Patent Publication Number: US-9404510-B2

Title: Fan vibration absorption structure

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates generally to a fan vibration absorption structure, and more particularly to a fan vibration absorption structure, which is able to provide a much better vibration absorption effect and facilitate the assembling process of the fan. 
     2. Description of the Related Art 
     Along with the continuous advance of sciences and technologies, the reliance of peoples on various electronic apparatuses has more and more increased. In operation, the internal components of the electronic products (such as computers and laptops) will generate high heat. The heat must be dissipated to outer side of the electronic products in time. Otherwise, the problem of overheating will take place. Therefore, most of the electronic products are provided with fans disposed therein for keeping the electronic products working at an operation temperature within a range. 
     Currently, the conventional fan is generally installed on the case of the computer by means of screws. In operation, the fan will vibrate. At this time, the case of the computer will vibrate along with the fan. As a result, the case of the computer will make noise due to resonance. In some more serious cases, the vibration of the case will interfere with the normal work of the electronic components in the case. The existent fan vibration absorption structure has numerous assembling members, which are hard to manufacture. Moreover, the assembling members for fixing the fan on the case are made of such a material that the vibration of the fan can be hardly prevented from being transmitted to the case. 
     According to the above, the conventional technique has the following shortcomings:
     1. The vibration absorption effect is poor.   2. It is hard to assemble the components.   

     SUMMARY OF THE INVENTION 
     It is therefore a primary object of the present invention to provide a fan vibration absorption structure, which is able to provide a much better vibration absorption effect. 
     It is a further object of the present invention to provide the above fan vibration absorption structure, which is able to facilitate the assembling process of the fan. 
     To achieve the above and other objects, the fan vibration absorption structure of the present invention is applied to a fan set having a first side and a second side opposite to the first side. The first side has multiple first fixing holes, while the second side has multiple second fixing holes. The fan vibration absorption structure includes a housing, a first frame body, multiple first assembling members and multiple second assembling members. The housing has a bottom board and two sidewalls disposed on two opposite sides of the bottom board. The bottom board and the sidewalls together define a receiving space for receiving the fan set. The first frame body is disposed on the first side of the fan set without contacting the first side. A first gap is defined between the first frame body and the first side. The first frame body has multiple first through holes corresponding to the first fixing holes. The first frame body further has multiple first locating sections protruding from the first frame body in a direction away from the first side of the fan set. The first locating sections correspond to the housing without contacting the housing. Each first locating section has a first perforation. A second gap is defined between the first locating section and the housing. The first and second gaps communicate with the receiving space. The first assembling members are passed through the first through holes and the first fixing holes. Each first assembling member has a first engagement section clamped between the first frame body and the first side to form the first gap. The second assembling members are disposed on inner side of the housing. Each second assembling member has a second engagement section clamped between the first locating section and the housing to form the second gap. 
     According to the above fan vibration absorption structure, the first engagement section is clamped between the first frame body and the first side to form the first gap. Also, the second engagement section is clamped between the first locating section and the housing to form the second gap. Therefore, the first frame body is not in contact with the first side of the fan set and the first locating sections are not in contact with the housing. Accordingly, the vibration of the fan set is prevented from being transmitted to the housing. Therefore, the vibration absorption effect is greatly enhanced and the assembling process is facilitated 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawings, wherein: 
         FIG. 1A  is a perspective exploded view of a first embodiment of the fan vibration absorption structure of the present invention; 
         FIG. 1B  is a perspective assembled view of the first embodiment of the fan vibration absorption structure of the present invention; 
         FIG. 2A  is a perspective assembled view of the first embodiment of the fan vibration absorption structure of the present invention; 
         FIG. 2B  is an enlarged view of circled area  2 B of  FIG. 2A ; 
         FIG. 2C  is an enlarged view of circled area  2 C of  FIG. 2A ; 
         FIG. 3A  is a plane assembled view of the first embodiment of the fan vibration absorption structure of the present invention; 
         FIG. 3B  is an enlarged view of circled area  3 B of  FIG. 3A ; 
         FIG. 3C  is an enlarged view of circled area  3 C of  FIG. 3A ; 
         FIG. 4A  is a perspective exploded view of a second embodiment of the fan vibration absorption structure of the present invention; 
         FIG. 4B  is a perspective assembled view of the second embodiment of the fan vibration absorption structure of the present invention; 
         FIG. 5A  is a perspective exploded view of a third embodiment of the fan vibration absorption structure of the present invention; and 
         FIG. 5B  is a perspective assembled view of the third embodiment of the fan vibration absorption structure of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Please refer to  FIGS. 1A and 1B .  FIG. 1A  is a perspective exploded view of a first embodiment of the fan vibration absorption structure of the present invention.  FIG. 1B  is a perspective assembled view of the first embodiment of the fan vibration absorption structure of the present invention. According to the first embodiment, the fan vibration absorption structure of the present invention is applied to a fan set  1  having a first side  10  and a second side  11  opposite to the first side  10 . The first side  10  has multiple first fixing holes  101 , while the second side  11  has multiple second fixing holes  111 . The fan vibration absorption structure includes a housing  2 , a first frame body  3 , multiple first assembling members  5  and multiple second assembling members  6 . The housing  2  has a bottom board  20  and two sidewalls  21  disposed on two opposite sides of the bottom board  20 . The bottom board  20  and the sidewalls  21  together define a receiving space  222  for receiving the fan set  1 . The first and second assembling members  5 ,  6  are made of thermoplastic elastomer material. 
     Please now refer to  FIGS. 2A, 2B, 3A and 3B .  FIG. 2A  is a perspective assembled view of the first embodiment of the fan vibration absorption structure of the present invention.  FIG. 2B  is an enlarged view of circled area  2 B of  FIG. 2A .  FIG. 3A  is a plane assembled view of the first embodiment of the fan vibration absorption structure of the present invention.  FIG. 3B  is an enlarged view of circled area  3 B of  FIG. 3A . The first frame body  3  is disposed on the first side  10  of the fan set  1  without contacting the first side  10 . A first gap  30  is defined between the first frame body  3  and the first side  10 . The first frame body  3  has multiple first through holes  31  corresponding to the first fixing holes  101 . The first frame body  3  further has multiple first locating sections  32  protruding from the first frame body  3  in a direction away from the first side  10  of the fan set  1 . The first locating sections  32  correspond to the housing  2  without contacting the housing  2 . Each first locating section  32  has a first perforation  324 . A second gap  33  is defined between the first locating section  32  and the housing  2 . The first and second gaps  30 ,  33  communicate with the receiving space  222 . 
     The first assembling member  5  is passed through the first through hole  31  and the first fixing hole  101 . The first assembling member  5  has a first engagement section  50  clamped between the first frame body  3  and the first side  10  to form the first gap  30 . 
     The second assembling members  6  are disposed on inner side of the housing  2 . Each second assembling member  6  has a second engagement section  60  clamped between the first locating section  32  and the housing  2  to form the second gap  33 . 
     Please further refer to  FIGS. 2C and 3C . The fan vibration absorption structure of the present invention further includes a second frame body  4 . The first and second frame bodies  3 ,  4  are made of metal material. The second frame body  4  is disposed on the second side  11  of the fan set  1  without contacting the second side  11 . A third gap  40  is defined between the second frame body  4  and the second side  11  of the fan set  1 . 
     The second frame body  4  has multiple second through holes  41  corresponding to the second fixing holes  111 . The second frame body  4  further has multiple second locating sections  42  protruding from the second frame body  4  in a direction away from the second side  11  of the fan set  1 . The second locating sections  42  correspond to the housing  2  without contacting the housing  2 . Each second locating section  42  has a third perforation  424 . A fourth gap  43  is defined between the second locating section  42  and the housing  2 . The third and fourth gaps  40 ,  43  communicate with the receiving space  222 . 
     The first assembling member  5  is passed through the second through hole  41  and the second fixing hole  111 . The first engagement section  50  is clamped between the second frame body  4  and the second side  11  to form the third gap  40 . 
     The second engagement section  60  of the second assembling member  6  is clamped between the second locating section  42  and the housing  2  to form the fourth gap  43 . 
     Please further refer to  FIGS. 1A and 1B . At least one raised section  22  is disposed on the inner side of the housing  2 . The raised section  22  is correspondingly positioned in the second gap  33  and the fourth gap  43 . The second assembling member  6  is assembled with the raised section  22 . The raised section  22  is formed with a locating hole  221 . The second assembling member  6  is passed through the locating hole  221 , the second and fourth gaps  33 ,  43  and the first and third perforations  324 ,  423 . 
     According to the above fan vibration absorption structure, the first assembling member  5  is passed through the first through hole  31  and the first fixing hole  101 . The first engagement section  50  of the first assembling member  5  is clamped between the first frame body  3  and the first side  10  to form the first gap  30 . Also, the first assembling member  5  is passed through the second through hole  41  and the second fixing hole  111 . The first engagement section  50  is clamped between the second frame body  4  and the second side  11  to form the third gap  40 . Cooperatively, the second engagement section  60  is clamped between the first locating section  32  and the housing  2  to form the second gap  33  and the second engagement section  60  is clamped between the second locating section  42  and the housing  2  to form the fourth gap  43 . The first and second frame bodies  3 ,  4  are not in contact with the first and second sides  10 ,  11  of the fan set and the first and second locating sections  32 ,  42  are not in contact with the housing  2  to form the first, second, third and fourth gaps  30 ,  33 ,  40 ,  43 . Accordingly, the vibration of the fan set  1  is prevented from being transmitted to the housing  2 . Therefore, the vibration absorption effect is greatly enhanced and the assembling process is facilitated. 
     Please now refer to  FIGS. 4A and 4B .  FIG. 4A  is a perspective exploded view of a second embodiment of the fan vibration absorption structure of the present invention.  FIG. 4B  is a perspective assembled view of the second embodiment of the fan vibration absorption structure of the present invention. Also referring to  FIG. 1A , the second embodiment is partially identical to the first embodiment in component and connection relationship between the components and thus will not be repeatedly described hereinafter. The second embodiment is mainly different from the first embodiment in that the first locating section  32  is bent to form a first locating segment  321  and a second locating segment  322 . The second locating section  42  is bent to form a third locating segment  421  and a fourth locating segment  422 . The first and third locating segments  321 ,  421  are adjacent to the inner side of the housing  2 . The second engagement section  60  is clamped between the second and fourth locating segments  322 ,  422  and the housing  2  to form the second and fourth gaps  33 ,  43 . 
     A first bent segment  323  further extends from the second locating segment  322  in a direction to the frame body. The second locating segment  322  is connected with the first bent segment  323  to form a U-shaped configuration. The first bent segment  323  is formed with a second perforation  325  corresponding to the first perforation  324 . The second assembling member  6  is passed through the first and second perforations  324 ,  325 . 
     A second bent segment  423  further extends from the third locating segment  421  in a direction to the frame body. The fourth locating segment  422  is connected with the second bent segment  423  to form a U-shaped configuration. The second bent segment  423  is formed with a fourth perforation  425  corresponding to the third perforation  424 . The second assembling member  6  is passed through the third and fourth perforations  424 ,  425 . 
     By means of the above arrangement, the first and second frame bodies  3 ,  4  and the housing  2  can be more securely connected with each other. In addition, the vibration absorption effect is enhanced and the assembling process is facilitated. 
     Please now refer to  FIGS. 5A and 5B .  FIG. 5A  is a perspective exploded view of a third embodiment of the fan vibration absorption structure of the present invention.  FIG. 5B  is a perspective assembled view of the third embodiment of the fan vibration absorption structure of the present invention. The third embodiment is partially identical to the first embodiment in component and connection relationship between the components and thus will not be repeatedly described hereinafter. The third embodiment is mainly different from the first embodiment in that the first locating sections  32  of the first frame body  3  are asymmetrically arranged without contacting the housing  2  and the second locating sections  42  of the second frame body  4  are asymmetrically arranged without contacting the housing  2 . By means of the above arrangement, the vibration absorption effect is also enhanced and the assembling process is facilitated. 
     In conclusion, in comparison with the conventional technique, the present invention has the following advantages:
     1. Better vibration absorption effect is achieved.   2. The assembling process is facilitated.   

     The present invention has been described with the above embodiments thereof and it is understood that many changes and modifications in the above embodiments can be carried out without departing from the scope and the spirit of the invention that is intended to be limited only by the appended claims.