US20080124224A1

US20080124224A1 - Shock Mitigation Suspension Structure

Info

Publication number: US20080124224A1
Application number: US11/563,205
Authority: US
Inventors: Daniel Tsai
Original assignee: Rhine Electronic Co Ltd
Current assignee: Rhine Electronic Co Ltd
Priority date: 2006-11-26
Filing date: 2006-11-26
Publication date: 2008-05-29

Abstract

A shock mitigation suspension structure of a ceiling fan, with the structure, vibrations and noise may be reduced. The shock mitigation suspension structure is used for hanging a ceiling fan on a ceiling, the ceiling fan has a pole; the shock mitigation suspension structure substantially includes a fixing frame, a bowl-shaped underprop, a fixing plate and a shock damping unit; wherein the shock damping unit is disposed in the bowl-shaped underprop and the pole goes through the shock damping unit; the fixing plate is positioned at one end of the pole going through the shock damping unit, and the fixing plate presses and resists a top surface of the shock damping unit. With the configuration, vibrations produced in rotation of the ceiling fan are transferred to the shock damping unit via the fixing plate, and the shock damping unit absorbs the vibrations. Thus noise produced from the vibrations may be reduced and life of the ceiling fan may be longer.

Description

BACKGROUND

The invention relates to a technique for holding a ceiling fan, more particularly, to a shock mitigation suspension structure of a ceiling fan, with the structure, shock may be mitigated and noise may decrease.
A ceiling fan is usually hung on a ceiling and drived by a motor. When the ceiling fan works, air may be guided from upside of the ceiling fan to underside of the ceiling fan, which makes air within a room circulate continuously, so as to dispel cool air congregating near the ceiling and hot air congregating near the ground. When the ceiling fan cooperates with air-conditioner to cool room temperature, less energy may be consumed. Additionally, some ceiling fan having elegant shapes may be as a decoration in the room.
Usually, a ceiling fan is fixed on a suspension structure through a pole and with less pivots to a ceiling, so when the fan blades of the ceiling fan rotate at a high speed, the ceiling fan may vibrate constantly, then the tremor may be transferred to the suspension structure through the pole and produce vibration noise, finally the vibration noise may affect the living quality of a user; and constant vibration of the ceiling fan may affect the life of the ceiling fan, so how to reduce the vibration of a working ceiling fan is an issue for the manufacturers.
The inventor has been investigating the problem diligently and thoroughly, combining research and manufacture experience in the field, the inventor invents a shock mitigation suspension structure of a ceiling fan to solve the problem, the structure may obstruct effectively the way transferring the vibration to reduce vibration and noise.

BRIEF SUMMARY

The invention provides a shock mitigation suspension structure of a ceiling fan, with which, noise producing in operation of the ceiling fan may be reduced and the life of parts of the ceiling fan may be extended.
So, the invention provides a technique to achieve various objects and efficiency. According to the invention, a shock mitigation suspension structure is used for hanging a ceiling fan on a ceiling and the ceiling fan has a pole. The shock mitigation suspension structure substantially includes a fixing frame, a bowl-shaped underprop, a fixing plate and a shock damping unit. The fixing frame is fixed with the ceiling, and the bowl-shaped underprop is housed in the fixing frame, and a bottom surface of the bowl-shaped underprop has a through-hole going through the bowl-shaped underprop; the fixing plate is fixing at one end of the pole, and the pole extends into the bowl-shaped underprop; the shock damping unit is disposed between an inside edge of the bowl-shaped underprop and a bottom edge of the fixing plate, and the shock damping unit can reduce vibration.
With the technique shown in the above, the vibrations produced in the operation of the ceiling fan may be transferred from the fixing plate to the shock damping unit, and the shock damping unit obstructs and absorbs the vibrations, thus noise produced in the vibrations is effectively reduced and the life of the ceiling fan is extended. A ceiling fan with the above-mentioned characters may have additional value, which may make the ceiling fan be competitive, popular and salable.
The foregoing and other features and advantages of the present invention will be more clearly understood through the following descriptions with reference to the drawings, wherein:

BRIEF DESCRIPTION OF THE DRAWINGS

These and other features and advantages of the various embodiments disclosed herein will be better understood with respect to the following description and drawings, in which like numbers refer to like parts throughout, and in which:

FIG. 1 is a schematic view of a shock mitigation suspension structure of a ceiling fan according to the invention;

FIG. 2 is a schematic exploded view of the shock mitigation suspension structure shown in FIG. 1, which shows members of the shock mitigation suspension structure and interrelations of the members;

FIG. 3 is a schematic cross-section view of the shock mitigation suspension structure, which shows internal state of the members making up of the shock mitigation suspension structure;

FIG. 4 is a schematic cross-section view of a shock mitigation suspension structure according to another embodiment of the invention;

FIG. 5 is a schematic cross-section view of a shock mitigation suspension structure according to further another embodiment of the invention;

FIG. 6 is a schematic cross-section view of a shock mitigation suspension structure of still further another embodiment of the invention;

FIG. 7 is a schematic exploded view of structure shown in FIGS. 4 and 5.

DETAILED DESCRIPTION

The invention relates to a shock mitigation suspension structure of a ceiling fan for reducing vibrations. Referring to FIG. 1, the shock mitigation suspension structure 20 of the invention is used for hanging a ceiling fan 10 on a ceiling by a pole 15 disposed on the ceiling fan 10; the shock mitigation suspension structure 20 substantially includes a fixing frame 30, a bowl-shaped underprop 40, a fixing plate 50 and a shock damping unit 60. With the shock damping unit 60, vibrations transferred through the pole 15 may be obstructed. FIGS. 3, 4 and 5 shows one preferred embodiment of the invention. The fixing frame 30 of the shock mitigation suspension structure 20 is U-shaped and used for fixed on the ceiling. A below inside edge of the fixing frame 30 is formed as an arc supporting surface 31 going through the fixing frame 30. The arc supporting surface 31 has a cut 32 for the pole 15 of the ceiling fan 10 passing through. The bowl-shaped undedrop 40 is arranged in the fixing frame 30 and an outside edge of the bowl-shaped underdrop 40 is formed as an arc surface 41 matching with the arc supporting surface 31. When the bowl-shaped underdrop 40 is accommodated in the fixing frame 30, the arc supporting surface 31 and the arc surface 41 matches with each other and the bowl-shaped underdrop 40 is positioned automatically. A bottom surface of the bowl-shaped underdrop 40 is formed as a through-hole 42 going through therein for receiving the pole 15 inside. Near top end of the pole 15, a pole-shaped bolt 16 is formed flatly. An inside edge of the through-hole 42 of the bowl-shaped underdrop 40 has an annular groove 420 and a soft pad 43 is disposed for nesting the annular groove 420 to prevent the vibrations of the pole 15 from being transferred to the bowl-shaped underdrop 40. Inside the bowl-shaped underdrop 40, a housing groove 45 with a larger diameter is formed above the through-hole 42, and the housing groove 45 is used for housing the shock damping unit 60. The top inside edge of the bowl-shaped underdrop 40 has two opposite embedded grooves 46 and a pad 47 is disposed in the embedded groove 46 for housing and resisting the pole-shaped bolt 16 of the pole 15, (as shown in FIG. 3) to position the pole-shaped bolt 16. The pad 47 is selected from material of rubber and foam. A screw 48 is formed in the top surface of the bowl-shaped underdrop 40 and adjacent to the embedded groove 46. The screw 48 has a stopping member 49 for locking therein. The stopping member 49 has a bigger end and the end of the stopping member 49 may be used for stopping or positioning the pole-shaped bolt 16.
The fixing plate 50 is disposed on the top end of the pole 15 and under the pole-shaped bolt 16. The ceiling fan 10 and the pole 15 are fixed with each other and the pole 15 is positioned in the bowl-shaped underdrop 40 through the pole-shaped bolt 16 and the fixing plate 50. The shock damping unit 60 is arranged between the inside edge of the housing groove 45 of the bowl-shaped underdrop 40 and the bottom edge of the fixing plate 50. The shock damping unit 60 has a character of absorbing vibrations and may be formed in rubber, foam 61 (as shown in FIG. 3), airbag 62 (as shown in FIGS. 4 and 7), liquid bag 63 (as shown in FIGS. 5 and 7), or the group of the mentioned materials (such as a superposition of the foam 61 and the airbag 62) (as shown in FIG. 6). The shock damping unit 60 can obstruct vibrations transferred from the pole 15 effectively. Additionally, the rubber or foam 61 forming the shock damping unit 60 may be designed in wave shape to reduce contacting area with the other members and absorb vibrations much more.
Thus, a shock mitigation suspension structure is shown, which can obstruct and absorb vibrations and reduce noise.
Referred to FIGS. 1, 3, 4, 5 and 6, when the ceiling fan 10 works, the iron blades of the ceiling fan 10 force airflow to flow and produce vibrations, and the vibrations may be transferred up to the shock mitigation suspension structure 20 via the pole 15. Since the pole 15 goes into the bowl-shaped underdrop 40 and the soft pad 43 obstructs in annular edge of the through-hole 42, thus the vibrations may be prevented from being transferred to the bowl-shaped underdrop 40 through the pole 15. Furthermore, the pole 15 is embedded and pressed in the embedded groove 46, and the shock damping unit 60 is pressed and resist the pad 47 and the fixing plate 50 in the bowl-shaped underdrop 40. The shock damping unit 60 and the pad 47 can absorb vibrations, so the vibrations can be obstructed and absorbed by the shock damping unit 60, and the noise can be reduced. Additionally, other members making up of the ceiling fan 10 may endure longer and have a longer life.
Thus, it can be understood that the invention is a great originality and has many improved functions and usages. In the technology field, no same or similar product has been invented or used in public. Additionally, the invention has many improved efficacy, so the invention accords with the requests of novelty and non-obviousness and should be granted a patent.
The above description is given by way of example, and not limitation. Given the above disclosure, one skilled in the art could devise variations that are within the scope and spirit of the invention disclosed herein, including configurations ways of the recessed portions and materials and/or designs of the attaching structures. Further, the various features of the embodiments disclosed herein can be used alone, or in varying combinations with each other and are not intended to be limited to the specific combination described herein. Thus, the scope of the claims is not to be limited by the illustrated embodiments.

Claims

1. A shock mitigation suspension structure used for hanging a ceiling fan on a ceiling comprising: a fixing frame, a bowl-shaped underprop, a fixing plate, and a shock damping unit;

wherein the fixing frame is fixed with the ceiling, and the bowl-shaped underprop is housed in the fixing frame, and a bottom surface of the bowl-shaped underprop has a through-hole going through the bowl-shaped underprop;

the fixing plate is fixing at one end of the pole, and the pole extends into the bowl-shaped underprop; the shock damping unit is disposed between an inside edge of the bowl-shaped underprop and a bottom edge of the fixing plate, and the shock damping unit can reduce vibration.

2. The shock mitigation suspension structure according to claim 1, wherein a below inside edge of the fixing frame is formed as an arc supporting surface going through the fixing frame and the arc supporting surface has a cut for the pole of the ceiling fan passing through.

3. The shock mitigation suspension structure according to claim 1, wherein a below inside edge of the fixing frame is formed as an arc supporting surface and an outside edge of the bowl-shaped underdrop is formed as an arc surface matching with the arc supporting surface, when the bowl-shaped underdrop is accommodated in the fixing frame, the arc supporting surface and the arc surface matches with each other and the bowl-shaped underdrop is positioned automatically.

4. The shock mitigation suspension structure according to claim 1, wherein an inside edge of the through-hole of the bowl-shaped underdrop has an annular groove and a soft pad is disposed for nesting the annular groove to prevent the vibrations of the pole from being transferred to the bowl-shaped underdrop.

5. The shock mitigation suspension structure according to claim 1, wherein the shock damping unit is selected from material of rubber, foam, airbag and liquid bag.

6. The shock mitigation suspension structure according to claim 1, wherein the shock damping unit is designed in wave shape to reduce contacting area with the other members and absorb vibrations much more.

7. The shock mitigation suspension structure according to claim 1, wherein, a pole-shaped bolt is formed flatly near top end of the pole, top inside edge of the bowl-shaped underdrop has two opposite embedded grooves and a pad is disposed in the embedded groove for housing and resisting the pole-shaped bolt of the pole, to position the pole-shaped bolt and absorb vibrations.

8. The shock mitigation suspension structure according to claim 7, wherein a stopping member is disposed in the bowl-shaped underdrop and near the embed groove, for stopping or positioning the pole-shaped bolt.

9. The shock mitigation suspension structure according to claim 7, wherein the pad is selected from material of rubber and foam.