TWI395877B - Shock absorber - Google Patents

Description

Shock absorption fan

The present invention relates to a fan, and more particularly to a shock absorbing fan.

The application range of the cooling fan is extensive, and the extended applications of the cooling fan can be seen in electronic instruments, industrial products, and even the hot CPUs in recent years.

However, due to factors such as manufacturing accuracy, assembly error, rotational speed, and load, existing cooling fans are often accompanied by vibrations during operation, and in general, the housing of the existing cooling fan is locked to a computer case or heat sink. A mounting structure of the fins, therefore, when the cooling fan generates vibration, the housing and the mounting structure may cause noise to affect the quality of life due to mutual impact, especially in a long-term environment full of noise, which is more likely to generate psychology. And the adverse effects of physiology.

Referring to Fig. 1, in order to improve the noise caused by the vibration, the related art has developed a technique disclosed in the U.S. Patent No. 7,819,053, which is improved by using a setting frame 2 to surround a fan 1 while being made of an elastic material. The formed film 3 is connected between the mounting frame 2 and the fan 1. The fan 1 includes a housing 11 and a fan wheel 12 pivotally mounted in the housing 11 and the housing A coupling member 13 is protruded from the outer periphery of the mounting frame 2, and the opposite side edges of the film 3 are formed with a latching groove 31 that cooperates with the two coupling members 13. 31 is combined with the two coupling members 13 to connect the film 3 to the inner circumference of the mounting frame 2 and the outer circumference of the housing 11 to absorb the vibration of the housing 11 to avoid generates noise.

The film 3 attached to the outer periphery of the mounting frame 2 and the outer periphery of the housing 11 can absorb the vibration of the housing 11 to avoid noise, but still has the following disadvantages to be improved:

1. Inconvenient assembly: since the film 3 is located between the inner periphery of the mounting frame 2 and the outer periphery of the housing 11, the card groove 31 on the film 3 is not easily observed during assembly and corresponds to The relative position of the joint members 13 results in inconvenience in assembly.

2. High cost: in order to connect the film 3 to the inner circumference of the mounting frame 2 and the outer circumference of the housing 11, it is necessary to additionally attach to the outer circumference of the housing 11 and the inner circumference of the mounting bracket 2 The coupling member 13 is provided, and the groove 31 which cooperates with the two coupling members 13 is formed on the opposite side edges of the film 3, which is complicated in manufacturing procedure and relatively high in manufacturing cost.

3. The volume is larger: since the coupling member 13 is protruded from the outer periphery of the housing 11 and the inner circumference of the mounting frame 2, and the film 3 is located at the outer periphery of the housing 11 and the arrangement Between the inner circumferences of the frame 2, the spacing between the housing 11 and the installation frame 2 is greatly increased, which not only makes the overall lateral volume larger, but also wastes space, and can only be used for a large space. .

Accordingly, it is an object of the present invention to provide a shock absorbing fan that can absorb vibration and reduce noise.

Therefore, the shock absorbing fan of the present invention comprises a housing, a fan wheel, an outer frame spaced around the outer periphery of the housing, and a connecting the housing and the outer frame Shock absorber unit.

The housing has a base wall and a surrounding wall connected to the periphery of the base wall, the surrounding wall has a first extending portion extending upward from a periphery of the base wall, and a downward extending from a periphery of the base wall The second extension.

The fan wheel is pivotally disposed on a base wall of the housing.

The shock absorbing unit includes a first coupling member disposed on the second extending end edge of the housing and surrounding the fan wheel, a second coupling member disposed on the top edge of the outer frame and surrounding the housing, and a plurality of The first coupling member and the shock absorbing member of the second coupling member are connected at intervals, wherein the shock absorbing member is made of an elastic material.

The utility model has the advantages that the shock absorbing member made of the elastic material absorbs the vibration caused by the rotation of the sliding seat of the housing, thereby effectively reducing the noise generated by the vibration; and because the first and second combination of the shock absorbing unit The components are respectively disposed on the bottom edge of the shell and the top edge of the outer frame, which is convenient and quick to assemble, and has low manufacturing cost and relatively small volume.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Referring to FIG. 2 and FIG. 3, a preferred embodiment of the shock absorbing fan 4 of the present invention comprises a housing 41, a fan wheel 42 pivoted in the housing 41, and a frame spaced around the outer periphery of the housing 41. 43. A shock absorbing unit 44 that connects the housing 41 and the outer frame 43.

The housing 41 has a base wall 411 and a surrounding connection to the base wall 411 a peripheral wall 412 having a first extending portion 413 extending upward from a periphery of the base wall 411 and a second extending portion 414 extending downward from a periphery of the base wall 411, wherein the surrounding wheel 42 is pivotally disposed on the base wall 411.

The outer frame 43 has a first end 431 at the top edge and a second end 432 opposite the first end 431.

The shock absorbing unit 44 includes a first joint member 441 disposed at an end edge of the second extending portion 414 of the surrounding wall 412 and surrounding the fan wheel 42. The first joint member 441 disposed on the top edge of the outer frame 43 and surrounding the shell seat 41 a second coupling member 442, and a plurality of shock absorbing members 443 that are spaced apart from the first coupling member 441 and the second coupling member 442, wherein the first coupling member 441 has a second extension portion with the surrounding wall 412 The second engaging member 442 has a first engaging groove 444, and the second engaging member 442 has a second receiving groove 445 which cooperates with the top edge of the first end portion 431 of the outer frame 43 and faces the first receiving groove 444. The edge of the second extending portion 414 of the surrounding wall 412 is disposed in the first card groove 444, and the top edge of the first end portion 431 of the outer frame 43 is locked in the second card groove 445. And the shock absorbing member 443 is made of an elastic material.

In the preferred embodiment, the first and second coupling members 441 and 442 and the shock absorbing member 443 are all made of an elastic body, and the shock absorbing member 443 is elongated to connect the first combination. The member 441 and the second coupling member 442, but in actual application, the shock absorbing member 443 can be made of an elastic material such as rubber, plastic, etc., and the same effect can be achieved, and should not be the embodiment. The limits of the disclosure.

In addition, it is worth mentioning that, in the preferred embodiment, the first and second coupling members 441 and 442 and the shock absorbing member 443 are made of the same material. Therefore, it can be manufactured by integral molding. Of course, the materials of the first and second coupling members 441 and 442 may be different from the material of the shock absorbing member 443, and then connected after being separately formed, as long as the shock absorption is performed. The member 443 is made of an elastic material to achieve the same effect, and is not limited by the disclosure of the embodiment.

With the above design, the shock absorbing fan 4 of the present invention has the following advantages in actual use:

1. The generated vibration and noise are small: when the shock absorbing fan 4 is in operation, the shock absorbing member 443 made of an elastic material can absorb the vibration caused by the rotation of the housing 41 due to the rotation of the fan wheel 42, which is effective not only effective To alleviate the vibration, it is more able to avoid the noise caused by the shock caused by the vibration.

2. The assembly is convenient: since the first and second coupling members 441 and 442 of the shock absorbing unit 44 are respectively coupled to the edge of the second extending portion 414 of the surrounding wall 412 by the first and second receiving grooves 444 and 445, The first end portion 431 of the outer frame 43 has a top edge, so that the first and second card grooves 444, 445 and the second extending portion 414 end edge and the first end portion 431 can be clearly and accurately aligned during assembly. The relative position between the top edges not only facilitates assembly, but also speeds up assembly.

3. Low production cost: Since the shock absorbing unit 44 is directly coupled to the second extending portion 414 of the surrounding wall 412 and the first end portion 431 of the outer frame 43, the design of the existing housing 41 needs to be changed. It is also unnecessary to add any additional components to the surrounding wall 412 or the outer frame 43, which simplifies the manufacturing process and reduces the production cost.

4. Small in size: continued, since the shock absorbing unit 44 is coupled to the end edge of the second extending portion 414 of the surrounding wall 412 and the first end portion 431 of the outer frame 43 The top edge, instead of being connected between the surrounding wall 412 and the inner and outer circumferences of the outer frame 43, the opposing surrounding wall 412 or the outer periphery of the outer frame 43 is also required to add any member for joining the shock absorbing unit 44. Therefore, the spacing between the surrounding wall 412 and the outer frame 43 can be effectively reduced, so that the overall volume is reduced, space waste is effectively avoided, and installation and use are facilitated.

In summary, the shock absorbing fan 4 of the present invention absorbs the vibration caused by the rotation of the fan wheel 42 by the shock absorbing member 443 made of an elastic material in the shock absorbing unit 44, thereby effectively reducing the vibration. And the first and second coupling members 441 and 442 of the shock absorbing unit 44 are respectively disposed on the bottom edge of the housing 41 and the top edge of the outer frame 43, which is convenient and simple to assemble, and simplifies manufacturing. The process of the present invention can be achieved by reducing the production cost and effectively reducing the overall volume to avoid space waste and also facilitating installation and use.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

4‧‧‧Shocking fan

41‧‧‧Shell

411‧‧‧ base wall

412‧‧‧ wall

413‧‧‧First Extension

414‧‧‧Second extension

42‧‧‧fan wheel

43‧‧‧Front frame

431‧‧‧First end

432‧‧‧second end

44‧‧‧Shocking unit

441‧‧‧ first joint

442‧‧‧Second joint

443‧‧‧ Shock absorbers

444‧‧‧first card ditch

445‧‧‧Second card ditch

1 is a cross-sectional view showing a fan structure disclosed in US Pat. No. 7,819,053, and FIG. 2 is a cross-sectional view showing a first preferred embodiment of the shock absorbing fan of the present invention; and FIG. 3 is a plan view, and FIG.

4. . . Shock absorption fan

41. . . Shell

411. . . Base wall

412. . . Surrounding wall

413. . . First extension

414. . . Second extension

42. . . Fan wheel

43. . . Outer frame

431. . . First end

432. . . Second end

44. . . Shock absorber unit

441. . . First joint

442. . . Second joint

443. . . Shock absorber

444. . . First card groove

445. . . Second card groove

Claims (4)

A shock absorbing fan comprising: a housing having a base wall and a surrounding wall connected to a periphery of the base wall, the surrounding wall having a first extension extending upward from a periphery of the base wall, and a self a second extending portion extending downward from the periphery of the base wall; a fan wheel pivotally disposed on the base wall of the housing; an outer frame spaced around the outer periphery of the housing; and a shock absorbing unit including a setting a first joint member surrounding the second extending end edge of the shell and surrounding the fan wheel, a second joint member disposed on the top edge of the outer frame and surrounding the shell seat, and a plurality of spaced apart connecting portions a coupling member and a shock absorbing member of the second coupling member, wherein the shock absorbing member is made of an elastic material. The shock absorbing fan of claim 1, wherein the outer frame has a first end portion at the top edge and a second end portion opposite to the first end portion, and the second joint member It is disposed on the top edge of the first end. The shock absorbing fan of claim 2, wherein the first coupling member has a first groove that cooperates with an end edge of the second extending portion of the surrounding wall, and the second coupling member has a The top edge of the first end of the outer frame cooperates and faces the second card groove of the first card groove, and the edge of the second extension portion is engaged in the first card groove, and the outer frame is The top edge of one end is locked in the second card groove. The shock absorbing fan according to claim 3, wherein the shock absorbing member is made of an elastic body and has a strip shape to connect the first knot. The fitting and the second coupling member.