CN1054015C - High voltage generator for display - Google Patents
High voltage generator for display Download PDFInfo
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- CN1054015C CN1054015C CN95106269A CN95106269A CN1054015C CN 1054015 C CN1054015 C CN 1054015C CN 95106269 A CN95106269 A CN 95106269A CN 95106269 A CN95106269 A CN 95106269A CN 1054015 C CN1054015 C CN 1054015C
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Abstract
The present invention relates to a high voltage generator for displays. A main coil, an insulation film, a high voltage coil belong to a high voltage generator and are orderly wound on a hollow insulation tube with a plurality of sets of high voltage gold foil capacitors. Each capacitor gold foil in the two sets of high voltage gold foil capacitors which are respectively wound on the high voltage coil is in series connection in a mutually overlapped mode. The two sets of high voltage gold foil capacitors are reversely wound on the high voltage coil. Therefore, the interference voltage generated between the two gold foil capacitors is counteracted so as to avoid the interference for electronic elements. The capacitors between the gold foils have no predetermined clearance with the high voltage coil, and an upper shell and a lower shell are made of iron core materials and are used for covering the elements.
Description
The present invention relates to a kind of device for generating high voltage of video display.
At present, it is quite general that the cathode ray tube of display is used, for example computer monitor of colour TV, high definition even the medically display etc. of ultrahigh resolution.The electron gun 2 (consulting shown in Figure 1) of the cathode ray tube 1 of this traditional display, consist predominantly of the negative electrode (Cathode) 3 that can produce three-color electron beam, to produce electronics along the G1 control utmost point 4 directions, this G1 control utmost point 4 and 5 combinations of G2 anode, in electron gun 2, form an electron beam forming area (BFR), make the electronics of band energy form the vertically three-color electron beam of linear array, nuclear electron rifle 2 also comprises the elements such as anode 7 of G3 focusing electrode 5 and G4, to form a high voltage condenser lens after these elements combination, on the fluorescence coating 9 with the display screen 8 of the cathode ray tube that electron beam focused on display, 9 of this fluorescence coatings are according to this electron beam sensitization, form video image on the display screen 8 of the cathode ray tube of display.The cathode ray tube of this display all needs to produce high pressure by an anode high voltage generator, and the required anode high voltage of the normal operation of cathode ray tube of this display is provided through anode button 10.So, this anode high voltage generator is the indispensable critical elements of the normal operation of cathode ray tube in the display, the difference of type, application mode or the demand of the cathode ray tube of the range size visual display unit of the voltage that it provided can be from thousands of volts to 30,000 volts.
Consult the part assembling schematic diagram of conventional anode high-pressure generator shown in Figure 2, this generator comprises a housing 11, be provided with an accommodation space 12 in this housing 11, support body 40 and on high-voltage capacitance 43, coil 41 and other rectifier cells 42 installed can be contained in just in this housing 11, these housing 11 lateral margin appropriate positions also are provided with flute 13, this flute 13 just can allow an adjustment button 20 embed wherein, after these elements are assembled into the accommodation space 12 of this housing 11, give the sealing location again.But 44 set on this support body 40 of terminals (pin) must expose outside, so that these terminals 44 are connected with other interlock circuit.In addition, behind one group of U sections heart 30,31 through hole 45 through being sheathed on this support body 40, mat one fastener 32 is fixed, should allow these iron cores run through the central authorities of this coil 41, form path, a normal magnetic field, the high voltage that the coil 41 of this anode high voltage generator is produced then exports the anode button 10 of the cathode ray tube 1 of display to by set cable in the high pressure delivery outlet 14 of these housing 11 bottoms.
Consult the circuit diagram that conventional anode high-pressure generator shown in Figure 3 is connected with the cathode ray tube and the peripheral circuit thereof of display, this anode high voltage generator mainly comprises a main coil (primary coil) 410,41 and elements such as high-voltage capacitance 43 of several high-tension coils (high voltage coil), wherein an end 412 of this main coil 410 is connected with the current and power supply (not shown) feed end of the electronic circuit of this display, 413 of its other ends are connected with the squarer (not shown) of the electronic circuit of this display via a horizontal output switch (horizontal output switch) 414, make the frequency period ground diverter switch of this horizontal output switch 414 according to this squarer, its frequency is approximately between 15KHz-120KHz; This high-tension coil 411 is with n high-voltage rectification element 42 (as: diodes according to actual demand, diode) be serially connected with respectively between these adjacent high voltage coils, to form n high-tension coil, between these coils and be arranged with one group of U sections heart (Ferrite core) 30,31, form a normal magnetic field magnetic circuit; 43 of this high-voltage capacitances and these high voltage coils 411 are in parallel, the ripple (ripple) that is produced with effective reduction high pressure, the one end also exports the high pressure that it produced the cathode ray tube 1 of display to, and the total load R (load) of the cathode ray tube 1 of this display is about 25 * 10
6Ω, its total capacitance value C
T(capacitor) be about 1500PF.
Because, in the above-mentioned conventional anode high-pressure generator, this main coil (primary coil) 410, high-tension coil (high voltage coil) 411, high-voltage rectification element 42, between high-voltage capacitance 43 elements such as grade, must suitably insulate, so, when these elements are assembled into the housing of being made by thermoplastic, promptly need by insulating polymeric material (polymeric material, as: epoxy epoxy) give the sealing location, to finish each interelement insulating effect.
When this horizontal output switch 414 cuts out, the DC power supply (not shown) of the peripheral electronic circuit of the cathode ray tube of this display will be by an end 412 its DC power supply of supply of this main coil 410, make this main coil 410 produce magnetic energy and accumulate in wherein, during again with this horizontal output switch 414 moments unlatching, this switch 414 will produce the pulse (pulse) of an about 1000Vac, this high-tension coil 411 is then according to the transformer principle (transformerprinciple) of this anode high voltage generator, in regular turn this pulse is piled up gradually and be promoted to a sizable numerical value, can be 3KV-30KV according to its design, because the high pressure that produces is the anode tap that exports this display negative ray pipe to, so the cathode ray tube capacitor C of this display
TA high magnitude of voltage will be charged to.When the negative electrode of this display was penetrated the fiber tube normal operation, its load resistance R was on the whole from this capacitor C
TIn obtain required electric current, this capacitor C like this
TThe middle high voltage of putting aside will fade away, and when next pulse produces, be supplemented to required high-voltage value again.Hence one can see that, and in this traditional cathode high voltage generator, the d-c component of this high pressure will produce a ripple voltage (ripple voltage), and when its load current (loadcurrent) is high more, its ripple voltage value also will be big more.
But, because the ripple voltage that is produced in this traditional anode high voltage generator, for the display cathode ray tube of normal video signal quality, be not to be the acceptable situation, so, must make this electric capacity in parallel by installing an extra high-voltage capacitance 43 in this anode high voltage generator additional, in the hope of eliminating this ripple voltage value with the cathode ray tube of display.This electric capacity 43 is independent components in this anode high voltage generator, based on security consideration, this electric capacity 43 and the suitable gap of the essential maintenance of interelements such as this high-tension coil (high voltagecoil) 411 and high-voltage rectification element 43, otherwise, if as this main coil (primary coil) 410, high-tension coil (high voltage coil) 411, high-voltage rectification element 42, after high-voltage capacitance 43 elements such as grade are assembled into the housing of being made by thermoplastic, if these interelements are by insulating polymeric material (polymeric material, as: epoxy) operation of being insulated is located in sealing, and when improving not to the utmost, high-voltage pulse in this high-tension coil (high voltage coil) 411 will cause the danger that produces corona (corona), and this corona (corona) not only may cause this anode high voltage generator damage (breakdown) or even therefore initiation fire (fire hazard), and before this anode high voltage generator is damaged, also will produce abnormal electromagnetic interference.
In addition, because the housing made from thermoplastic reaches the insulating material of locating in order to sealing, its heat conduction is all relatively poor, the heat energy that is accumulated wherein, will form heat effect to elements such as high-voltage rectification element 42 and high-voltage capacitances 43, and these elements are heated to up to 100 ℃ under the condition of 30 ℃ of room temperatures, so, according to the sense datum (factor) 3 in its useful life
-0.1 Δ TAs can be known (wherein Δ T equal actual serviceability temperature deduct the design serviceability temperature), will significantly reduce the useful life of these elements.In the consideration based on fail safe and reliability, interelements such as this electric capacity and this high-tension coil 411 certainly will keep a suitable gap.In addition, for avoiding two adjacent high-tension coils 411 of high-voltage breakdown, enough distances (about lmm) must be arranged between this high-tension coil 411, so outer field more high-tension coil 411, more away from main coil 410, be its magnetic field coupling (magnetic coupling), loose more (loose) will become, therefore, this phenomenon will cause the ringing effect of not expected (ringing), and by the mode of radio frequency interference (radio frequency interference) cathode-ray tube apparatus or other peripheral equipment formation of display be disturbed.
In a word, the anode high voltage generator of the cathode ray tube of traditional monitor, not only complex structure.Part assembly program is numerous and diverse; cause its cost of manufacture significantly to increase; and because the insulating material that this generator is located each element in order to the housing and the sealing of insulation; a large amount of again chemical materials that use as epoxy resin etc.; environmental issue certainly will will be caused; and can't recycle, these are all acted counter to the environmental protection of whole world attention now and the trend of resource recovery.
An object of the present invention is to provide a kind of high pressure generating apparatus of display, make between its main coil and voltage multiplie and goldleaf and iron core between need not the gap that keeps suitable, so the high-voltage pulse that can effectively exempt in the high-tension coil of conventional anode high-pressure generator produces corona, cause this anode high voltage generator damage (breakdown) or thereby the danger of initiation fire (fire hazard), and the abnormal electromagnetic interference of unlikely generation.
Another object of the present invention is because these interelements need not to keep a suitable gap, so can make the high-pressure generator miniaturization, complex structure, the part assembly program that can effectively solve the conventional anode high-pressure generator are numerous and diverse, and the shortcoming that cost of manufacture is higher makes this anode high voltage generator have the better ratio of performance to price.
Another purpose of the present invention provides a kind of high pressure generating apparatus of display, uses the housing of being made by thermoplastic in the conventional anode high-pressure generator so that omit, thereby solves a large amount of environmental issues of using poisonous chemical material.
The present invention is achieved in that it consists predominantly of following components and parts: an iron core, a main coil, a high-tension coil, a voltage multiplie, comprise by at least simultaneously draping over one's shoulders again and formed by some groups of high pressure goldleaf electric capacity and more than one several high-voltage rectification elements of dielectric film, wherein the high pressure goldleaf electric capacity of respectively organizing in this voltage multiplie is around again on this high-tension coil, one end of this voltage multiplie is connected with this high-tension coil, its other end then exports the high pressure that is produced to the anode button of the cathode ray tube of this display, each high-voltage rectification element is the electric capacity of respectively organizing in the high pressure goldleaf electric capacity in order to connect, so that the high pressure that this high-tension coil produced is pressurized to required high-voltage value; It is characterized in that: wherein above-mentioned main coil, high-tension coil and high pressure goldleaf capacity cell can be insulated from each other ground in regular turn around multiple in a hollow insulation body, above-mentioned iron core comprise by material unshakable in one's determination make on, lower house, on being somebody's turn to do, one end of lower house is closed, the corresponding other end then becomes open shape, and on being somebody's turn to do, the accommodation space of lower house just can be with wherein ccontaining around multiple said elements in this hollow insulation body, in this accommodation space respectively correspondence be provided with the center projection, these center projections are last, when lower house is finished assembling by fastener with it, the center projection that the periphery of its housing open end and center thereof are set, just can lay respectively at the centre bore of the periphery of these high pressure goldleaf electric capacity and hollow insulation body and contact with each other, assembling finish on, the center projection of lower house forms a magnetic circuit, and the appropriate location of these housings is provided with an anode cable that is connected with the anode button of this cathode ray tube, makes the anode high voltage that is produced can export the anode of this cathode ray tube through this cable to.
Wherein the length of hollow insulation body can be than institute on it around multiple main coil, high-tension coil and high pressure goldleaf capacity cell for growing, when this hollow insulation body and on when multiple said elements is encapsulated in upper and lower casing, the length that these hollow insulation body two ends are reserved, just make said elements and upper and lower casing keep an appropriate insulation distance, seal housing so that the shell of the upper and lower casing of finishing in assembling forms one.
The upper and lower casing of making by material unshakable in one's determination that comprises wherein unshakable in one's determination, this upper shell is a disk body shape, which is provided with a center projection, can insulate on this center projection around multiple main coil, ground insulate on this main coil again around multiple high-tension coil, at last, the high pressure of dielectric film goldleaf electric capacity is arranged again around again on this high-tension coil with draping over one's shoulders in the voltage multiplie again; One end of this lower house is open shape, its other end then becomes closed, the end that this lower house is open shape is provided with an accommodation space, this accommodation space just can be with wherein ccontaining around multiple element on the projection of the center of upper shell, on this, when lower house mat fastener is finished assembling, the disk body periphery of this lower house and this upper shell and center projection, just can contact with each other at the periphery and the central hole location place thereof of this high pressure goldleaf electric capacity respectively, on making that this assembling finishes, the center of lower house convexes into a magnetic circuit, its shell then forms one and seals housing, and the appropriate location of these housings is provided with an anode cable that is connected with the anode button of this cathode ray tube, can make the anode high voltage that is produced can export the anode of this cathode ray tube through this cable to.
Wherein this upper and lower casing is when assembling, and the appropriate location of this surface of shell can be embedded an adjustment button, is used to adjust the focus voltage that this anode high voltage generation device exports the cathode ray tube of display to.
Wherein the appropriate position of this upper and lower casing is provided with the hole that can load location colloid or fixer at least, when making upper and lower casing finish assembling, can load location colloid or fixer via this hole, so that seal the wherein each element in location.
Wherein the appropriate position of this upper and lower casing is provided with a hole at least, and this device can be connected set terminals via this hole with other interlock circuit.
Visual actual demand between the high pressure goldleaf electric capacity in wherein main coil, a high-tension coil and the voltage multiplie and dielectric film is set is to strengthen each interelement compressive resistance.
Characteristics of the present invention are around again on high-tension coil (high voltage coil) with several high pressure goldleaf electric capacity (foile) in the voltage multiplie (multiplier), allow in the opposite direction the goldleaf of each electric capacity in multiple two groups of high pressure goldleaf electric capacity on this high-tension coil again, be connected in series in the mode that overlaps each other.Like this, the induced voltage (induced voltage) that is produced between these goldleaf electric capacity is cancelled out each other, can avoid electronic component is produced interference, and because of these goldleaf are that current potential by this high-tension coil begins around multiple, around proceeding to a half again, its potential value will reach peak value, then be reduced to earth potential at last, so, can make and need not to reserve suitable gap (clearance) between these electric capacity and this high-tension coil.Elements such as the main coil in this high pressure generating apparatus, dielectric film, high-tension coil and several high pressure goldleaf electric capacity in regular turn by around multiple behind a hollow insulation body (insulating tuble), the upper and lower casing of making by material unshakable in one's determination again, with these element claddings wherein, make and distinguish the corresponding center projection that is provided with in the accommodation space of this upper and lower casing, the centre bore that just can run through hollow insulation body, and contact with each other, thereby make this center projection form a magnetic circuit, and the shell of the upper and lower casing that assembling is finished can form one and seal housing.
Introduce the present invention in detail below in conjunction with accompanying drawing.
Fig. 1 is the electron gun schematic diagram of the cathode ray tube of traditional monitor;
Fig. 2 is the part assembling schematic diagram of anode high voltage generator of the cathode ray tube of traditional monitor;
Fig. 3 is the circuit diagram that traditional anode high voltage generator shown in Figure 2 is connected with display cathode ray tube and peripheral circuit thereof;
Fig. 4 is the cathode ray tube of a kind of display high pressure generating apparatus of the present invention and display and the schematic diagram of peripheral circuit connecting circuit thereof;
Fig. 5 is the generalized section of aforementioned a kind of display high-pressure generator of the present invention shown in Figure 4;
Fig. 6 is each capacitor C 2, C4 in each high pressure goldleaf capacitance group in the high pressure generating apparatus of the present invention shown in Figure 4 ... C2n or C1, C3, C5 ... generalized section between C2n+1;
Fig. 7 be in the high pressure generating apparatus of the present invention shown in Figure 4 elements such as main coil, dielectric film, high-tension coil and high pressure goldleaf electric capacity in regular turn by assembling schematic diagram around multiple hollow insulation body;
Fig. 8 is the part assembling schematic diagram of the high-pressure generator of aforementioned a kind of display of the present invention shown in Figure 4;
Consult the circuit diagram that the high pressure generating apparatus of a kind of display of the present invention shown in Figure 4 is connected with the cathode ray tube and the peripheral circuit thereof of display, this high pressure generating apparatus mainly includes a main coil (primary coil) 510,511 and elements such as voltage multiplie (multiplier) 53 of a high-tension coil (high voltage coil), one end 512 of wherein main coil 510 is to be connected with the DC power supply (not shown) feed end of the electronic circuit of this display, 513 of its other ends are connected with the electronic circuit squarer (not shown) of this display via a horizontal output switch (horizontal output switch) 414, make the frequency period ground diverter switch of this horizontal output switch 414 according to this squarer, its frequency is approximately between 15KHZ one 120KHZ; One end ground connection of this high-tension coil 511, the other end then is connected with voltage multiplie 53; This voltage multiplie 53 comprises by several high-voltage rectification element 532 (as: diodes more than, diode) and high pressure goldleaf electric capacity 531 form, between these coils and be arranged with one group of iron core 60,61, to form normal magnetic field circuit, the other end of this voltage multiplie 53 also exports the high pressure that it produced the cathode ray tube 1 of display to, and the total load R of this display cathode ray tube 1 (load) is about 25 * 10
6Ω, its total capacitance value C
T0Capacitor) then be about 1500PF.
In anode high voltage generation device of the present invention, consult shown in Figure 5, this main coil (primarycoil) 510 coiling earlier is on a hollow insulation body 50 (insulating tube), clad one deck dielectric film 514 (insulating foil) on this main coil (primary coil) 510 again, again a high-tension coil (high voltage coil) is wound the line on this layer dielectric film 514 on it, at last, with draping over one's shoulders in this voltage multiplie 53 high pressure of dielectric film goldleaf electric capacity (foils) 531 is arranged again again, around again on this high-tension coil (high voltage coil) 511.
In a most preferred embodiment of the present invention, draping over one's shoulders in this voltage multiplie 53 has the high pressure of dielectric film goldleaf (foils) electric capacity 531 can be divided into two groups again, wherein first group of goldleaf electric capacity comprises 2n electric capacity of connecting, be capacitor C 2 in regular turn, C4 ... C2n, second group of goldleaf electric capacity comprises the electric capacity of 2n+1 series connection, be capacitor C 1 in regular turn, C3 ... C2n+1, wherein the visual actual demand of n value can be 1,2,3 ... respectively should organize two serial connection electric capacity (as: capacitor C 2 and C4 adjacent in the goldleaf electric capacity 531, or capacitor C 1 and C3) in, the extensible negative pole end of the goldleaf other end of the positive terminal of an electric capacity (as capacitor C 2 or capacitor C 1) as another adjacent serial connection electric capacity (as: capacitor C 4 or capacitor C 3), consult shown in Figure 5, mode is analogized according to this, form two groups of high pressure goldleaf electric capacity 531 respectively, capacitor C 2 negative pole ends of this first group of goldleaf electric capacity one end should be connected with the positive terminal of this high-tension coil (high voltage coil) 511, the negative pole end of this capacitor C 2 and a forward high-voltage rectification element of mat D1 (as: diode, diode) be connected to the positive terminal of the capacitor C 1 of this second group of goldleaf electric capacity one end, this first group of goldleaf electric capacity other end capacitor C 2n positive terminal is the positive terminal that is connected to the capacitor C 2n+1 of second group of goldleaf electric capacity one end by a forward high-voltage rectification element D2n+1, capacitor C 1 negative pole end of this second group of goldleaf electric capacity one end is ground connection then, and the negative pole end of the capacitor C 2n 10 of this second group of goldleaf electric capacity other end and a forward high-voltage rectification element of mat D2n are connected to the positive terminal of this capacitor C 2n.If this capacitor C 2n+1 is the not end electric capacity of this first group of goldleaf electric capacity, then this capacitor C 2n 10 positive terminals will be connected to the anode button of this cathode ray tube, export the anode of the cathode ray tube 1 of this display to the high pressure that this voltage multiplie 531 is produced.
This high pressure goldleaf electric capacity 531 is around multiple mode on this high-tension coil (high voltage coil) 511, mainly be respectively in the opposite direction around again on this high-tension coil (high voltage coil) 511 with each goldleaf electric capacity 531, because, above-mentioned each capacitor C 2 of respectively organizing in the goldleaf electric capacity 531, C4 ... C2n or C1, C3, C5 ... high-voltage rectification element between C2n+1, the sense of current wherein is just the opposite with making, so induced voltage (inducedvoltage) that itself and above-mentioned coil interact and produced, to cancel out each other, and no longer exist, avoid electronic component is produced interference, the formed electric capacity of each goldleaf belongs to simple high-voltage capacitance in fact.In addition, because the above-mentioned goldleaf electric capacity 531 of respectively organizing is that current potential by this high-tension coil 511 begins around multiple, around proceeding to a half again, its potential value reaches peak value, then be reduced to earth potential at last, so, can making respectively, this electric capacity 531 and 511 of this high-tension coils need not to reserve suitable gap (clearance).Anode high voltage generation device of the present invention can be directly by adjusting the numerical value of each electric capacity, with the ripple voltage that d-c component was produced (ripple voltage) value of this anode high voltage generation device of effective elimination.
Main coil in this anode high voltage generation device (primary voltage) 510, dielectric film 514 (insulating foil), high-tension coil (high voltage coil) 511 and high pressure goldleaf electric capacity 531 elements such as (foils) are in regular turn by behind multiple this hollow insulation body 50 (insulatingtube), consult shown in Figure 7, again by material unshakable in one's determination make on, lower house 50,51, with these element claddings wherein, on being somebody's turn to do, lower house 50, an end of 51 is closed, the corresponding other end then becomes open shape, and wherein accommodation space 611 just can be with aforementioned wherein ccontaining around multiple all elements in this hollow insulation body 50, on being somebody's turn to do, in the accommodation space 611 of lower house respectively correspondence be provided with center projection 612, when this center projection 612 respectively last, when lower house 60 mat fasteners 615 are finished assembling with it, the center projection that the periphery of its housing open end and center thereof are set, just can be respectively contact with each other in the periphery of these high pressure goldleaf electric capacity 531 and centre bore 501 places of hollow insulation body 50, make that this assembling finishes on, lower house 60,61 center projection 612 forms a magnetic circuit.In addition, because the length of this hollow insulation body can be to grow around multiple elements such as this main coil 510, dielectric film 514, high-tension coil 511 and above-mentioned high pressure goldleaf electric capacity 531 than institute on it, consult Fig. 7 and shown in Figure 8, when this hollow insulation body 50 and on when these multiple elements are encapsulated in upper and lower casing 60,61, the length 502 that these hollow insulation body 50 two ends are reserved, just can make these elements and upper and lower casing 60,61 keep an appropriate insulation distance, therefore, the shell of the upper and lower casing that assembling is finished promptly forms one and seals housing.
Another embodiment of the present invention, can make an end of above-mentioned this upper shell 60 of making by material unshakable in one's determination discoid, which is provided with a center projection 612, on this center projection 612 around multiple main coil (primary coil) 510, clad one deck dielectric film 514 (insulating foil) on this main coil (primary coil) 510 again, on this layer dielectric film 514 again with a high-tension coil (highvoltage coil) 511 coiling on it, at last, with draping over one's shoulders in this voltage multiplie 53 high pressure of dielectric film goldleaf electric capacity (foil) 531 is arranged again again, around again on this high-tension coil (high voltage coil) 511, one end of this lower house 61 be just can ccontaining this upper shell open shape, its other end then becomes closed, and the accommodation space 611 of this lower house 61 just can be with aforementioned wherein ccontaining around multiple these elements on the center of this upper shell 60 projection 612, on this, lower house 60, when 61 mat fasteners 515 are finished assembling with it, the disk periphery and the center projection of this lower house 61 and this upper shell 60, just can contact with each other at the periphery and the central hole location place thereof of above-mentioned high pressure goldleaf electric capacity 531 respectively, on making that this assembling finishes, lower house 60,61 center projection 612 forms a magnetic circuit, and the assembling finish on, the shell of lower house then forms one and seals housing.
Because, elements such as high pressure goldleaf electric capacity 531 among the present invention in this main coil 510, high-tension coil 511 and the voltage multiplie 53, all can be when making, drape over one's shoulders earlier multiple one deck appropriate insulation film thereon, so, the aforementioned dielectric film 514 that between main coil 510 and high-tension coil 511, is cladded (or between each high pressure goldleaf electric capacity, cladding one deck dielectric film), also visual actual demand and designing, strengthening each interelement compressive resistance, so, be not to implement necessary element of the present invention.
Consult shown in Figure 8, on the anode high voltage generation device of the present invention, lower house is when assembling, the appropriate location of surface of shell can be embedded an adjustment button 62, adjust the focus voltage that this anode high voltage generation device exports the cathode ray tube of display to by this, and on the appropriate location of housing, be respectively equipped with an anode cable 613 that is connected with the anode of the cathode ray tube of display, make the anode high voltage that is produced to export anode button to through nuclear cables 613, in addition, on being somebody's turn to do, the appropriate location of lower shell surface is provided with a hole 614 at least, but this device mat hole 614 makes set terminals 64 be connected with other interlock circuit, and when last, when lower house is finished assembling, can load location colloid or fixer via hole 614, to seal wherein each element of location.
In a word, the present invention has not only omitted and has used the housing of being made by thermoplastic on the conventional anode high-pressure generator, thereby the environmental issue of the poisonous chemical materials of a large amount of uses of having separated rhymed formula, and goldleaf electric capacity 531 and this iron core housing 60 in main coil 510 of the present invention and the voltage multiplie 53, the suitable gap that 61 interelements such as grade need not to keep, effectively rabbit removes the bubble that the conventional anode high-pressure generator not exclusively produces because of insulation processing, cause the high-voltage pulse in the high-tension coil to produce corona, make this anode high voltage generator damage or even the therefore danger of initiation fire, and the abnormal electromagnetic interference of unlikely generation, in addition, owing to the gap that need not between the said elements to keep suitable, so more can make the miniaturization of anode high voltage generator by the present invention.
Claims (7)
1, a kind of anode high voltage generation device of display, consist predominantly of following components and parts: an iron core, a main coil, a high-tension coil, a voltage multiplie, comprise by at least simultaneously draping over one's shoulders again and formed by some groups of high pressure goldleaf electric capacity and more than one several high-voltage rectification elements of dielectric film, wherein the high pressure goldleaf electric capacity of respectively organizing in this voltage multiplie is around again on above-mentioned high-tension coil, one end of this voltage multiplie is connected with this high-tension coil, its other end then exports the high pressure that is produced to the anode button of the cathode ray tube of this display, each high-voltage rectification element is the electric capacity of respectively organizing in the high pressure goldleaf electric capacity in order to connect, so that the high pressure that this high-tension coil produced is pressurized to required high-voltage value; It is characterized in that: wherein above-mentioned main coil, high-tension coil and high pressure goldleaf capacity cell can be insulated from each other ground in regular turn around multiple in a hollow insulation body, above-mentioned iron core comprise by material unshakable in one's determination make on, lower house, on being somebody's turn to do, one end of lower house is closed, the corresponding other end then becomes open shape, and on being somebody's turn to do, the accommodation space of lower house just can be with wherein ccontaining around multiple said elements in this hollow insulation body, in this accommodation space respectively correspondence be provided with the center projection, these center projections are last, when lower house is finished assembling by fastener with it, the center projection that the periphery of its housing open end and center thereof are set, just can lay respectively at the centre bore of the periphery of these high pressure goldleaf electric capacity and hollow insulation body and contact with each other, assembling finish on, the center projection of lower house forms a magnetic circuit, and the appropriate location of these housings is provided with an anode cable that is connected with the anode button of this cathode ray tube, makes the anode high voltage that is produced can export the anode of this cathode ray tube through this cable to.
2, the anode high voltage generation device of display as claimed in claim 1, it is characterized in that: wherein the length of hollow insulation body can be than institute on it around multiple main coil, high-tension coil and high pressure goldleaf capacity cell for growing, when this hollow insulation body and on when multiple said elements is encapsulated in upper and lower casing, the length that these hollow insulation body two ends are reserved, just make said elements and upper and lower casing keep an appropriate insulation distance, seal housing so that the shell of the upper and lower casing of finishing in assembling forms one.
3, the anode high voltage generation device of display as claimed in claim 1 is characterized in that; The upper and lower casing of making by material unshakable in one's determination that comprises wherein unshakable in one's determination, this upper shell is a disk body shape, which is provided with a center projection, can insulate on this center projection around multiple main coil, ground insulate on this main coil again around multiple high-tension coil, at last, the high pressure of dielectric film goldleaf electric capacity is arranged again around again on this high-tension coil with draping over one's shoulders in the voltage multiplie again; One end of this lower house is open shape, its other end then becomes closed, the end that this lower house is open shape is provided with an accommodation space, this accommodation space just can be with wherein ccontaining around multiple element on the projection of the center of upper shell, on this, when lower house mat fastener is finished assembling, the disk body periphery of this lower house and this upper shell and center projection, just can contact with each other at the periphery and the central hole location place thereof of this high pressure goldleaf electric capacity respectively, on making that this assembling finishes, the center of lower house convexes into a magnetic circuit, its shell then forms one and seals housing, and the appropriate location of these housings is provided with an anode cable that is connected with the anode button of this cathode ray tube, can make the anode high voltage that is produced can export the anode of this cathode ray tube through this cable to.
4, as the anode high voltage generation device of claim 1 or 3 described displays, it is characterized in that: wherein this upper and lower casing is when assembling, the appropriate location of this surface of shell can be embedded an adjustment button, is used to adjust the focus voltage that this anode high voltage generation device exports the cathode ray tube of display to.
5, as the anode high voltage generation device of claim 1 or 3 described displays, it is characterized in that: wherein the appropriate position of this upper and lower casing is provided with the hole that can load location colloid or fixer at least, when making upper and lower casing finish assembling, can load location colloid or fixer via this hole, so that seal the wherein each element in location.
6, as the anode high voltage generation device of claim 1 or 3 described displays, it is characterized in that: wherein the appropriate position of this upper and lower casing is provided with a hole at least, and this device can be connected set terminals via this hole with other interlock circuit.
7, as the anode high voltage generation device of claim 1 or 3 described displays, it is characterized in that: visual actual demand between the high pressure goldleaf electric capacity in wherein main coil, a high-tension coil and the voltage multiplie and dielectric film is set, to strengthen each interelement compressive resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95106269A CN1054015C (en) | 1995-06-23 | 1995-06-23 | High voltage generator for display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95106269A CN1054015C (en) | 1995-06-23 | 1995-06-23 | High voltage generator for display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1139336A CN1139336A (en) | 1997-01-01 |
| CN1054015C true CN1054015C (en) | 2000-06-28 |
Family
ID=5075840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95106269A Expired - Fee Related CN1054015C (en) | 1995-06-23 | 1995-06-23 | High voltage generator for display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1054015C (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106529A (en) * | 1985-08-30 | 1987-03-11 | 日本胜利株式会社 | DC high voltage generator |
-
1995
- 1995-06-23 CN CN95106269A patent/CN1054015C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106529A (en) * | 1985-08-30 | 1987-03-11 | 日本胜利株式会社 | DC high voltage generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1139336A (en) | 1997-01-01 |
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