CN216867093U - Fan casing base capable of damping - Google Patents

Abstract

A fan casing seat capable of damping comprises an outer frame, an inner bearing seat and four supporting ribs. The outer frame comprises four frame corner sections and four frame sections. Two ends of each frame section are respectively connected with two adjacent frame corner sections. Each support rib comprises a base part and a rib part, wherein the base part is connected with the inner bearing seat, the cross section area of the base part is gradually reduced along the direction far away from the inner bearing seat, and the rib part extends outwards from the base part and is connected with one of the frame corner sections. The support ribs are directly connected with the transmission path of the vibration can be reduced by the design of the frame corner sections, and the design of the base seat surrounding the inner bearing seat can ensure that any two adjacent base seats are connected and form a shock-absorbing arc surface facing the outer frame, so that the vibration generated when the fan blades rotate can be effectively absorbed and restrained, and the effect of restraining the vibration without additionally installing other damping components is achieved.

Description

Fan casing base capable of damping

Technical Field

The present invention relates to a housing, and more particularly, to a housing for a heat dissipation fan.

Background

Referring to fig. 1, the heat dissipation fan is often disposed in a computer, an electronic device or a mechanical device, and the fan blades rotate to drive air to flow, thereby achieving a heat dissipation effect. In a general heat dissipation fan, a fan and a motor are mounted on a fan housing 1. A conventional fan case base 1 is shown in fig. 1, and includes an outer frame 11 surrounding an installation space 111, an inner base 12 located in the installation space 111, and four support ribs 13 extending from an outer peripheral surface of the inner base 12 in a tangential direction to connect the outer frame 11. The outer frame 11 includes four frame corner sections 112 arranged at equal angular intervals, and four frame sections 113 arranged alternately with the frame corner sections 112. Two ends of each frame segment 113 are respectively connected with two adjacent frame corner segments 112. Each of the corner segments 112 defines an opening 114 for a screw (not shown) to pass through. Two ends of each support rib 13 are respectively connected to the inner socket 12 and the frame section 113.

Because the support rib 13 is connected to the frame section 113, when the fan blade rotates, the vibration generated by the fan blade is transmitted to the frame section 113 along the support rib 13, and then transmitted to the corner section 112 to be transmitted to the mounting plane through the screws penetrating through the openings 114, because the vibration transmission path is far and almost extends over the whole outer frame 11, the vibration of the fan case base 1 is large, and in addition, there is no other structural design capable of improving the vibration absorption and suppression capability, so that a user needs to additionally install other vibration-absorbing components on the fan case base 1 if wanting to improve the vibration.

Disclosure of Invention

The utility model aims to provide a fan casing base with good damping effect.

The utility model relates to a fan shell seat capable of absorbing shock, which comprises an outer frame surrounding an arrangement space, an inner bearing seat positioned in the arrangement space, and support ribs radially extending outwards from the inner bearing seat, the outer frame comprises four frame angle sections which are arranged at equal angle intervals, and four frame sections which are staggered with the frame angle sections, two ends of each frame section are respectively connected with two adjacent frame angle sections, the supporting ribs are respectively connected with the frame corner sections, each supporting rib comprises a base part which is connected with the inner bearing seat and the sectional area of which is gradually reduced along the direction far away from the inner bearing seat, and a rib part which extends outwards from the base part and is connected with the corresponding frame corner section, the base parts are connected with each other to surround the outer side of the inner bearing seat, so that any two adjacent base parts are connected and form a shock absorption arc surface facing the outer frame.

The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.

Preferably, the fan casing base with shock absorption further comprises a plurality of embedded members embedded in the support ribs.

Preferably, in the aforementioned fan casing base with damping function, any two non-adjacent support ribs are located on the same extension line.

Preferably, the fan casing base with damping function is provided with at least one through hole formed in each corner section of the outer frame, and the rib portion of each support rib points outwards to the at least one through hole of the corresponding corner section.

Preferably, the center axis of the through hole is parallel to the center axis of the inner bearing seat.

Preferably, the inner bearing seat is provided with a threading opening, and one of the supporting ribs is recessed to form a cabling duct extending from the base part to the rib part and communicating with the threading opening.

Preferably, the inner bearing seat comprises a seat body portion, a surrounding wall portion standing at the outer periphery of the seat body portion and connected with the seat portion, and an inner wall portion standing at the center of the seat body portion and surrounded by the surrounding wall portion.

The utility model has the beneficial effects that: the supporting ribs are arranged in an X shape and are directly connected with the frame angle sections, so that vibration can be directly guided to the frame angle sections through which the screws penetrate by the inner bearing seats, and the transmission path of the vibration is reduced to buffer the vibration. In addition, the base seat portion encircles the peripheral face of inner bearing seat for arbitrary two adjacent base seat portions link to each other and form the shake absorbing cambered surface towards outer frame, shake absorbing cambered surface can produce and shake the cushioning effect of inhaling, effectively absorbs the vibrations that produce when restraining the flabellum rotation, thereby reaches and does not need to install other damper spare alright the efficiency of suppressing vibrations.

Drawings

Fig. 1 is a plan view illustrating a general fan case base;

FIG. 2 is a perspective view illustrating an embodiment of a fan case base of the present invention that is capable of absorbing shock;

FIG. 3 is a top view illustrating a top aspect of the embodiment; and

fig. 4 is a bottom view illustrating a bottom aspect of the embodiment.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples.

Referring to fig. 2, 3 and 4, the embodiment of the fan case base with shock absorption of the present invention includes an outer frame 2 surrounding an installation space 20, an inner base 3 located in the installation space 20, four support ribs 4 extending radially outward from the inner base 3 to connect the outer frame 2, and four embedded members 5 embedded in the support ribs 4, respectively. The outer frame 2 includes four frame corner sections 21 arranged at equal angular intervals, and four frame sections 22 arranged alternately with the frame corner sections 21. In the present embodiment, the outer frame 2 is substantially square, and the corner sections 21 are located at four corners of the square, each corner section 21 forms two through holes 211 spaced apart from each other along the thickness direction of the outer frame 2 and having the central axes coincident with each other, and the central axes of the through holes 211 and the central axis of the inner socket 3 are parallel to each other. The through hole 211 can be provided with a screw (not shown) to pass through to fix the fan casing base on the installation plane. Two ends of each frame segment 22 are respectively connected with two adjacent corner segments 21.

The inner bearing 3 includes a seat body 31 which is annular and located at the center of the setting space 20 of the outer frame 2, a surrounding wall 32 which is vertically arranged at the outer periphery of the seat body 31, and an inner wall 33 which is vertically arranged at the center of the seat body 31 and surrounded by the surrounding wall 32. The seat portion 31 is provided with a threading opening 311 extending in the axial direction (i.e., the thickness direction of the outer frame 2). The support ribs 4 are arranged in an X-shape, that is, any two support ribs 4 which are not adjacent to each other are located on the same extension line, and the support ribs 4 are respectively connected to the frame corner sections 21 located at the corners. Each support rib 4 comprises a base portion 41 connected to the surrounding wall portion 32 and having a cross-sectional area tapering in a direction away from the inner socket 3, and a rib portion 42 extending outwardly from the base portion 41 and connected to the corresponding corner section 21. The rib portions 42 are directed outwardly toward the perforations 211 in the corresponding corner section 21. The base portions 41 of the support ribs 4 are connected to each other to surround the outside of the surrounding wall portion 32, so that a concave shock-absorbing arc surface a facing one of the frame sections 22 is formed between any two adjacent base portions 41. In addition, one of the depressions of the support rib 4 forms a wiring groove 43 extending from the base portion 41 to the rib portion 42 and communicating with the wiring opening 311, and when the stator of the cooling fan is disposed on the inner bearing seat 3, the conductive wire connected to the stator can pass through the wiring opening 311 and is pulled outward by the wiring groove 43. Each embedded part 5 may be embedded in the rib part 42 or the base part 41 of the corresponding support rib 4 to enhance the weight and strength of the support rib 4 and achieve the effect of being not easy to vibrate, and of course, the embedded part 5 may extend from the base part 41 to the rib part 42, which is not limited to the above. In this embodiment, the embedded component 5 is made of rubber or other materials with good shock absorption effect.

Because the supporting ribs 4 are directly connected with the frame corner section 21 provided with the through hole 211, the vibration generated to the inner bearing 3 when the fan blade rotates can be directly transmitted to the frame corner section 21 through the supporting ribs 4 and transmitted to the mounting plane through the screws in the through hole 211, and the vibration can be buffered quickly because the transmission path does not pass through the frame section 22 any more. The shock absorbing arc surface a formed by the base portion 41 surrounding the outer side of the inner seat 3 can further generate a shock absorbing buffering effect, and the embedded member 5 can increase the weight of the support rib 4 to reduce the shock absorbing distance, and can also improve the shock absorbing capability by using a shock absorbing material as the embedded member 5.

In summary, the supporting ribs 4 are disposed in a non-tangential X shape, and the base portion 41 surrounds the inner socket 3 to form a plurality of concave shock-absorbing arc surfaces a to enhance the effect of buffering the shock, and no additional shock-absorbing component is required, so that the present invention has higher convenience and shock-absorbing performance, and thus the object of the present invention can be achieved.

Claims (7)

1. A fan case base capable of damping; the method is characterized in that: the fan shell seat comprises an outer frame surrounding a setting space, an inner bearing seat located in the setting space, and support ribs radially extending from the inner bearing seat to the outside, wherein the outer frame comprises four frame corner sections arranged at equal angle intervals, and four frame sections arranged in a staggered mode with the frame corner sections, two adjacent frame corner sections are connected to two ends of each frame section respectively, the support ribs are connected with the frame corner sections respectively, each support rib comprises a base portion connected with the inner bearing seat and the sectional area along the direction away from the inner bearing seat, and a rib portion connected with the base portion and extending outwards and connected with the corresponding frame corner sections, and the base portions are connected with each other to surround the outer side of the inner bearing seat, so that any two adjacent base portions are connected and form a direction towards the shock absorption arc surface of the outer frame.

2. The cushioned fan case base of claim 1, wherein: the fan shell seat also comprises a plurality of embedded parts embedded in the supporting ribs.

3. The cushioned fan case base of claim 1, wherein: any two non-adjacent support ribs are positioned on the same extension line.

4. The shock absorbing fan case base of claim 1, wherein: each frame corner section of the outer frame forms at least one perforation, and the rib portion of each support rib points outward towards the at least one perforation of the corresponding frame corner section.

5. The cushioned fan case base of claim 4, wherein: the central axis of the through hole is parallel to the central axis of the inner bearing seat.

6. The cushioned fan case base of claim 1, wherein: the inner bearing seat is provided with a threading opening, and one of the support ribs is sunken to form a wiring groove which extends from the base part to the rib part and is communicated with the threading opening.

7. The cushioned fan case base of claim 1, wherein: the inner bearing seat comprises a seat body part, a surrounding wall part which is vertically arranged at the outer periphery of the seat body part and is connected with the seat part, and an inner wall part which is vertically arranged at the center of the seat body part and is surrounded by the surrounding wall part.

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