Patent Publication Number: US-8987732-B2

Title: Ceramic semiconductor capable of increasing the density of surrounding superoxide ions after being heated

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a ceramic semiconductor, and more particularly to the ceramic semiconductor capable of increasing the density of surrounding superoxide ions after being heated. An oxide material capable of enhancing a space charge effect is doped when the ceramic semiconductor is formed. The ceramic semiconductor has a plurality of through holes, such that after the ceramic semiconductor is electrically conducted to generate current and heat, outer shell electrons of the ceramic semiconductor are separated and remained in the through holes of the ceramic semiconductor and accumulated in the through holes to form an electron cloud. After air passes through the through holes, oxygen in the air collides with an electron and then they combine together to form a superoxide ion (O 2   − ), so as to increase the density of surrounding superoxide ions (O 2   − ). Therefore, the superoxide ion has a very high chemical activity and features the sterilization, cell activation and wound healing functions. 
     2. Description of the Related Art 
     The air we breath contains 21% oxygen by volume, and the oxygen exists in a free state of O 2 ( ) molecules. The O 2 ( ) molecule is formed by two oxygen atoms sharing a pair of electrons, and one of the oxygen atoms has an unpaired electron and thus features a high affinity of electrons. The O 2  atom collides with an electron (e) and then they combine together to produce O 2 +e→O 2   −  or O 2 +e→O+O −  (superoxide ion). The energy required for the deionization/ionization of the superoxide ion is 1.62˜22.9 electron volts (ev), so that the superoxide ion has a very high chemical activity and features the sterilization, cell activation and wound healing functions. In addition to R.O.C. Pat. No. I337507 entitled “PTC heat generator structure”, U.S. Pat. No. 7,880,581B2 entitled “PTC thermistor” and PRC Pat. No. CN ZL200810167013.2 entitled “PTC heat generator assembly” granted to the inventor of the present invention, the inventor of the present invention further based on the aforementioned effects of the superoxide ion and make use of the feature of generating heat from the PTC heat generator (which is a ceramic semiconductor) after being electrically conducted to develop the ceramic semiconductor capable of not only generating heat, but also producing superoxide ions. 
     SUMMARY OF THE INVENTION 
     Therefore, it is a primary objective of the present invention to provide a ceramic semiconductor capable of increasing the density of surrounding superoxide ions. 
     To achieve the aforementioned objective, the present invention provides a ceramic semiconductor capable of increasing the density of surrounding superoxide ions, wherein an oxide material capable of enhancing a space charge effect is doped when the ceramic semiconductor is formed, and the ceramic semiconductor has a plurality of through holes, such that after the ceramic semiconductor is electrically conducted to generate current and heat, outer shell electrons of the ceramic semiconductor are separated and remained in the through holes of the ceramic semiconductor and accumulated in the through holes to form an electron cloud. After air passes through the through holes; oxygen in the air collides with an electron and then they combine together to form a superoxide ion, so as to increase the density of surrounding superoxide ions. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view of a ceramic semiconductor of a preferred embodiment of the present invention; 
         FIG. 2  is a perspective view of a plurality of ceramic semiconductors of a preferred embodiment of the present invention; and 
         FIG. 3  is a schematic view of an application of a preferred embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     The technical characteristics, contents, advantages and effects of the present invention will be apparent with the detailed description of a preferred embodiment accompanied with related drawings as follows. 
     In  FIGS. 1 and 2 , an oxide material such as titanium dioxide (TiO 2 ), zinc oxide (ZnO), tungsten trioxide (WO 3 ), ferric oxide (Fe 2 O 3 ), strontium titanate (SrTiO 3 ) capable of enhancing space charge effect is doped when the ceramic semiconductor  10  is formed, and the oxide material can move electrons of the outermost shell easily. The ceramic semiconductor  10  has a plurality of through holes  11 , and each through hole  11  has a diameter Φ preferably 1 mm˜2 mm. 
     After the ceramic semiconductor  10  is electrically conducted and the oxide material capable of enhancing the space charge effect receives the current and heat, electrons are separated and remained in the through holes  11 , and a dense electronic cloud is formed until electrons are accumulated to a certain number. In  FIG. 3 , a fan  20  installed outside the ceramic semiconductor  10  blows air to the ceramic semiconductor  10 , and after the air passes through the through hole  11 , oxygen in the air (O 2 ) may collide with the electrons separated from the ceramic semiconductor  10 , and then the oxygen may combine with the electron so as to form a superoxide ion, such that after the ceramic semiconductor  10  is electrically conducted, heat is generated, and superoxide ions (O 2 +e→O 2   −  or O 2 +e→O+O − ) are discharged. After the ceramic semiconductor  10  is electrically conducted, the superoxide ions are discharged. Since the superoxide ion has a high chemical activity and features the sterilization, cell activation and wound healing functions, therefore the ceramic semiconductor  10  after being electrically conducted also has the functions of sterilization, cell activation and wound healing. 
     In addition, the present invention further comprises a fan  20  with a driving mechanism for driving the ceramic semiconductor  10  to move, so as to achieve the effect of passing air through the through hole  11  quickly. As a result, oxygen in the air (O 2 ) may collide with electrons (e) and then combine with each other to discharge superoxide ions continuously and quickly. 
     In summation of the description above, the present invention complies with the patent application requirements, and thus is duly filed for patent application. While the invention has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the invention set forth in the claims.