TWI453344B - Fan impeller structure and manufacturing method thereof - Google Patents

Description

Fan fan wheel structure manufacturing method

The invention relates to a method for manufacturing a fan fan wheel structure, in particular to a method for manufacturing a fan fan wheel structure which achieves a simplified process and saves man-hours.

According to the increasing popularity of personal computers and the booming of the computer industry, the problems of heat generation and heat dissipation of various electronic components are becoming more and more important. Therefore, the current use of DC brushless fans as the main heat dissipation component is the current trend. It is widely used in the current computer industry, and its structure is simple and small, and it can quickly solve the problem of heat generation and heat dissipation of electronic components.

Since the conventional DC brushless fan mainly comprises a rotor and a stator, the rotor is composed of a hub and a permanent magnet, and the stator is composed of a silicon steel sheet, a coil and a circuit board (referred to as a PCB), so The permanent magnet of the rotor and the corresponding silicon steel sheet and the coil wound thereon are inductively excited to operate.

However, in order to use a large magnetic force in response to the installation site or the user's needs, the conventional DC brushless fan usually converts a whole piece of permanent magnet into a composite tile type permanent magnet for use with the hub. In order to obtain a larger magnetic effect, but another problem is extended, when the hub is fixed with a plurality of permanent magnets of a tile type, it takes time to arrange the permanent magnets of the tile type at equal intervals. The inside of the hub, so that it is easy to cause the fixed positions of the permanent magnets of the tiles and the gap between them Problems that are difficult to control.

In order to improve the above problems, the manufacturer will add some fixed parts or tools to the fixed manufacturing to improve the fixed position and clearance problems. However, in addition to the ineffective effects, the manufacturing process will be complicated and the working hours will be increased. And the problem of improved product defect rate. As described above, the conventional disadvantages have the following disadvantages: 1. Increased working hours; 2. complicated manufacturing steps; 3. Improved product defect rate.

Therefore, how to solve the above problems and problems in the past, that is, the inventors of this case and the relevant manufacturers engaged in this industry are eager to study the direction of improvement.

Accordingly, in order to effectively solve the above problems, the main object of the present invention is to provide a method for manufacturing a fan fan wheel structure that achieves a simplified process.

A secondary object of the present invention is to provide a method of manufacturing a fan fan wheel structure that saves man-hours and improves product yield.

In order to achieve the above object, the present invention provides a method for manufacturing a fan fan wheel structure, which firstly provides a hub having a plurality of recessed grooves on one end surface, and inserts the hub into a mold having at least one cavity, through which the injection molding is formed. Filling the rubber material with the concave groove, so that the rubber material forms a plurality of fixing portions on the inner side of the hub, and then the wheel hub is separated from the mold; and the design of the method of the invention effectively simplifies the process and saves man-hours The effect of the person.

The above object of the present invention, as well as its structural and functional features, will be described in accordance with the preferred embodiments of the drawings.

The present invention relates to a fan fan wheel structure and a manufacturing method thereof. Please refer to FIGS. 1 and 2 for a perspective view of a first preferred embodiment of the present invention. The fan fan wheel structure 1 includes a hub 11 and a shaft center. 16. The plurality of blades and the plurality of fixing portions 13, wherein the hub 11 has a top portion 111, a side portion 112 and a plurality of recessed grooves 116. The side portion 112 is formed by extending axially from the periphery of the top portion 111, and the outer side ring is formed. There are such vanes (not shown), that is, the vanes are looped along the outer side of the side portion 112, and the side portion 112 and the top portion 111 together define an accommodation space 114.

The other end of the shaft core 16 is inserted into the side of the corresponding top portion 111, that is, one end of the shaft core 16 is axially extended from the side of the top portion 111 in the accommodating space 114; and the recesses The groove 116 is recessed along the circumference of the top portion 111 at the intersection of the top portion 111 and the side portion 112, and is arranged at equal intervals, but is not limited thereto. In the specific implementation, the groove 116 is recessed. They can also be arranged at unequal intervals.

In addition, the recessed slots 116 are further provided with at least the same holes 1161. The through holes 1161 are formed on the opposite sides of the recessed recesses 116, and the through holes 1161 are connected to the receiving space 114. The fixing portion 13 is disposed in an injection molding manner for the glue material to be inserted into the accommodating space 114, and in the specific implementation, when the fan fan wheel is in operation, the inside of the hub 11 can be penetrated through the through holes 1161. The heat of the accommodating space 114 (such as the shaft core 16 and the heat generated by the stator) is quickly dissipated, thereby achieving the effect of heat dissipation (or heat removal).

Continuing to refer to the third and fourth embodiments, the fixing portions 13 are disposed in the accommodating space 114, and are formed at positions opposite to the recessed grooves 116, and the fixing portions 13 are provided with a fixed end 131 and An extending end 132 is formed on the inner side of the top portion 111 opposite to the recessed grooves 116 (ie, the side of the top portion 111 in the accommodating space 114), and the extending end 132 is from the fixed end 131. The upper portion is formed to extend axially along the inner side of the adjacent side portions 112.

In addition, the fixing portions 13 define a receiving space 15 therebetween. The receiving space 15 is connected to the receiving space 114 for receiving a corresponding magnetic member 2, wherein the magnetic member 2 is a magnet. Or a permanent magnet (such as a tile-type permanent magnet); and each of the accommodating spaces 15 of the preferred embodiment is arranged at equal intervals, but is not limited thereto, and is used in the actual implementation of the present invention. The distance (or spacing) between the recessed grooves 116 can be designed and adjusted according to the required magnetic force and the number of magnetic members 2, and the interval between each receiving space 15 can be adjusted.

Moreover, by fixing the corresponding magnetic members 2 by the fixing portions 13, the magnetic members 2 can be quickly assembled and positioned on the inner side of the hub 11, so as to save the assembly man-hour.

Therefore, the hub 11 of the present invention is integrated with the plurality of fixing portions 13 to accommodate the design of the corresponding magnetic members 2, so that the assembly can be effectively facilitated, thereby effectively achieving the effects of saving man-hours and improving product yield.

Please refer to FIG. 5, which is a schematic flow chart showing a method for manufacturing a fan fan wheel structure according to a second preferred embodiment of the present invention, and supplemented by reference numerals 1 and 2. As shown in the figure, the method for manufacturing the fan fan structure includes the following steps:

(S1) providing a hub having a plurality of recessed grooves on one end surface; a hub 11 having a plurality of recessed grooves 116 at one end surface, the recessed groove 116 being recessed and formed at an adjacent peripheral position of the end surface of the hub 11 (ie, the top 111 of the aforementioned hub 11) Position at the junction with the side portion 112).

(S2) placing the hub into a mold having at least one cavity, and pouring the glue into the recessed grooves through the injection molding, so that the rubber material forms a plurality of fixing portions on the inner side of the hub; And into a mold (not shown) having at least one cavity, and through the injection molding method, pouring the glue into the through holes 1161 provided on opposite sides of the recessed grooves 116, so that the glue is from the The through holes 1161 flow into an accommodating space 114 of the hub 11 opposite to the positions of the recessed grooves 116 to form the fixing portions 13.

(S3) The hub and the mold are separated from each other; the hub 11 for molding the fixed portion 13 is detached (or separated) from the mold.

Therefore, the through hole 1161 of the recessed groove 116 is formed in the hub 11 of the present invention, and the adhesive material is poured into the accommodating space 114 to oppositely position the recessed grooves 116, and the fixing portions 13 are injection molded. The design integrated with the corresponding magnetic member 2 is effective to simplify the process of fixing the magnetic member 2 to the hub 11 (ie, the fixed process), thereby effectively controlling the fixed position of the fixing portion 13 and the interval between them. Size, and can achieve more labor saving and improve product yield.

Please refer to FIG. 6 for a schematic flow chart showing a third preferred embodiment of the present invention, and with reference to FIGS. 3 and 4, as shown in the figure, the method for manufacturing the fan fan wheel structure includes the following steps: (S1) providing a hub having a plurality of recessed grooves on one end surface; (S2) placing the hub into a mold having at least one cavity, and injecting the adhesive material into the recessed grooves through the injection molding, so that the rubber material is The inner side of the hub is formed with a plurality of fixing portions; (S3) the hub and the mold are separated from each other; the foregoing steps S1 - S3 are the same as the second preferred embodiment, and therefore will not be described again, but the embodiment and the foregoing The difference between the two preferred embodiments is the step S3: after the step of disengaging the hub from the mold, the method further comprises a step S4 of providing a plurality of magnetic members and accommodating one another between the fixed portions. The space is placed so that the magnetic members are accommodated in the accommodating space; that is, the plurality of magnetic members 2 are provided and placed in a receiving space 15 defined between the fixing portions 13 and the magnetic members 2 Included in the accommodating space 15 to Securely fixing portion 13 is positioned between the magnetic member 2 is accommodated with each other. The magnetic member 2 is a magnet or a permanent magnet (such as a tile-type permanent magnet). As described above, the present invention has the following advantages as compared with the prior art: 1. It has the effect of achieving a simplified process; 2. It has a saving man-hour; 3. It has the effect of improving product yield.

According to the above, it is only a preferred embodiment of the present invention, but only The features of the invention are not limited thereto, and any changes or modifications that can be easily conceived by those skilled in the art within the scope of the invention are intended to be included in the following claims.

1‧‧‧Fan fan wheel structure

11‧‧·wheels

111‧‧‧ top

112‧‧‧ side

114‧‧‧ accommodating space

116‧‧‧Recessed trough

1161‧‧‧through holes

13‧‧‧ Fixed Department

131‧‧‧ fixed end

132‧‧‧Extension

15‧‧‧Accommodation space

16‧‧‧Axis

2‧‧‧Magnetic parts

1 is a perspective view of a first preferred embodiment of the present invention; FIG. 2 is another perspective view of a first preferred embodiment of the present invention; and FIG. 3 is a first preferred embodiment of the present invention. 3 is a schematic exploded perspective view of a first preferred embodiment of the present invention; FIG. 5 is a schematic flow chart of a second preferred embodiment of the present invention; and FIG. 6 is a third preferred embodiment of the present invention. A schematic diagram of the flow of the embodiment.

1‧‧‧Fan fan wheel structure

11‧‧·wheels

111‧‧‧ top

112‧‧‧ side

114‧‧‧ accommodating space

116‧‧‧Recessed trough

13‧‧‧ Fixed Department

16‧‧‧Axis

2‧‧‧Magnetic parts

Claims (3)

A method for manufacturing a fan fan wheel structure includes: providing a hub having a plurality of recessed grooves on one end surface; placing the hub into a mold having at least one cavity, and pouring the glue into the recessed slots through the injection molding , the rubber material is formed on the inner side of the hub to form a plurality of fixing portions; and the hub is separated from the mold. The method for manufacturing a fan fan wheel structure according to claim 1, wherein the step of disengaging the hub from the mold further comprises a step of providing a plurality of magnetic members and defining one opposite to each other with respect to the fixing portions. The accommodating space is placed so that the magnetic members are accommodated in the accommodating space. The method for manufacturing a fan fan wheel structure according to claim 2, wherein the magnetic member is a magnet or a permanent magnet.