Abstract:
An air purifier comprises a main frame, a discharging device, a dust collection device and a voltage generator. The discharging device has a discharging portion and is installed in the main frame. The dust collection device has a dust collection portion and is installed in one side of the discharging device. The air purifier can produce ozone, negative ions and static electricity by moving the discharging portion and the dust collection portion and receiving suitable voltage. The voltage generator, the discharging portion, and the dust collection portion accomplish conduction. So that, the air purifier, according environment, change the operating mode to improve the air quality.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The present invention relates to an air purifier; particularly relates to an air purifier capable of releasing ozone, negative ions and static electricity. 
         [0003]    2. Background of the Invention 
         [0004]    As level of living grows, people ask higher and higher quality of surrounding environment air. On the contrary, due to the increase of population density, industries production, architecture construction and auto exhaust existed in the real situation; the dusts and the germs increase, the ozonosphere is damaged and the negative ions, which are helpful to human body, decrease correspondingly. 
         [0005]    From another point of view, animals should be treated like human beings, need high level of air and environment quality. When a livestock farm is full of stinks, which might be from garbage, excrements or other contamination, animals will get slow growth. Besides, contamination will pollute the livestock per se; harmful bacterium caused thereby will pollute the meet quality. The dusts arisen by treads of livestock also harm their growth. 
         [0006]    Hence, an improvement over the prior art is required to overcome the disadvantages thereof. 
       SUMMARY OF THE INVENTION 
       [0007]    The primary object of the invention is therefore to specify an air purifier can produce ozone, negative ions and static electricity, in order to clear the environment air. 
         [0008]    According to the invention, the object is achieved to provide an air purifier, which includes a main frame, a discharging device installed in the main frame and having a discharging portion, a dust collection device installed at a lateral side of the discharging device and having a dust collection portion, and a voltage generator electrically conducting the discharging portion and the dust collection portion. The dust collection portion is capable of motion relative to the discharging portion; the electrical connection between the discharging portion and the dust collection portion is alternative. 
         [0009]    By getting the relative distance between the discharging portion and the dust collection portion and switching the connection between the voltage generator and the dust collection portion, various voltages can be applied to generate and release ozone, negative ions and static electricity to collect dusts corresponding to the operation mode. The air purifier according to the present invention has simple structure for easy application, such as living environment, livestock farm and etc, to get improved fresh air. 
         [0010]    To provide a further understanding of the invention, the following detailed description illustrates embodiments and examples of the invention. Examples of the more important features of the invention thus have been summarized rather broadly in order that the detailed description thereof that follows may be better understood, and in order that the contributions to the art may be appreciated. There are, of course, additional features of the invention that will be described hereinafter which will form the subject of the claims appended hereto. 
     
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0011]    These and other features, aspects, and advantages of the present invention will become better understood with regard to the following description, appended claims, and accompanying drawings, where: 
           [0012]      FIG. 1  is a decomposition view of an air purifier according to the present invention; 
           [0013]      FIG. 2  is a decomposition profile of the air purifier according to another embodiment of the present invention; 
           [0014]      FIG. 3  is a flow chart of the air purifier according to the present invention; and 
           [0015]      FIG. 4  is a flow chart of the air purifier according to another embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
       [0016]    As illustration in  FIG. 1 , an air purifier  100  is provided for living environment, livestock farm and etc, in order to generate and release ozone, negative ions and static electricity to collect dusts and to get improved fresh air. The air purifier  100  includes a main frame  1 , a discharging device  2 , a dust collection device  3 , a driving mechanism  4  and a circuit control unit  5 . 
         [0017]    The main frame  1  is firm enough for disposing in an appropriate reach. The discharging device  2  is arranged in the main frame  1 . The dust collection device  3  is arranged at a lateral side of the discharging device  2 . The discharging device  2  includes a first framework  21 , which is substantially rectangular and has a discharging portion  22 . There are plenty of the discharging portions  22  disposed in the first framework  21  in an equidistant way. The dust collection device  3  includes a second framework  31 , which is substantially rectangular and has a dust collection portion  32 . The dust collection portion  32  is hollow. There are also plenty of the dust collection portions  32  disposed in the second framework  31 . The discharging portion  22  and the dust collection portion  32  moves relatively to each other. The discharging portion  22  can move into the corresponding dust collection portion  32 . The dust collection portion  32  can be a cylindrical or rectangular, and half close framework; the discharging portion  22  can be an elongation-like metal or a metallic silk. 
         [0018]    In addition, the main frame  1  further includes a fan device  6  for draining or entering the air, and a front/rear filter  7  for purifying the dust or miscellaneous articles in the air. The fan device  6  is an axial fan and connected to the circuit control unit  5  electrically. The discharging device  2 , the dust collection device  3 , the fan device  6  and the filter  7  can be assembled to the main frame  1  in sequence. 
         [0019]    The driving mechanism  4  is further apple to the main frame  1 , in order to move the discharging device  2  relatively to the dust collection device  3 . The driving mechanism  4  includes a motor  41  arranged on an exterior portion of the main frame  1 , a first driving member  42 , such as a worm, connected to and driven by the motor  1 , a second driving member  43 , such as a worm gear, connected to and meshed with the first driving member  42 , a rotation member  44 , such as a rack rod or screw rod, connected in the second member  43  and pivoted to the main frame  1 , and two joint members  45 , such as screws or racks, equidistant on the first framework  21  of the discharging device  2  to connect with the rotation member  44 . For the further description, the screw can be bolded with the screw rod and the rack can mesh with the rack rod. When the motor  41  is powered, the first driving member  42 , the second driving member  43 , the rotation member  44  and the joint members  45  are driven sequentially, thereby the discharging portion  22  of the discharging device  2  can moves inside the dust collection portion  32  of the dust collection device  3 . 
         [0020]    The circuit control device  5  is disposed at an appropriate portion of the main frame  1 , and electrically connected to the discharging device  2 , the dust collection device  3 , the driving mechanism  4  and the fan device  6 . Thus, the power of the dust collection device  3  can be switched, the voltage of the discharging device  2  can be controlled, and the motion of the driving mechanism  4  and the fan device  6  can be controlled. The circuit control unit  5  includes a sensor  51  for detecting air, a circuit controller  52 , and a voltage generator (not shown) electrically connected to the sensor  51  and the circuit controller  52 . The circuit controller  52  has a circuit board disposed inside, chips and electrical components for controlling the discharging device  2 , the dust collection device  3 , the driving mechanism  4  and the fan device  6 . The voltage generator electrically connects with the discharging portion  22  and the dust collection portion  32 . For further description, the sensor  51  detects the quality of air and senses whether if there is a human. After the information the sensor  51  gained is delivered to the circuit controller  52 , which can drive the motor  41  after judging the information according to a predetermined program, the discharging portion  42  can move forward or backward. At the same time, the voltage generator can be controlled for outputting to the discharging portion  22  and the dust collection portion  32 , so that the fan device  6  can be operated. The discharging portion  22  and the dust collection portion  32  conducts to positive and negative electrodes alternatively. By the outputting voltage, the discharging portion  22  and the dust collection portion  32  can generate high voltage or transform a higher voltage to a lower voltage. For example, a 100,000 volts voltage can be generated, or a 100,000 volts higher voltage can be transformed to a 50,000 volts lower voltage. 
         [0021]    By moving the dust collection device  3  can accomplish the effects mentioned above. The joint member  45  illustrated in  FIG. 2  can be arranged under the second framework  31  of the collection device  3 . The joint member  45  connects with the rotation member  44 , which can force the dust collection device forward or backward. The dust collection portion  32  can be moved relatively to the discharging portion  22 . The discharging portion  22  can move upward and downward, forward and backward, or leftward and rightward, in order to be staggered with and moved relatively to the dust collection portion  32 . An electromagnetic valve (not shown) can be further provided to connect with the dust collection device  3  or the discharging device  2 , thus the discharging portion  22  and the dust collection portion  32  can move relatively to each other. 
         [0022]    Please referring the table mentioned below: when the relative motion between the discharging portion  22  and the dust collection portion changes because the discharging portion  22  and the dust collection portion  32  electrically connect with the voltage generator, the voltage form the voltage generator can make the discharging portion  22  and the dust collection portion  32  to generate high voltages or to transform high voltages to low voltages. Therefore, the high or low voltages generated thereby can generate ozone, negative ions released, and make dusts collected. 
         [0000]    
       
         
               
               
               
               
             
               
               
               
               
               
               
             
           
               
                   
                   
               
               
                   
                   
                 Voltage 
                 On/Off 
               
               
                   
                   
                 (between 
                 (between the 
               
               
                   
                   
                 opposite 
                 voltage and 
               
               
                   
                   
                 electrodes of 
                 the dust 
               
               
                   
                 Position 
                 voltage 
                 collection 
               
             
          
           
               
                 No. 
                 Effect 
                 Rectangular 
                 Cylindrical 
                 generator) 
                 portion) 
               
               
                   
               
               
                 1 
                 Ozone 
                             Stretch 
                             Stretch 
                 Voltage to 
                 On 
               
               
                   
                   
                 in 
                 in 
                 release ozone 
               
               
                   
                   
                 Position A 
                 Position A 
               
               
                 2 
                 Concentrated 
                             Position B 
                             Position B 
                 Voltage to 
                 Off 
               
               
                   
                 negative 
                   
                   
                 release 
               
               
                   
                 ions 
                   
                   
                 concentrated 
               
               
                   
                   
                   
                   
                 negative ions 
               
               
                 3 
                 Dust 
                             Position C 
                             Position C 
                 Voltage to 
                 On 
               
               
                   
                 collection 
                   
                   
                 release static 
               
               
                   
                 via static 
                   
                   
                 electricity 
               
               
                   
                 electricity 
               
               
                 4 
                 Fresh 
                             Position D 
                             Position D 
                 Voltage to 
                 Off 
               
               
                   
                 negative ions 
                   
                   
                 release negative 
               
               
                   
                   
                   
                   
                 ions 
               
               
                   
               
             
          
         
       
     
         [0023]    Here are procedures for generating ozone, negative ions and the static electricity. 
         [0024]    1. Ozone: 
         [0025]    The sensor  51  of the circuit control unit  5  can detect the quality of environment air. When value of the air quality is so bad and worse than a criterion, the circuit controller  52  drives the motor  41 . The discharging portion  22  of the discharging device  2  and the dust collection portion  32  of the dust collection device  3  approaches to each other thereby, and the discharging portion  22  can stretch into the dust collection portion  32 . While the discharging portion  22  is in the dust collection portion  32 , high voltages can be applied to both of the two, the air will be ionized due to the high voltage, and ozone will be formed and released. 
         [0026]    Ozone is a powerful oxidizing agent and can be used for bleaching substances and for killing bacteria, such as colon  bacillus, bacillus cereus, bacillus megatherium, Shigella dysenteriae, Salmonella typhi , meningococcus,  Staphylococcus aureaus , salmonella, flu virus, hepatitis virus and etc. 
         [0027]    In addition, there are kinds of foul smells in a livestock farm. By using ozone to fresh the smells, the chemical structures of the foul-smell substances will be damaged and be broken into disinfected, clean substances. In the degradation process of ozone, gases, such as carbon monoxide or sulphurous compound, ammonia or the like, will become static, clean fresh air in the short time. 
         [0028]    2. Concentrated Negative Ions: 
         [0029]    When the discharging portion  22  and the dust collection portion  32  are far away from each other, concentrated negative ions will be released after high voltages exerted on the discharging portion  22  and disconnection between the voltage generator and the dust collection portion  32 . The concentrated negative ions will combine with particles of smoke or dust, so that the particles of smoke or dust will be charged and absorbed by the ground. The air will be clean after the particles drop. In addition, the negative ions can exchange electricity of protein skin in order to exterminate germs. 
         [0030]    There are some advantages about negative ions:
       1. To increase lung function of creatures: by breathing negative ions for 30 minutes, oxygen intake capability will increase 20% and carbon dioxide output capability raise 14.5%.   2. To improve the heart muscles: by acting with negative ions, the cardiovascular system will ameliorate and the blood pressure will be lowered.   3. To improve the sleep of creature: lying in negative ions will relax the nervous system, adjust carnosine corpus metabolism and increase the disease-resistant capability.   4. To kill the bacteria: negative ions will change the structure of the germ for leading the germ to be dead.       
 
         [0035]    3. Dust Collection Via Static Electricity 
         [0036]    When the discharging portion  22  approaches to the dust collection portion  32 , both of the two are applied to low voltages and a low-voltage static electricity field between the two is formed. The air in the field will be ionized and then attached to contaminated gas matters, which get charges thereby to be absorbed by the electrode having opposite electricity. Most contaminated matters move forward an inner wall of the dust collection portion  32 . The inner wall of the dust collection portion  32  can be clean if the layer the matter deposited is too thick. Furthermore, a dust absorption metal layer (not shown) can be provided in the dust collection portion  32 . When the contaminated gas is got into the dust collection portion  32  via the filter  7  for removing large particles by the fan device  6 , the matters of the contaminated gas can touch the metal layer completely and be clean by the effect of the static electricity. 
         [0037]    4. Fresh Negative Ions 
         [0038]    When the discharging portion  22  is far away from the dust collection portion  32 , the discharging portion  22  can be applied with a high-voltage, direct current power for generating the corona and rapidly releasing electrons in high speed. These electrons will catch oxygen or the like to form negative ions to fresh the air. 
         [0039]    The air purifier according to the present invention can be controlled by programming procedures and applied for the living environment or the livestock farm.  FIG. 3  shows procedures that the air purifier applied for the living environment. Here are the descriptions about the procedures: 
         [0040]    1. Starting up the air purifier  100  (S 101 ), and then the air purifier collects dusts (S 102 ); 
         [0041]    2. By detecting whether if the dust quantity in the air is decreased via the sensor  51  or by controlling the period of time of the circuit controller  52  (S 103 ), the sensor  51  judges if the dust quantity in the air matches the standard criteria or not. If the dust quantity in the air is higher than the standard, then goes back to the step (S 102 ). If the dust quantity in the air can meet the standard, then the air purifier  100  starts to generate negative ions (S 104 ); 
         [0042]    3. By further detecting whether if the dust quantity in the air is decreased via the sensor  51  or by controlling the period of time of the circuit controller  52  (S 105 ), the sensor  51  judges if the dust quantity in the air matches a predetermined criteria or not. If the dust quantity in the air is higher than the predetermined criteria, then goes back to the step (S 102 ). If the dust quantity in the air can meet the predetermined criteria, then the air purifier  100  keeps generating negative ions for a while; 
         [0043]    4. After the controlled period of time of the circuit controller  52 , the air purifier  100  starts to generate ozone (S 107 ), or by detecting whether if anybody is in this environment via the sensor  51  (S 106 ). If someone is in this environment, then goes back to the step (S 102 ), or the air purifier  100  generates ozone for a while and then go back to step (S 105 ). 
         [0044]      FIG. 4  shows procedures that the air purifier applied for the livestock farm. Here are the descriptions about the procedures: 
         [0045]    1. Starting up the air purifier  100  (S 201 ), for detecting whether if the ozone concentration in the air or controlling the period of time via the sensor  51  or the circuit controller  52  (S 202 ); 
         [0046]    2. If the ozone concentration is less than 0.1 ppm, then the air purifier generates ozone (S 203 ) and detects the dust quantity in the air via the sensor  51  or the circuit controller  52  after an appropriate period of time (S 204 ). If the ozone concentration is more than 0.1 ppm, then skip step (S 203 ) and the procedure goes to step (S 204 ). If someone is found after detecting in this environment, then the procedure goes to step (S 204 ) directly for preventing the person from the concentrated ozone; 
         [0047]    3. In step (S 204 ), if the dust quantity in the air is so heavy that the air purifier  100  generates concentrated negative ions (S 205 ) for a while, and then the air purifier  100  detects the air (S 206 ). If the dust quantity in the air is small then the procedure goes to step (S 206 ). Alternatively, the circuit controller  52  can control the appropriate period of time and then the procedure goes to step (S 205 ), and after a while the procedure goes to step (S 206 ); 
         [0048]    4. In step (S 206 ), if the dust quantity in the air increases, then the procedure goes to step (S 205 ); if not, the air purifier  100  start to generate static electricity for dusts collection (S 207 ). Alternatively, the circuit controller  52  can control the appropriate period of time and then the procedure goes to step (S 207 ); 
         [0049]    5. After step (S 207 ), the dust quantity is detected (S 208 ). If the dust quantity increases, then the procedure goes back to the step (S 205 ); if not, the air purifier  100  generates fresh negative ions (S 209 ). Alternatively, the circuit controller  52  can control the appropriate period of time and then the procedure goes to step (S 209 ); and 
         [0050]    6. After step (S 209 ), the dust quantity is detected (S 210 ). If the dust quantity increases, then the procedure goes back to the step (S 205 ); if not, the procedure goes back to the step (S 202 ). Alternatively, the circuit controller  52  can control the appropriate period of time and then the procedure goes to step (S 202 ). 
         [0051]    Therefore, by getting the relative distance between the discharging portion  22  and the dust collection portion  32  and switching the connection between the voltage generator and the dust collection portion  32 , high or low voltages can be applied to generate and release ozone, negative ions and static electricity to collect dusts corresponding to the operation mode. The air purifier according to the present invention has simple structure for easy application. 
         [0052]    It should be apparent to those skilled in the art that the above description is only illustrative of specific embodiments and examples of the invention. The invention should therefore cover various modifications and variations made to the herein-described structure and operations of the invention, provided they fall within the scope of the invention as defined in the following appended claims.