TWM662834U - Parallel fan structure - Google Patents

Abstract

A parallel fan structure includes two fans and a tenon. Each of the fans has an outer frame, each side of the outer frame is formed with a groove, and a fan terminal seat is provided in each groove on the corresponding side of the two fans. The tenon is arranged between the two fans and embedded in the grooves on the corresponding sides of the two fans. The fan terminal seats on both sides of the tenon corresponding to the grooves of the two fans are respectively provided with a connector for docking. By utilizing the design of the modular tenon, the fans can be docked and assembled in a splicing manner, so that the fans are simple, fast and accurate in installation, and the fans can be connected in parallel without wires.

Description

Parallel fan structure

This work is related to the field of parallel fans, especially a parallel fan structure.

As shown in Figure 1, in order to complete the parallel connection of more than two cooling fans and to avoid the need for users to connect wires in parallel, the prior art parallel fan structure 1 has utilized the terminal block 121 on the outer frame 111 of the fan 11 for docking design.

As shown in FIG. 1, the parallel fan structure 1 adopts a method of omitting wires, and directly disposing the terminal block 121 on the outer side of the outer frame 111 of the fan 11 for docking. At this time, the user needs to hold the entire outer frame 111 of the fan 11 to operate the docking, so the user's positioning and force application when matching the pins on the terminal block 121 are not simple and convenient; at the same time, when the terminal blocks 121 (such as male terminal blocks and female terminal blocks) are docked, the user needs to overlap the terminal blocks 121 in the direction of docking to correctly and smoothly splice them, which not only generates inefficiency in repeated attempts in operation, but also reduces the agility of the telecommunication connection operation between the parallel fans 11.

In addition, the terminal base 121 protruding from the outer frame 111 of the fan 11 will also cause obstruction to the airflow, affecting the flow field wind pressure and causing noise and other problems.

Therefore, how to solve the above problems and deficiencies is what the creators of this case and the relevant manufacturers in this industry are eager to study and improve.

One of the purposes of this invention is to provide a parallel fan structure that can solve the above problems.

Another purpose of this invention is to provide a parallel fan structure that is more convenient for users to operate simply and quickly, and has a higher docking accuracy due to its non-directional nature.

Therefore, the parallel fan structure of the invention includes two fans and a tenon; the two fans each have an outer frame, the outer frame defines a space for accommodating the rotor, each side of the outer frame forms a groove, and the grooves on the corresponding sides of the two fans are each provided with a fan terminal seat; the tenon is arranged between the two fans and embedded in the grooves on the corresponding sides, and the fan terminal seats on both sides corresponding to the grooves of the two fans are respectively provided with a connector for docking, so that the two fans are arranged in a parallel telecommunication connection.

This invention uses the modular tenon design in the above structure to connect the fans together, making the installation of the fans simple, fast and accurate, and also enabling wire-free parallel connection between fans.

1: Parallel fan structure

11: Fan

111: Frame

121: Terminal block

2: Parallel fan structure

20: Fan

21: Outer frame

211: Side

212: Groove

2121: oblique mouth

22: Accommodation space

221: Fan wheel

23: Fan terminal block

25: Limiting hole

26: Anti-fool strip

3: Tenon

31: Side

33: Connector

35: convex buckle

36: Anti-fool slot

4: Mainboard wire assembly

41: tenon

411:Frontend

413: Backend

43: Cable arrangement

44: Cable terminal block

45: Guide buckle

Figure 1 is a schematic diagram of the parallel fan structure of the prior art; Figure 2 is a schematic diagram of the parallel fan structure of the present invention; Figure 3 is a partial enlarged schematic diagram of the corresponding side of one fan of the present invention; Figure 4 is a partial enlarged schematic diagram of the corresponding side of another fan of the present invention; Figure 5 is a schematic diagram of the tenon of the parallel fan structure of the present invention; Figure 6 is a partial cross-sectional schematic diagram of the parallel fan structure of the present invention; Figure 7 is a partial enlarged schematic diagram of the corresponding side of one fan of another embodiment of the present invention; Figure 8 is a schematic diagram of the tenon of another embodiment of the present invention; Figure 9 is a schematic diagram of the mainboard wire assembly of the parallel fan structure of the present invention.

The above-mentioned purpose of this invention and its structural and functional characteristics will be explained according to the preferred embodiments of the attached drawings.

Please refer to Figure 2, which is a schematic diagram of the parallel fan structure of this invention; Figure 3 is a partial enlarged schematic diagram of the corresponding side of one fan of this invention; Figure 4 is a partial enlarged schematic diagram of the corresponding side of another fan of this invention; Figure 5 is a schematic diagram of the tenon of the parallel fan structure of this invention; Figure 6 is a partial cross-sectional schematic diagram of the parallel fan structure of this invention; Figure 7 is a partial enlarged schematic diagram of the corresponding side of one fan of another embodiment of this invention; Figure 8 is a schematic diagram of the tenon of another embodiment of this invention; Figure 9 is a schematic diagram of the mainboard wire assembly of the parallel fan structure of this invention.

As shown in FIG. 2, the parallel fan structure 2 of the invention includes at least two fans 20. Each of the two fans 20 has an outer frame 21, and a space for accommodating a rotor is defined in the outer frame 21. For example, in the present embodiment, a space 22 for accommodating a fan wheel 221 is provided on an axis. A groove 212 is formed on each side 211 of the outer frame 21, and a fan terminal seat 23 is provided in each groove 212 of the corresponding side 211 between the two fans 20. As shown in FIG. 3 and FIG. 4, the groove 212 is a long strip groove formed by a depression on the side 211 of the outer frame 21, and has an arc-shaped wall inside.

Furthermore, as shown in FIG. 3 and FIG. 4, the upper or lower end of the groove 212 also has an oblique opening 2121 suitable for accommodating the fan terminal seat 23. In this figure, the fan terminal seat 23 is located in the oblique opening 2121 at the upper end of the groove 212. For example, a fan terminal seat 23 can be provided on the oblique opening 2121 of each groove 212, so that each fan terminal seat 23 is fixed to face the outer side of the opening of each groove 212. Furthermore, although the two fan terminal seats 23 are shown to be symmetrically arranged in this figure, it is not limited thereto. The two fan terminal seats 23 can also be asymmetrically arranged, for example, one fan terminal seat 23 is at the upper end of the groove 212, and the other fan terminal seat 23 is at the lower end of the groove 212.

Referring again to Figures 3 and 4, the fan terminal seat 23 can be integrally formed with the outer frame 21 during the injection molding of the outer frame 21 and fixed in the bevel 2121; or the outer frame 21 is divided into an upper shell and a lower shell, and the fan terminal seat 23 is installed between the upper and lower shells. Furthermore, each fan terminal seat 23 is connected to the fan circuit board (not shown) in the fan 20 via a wire set (not shown), a printed circuit board (PCB) or a flexible printed circuit board (FPC).

As shown in Figures 2, 5 and 6, a tenon 3 has two sides 31 corresponding to the grooves 212, and the fan terminal seats 23 in the grooves 212 of the sides 211 corresponding to the two fans 20 of the two sides 31 are respectively provided with a connector 33 for docking. Furthermore, by utilizing the design of the modular tenon 3, each fan 20 can be docked and combined in a simple, fast and accurate splicing manner, so that the two fans 20 are electrically connected in parallel between the corresponding sides 211 (for example: left and right). For example, the connector 33 can be formed on the surface by a wire penetrating the inner part of the tenon 3 through the two sides 31 of the tenon 3, so that the corresponding fan terminal blocks 23 between the two fans 20 can transmit power and signals through the two connectors 33 embedded on the tenon 3 for telecommunication connection.

Furthermore, the aforementioned fan terminal seat 23 is either a male terminal seat or a female terminal seat, and the connectors 33 are either a male end or a female end that matches the male terminal seat or the female terminal seat. For example, one fan terminal seat 23 disposed in the groove 212 of the corresponding side 211 of one fan 20 is a male terminal seat, and one fan terminal seat 23 disposed in the groove 212 of the corresponding side 211 of the other fan 20 is a female terminal seat; or, the two fan terminal seats 23 disposed in the groove 212 of the corresponding sides 211 of the two fans 20 are both male terminal seats or female terminal seats. Therefore, the connectors 33 on both sides 31 of the tenon 3 also need to be set to male ends or female ends corresponding to the fans 20, or both are male ends or female ends. It is worth mentioning that when the two corresponding fan terminal seats 23 of the two fans 20 are respectively set as a male terminal seat and a female terminal seat, it can also have a foolproof effect, because the connector 33 must also match the different docking settings of the male terminal seat and the female terminal seat. Therefore, if the docking direction is wrong, the connector 33 and the fan terminal seats 23 on the two fans 20 will not be allowed to dock.

In summary, when parallel connection is performed, the modular tenon 3 can be placed between two fans 20, and one side 31 of the tenon 3 is embedded in a groove 212 of one of the fans 20 and abuts against the oblique opening 2121 therein, so that the fan terminal seat 23 and the connector 33 are mutually connected; the other side 31 of the tenon 3 is correspondingly embedded in the groove 212 of the other fan 20, so that the two sides 31 of the tenon 3 are embedded between the two fans 20 and are completely covered and fixed by the two grooves 212. In this way, the two fans 20 are arranged in parallel telecommunication connection according to the corresponding sides 211. For example, the volume of the tenon 3 is preferably smaller than the volume of the two fans 20, so that after being connected in parallel with the two fans 20, it can be hidden in the groove 212 of the joint side 211 of the two fans 20.

Furthermore, the parallel fan structure 2 of the present invention also allows for the splicing of more than two fans 20 and more than one tenon 3. In other words, when the number of fans 20 is greater than two, as long as the corresponding side edges 211 between the two fans 20 are correspondingly embedded by a modular tenon 3, multiple fans 20 can be sequentially connected in parallel along the corresponding side edges 211 as needed. Moreover, regardless of whether one side 31 of the tenon 3 in the present embodiment has been embedded and connected with the groove 212 on any side edge 211 of one of the fans 20, the other side 31 that has not yet been connected can be used to continue to embed the corresponding side edge 211 of another fan 20 to continue to assemble and connect in parallel. Thus, the multiple fans 20 of the parallel fan structure 2 of the invention can be interconnected by means of the tenon 3 to achieve parallel power and signal transmission.

This invention not only eliminates the need for wires, but the user only needs to connect the two sides 31 of each tenon 3 to the grooves 212 between the two fans 20. The assembly operation can be completed without holding the entire outer frame 21 of the fan 20, which not only makes installation easier, but also allows the groove 212 to guide the connector 33 and the fan terminal seat 23 to align and connect with each other, thereby completing the telecommunication connection between at least two or more fans 20 and the corresponding number of tenons 3, achieving the purpose of parallel transmission of power and signals, and reducing repeated attempts during parallel assembly operations, making the operation faster.

Furthermore, because the invention allows users to use the modular tenon 3 and the grooves 212 of the two fans 20 to guide the splicing to complete the parallel connection, the parallel fan structure 2 of the invention has a higher docking accuracy due to its non-directionality, and is more suitable for the needs of the increasingly developed electronic products.

Furthermore, at least one limiting hole 25 is provided in each of the grooves 212 of the corresponding sides 211 of the two fans 20, and at least one convex buckle 35 matching with the limiting hole 25 is provided on each of the two sides 31 of the tenon 3. Thus, the limiting holes 25 and the convex buckles 35 are arranged in a concave-convex matching manner to detachably fasten the two fans 20 and the tenon 3, so that the fans 20 and the tenon 3 connected in parallel are less likely to be separated or dislocated due to external forces.

In addition, as shown in Figures 7 and 8, when the fan terminal seats 23 disposed in the grooves 212 of the corresponding sides 211 of the two fans 20 are both male or female terminal seats, in order to prevent the tenon 3 from being connected in the wrong direction and causing damage and other dangers, an anti-study groove 36 (as shown in Figure 9) can be disposed on one side 31 of the tenon 3 to cooperate with an anti-study strip 26 (as shown in Figure 8) disposed in one of the grooves 212 of the corresponding sides 211 of the two fans 20. In detail, the anti-study groove 36 can be extended from the outer end of the side surface of one side 31 of the tenon 3 and is not connected to the other side 31, and can be inserted from the opening of the groove 212 when connected, forming a kind of convex-concave matching structure of the tenon type.

As shown in FIG. 9, and referring to FIGS. 3, 4 and 6, the groove 212 of the other side 211 of at least one of the two fans 20 is also provided with another fan terminal seat 23. The present invention may further include a motherboard wire assembly 4, having a tenon 41, and a connector 33 is provided at the front end 411 of the tenon 41 to connect to the other fan terminal seat 23. A row of wires 43 is provided at the rear end 413 of the tenon 41, and a row of wires terminal seat 44 is provided at the end of the row of wires 43 to match and connect to the host circuit board (not shown). In this way, the present parallel fan structure 2 is connected to the host circuit board through the motherboard wire assembly 4 to achieve telecommunication connection, thereby obtaining power supply and signal transmission. Furthermore, the other side 211 of one of the two fans 20 is provided with the aforementioned limiting hole 25 in the groove 212, and the tenon 41 is also provided with at least one conductive protrusion 45 that cooperates with the limiting hole 25 in the groove 212, so that the fan 20 and the motherboard wire assembly 4 will not be separated or dislocated due to external force.

The above has been a detailed description of this creation, but what is described above is only a preferred embodiment of this creation and should not limit the scope of implementation of this creation. That is, all equal changes and modifications made according to the application scope of this creation should still fall within the scope of patent coverage of this creation.

2: Parallel fan structure

20: Fan

21: Outer frame

211: Side

212: Groove

22: Accommodation space

221: Fan wheel

3: Tenon

31: Side

33: Connector

Claims (7)

A parallel fan structure includes: two fans, each having an outer frame, a space for accommodating a rotor is defined in the outer frame, a groove is formed on each side of the outer frame, and a fan terminal seat is provided in the grooves on the corresponding sides of the two fans; and a tenon is provided between the two fans and embedded in the grooves on the corresponding sides, and the fan terminal seats on both sides of the tenon corresponding to the grooves of the two fans are respectively provided with a connector for docking, so that the two fans are arranged in a parallel telecommunication connection. The parallel fan structure as described in claim 1, wherein the fan terminal block is either a male terminal block or a female terminal block, and the connectors are either a male terminal or a female terminal that matches the male terminal block or the female terminal block. As described in claim 2, the parallel fan structure, wherein the grooves on the corresponding sides of the two fans are each provided with at least one limiting hole, and at least one protrusion matching the limiting hole is provided on each side of the tenon. As described in claim 3, the parallel fan structure, wherein the other side groove of one of the two fans is also provided with another fan terminal seat connected to a mainboard wire assembly. The parallel fan structure as described in claim 4, wherein the mainboard wire assembly has a tenon, a front end of the tenon corresponds to the other fan terminal seat of the connector that connects to the other side groove of one of the two fans, and a rear end of the tenon is provided with a cable with a cable terminal seat. As described in claim 5, the parallel fan structure, wherein the other side groove of one of the two fans is also provided with the limiting hole, and the tenon is also provided with at least one conductive protrusion to cooperate with the limiting hole of the groove. As described in claim 2, the parallel fan structure further includes a foolproof groove on one side of the tenon, which cooperates with a foolproof strip on one of the grooves on the corresponding sides of the two fans.