.

For example, the invention patent of the "Ultra-thin cooling fan structure" of the Republic of China Bulletin No. 449682 and the new patent of the "Wireless cable structure improvement of the drum fan" of the Republic of China Announcement No. 443435 disclose the first conventional fan. . The first conventional fan is mainly formed in a casing (or a fan seat) to form a channel (or a wire slot), so that the power cable can be directly penetrated to the outside through the channel (or wire slot). External power supply, but the power supply wiring still has to pass through a rather complicated winding and fixing method, which causes inconvenience in assembly.

In addition, please refer to FIG. 1 , for example, the new patent of the “Fan Cable Management Structure” of the Republic of China Announcement No. 502831 discloses the aforementioned second conventional fan. The second conventional fan 70 has a cable management structure 71 (ie, a rib) and a plurality of air guiding holes 73; 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, the side support portion 712, and the bezel portion in a meandering manner. Between 713. The main problem of the second conventional fan 70 is that in order to ensure that the wire 72 penetrates outside the fan 70, the wire 72 does not block the air guiding hole 73 and affects the wind blowing effect; therefore, in general, One end of the wire 72 must be firstly passed through the air guiding hole 73 under the fan 70, and then the wire 72 is sequentially clamped to the bottom portion 711, the side support portion 712 and the bezel portion by means of winding back. Between 713, it is ensured that the wire 72 does not block the windshield 73; however, it also causes an increase in the difficulty of assembling the wire 72. In addition, the structure of the conventional fan 70 for fixing the wire 72 is also quite complicated, so that the overall manufacturing cost is relatively increased. Overall, there is still a need for improvements to the conventional fan 70 having a ribbed (or vane) design.

The present invention provides a fan for solving the problems of high difficulty in winding and fixing work of the conventional ribbed fan power supply and inconvenient assembly, and the like.

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

A fan includes a frame, a plurality of connectors, 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 plurality of connecting members Combined with the axis Between the seat and the side wall portion, one of the connecting members is a wire fixing portion, the wire fixing portion has a joint end facing the wire mouth, and the joint end is oppositely connected with the wire port; the substrate is combined with the frame The substrate is provided with a coil set and an electrical connection, the coil set is electrically connected to the electrical connection; the power connection is located at the connection fixing portion, and one end of the power connection is connected to the electrical connection port, and the other end is connected Inserting 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, the permanent magnet is opposite to the coil set; wherein the wire port is electrically connected The power and wiring wires are placed straight on a reference line that extends in the radial direction of the shaft seat. Thereby, the wire fixing portion can be closer to the wire opening, and the power wire can be directly penetrated through the wire port through the wire fixing portion, so as to improve the assembly convenience of the power wire.

The bonding end of the wire fixing portion is located on the reference line, and the electrical connection of the substrate faces the wire opening of the fan frame. Thereby, the electrical connection port can be closer to the wire opening, so that the other end of the power connection can be more easily penetrated through the wire opening through the wire fixing portion, so that the power connection wire does not need to be worn in a winding manner. Extend the wire opening.

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 fan. .

a joint end of the wire fixing portion is located on a reference line passing through the shaft seat and the wire opening, and a peripheral portion of the substrate forms a convex portion, and the convex portion is formed The electrical connection port is formed on the surface of the protruding portion and facing the wire opening of the fan frame. 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 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 surface of the wire opening forms a first layer portion, and the second pressing surface of the positioning member forms a second layer portion, and the second layer portion corresponds to the shape of the first layer portion. 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 connection can directly penetrate the outside of the frame through the wire opening.

A bottom plate is formed on the inner side of the side wall portion of the fan frame, and a plurality of claws are disposed on the surface of the bottom plate in the accommodating space. The shaft seat is coupled to the bottom plate and located between the claws, and one end of each of the connecting members The side wall portion is connected to the bottom plate, and the other end is connected to the bottom plate. The substrate is coupled to the receiving space of the fan frame and abuts the bottom plate, and each of the claws is coupled to the outer peripheral edge 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;

Referring to Figures 2 and 3, the fan of the present invention includes at least one frame 10, a plurality of connectors 20, a substrate 30, a power supply terminal 40, and a fan wheel 50. The fan frame 10 is a fan frame structure having ribs (or vanes); the plurality of connecting members 20 (ie, ribs or vanes) are located inside the frame 10; the substrate 30 is coupled to the inside of the frame 10. The driving power cable 40 is electrically connected to the substrate 30, and is coupled to one of the connecting members 20 for external power supply; the fan wheel 50 is rotatably coupled to the inner side of the fan frame 10, thereby providing A drive to cool the heat.

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 is located.

The connecting member 20 is coupled between the shaft seat 13 and the side wall portion 11 , wherein a connecting member 20 is a wire fixing portion 20 ′ having a combination facing the wire opening 16 . The end 21 is oppositely connected to the wire opening 16 of the fan frame 10.

The substrate 30 is disposed in the accommodating space 12 of the sash frame 10, and is preferably coupled to the pedestal 13; the substrate 30 is provided with a coil assembly 31 and an electrical connector 32; Using wiring ( The layout or other suitable manner is integrated on the surface of the substrate 30 to further reduce the axial height of the substrate 30; the electrical connection port 32 is electrically connected to the coil assembly 31.

The power cable 40 is passed through the wire fixing portion 20' to ensure that the power cable 40 does not block the air outlet 15 of the fan frame 10 to avoid affecting the air blowing effect; the power cable 40 is preferably further fixed to the wire. The surface of the fixing portion 20' is ensured that the power connection 40 is not arbitrarily displaced or detached; wherein the fixing manner of the power connection 40 and the wiring fixing portion 20' can be fixed by means of adhesion, snapping or fixing with a suitable fixing element. . In addition, the power connection 40 is connected to the electrical connection port 32 of the substrate 30 at one end, and the other end can pass through the wire opening 16 of the frame 10 to the outside for the external power supply after passing through the connection fixing portion 20'. The power cable 40 can be fixed to the wire port 16 by various fixing means (such as adhesion or fixing by using a fixing component, etc.) to prevent the power cable 40 from being loosened at any time; thereby, the power cable 40 can be provided by the power cable 40. The coil assembly 31 of the substrate 30 actuates the current required to rotate the fan wheel 50.

The fan wheel 50 has a hub 51. The hub 51 is provided with a central shaft 511 and a permanent magnet 512. The central shaft 511 is coupled to the shaft seat 13 so that the fan wheel 50 can be rotated inside the frame 10. The magnet 512 is opposed to the coil assembly 31.

When the fan of the present invention is in actual use, a magnetic interlinking action can be generated between the coil assembly 31 and the permanent magnet 512, thereby driving the fan wheel 50 to rotate; thereby, the fan of the present invention can introduce airflow from the air inlet 14 . And the fan wheel 50 is further used to drive the airflow to be discharged to the external space through the air outlet 15 so that the fan is installed in various electronic devices or electronic instruments. It can provide a predetermined heat dissipation effect.

The main features of the fan of the present invention include at least one of the connecting members 20 as the wire fixing portion 20', and the connecting end 21 of the wire fixing portion 20' is connected to the wire opening. 16. The wiring fixing portion 20' can be adjacent to the wire opening 16; thereby, when one end of the power cable 40 is connected to the electrical connector 32, the power cable 40 can pass through the wire fixing portion 20' The other end of the power cable 40 can be directly penetrated to the outside of the fan frame 10 through the wire opening 16; therefore, the power cable 40 does not need to be passed through the wire opening 16 in the manner of winding back inside the frame 10. The power cable 40 can be straightly passed through the wire port 16, and the power cable 40 can be effectively fixed by the wire fixing portion 20' to improve the assembly convenience of the power cable 40. In operation, it is also ensured that the power supply wiring 40 is not caught in the fan wheel 50.

According to the structural design concept of the fan of the present invention, the fan of the present invention can further change other accessory structural features as described below, so that the function of the fan of the present invention is more perfect, wherein: please refer to Figures 2 and 3 The shaft seat 13 extends to the wire opening 16 and has a reference line (L). The reference line (L) mainly passes through the shaft seat 13 and the wire opening 16 and extends along the radial direction of the shaft seat 13; The bonding end 21 of the wire fixing portion 20 ′ is preferably located on the reference line (L), and the electrical connection port 32 of the substrate 30 is matched to the wire opening 16 of the frame 10; thereby, the wire opening 16 The electrical connection 埠32 and the power connection 40 can be located straight on the reference line (L), and the electrical connection 埠32 can be further In order to access the wire opening 16, the other end of the power cable 40 can be more easily passed through the wire opening 16 via the wire fixing portion 20' with the shortest straight line distance to lift the power wire 40. Assembly convenience.

The inside of the side wall portion 11 of the fan frame 10 is preferably formed with a bottom plate 111. The surface of the bottom plate 111 located in the accommodating space 12 is provided with a plurality of claws 112. 13 is combined with the bottom plate 111 (which can be combined by integral molding or assembly) and located between the claws 112, and one end of each of the connecting members 20 is connected to the inner side wall of the side wall portion 11, and the other end is connected to the bottom plate. The outer periphery of the substrate 30; thereby, when the substrate 30 is disposed in the accommodating space 12 of the sash frame 10 and abuts the bottom plate 111, each of the claws 112 can be snap-fitted to the outer peripheral edge of the substrate 30 to provide the The substrate 30 has a more stable bonding effect.

Referring to Figures 2 and 3, the wire opening 16 of the frame 10 is preferably coupled to a positioning member 17, wherein the wire opening 16 has a first abutting surface 161, and the positioning member 17 has a second abutment. The pressing surface 171; thereby, after the power cable 40 extends through the wire opening 16, the positioning member 17 can be coupled to the wire opening 16 to utilize the first pressing surface 161 and the second pressing surface 171. The power cable 40 is clamped together to improve the fixing effect of the power cable 40, and it is ensured that one end of the power cable 40 is not detached from the electrical connector 32.

Referring to FIG. 4, 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 can be formed, and the first hierarchical portion 162 and the second hierarchical portion 172 can be Corresponding to each other. Therefore, when the first pressing surface 161 and the second pressing surface 171 jointly press and clamp the power connection 40, the power connection 40 can be formed to cooperate with the first hierarchical portion 162 and the second hierarchical 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 wiring 40, ensuring that one end of the power wiring 40 is less likely to be loosened from the electrical connection port 32.

Referring to FIGS. 5 and 6, another structure of the substrate 30a is disclosed. The electrical connection 32 of the substrate 30a is preferably located outside the rotation range of the permanent magnet 512 of the fan wheel 50. More specifically, The electrical connection port 32 can be located between the outer circumference of the permanent magnet 512 and the inner side wall of the side wall portion. Therefore, as shown in FIG. 7, the spacing (D) formed between the permanent magnet 512 of the fan wheel 50 and the substrate 30a does not need to accommodate the electrical connection 32 (such as solder joints, etc.) and The power supply wiring 40, therefore, the spacing (D) can also be relatively reduced to an appropriate distance to effectively reduce the overall axial height of the fan of the present invention.

Referring to FIGS. 8 and 9, another structure of the substrate 30b is disclosed. The bonding end 21 of the wire fixing portion 20' is preferably located on the reference line (L), and the position of the wire fixing portion 20' is matched. Preferably, the outer periphery of the substrate 30b can form a convex portion 33 facing the wire opening 16 of the frame 10, and the convex portion 33 is also located at the reference line (L); in addition, the convex portion 33 can be combined The wire fixing portion 20' is formed on the surface of the convex portion 33. Therefore, by using the convex portion 33 of the substrate 30b, the electrical connection 32 of the substrate 30b can be located outside the rotation range of the permanent magnet 512 of the fan wheel 50, and more importantly, when the convex portion 33 is combined. After the wiring fixing portion 20', due to the electrical connection 埠 32 shape The surface of the convex portion 33 is formed, so that the electrical connection port 32 can be closer to the wire opening 16 so that the power connection wire 40 can be easily penetrated through the wire opening 16 to further improve the assembly of the power connection 40. Sex.

As described above, the fan of the present invention can utilize the structural design of the connecting end 21 of the wire fixing portion 20' to connect the wire opening 16 to improve the power wiring of the conventional fan structure having ribs (or vanes). The problem of the installation is not easy, so that the wire fixing portion 20 ′ can be closer to the wire opening 16 , and the power wire 40 can be directly passed through the wire opening 16 through the wire fixing portion 20 ′ to effectively lift the power wire 40 . Assembly convenience.

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〕

10‧‧‧Fan frame

11‧‧‧ Side wall

111‧‧‧floor

112‧‧‧Claws

12‧‧‧ accommodating space

13‧‧‧ shaft seat

14‧‧‧Air inlet

15‧‧‧air outlet

16‧‧‧ wire mouth

161‧‧‧First pressure surface

162‧‧‧First Class

17‧‧‧ Positioning parts

171‧‧‧second pressure surface

172‧‧‧Second Level Department

20‧‧‧Connecting parts

20’‧‧‧Wiring fixing section

21‧‧‧Binding end

30, 30a, 30b‧‧‧ substrate

31‧‧‧ coil group

32‧‧‧Electrical connection埠

33‧‧‧ convex

40‧‧‧Power wiring

50‧‧‧fan wheel

51‧‧·wheels

511‧‧‧ center axis

512‧‧‧ permanent magnet

[study]

70‧‧‧fan

71‧‧‧Management structure

711‧‧‧ bottom

712‧‧‧Side Support Department

713‧‧‧Baffle Department

72‧‧‧Wire

73‧‧‧wind guide hole

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

Fig. 2 is an exploded perspective view of the fan of the present invention.

Fig. 3 is a plan view showing the combination of the fan of the present invention.

Figure 4: An exploded perspective view of the fan of the present invention pressed against the power supply wiring by a positioning member.

Fig. 5 is an exploded perspective view showing the electrical connection of the substrate of the fan of the present invention outside the permanent magnet.

Figure 6 is a combined plan view of the electrical connection of the substrate of the fan of the present invention outside the permanent magnet.

Figure 7 is a cross-sectional view showing the electrical connection of the substrate of the fan of the present invention outside the permanent magnet.

Fig. 8 is an exploded perspective view showing the substrate of the fan of the present invention having a convex portion.

Fig. 9 is a combined plan view showing a case where the substrate of the fan of the present invention has a convex portion.

10‧‧‧Fan frame

11‧‧‧ Side wall

111‧‧‧floor

112‧‧‧Claws

12‧‧‧ accommodating space

13‧‧‧ shaft seat

14‧‧‧Air inlet

15‧‧‧air outlet

16‧‧‧ wire mouth

161‧‧‧First pressure surface

17‧‧‧ Positioning parts

171‧‧‧second pressure surface

20‧‧‧Connecting parts

20’‧‧‧Wiring fixing section

21‧‧‧Binding end

30‧‧‧Substrate

31‧‧‧ coil group

32‧‧‧Electrical connection埠

40‧‧‧Power wiring

50‧‧‧fan wheel

51‧‧·wheels

511‧‧‧ center axis

512‧‧‧ permanent magnet

Claims (13)

A 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 opening connecting the accommodating space a plurality of connecting members are coupled between the shaft seat and the side wall portion, wherein one of the connecting members is a wire fixing portion, the wire fixing portion has a joint end facing the wire mouth, the joint end and the wire The base plate is coupled to the frame, the substrate is provided with a coil set and an electrical connection port, and the coil set is electrically connected to the electrical connection; a power supply connection is located at the wire fixing portion, the power supply One end of the wiring is connected to the electrical connection port, and the other end is connected to the wire opening; and a wheel has a hub, the hub is provided with a central shaft and a permanent magnet, the central shaft is coupled with the shaft seat, the permanent magnet and the The coil set is opposite; wherein the wire port, the electrical connection port and the power connection wire are directly located on a reference line, and the reference line extends in a radial direction of the shaft seat. The fan of claim 1, wherein the bonding end of the wire fixing portion is located on the reference line, and the electrical connection of the substrate faces the wire opening of the fan frame. The fan of claim 1, wherein the joint end of the wire fixing portion is located on the reference line, and a peripheral portion of the substrate forms a convex portion, and the convex portion is combined with the wire fixing portion and the wire facing the frame The electrical connection port is formed on the surface of the convex portion. The fan according to 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. Between the inner side walls of the side wall portion. The fan of claim 1, 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 The pressing surface and the second pressing surface jointly compress and clamp the power connection. The fan of claim 4, wherein 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, the first pressing surface and The second pressing surface is pressed together to clamp the power wiring. The fan according to claim 5, wherein the first pressing surface of the wire opening forms a first layer portion, and the second pressing surface of the positioning member forms a second layer portion, wherein the second layer portion corresponds to The first hierarchical portion is engaged. A fan according to claim 1, 2 or 3, wherein the wire opening is located at a corner of the side wall portion. A fan according to claim 4, wherein the wire opening is located at a corner of the side wall portion. The fan of the first aspect of the invention, wherein the inner side of the side wall portion of the fan frame forms a bottom plate, and the bottom plate is provided with a plurality of claws on the surface of the accommodating space, and the shaft seat is coupled with the bottom plate. The bottom plate is located between each of the claws, and one end of each of the connecting members is connected to the side wall portion, and the other end is connected to the bottom plate, and the substrate is coupled to the receiving 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. A fan according to the fourth aspect of the invention, wherein a side of the side wall portion of the fan frame is formed with a bottom plate, and the bottom plate is provided with a plurality of claws on the surface of the accommodating space, the shaft seat is coupled to the bottom plate and is located at each One end of each of the connecting members is connected to the side wall portion, and the other end is connected to the bottom plate. The substrate is coupled to the receiving space of the fan frame and abuts the bottom plate. Each of the claws is coupled to the substrate. The outer circumference. A fan according to claim 1, 2 or 3, wherein the coil assembly is wired to the surface of the substrate. A fan according to claim 4, wherein the coil assembly is wired to the surface of the substrate.