TWI395878B - Shock absorber - Google Patents

Description

Shock absorption fan

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

Existing fans are limited by manufacturing precision, assembly error, rotational speed, and load. They are often accompanied by vibration during operation, and in general, the existing fan housing is locked to a computer case or heat sink fin. A mounting structure, therefore, when the fan generates vibration, the housing and the mounting structure may cause noise due to mutual impact, thereby affecting the quality of life.

Referring to Fig. 1, in order to improve the noise generated 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. In combination with the two coupling members 13, the film 3 is attached to the inner periphery of the mounting frame 2 and the outer periphery of the housing 11 to absorb the vibration of the housing 11 to avoid 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 two coupling members 13 are respectively disposed around the The outer peripheral edge of the housing 11 and the inner periphery of the mounting frame 14 are opposite to the opposite side edges of the film 3, and are not easily aligned with the corresponding groove 31 during assembly. The relative position of the member 13 is inconvenient to assemble. Further, it is more time consuming to assemble the two engaging members 31 completely.

2. High maintenance cost: Under the influence of long-term absorption vibration and climatic factors, the film 3 may crack or even be damaged in a small place. At this time, the film 3 must be replaced as a whole to maintain absorption vibration and reduce noise. The effect, therefore replacing the film 3 is undoubtedly an increase in maintenance costs.

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 pivoted in the housing, an outer frame spaced around the outer periphery of the housing, and a shock absorbing unit connecting the housing and the outer frame .

The shock absorbing unit includes a plurality of shock absorbing members detachably connecting the housing and the outer frame, wherein the shock absorbing members are made of an elastic material, and each of the shock absorbing members has an opposite first connecting portion and a a second connecting portion, and a buffer portion protruding between the first connecting portion and the second connecting portion, wherein the first connecting portion is connected to the housing, and the second connecting portion is connected On the outer frame.

The function of the invention is to absorb the vibration caused by the rotation of the fan wheel by the shock absorbing member made of elastic material, thereby effectively reducing the noise generated by the vibration; and the shock absorbing member is individual and Disconnected connection The housing and the outer frame can be assembled and disassembled individually, so that the assembly is convenient and can be replaced individually during maintenance, so that the maintenance cost can be effectively reduced to avoid waste of resources.

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 of the invention.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 2, a first 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 an outer frame 43 spaced around the outer periphery of the housing 41. And a shock absorbing unit 44 connecting the housing 41 and the outer frame 43.

Referring to FIGS. 2 and 3, the housing 41 has a bottom wall 411, a surrounding wall 412 surrounding the periphery of the bottom wall 411, and a plurality of first coupling members 413 disposed on the outer circumference of the surrounding wall 412, wherein The fan wheel 42 is pivotally mounted on the bottom wall 411.

Referring to FIGS. 2 and 4, the outer frame 43 has a frame 431 spaced around the surrounding wall 412 of the housing 41, and a plurality of second coupling members 432 disposed on the frame 431. The frame 431 is configured. There is a bottom surface 433 facing the bottom wall 411, a top surface 434 opposite to the bottom surface 433, and a plurality of mounting portions 435 extending from the top surface 434 toward the bottom surface 433. The second coupling member 432 is disposed. In each mounting portion 435.

Referring to Figures 2, 3 and 4, the shock absorbing unit 44 includes a plurality of detachably connected Each of the shock absorbing members 441 has an opposite first connecting portion 442 and a second connecting portion 443, and a protruding portion is disposed on the housing 41 and the outer frame 43 and is made of an elastic material. A buffer portion 444 (shown only in FIG. 2) between the first connecting portion 442 and the second connecting portion 443.

In the preferred embodiment, the shock absorbing members 441 are all made of an elastic body. Of course, in practical applications, the shock absorbing members 441 can be made of elastic materials such as rubber, plastic, and the like. The same effect is achieved and should not be limited to the disclosure of the embodiment.

The first connecting portion 442 of each of the shock absorbing members 441 is respectively connected to the first connecting member 413 corresponding to the housing 41, and the second connecting portion 443 of each of the shock absorbing members 441 is respectively corresponding to the second connecting portion 443. The coupling members 432 are combined.

In the preferred embodiment, the first and second coupling members 413 and 432 are protrusions, and the first and second connecting portions 442 and 443 of each of the shock absorbing members 441 can be respectively fitted to the corresponding ones. The collar of the first and second coupling members 413, 432.

When the shock absorbing fan 4 is in operation, the shock absorbing member 441 made of an elastic material absorbs the vibration caused by the rotation of the housing 41 due to the rotation of the fan wheel 42, thereby effectively reducing the noise generated by the vibration. When the housing 41 is violently shaken or deflected, the buffer portion 444 can be utilized to effectively absorb the impact force of the housing 41 laterally striking the outer frame 43 to prevent the housing 41 from laterally striking the outer frame 43.

Moreover, when any shock absorbing member 441 is broken or damaged, only the damaged or damaged shock absorbing member 441 needs to be replaced to restore the shock absorbing unit 44 to absorb the The shell seat 41 effectively reduces the noise generated by the vibration due to the vibration caused by the rotation of the fan wheel 42.

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

1. Convenient assembly: since each of the shock absorbing members 441 is combined with the corresponding first and second coupling members 413 and 432, each of the shock absorbing members 441 can individually and detachably connect the housing 41 and the outer portion. The frame 43 is assembled in one position; the first and second connecting portions 442 and 443 matched with the first and second coupling members 413 and 432 can improve the convenience and speed of assembly.

2. Maintenance is convenient and low in cost: continued, since each of the shock absorbing members 441 can individually and detachably connect the housing 41 and the outer frame 43, when the individual shock absorbing members 441 are damaged or broken, only It is necessary to replace the shock absorbing member 441 that has been damaged or broken, and it is not necessary to replace all the shock absorbing members 441, which not only facilitates maintenance but also reduces maintenance costs and avoids waste of resources.

Referring to FIG. 5, the second preferred embodiment of the shock absorbing fan 4 of the present invention is substantially the same as the first preferred embodiment. The difference is that the frame 431 of the outer frame 43 has a surrounding wall 412. The inner peripheral surface 436 is disposed on the inner peripheral surface 436. In the preferred embodiment, the first and second coupling members 413 and 432 are sleeves, and the first and second connecting portions 442 and 443 of each of the shock absorbing members 441 are permeable to the corresponding ones. The protrusions in the first and second coupling members 413 and 432.

Because the overall structure of the embodiment is substantially the same as the first preferred embodiment described above. In the same way, in addition to the efficacies as described in the first preferred embodiment, a different embodiment is also provided for the user to select.

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 441 made of an elastic material, thereby effectively reducing the noise generated by the vibration; Since each of the shock absorbing members 441 can individually and detachably connect the housing 41 and the outer frame 43, when the individual shock absorbing members 441 are damaged or broken, only the damaged or broken ones need to be replaced. The shock absorbing member 441 can be replaced, and all the shock absorbing members 441 need to be replaced, which not only facilitates maintenance but also reduces maintenance costs and avoids waste of resources.

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‧‧‧ bottom wall

412‧‧‧ Around the wall

413‧‧‧First joint

42‧‧‧fan wheel

43‧‧‧Front frame

431‧‧‧ frame

432‧‧‧Second joint

433‧‧‧ bottom

434‧‧‧ top surface

435‧‧‧Installation Department

436‧‧‧ inner circumference

44‧‧‧Shocking unit

441‧‧‧ Shock Absorbing Parts

442‧‧‧First connection

443‧‧‧Second connection

444‧‧‧ buffer

Figure 1 is a cross-sectional view showing the structure of the fan disclosed in U.S. Patent 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; 4 is a plan view, and FIG. 2 is a cross-sectional view showing a second preferred embodiment of the shock absorbing fan of the present invention.

4. . . Shock absorption fan

41. . . Shell

411. . . Bottom wall

412. . . Around the wall

413. . . First joint

42. . . Fan wheel

43. . . Outer frame

431. . . framework

432. . . Second joint

433. . . Bottom

434. . . Top surface

435. . . Installation department

44. . . Shock absorber unit

441. . . Shock absorber

442. . . First connection

443. . . Second connection

444. . . Buffer section

Claims (8)

A shock absorbing fan comprising: a housing; a wheel pivoted in the housing; an outer frame spaced around the outer periphery of the housing; and a shock absorbing unit including a plurality of detachably connecting the housing And the shock absorbing member of the outer frame, wherein the shock absorbing member is made of an elastic material, and each of the shock absorbing members has an opposite first connecting portion and a second connecting portion, and a protruding portion is disposed on the first a buffer portion between the connecting portion and the second connecting portion, wherein the first connecting portion is connected to the housing, and the second connecting portion is connected to the outer frame. The shock absorbing fan according to claim 1, wherein the housing has a bottom wall, a surrounding wall surrounding the periphery of the bottom wall, and a plurality of first engaging members disposed on the outer periphery of the surrounding wall. The first connecting portion of each of the shock absorbing members is respectively combined with each of the first connecting members, and the fan wheel is pivotally disposed on the bottom wall. The shock absorbing fan of claim 2, wherein the outer frame has a frame surrounding the surrounding wall of the housing, and a plurality of second coupling members disposed on the frame, each shock absorbing The second connecting portion of the piece is combined with each of the second engaging members. The shock absorbing fan according to claim 3, wherein the frame of the outer frame has a bottom surface facing the bottom wall, a top surface opposite to the bottom surface, and a plurality of recesses are recessed from the top surface toward the bottom surface. An extended mounting portion, the second coupling member being disposed in each mounting portion. The shock absorbing fan according to claim 3, wherein the frame of the outer frame has an inner circumferential surface facing the surrounding wall, and the second coupling member is disposed on the inner circumferential surface. The shock absorbing fan of claim 4, wherein the first and second coupling members are protrusions, and the first and second connecting portions of each of the shock absorbing members are sleeved to the corresponding first, The collar in the second joint. The shock absorbing fan according to claim 5, wherein the first and second coupling members are collars, and the first and second connecting portions of each shock absorbing member are permeable and coupled to the corresponding first And the two pillars in the joint member. The shock absorbing fan according to claim 1, wherein the shock absorbing member is made of an elastic body.