Patent Publication Number: US-2005117325-A1

Title: Desk lamp with function of generating negative ions

Description:
FIELD OF THE INVENTION  
      The present invention is relating to a desk lamp, particularly to a desk lamp with function of generating negative ions.  
     BACKGROUND OF THE INVENTION  
      Conventionally a desk lamp is only with lighting function. It should be improving the air condition surrounding the desk for increasing the reading efficient. A conventional portable negative ion generator had been brought from TW Patent Publication No. 337710. Size of the portable negative ion generator should be as little as possible to carry easily, but, if the portable negative generator is too small, it is easy to lose. Meanwhile, if the portable negative ion generator leaves reader&#39;s head too far, the negative ions would be dilute and its help would be decreased.  
      An electrical light bulb with function of generation negative ions and economizing energy is disclosed in TW Patent Publication No. 423704. The electrical light bulb comprises a contact base connecting with a bulb body. A negative ion generator is installed in the contact base. Because that the life time of the light bulb is regular, the expensive negative ion generator would be abandoned when the light bulb is out of the life time. Also, specifications of the light bulb and conventional bulb are not interchangeable.  
     SUMMARY OF THE INVENTION  
      A primary object of the present invention is to provide a desk lamp with function of generating negative ions. An air outlet plane of a negative ion generator is installed and toward internal wall of a lamp body to improve the atmosphere around the desk lamp for increasing reading efficient and not easy to lose.  
      A second object of the present invention is to provide a desk lamp with function of generating negative ions. An air outlet plane of a negative ion generator is installed and toward internal wall of a lamp body, and a fan is set on a air inlet plane of the negative ion generator, so that negative ions from the negative ion generator is exhausted outside the lamp body.  
      According to the invention, the desk lamp with function of generating negative ions mainly comprises a lamp body and a negative ion generator. The lamp body is consisted of a lamp base, a lamp arm and a lampshade. The negative ion generator has a air outlet plane toward internal wall of the lamp body and is installed at an appropriated position inside the lamp base, the lamp arm or the lampshade, so that negative ions made from the negative ion generator will be exhausted outside the lamp body. Perfectly, an air inlet plane of the negative ion generator is installed with a fan for exhausted the negative ion outside the lamp body easily. 
    
    
     DESCRIPTION OF THE DRAWINGS  
       FIG. 1  is a schematic 3-D view of a desk lamp with function of generating negative ions of a first embodiment of the present invention;  
       FIG. 2  is a schematic side view of a desk lamp with function of generating negative ions of the first embodiment of the present invention;  
       FIG. 3  is a schematic 3-D view of a desk lamp with function of generating negative ions of a second embodiment of the present invention;  
       FIG. 4  is a schematic 3-D view of a desk lamp with function of generating negative ions of a third embodiment of the present invention;  
       FIG. 5  is an exploded perspective view of a desk lamp with function of generating negative ions of a fourth embodiment of the present invention;  
       FIG. 6  is a schematic side view of a desk lamp with function of generating negative ions of the fourth embodiment of the present invention;  
       FIG. 7  is a schematic side view of a desk lamp with function of generating negative ions of a fifth embodiment of the present invention; and  
       FIG. 8  is a schematic side view of a desk lamp with function of generating negative ions of a sixth embodiment of the present invention. 
    
    
     DETAIL DESCRIPTION OF THE INVENTION  
      Referring to the drawings attached, the present invention will be described by means of the embodiment below.  
      According to a first embodiment of the present invention showed in  FIGS. 1 and 2 , a desk lamp with function of generating negative ions main comprises a lamp body  110  and a negative ion generator  120 . The lamp body  110  is consisted of a lamp base  111 , a lamp arm  112  and a lampshade  113 . The lamp base  111  is a base of the desk lamp for placing on the desk. A power switch  130  is set on the lamp base  111  for controlling the light source and the negative ion generator  120 . The lamp arm  112  connects the lamp base  111  with lampshade  113 . The lampshade  113  has connector for installing a lamp tube or a light bulb. The negative ion generator  120  is installed at an appropriated position inside the lamp body  110 . The negative ion generator  120  comprises driving circuits and negative ion discharging electrodes (not show in the drawings). Theory of forming negative ion generator  120  is commonly known and thus not described in detail herein. In this embodiment, the negative ion generator  120  is installed on internal wall of the lamp base  111 . The negative ion generator  120  has an air outlet plane  121  and a air inlet plane  122 , wherein two sides of the air outlet plane  121  forms a plurality of connecting portions  123  for fixing the air outlet plane  121  toward internal wall of the lamp base  111 , so that negative ions from the negative ion generator  120  will be exhausted outside the lamp body  110 . Preferably, the air outlet plane  121  of the negative ion generator  120  is attached on the internal wall of the lamp base  111  for avoiding air turbulence. Therefore, the desk lamp with function of generating negative ions will increase reading efficient of reader at front of the desk lamp.  
      In addition, according to the present invention the negative ion generator could be installed in other position inside a lamp body. Pleases referring  FIG. 3 , a desk lamp with function of generating negative ions according to a second embodiment of the present invention mainly comprises a lamp body  210  and a negative ion generator  220  which structure is as same as the negative ion generator  120  described in the first embodiment. The lamp body  210  is consisted of a lamp base  211 , a lamp arm  212  and a lampshade  213 . A power switch  230  is set on the lamp base  211 . The lampshade  213  is a light source to define a light region. The negative ion generator  220  has an air outlet plane  221  and connecting portions  222  at perimeters of the air outlet plane  221 . The negative ion generator  220  is installed on internal wall inside the lamp arm  212  by the connecting portions  222 , and the air outlet plane  221  is toward the light region of the desk lamp to improve the atmosphere for increasing reading efficient.  
      Referring  FIG. 4 , a desk lamp with function of generating negative ions according to a third embodiment of the present invention main comprises a lamp body  310  and a negative ion generator  320 . Structures of a lamp base  311 , a lamp arm  312 , a lampshade  313  and a power switch  330  are as same as the lamp base  111 , the lamp arm  112 , the lamp shade  113  and the power switch  130  in the first embodiment, and thus not described in detail herein. The lame shade  313  has a plurality of air outlet holes  314 . The negative ion generator  320  is installed in an internal wall inside the lamp shade  313  and has a air outlet plane  321  corresponding to the air outlet holes  314 . Two sides of the air outlet plane  121  forms connecting portions  322  to connect to the lampshade  313 .  
      Referring  FIGS. 5 and 6 , a desk lamp with function of generating negative ions according to a fourth embodiment of the present invention comprises a lamp body  410  and a negative ion generator  420 , which structures are similar to the lamp body  110  and a negative ion generator  120  in the first embodiment. The desk lamp with function of generating negative ions further comprises a fan  430  which is like a D/C brushless fan or a common micro fan. The lamp body  410  is consisted of a lamp base  411 , a lamp arm  412  and a lampshade  413 . The lamp base  411  has a plurality of air outlet holes  414  and sets a power switch  440 . A plate  415  with a plurality of air outlet holes  416  is setting at bottom of the lamp base  411 . The negative ion generator  420  and the fan  430  are installed inside the lamp base  411 . In this embodiment, an air outlet plane  421  of the negative ion generator  420  is corresponding to the air outlet holes  414  of an internal wall of the lamp base  411  toward light region defined by the lamp shade  413 . And an air inlet plane  422  of the negative ion generator  420  is corresponding to a wind outlet  431  of the fan  430 . The fan  430  has a plurality of connecting portions  432  and installed on internal wall of the lamp base  411  through the negative ion generator  420  by a plurality of bolts  433  or other fixing elements. The negative ion generator  420  has a plurality of connection portions  423  and installed on the internal wall of the lamp base  411  by the bolts  433  or fixing elements. When the fan  430  is operating, the negative ions from the negative ion generator  420  will be exhausted outside the lamp base  411  toward the light region easily.  
      Referring  FIG. 7 , a desk lamp with function of generating negative ions of a fifth embodiment of the present invention comprises a lamp body  510  and a negative ion generator  520  which structures are similar to the lamp body  210  and a negative ion generator  220  in the second embodiment, wherein the negative ion generator  520  is installed in a lamp arm  512  of the lamp body  510 . The desk lamp with function of generating negative ions further comprises a fan  530  with a wind outlet  531  which is corresponding to an air inlet plane  522  of the negative ion generator  520 . Preferably, the negative ion generator  520  and the fan  530  are combined together to be a module for installing inside the lamp arm  512  easily. The lamp arm  512  connects the lamp base  511  with lampshade  513 , and has a plurality of air inlet holes  515  and a plurality of air outlet holes  514 . The air outlet holes  514  are corresponding to an air outlet plane  521  of the negative ion generator  520 . The negative ion generator  520  has a plurality of connecting portions  523  for be fixed on internal wall of the lamp arm  512 . The negative ion generator  520  can be opened or closed droved by a power switch  540  set on the lamp base  511 . When the fan  530  is operating, the negative ions from the negative ion generator  520  will be exhausted outside the lamp arm  512  smoothly.  
      Referring  FIG. 8 , a sixth embodiment is almost the same as the third embodiment of the present invention, comprising a negative ion generator  620  and a lamp body  610  which is consisted of a lamp base  611 , a lamp arm  612  and a lampshade  613  as same as the negative ion generator  320  and the lamp body  310  in the third embodiment. But the sixth embodiment of the present invention further discloses an independent fan  630 . The negative ion generator  620  and the independent fan  630  are installed inside the lampshade  613  but not combined together. The lampshade has a plurality of air outlet holes  614  and a plurality of air inlet holes  615 . When the fan  630  is operating, air outside the lampshade  613  will be suck in the lamp shade  613  by passing through the air inlet holes  615  and the negative ions from the negative ion generator  520  will be exhausted outside the lampshade  613  through the air outlet holes  614 . The generated negative ions are close to reader by passing through the air outlet holes  614  for increasing reading efficiency.  
      The above description of embodiments of this invention is intended to be illustrated and not limiting. Other embodiments of this invention will be obvious to those skilled in the art in view of the above disclosure.