JP3143172U - Energy-saving heat dissipation fan with integral injection molded magnet ring - Google Patents

Abstract

An energy-saving heat-dissipating fan for a single-piece injection-molded magnet ring is provided.
A base 10, a fan blade unit 20, and an oil-impregnated bearing 30 and a cylinder bush 50 which are installed in the base central column in order. A PCB plate 60 and a coil stator 70 are sequentially fitted on the central column. The fan blade unit 20 is integrally formed by a fan blade 21, an injection molded magnet ring 22 having a magnetic field, and a shaft core 23. The injection-molded magnet ring 22 is located inside the fan wing, and the shaft core 23 is also fixed in the wing. The shaft core 23 is installed in the cylinder bush 50 and the oil bearing 30 in order. In addition, the present invention uses a specific plastic raw material, creates a mold, injection-molds a regular injection-molded magnet ring, substitutes for the design of a known rubber magnet tape and magnet outer frame unit, and the injection-molded magnet A ring and a shaft core are placed in a mold of the fan blade, and are integrally formed with the fan blade.
[Selection] Figure 5

Description

The present invention relates to a heat dissipation fan used in equipment such as a computer, and more particularly to an energy-saving heat dissipation fan of an integrally formed injection molded magnet ring.

As shown in FIGS. 1 and 2, the known heat-dissipating fan includes a base 1 ', which constitutes the overall outer shape of the fan, and determines the size and altitude of the fan. The oil-impregnated bearing 2 'is pushed into the central column 11' of the base 1 ', a plastic ring 3' is installed, a cylinder bush 4 'is inserted, and then combined by a PCB 20'.

The coil stator 5 'is combined by the upper insulating part 51', the silicon steel piece 52 'and the lower insulating part 53'. The coil stator 5 'is pushed onto the central column 11' of the base 1 ', thus completing the first half of the fan assembly. The rest is assembling the fan wing unit, which is more troublesome.

Further, as shown in FIGS. 3 and 4, the rubber magnet tape 6 'is pushed into the magnet outer frame 7' so as to be magnetized, and then placed in the fan blade 81 'of the fan blade 8'. First, the rubber magnet tape 6 ′ is pushed into the magnet outer frame 7 ′ based on the standard size, and the magnet outer frame unit is given high voltage magnetism, and after passing the Gaussian inspection, the magnet frame unit is moved to the axis 10 ′. Push into an empty plastic fan feather 8 'with a balance to correct. Measure the balance, and if it is unstable, correct the balance again and complete the complete fan wing unit.

Here, an O-ring 9 'is further fitted, and a fan blade unit is installed in the cylinder bush 4', the plastic ring 3 ', and the bearing 2', thus completing the fan product.

However, the assembly between the rubber magnet tape 6 ', the magnet outer frame 7' and the fan blade 8 'requires equipment such as a punch press, press jig, high voltage magnetic machine, magnetic jig, balance machine, etc. Since all processes are manual processes, the stability is extremely low and the rework rate is very high. That is, the known fan blade processing has many defects, is troublesome, wastes human labor, is unstable in quality, and reduces the production rate.

The problem to be solved by the present invention is to provide an energy-saving heat-dissipating fan of an integrally-molded injection-molded magnet ring, which is energy-saving, low-cost, stable in quality and high in efficiency with respect to the disadvantages existing in the known art. .

In order to solve the above-mentioned problems, the present invention provides the following energy-saving heat-dissipating fan of an integrally formed injection-molded magnet ring. That is, the energy-saving heat-dissipating fan of the integrally-molded injection-molded magnet ring according to the present invention includes a base, a fan blade unit, and an oil-impregnated bearing and a cylinder bush that are installed in the base central pillar in order. A plate and a coil stator are fitted in order, and the fan blade unit is integrally formed by a fan blade, an injection-molded magnet ring with a magnetic field and a shaft core, and the injection-molded magnet ring is installed on the inner wall of the fan blade. The shaft core is fixed to the center of the fan blade, and in turn is installed in the cylinder bush and the oil-impregnated bearing, and the injection-molded magnet ring has an integral structure, and the bearing and the cylinder bush A plastic ring is provided between the upper and lower insulation parts and a flexible enamel insulation coil is enclosed by the upper and lower insulation parts. Composed of silicon steel piece.

As described above, the present invention uses a specific plastic raw material, creates a mold, injection-molds an injection-molded magnet ring with a regular magnetic field, and designs known rubber magnet tape and magnet outer frame units. As an alternative. Furthermore, the injection-molded magnet ring can be put into a fan blade mold, integrally molded using a fan blade and a technique that does not require balancing, and then removed from the mold, and then the fan blade unit can be completely molded. In this way, the balance correction is unnecessary, and the components are sophisticated, so that various tools and equipment are not required for the work, and no troublesome work process is required. The molding of the injection molded magnet ring and the injection molded magnet Only through the integral molding of the ring and the fan blades, the assembly operation of the fan blade unit can be completed with only two injection moldings and removal of the mold, and then the entire fan is directly assembled. In this way, a large amount of equipment purchase costs can be saved, the number of workers can be reduced, and the cost can be greatly reduced. Moreover, all fan blade processing is completed by injection molding machines, so it is extremely stable, no need to adjust the balance, the processing process is simple, the time is shortened, the manpower is reduced, and the manpower is sufficient. The production rate is greatly improved.

Hereinafter, the present invention will be described in detail with reference to the drawings and specific implementation methods.

As shown in FIGS. 5 to 8, the energy-saving heat dissipation fan of the integrally molded magnet ring is a base 10, a fan blade unit 20, an oil-impregnated bearing 30 in a central pillar 11 installed in the base 10 in order, a plastic ring 40, Includes cylinder bushing 50.

A PCB plate 60 and a coil stator 70 are sequentially fitted on the central pillar 11, and the coil stator 70 is covered in the upper and lower insulating parts 71 and 72 and the upper and lower insulating parts 71 and 72. The silicon steel piece 73 is made of.

The fan blade unit 20 includes a fan blade 21, an injection molded magnet ring 22, and a shaft core 23. The injection-molded magnet ring 22 has an integral injection-molded structure, and the injection-molded magnet ring 22 is installed inside the wing body 211 of the fan wing 21. The shaft core 23 is fixed in the inner strut of the wing body 211, and is inserted into the cylinder bush 50, the plastic ring 40, and the oil bearing 30 in order when the shaft core 23 is assembled.

The fan blade unit 20 is molded by placing the injection-molded magnet ring 22 and the shaft core 23 together in a mold of the fan blade 21, and using an injection molding machine, the fan blade 21, the injection-molded magnet ring 22 and The shaft core 23 is integrally injection-molded to complete the fan blade unit 20.

The emphasis of the design of the present invention is to use a specific plastic raw material, create a mold, injection mold the injection molded magnet ring 22 with a regular magnetic field, and use the known rubber magnet tape and magnet outer frame unit. As an alternative to design. Further, the injection-molded magnet ring 22 is put in the mold of the fan blade 21 and integrally molded with the fan blade 21 to be removed from the mold, and then the fan blade unit 20 is molded.

This method does not require balance correction, and its components are so sophisticated that it does not require various tools and equipment in the work. Moreover, a troublesome work process is not required, and molding and unmolding are completed by only two injection moldings by simply molding the injection molded magnet ring 22 and integrally molding the injection molded magnet ring and the fan blade 21. Thus, the assembly operation of the fan blade unit can be completed, and the entire fan can also be assembled, thereby saving a large amount of equipment purchase costs. That is, the number of workers can be reduced and the cost can be greatly reduced. Moreover, all fan blade processing is completed by injection molding machines, so it is extremely stable, no need to adjust the balance, the processing process is simple, the time is shortened, the manpower is reduced, and the manpower is sufficient. The production rate is greatly improved.

The above is only an optimal embodiment of the energy-saving heat-dissipating fan of the integrally molded injection-molded magnet ring of the present invention, and does not limit the technical scope of the present invention. All the fine corrections, changes in equivalent effects and modifications made to the above embodiments based on the technical contents of the present invention are all included within the scope of the claimed registration of the present invention.

It is explanatory drawing of the three-dimensional decomposition structure of a well-known technique. It is explanatory drawing of the bird's-eye view structure after a well-known technique combination. It is explanatory drawing of the cross-sectional enlarged structure in the AA position of FIG. It is explanatory drawing of the expanded cross section of the state corresponding to a rubber magnet tape of a well-known technique, a magnet outer frame, and a fan blade combination. It is explanatory drawing of the three-dimensional decomposition structure of this invention. It is explanatory drawing of the bird's-eye view structure after this invention combination. It is explanatory drawing of the cross-sectional enlarged structure in the BB position of FIG. It is an expanded sectional view which shows the combination corresponding | compatible state of this invention integral injection molding magnet ring and a fan blade.

Explanation of symbols

1 'base
10 'shaft core
11 'central pillar
2 'oil-impregnated bearing
20 'PCB
3 'plastic ring
4 'cylinder bush
5 'coil stator
51 'upper insulation
52 'silicon steel piece
53 'Lower insulation parts
6 'rubber magnet tape
7 'magnet outer frame
8 'fan feather
81 'fan feather
9 'O-ring
10 'shaft core
10 base
11 Central pillar
20 Fan feather unit
21 fan feather
211 wings
22 Injection molded magnet ring
23 Shaft core
30 Oil-impregnated bearing
40 plastic rings
50 cylinder bush
60 PCB board
70 Coil stator
71 Upper insulation parts
72 Lower insulation parts
73 Silicon steel pieces

Claims (1)

An energy-saving heat-dissipating fan of an integrally molded injection-molded magnet ring including a base, a fan blade unit, an oil-impregnated bearing, and a cylinder bush, which are installed in sequence in the base central column,
A PCB plate and a coil stator are fitted in order on the base center column,
The fan blade unit is integrally formed with a fan blade, an injection-molded magnet ring having a magnetic field, and an axial core, and the injection-molded magnet ring has an integral structure, and the injection-molded magnet ring is installed on the inner wall of the fan blade. An energy-saving heat-dissipating fan for an integral injection-molded magnet ring, characterized in that the shaft core is fixed to the center of the wing of the fan wing and is sequentially installed in the cylinder bush and the oil-bearing bearing.

Images