Two, background technology
People are for improvement work and living environment, eliminate because industrial production, transport facility, life cooking stove, electro-chemical equipment, the dust storm invasion and attack, smoking etc. make a large amount of dust suspensions that produce in the air, improve because negative/more and more serious pollution that the unbalanced phenomenon of cation is caused, the stimulation of avoiding the long-term life and work of people in such air, people's respiratory system to be produced, elimination is because of polluting produce tired, vexed, allergy and lassitude, absent minded, the phenomenon that operating efficiency descends, because the unbalance space static electricity current potential that also can make of ion raises, jeopardize the safety of electronic devices and components, reduce the reliability of electronic equipment, produced various bearing/the cation generator for this reason, Xelminator, utilize negative/cation that it produces go in and the unnecessary charged ion in space, reach elimination static, the purpose that purifies the air of a room.
Present negative/cation generator, though be all can not make by the method for diffusion or by the method for electric fan air-supply negative/high concentration that the cation generator is produced negative/cation is overflowed from Instrument shell smoothly efficiently, so the practical effect of negative/cation generator is very poor.The applicant once used the atmospheric concentration tester to measure ion concentration in outlet a distance of the negative/cation generator of routine, the ion concentration that the result tests is very low, this shows that all the other most ions attenuate because of being intercepted and absorb by shell.
Three, summary of the invention
At the very low present situation of above-mentioned existing ion generator ion effusion efficient, the objective of the invention is to, provide a kind of and can make negative/ion that the cation generator is produced can the high efficiency ion generator that has conductive grid of from housing, overflowing smoothly.
To achieve these goals, the thinking that the utility model addresses this problem is, the electric field with certain potentials is set on the ion discharge channel, quickens the effusion speed of negative/cation and solves owing to be provided with the safety problem that electric field brings.
The technical scheme that is adopted is; this has the ion generator of conductive protection grid; comprise; be provided with an ion generator commonly used in one housing and the housing; the emission of ions head is arranged on ion generator; be characterized in, on housing, also be provided with a conductive grid, be connected by bleeder resistance between conductive grid and the ion generator.
Some other characteristics of the present utility model are that described conductive grid is metal material or the semi-conducting material with electric conductivity, also can be that other nonmetallic materials make it have the material of certain electric conductivity through specific PROCESS FOR TREATMENT.
Described conductive grid can be an independently part, also can be that the other parts with housing fuse.
The magnitude of voltage that the dielectric voltage withstand value of described bleeder resistance and resistance value and ion generator are had adapts.
Ion generator with conductive protection grid/net of the present utility model; because at a certain current potential of protection grid/connect on the net; increased by an electric field; therefore can quicken to bear/the effusion speed of cation; simultaneously the bleeder resistance minority anion that protected grid absorbs of in time releasing makes protection grid current potential maintain certain current potential.So, the anion that is produced just can high efficiencyly escape in the air, improves the result of use of ion generator greatly.Solve existing ion generator and put into the casing intermediate ion inefficient problem of overflowing, had very high practical value.
Five, embodiment
Understand the utility model for clearer, the specific embodiment that provides below in conjunction with accompanying drawing and inventor is described in further detail the utility model.
Ion generator with conductive protection grid of the present utility model; comprise; be provided with an ion generator 5 commonly used in one housing 1 and the housing 1; emission of ions 2 is arranged on ion generator 5; it is characterized in that; on housing 1, also be provided with a conductive grid 3, be connected by bleeder resistance 4 between conductive grid 3 and the ion generator 5.
The utility model with ion efficiently overflow designing technique design negative/the cation generator, for ion generator provides the ion discharge channel.
The principle of negative/cation generator is utilize high voltage electric field to make air ionization produce negative/cation, and the needed operating voltage of the generation of ion to be picked up thousands of volts by thousands of lying prostrate.In order to protect personal safety; avoid to touch the electrification in high voltage part; generally all will bear/the cation generator places a closed shell 1; negative/cation that it produced is overflowed by a special window that is provided with 3; design the size of each grid (net) size in window design according to safety index, grid quantity is pressed the actual needs design.
The protection grid should have certain outer shape, and grid part can be an independently part, also can be that the other parts with shell are linked to be an integral body.
Protection grid 3 is that to be made of the metal material with electric conductivity also can be that other nonmetallic materials make it have certain electric conductivity through specific PROCESS FOR TREATMENT, is connected to a certain current potential of anion generator by a bleeder resistance 4.
Bleeder resistance 4 should have necessary insulation voltage and a certain size resistance value, and the size of its insulation voltage and resistance value adapts with negative/high-voltage value that the cation generator is had.
In concrete implementation process, follow following principle:
1. need the moulding and the size of flexible design ion effusion window according to exact shape.
2. press safety requirements, guaranteeing that human body can not touch under the prerequisite of emission of ions head, the pore size of design conductive grid.
3. guaranteeing also will to make ozone concentration be no more than the scope of permission under the normal situation of emission of ions.
4. beautify requirement by integral body, the grid moulding can be single part, also can be to hold together with housing.
5. the conductive grid material can select for use metal material or the processing of nonmetallic materials process related process to make it have certain electric conductivity.
6. the resistance of bleeder resistance because of negative/factors such as cation generator power size, can be selected the resistance with certain insulation voltage and respective resistance values for use, and is not high to the power requirement of resistor.
Operation principle of the present utility model is: negative/the cation generator is to utilize the high voltage electric field ionized air, produce to bear/cation.Anion is electronegative, and general casing surface all is that the electronegative ion of state of insulation (comprising that cabinet and metal chassis become the non-conductor that insulate with other parts because of coating processing) is on the path of overflowing now, the casing that can be had positive potential absorbs, when anion gathers to a certain degree, form an electronegative barrier, stop the effusion of anion, the anion that instrument is produced only limits in the Instrument shell, can't arrive among the air.The present invention connects a certain current potential in protection on the grid, quickens the effusion speed of anion, and the bleeder resistance minority anion that protected grid absorbs of in time releasing makes protection grid current potential maintain certain current potential simultaneously.So, the anion that is produced just can high efficiencyly escape in the air, improves the result of use of ion generator greatly.
Below be inventor's concrete case study on implementation:
Fig. 1 is a structural representation of the present utility model.Fig. 2 and Fig. 3 are the circuit diagrams of the utility model electricity theory diagram and instantiation.
The housing 1 of ion generator and the circuit part of enclosure interior, circuit is all or part of to be formed by the epoxy resin embedding.
Circuit part comprises: power supply circuits 01, DC converter 02, oscillating circuit 03, booster circuit 04, multistage voltage-multiplying circuit 05, emission of ions 2 connect to form.4 is bleeder resistance, is connected between multistage voltage-multiplying circuit and the conductive protection grid.
Oscillating circuit 03 is by R
1, R
2, Q
1, Q
2, L
1, D
1Form, pass through R
1, R
2The biasing circuit of forming is given Q
1, Q
2The multiple tube oscillating circuit of forming provides bias voltage, is connected with protection diode D on the multiple tube
1, the input capacitance of sheet type piezoelectric ceramic transformer is a tank circuit inductance, the mechanical resonant frequency of its frequency of oscillation and sheet type piezoelectric ceramic transformer is approaching.
The operation principle of oscillating circuit 03 is: by the sheet type piezoelectric ceramic transformer boost PT output by the distributed capacitance coupling to multiple tube Q
1Base stage provides feedback signal to form self-oscillation, by Q
1, Q
2The multiple tube of forming is taken into account vibration, is amplified, provides the triple operating states of energy to provide intake to sheet type piezoelectric ceramic transformer PT, the sheet type piezoelectric ceramic transformer boosts, multistage voltage-multiplying circuit 5 is made up of electric capacity and diode, realizes with the method that increases and decreases voltage-multiplying circuit progression according to the height of required output voltage.
Circuit connecting mode and operation principle are as follows:
Power supply circuits 01 are through IC and the peripheral circuit L of boosting
2And C
27 pin that add the IC that boosts are through the direct voltage of DC/DC conversion from 1 pin and 8 pin output basic fixed, the boost regulating action of IC inside of dependence, its output dc voltage is stabilized on a certain magnitude of voltage and remains unchanged substantially after the DC/DC conversion, and its function is equivalent to source of stable pressure.Capacitor C
1, C
3Be the filter capacitor of application-specific integrated circuit peripheral circuit requirement, the IC that boosts output galvanic current is pressed through R
1, R
2The biasing circuit of forming offers Q
1, Q
2The bias voltage of the multiple tube oscillating circuit of forming 03, L
1Be tanke circuit inductance, be connected Q
1, Q
2Collector electrode on.The plate piezoelectric transformer input capacitance is a tank circuit inductance, and the mechanical resonant frequency of its frequency of oscillation and sheet type piezoelectric ceramic transformer is approaching.The transformer of booster circuit 04 also can adopt plate piezoelectric transformer, plate piezoelectric transformer obtains exciting power from oscillation circuit, produce about N times the ac output voltage of boosting by the plate piezoelectric transformer output and be transferred to multistage voltage-multiplying circuit 04, multistage voltage-multiplying circuit 05 is by D
2, D
3, D
4, D
5, D
6, D
7And capacitor C
4, C
5, C
6, C
7Form, according to requirement to the output voltage height, increase and decrease the progression of multistage voltage-multiplying circuit, output voltage is reached-the above direct voltage of 5KV, be connected by bleeder resistance and emission of ions 2, be connected between multistage voltage-multiplying circuit and the conductive grid, emission of ions 2 is made of spray point or carbon fibre brush.