CN104467724B - The bounce frequency filter of improved structure - Google Patents
The bounce frequency filter of improved structure Download PDFInfo
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- CN104467724B CN104467724B CN201410856091.9A CN201410856091A CN104467724B CN 104467724 B CN104467724 B CN 104467724B CN 201410856091 A CN201410856091 A CN 201410856091A CN 104467724 B CN104467724 B CN 104467724B
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Abstract
The bounce frequency filter of improved structure, including metal shell, resonator, switching diode array circuit, high-voltage driving circuit and digital control circuit；Resonator forms the first working cell with switching diode array circuit and is arranged on simultaneously in the first accommodating chamber in metal shell, and high-voltage driving circuit forms the second working cell with digital control circuit and is arranged on simultaneously in the second accommodating chamber in metal shell；Also include the radio frequency filter circuit for being provided with choking-winding, high-voltage driving circuit is by radio frequency filter circuit electric signal connecting valve diode array circuit, in the 3rd accommodating chamber that radio frequency filter circuit forms the 3rd working cell and is arranged in metal shell；It is individually insulated out between first, second, third accommodating chamber three.So can not only individual screen radiofrequency signal, the noise signal and heat being also avoided that in first accommodating chamber impact to the radio frequency filter circuit and the choking-winding, substantially increases the job stability of three working cells.
Description
Technical field
The present invention relates to telecommunications field, more particularly to a kind of bounce frequency filter, the bounce frequency filter is typically installed
In the delivery outlet of the power amplifier of emitter, for effectively filtering out useless transmitting clutter frequency, and other emitters are prevented
Wireless interference signal enter local transmitter, bounce frequency filter belongs to bandpass filter.
Background technology
The powerful bounce frequency filter design of early stage is disadvantageous in that insertion loss is big, and filter effect is bad, element
Weak heat-dissipating causes working life short, and when the power of product is bigger, element heating amount is bigger, it is necessary to which electronic component is set using special
Count to radiate；Existing powerful bounce frequency filter small product size is big, and manufacturing cost is higher.Therefore, Application No.
200910040262.X, a kind of entitled patented invention of bounce frequency filter, disclosing it includes heat conduction shell, analog circuit list
Member, digital control circuit plate；The analog circuit unit includes at least two resonance modules, a switching diode array electricity
Road, a high-voltage drive, connected by coupler between multiple resonance modules, multiple resonance modules pass through respectively
The switching diode array circuit circuit, high-voltage drive are connected with the digital control circuit plate；The analog circuit list
Member and digital control circuit plate are separately positioned in different heat conduction shell cavitys.According to the description of the patent, it can be prevented
Electromagnetic interference between internal electronic element, and can reduce product height or volume, and product has excellent filter effect, and dissipates
It is hot fast, prolonged working stability degree can be kept.
Secondly, we are also concerned about Application No. 201120428296.9, entitled high-power tuning frequency hopping filter
Content disclosed by patent document, it mainly adds one group of π type filter circuit in high-voltage driving circuit, according to its specification
Description, the π types filter circuit mainly filtered out due to internal clutter letter caused by the high frequency switching of the high-voltage driving circuit
Number interference.But it have been found that because the switching frequency of the high-voltage driving circuit is only merely the resonant frequency of the resonator
Less than 1/500th, it is low-down frequency, the effect of the π types filter circuit is very limited, otherwise can influence switch speed
Degree.
The content of the invention
Above-mentioned Application No. 200910040262.X, a kind of entitled patented invention side of bounce frequency filter are tested at us
During case and products thereof, it is found that its main radio-frequency electromagnetic disturbs and derive from the resonance modules, and its described switching diode battle array
Column circuits are main pyrotoxins, and its signal for being exported of the product of this structure is also unstable, and the resonant mode
Influence of the radiofrequency signal of block to other circuits is very big, and the structure of this product is required further improvement for this, makes its high frequency
Radio frequency noise electromagnetic signal and its heat influence overall to system further reduce.
According to above-mentioned purpose, the present invention proposes a kind of bounce frequency filter of improved structure, including metal shell, is arranged on institute
State resonator, switching diode array circuit, high-voltage driving circuit and the digital control electricity that in metal shell and electric signal connects
Road；Characterized in that, the resonator forms the first working cell with the switching diode array circuit and is arranged on simultaneously
In the first accommodating chamber in the metal shell, the high-voltage driving circuit forms the second job note with the digital control circuit
Member is simultaneously arranged in the second accommodating chamber in the metal shell simultaneously；Also include the rf filtering electricity for being provided with choking-winding
Road, the high-voltage driving circuit connects the switching diode array circuit by the radio frequency filter circuit electric signal, described
In the 3rd accommodating chamber that radio frequency filter circuit forms the 3rd working cell and is arranged in the metal shell；Described first accommodates
It is individually insulated out between chamber, second accommodating chamber, the 3rd accommodating chamber three;Wherein described 3rd accommodating chamber with it is described
Left and right distribution, is spaced apart, institute between the 3rd accommodating chamber and first accommodating chamber by division board between first accommodating chamber
State division board and connect the metal shell, set the radio frequency filter circuit filter capacitor radio frequency filter circuit plate substantially with
The division board is parallel, and the choking-winding can be supported by being provided between the division board and the radio frequency filter circuit plate
Skeleton；Screen is provided with the division board positioned at the 3rd accommodating chamber side, being provided with the screen to allow
The screen hole that the skeleton passes through, the screen are positioned on the division board, and one end of the skeleton is positioned at the screen
On, the supporting plate that can support the skeleton other end is additionally provided with the side of the radio frequency filter circuit plate.
Wherein, the resonator is a kind of dress for including resonance coil and resonant capacitance and can producing resonance signal
Put；Unnecessary interference signal can be filtered out by the resonator, signal is from positioned at resonance coil one end of the resonator
The input of impedance matching box end, from the output of the impedance matching box end of the resonance coil other end of the resonator.In order to realize
Frequency hopping（Such as 20us i.e. within the very short time cycle（About 50KHz）Interior conversion resonant frequency）, because inductance can not change
Being changed into this needs capacitance variations, when frequency hopping works, when which frequency needed, just passes through two in the switching diode array
Pole pipe turns on corresponding electric capacity, allows multiple electric capacity of adaptation capacity to access resonant tank.
Wherein, the switching diode array circuit, it is one group of heavy-duty diode that can turn on the resonant capacitance,
The adjustment to the resonant capacitance of different capabilities is realized when the diode current flow of varying number or cut-off.In order to realize installation knot
Structure it is compact, further technical scheme is also possible that the resonance by the switching diode array circuit and the resonator
Electric capacity, which merges, to be arranged on same circuit board i.e. on diode circuit plate, and the diode circuit plate is located at first accommodating chamber
It is interior.Secondly, turning on the diode and leading needs electric current to turn on, and those diodes that need not temporarily turn on, then needs to add
High back-pressure, if the diode to cut-off does not add anti-high pressure, radio frequency high voltage will allow diode to damage, even if not having for the moment bad
Also can work abnormal.Therefore, the high-voltage driving circuit is mainly under the control of the digital control circuit to the switch
Diode array circuit provides the high voltage needed when the electric current needed during conducting and cut-off.The switching diode array electricity
Road, high-voltage driving circuit and digital control circuit can be separately positioned on the circuit board of one or several separation.
Wherein, what the radio frequency filter circuit mainly filtered out be may be to the high drive from the resonator direction
The radio frequency main signal that circuit is reversely sent.Because the radio-frequency power voltage of the resonator is very high, and the high pressure is driven
If disturbed by the radio-frequency voltage of several volts at the output of dynamic circuit, the high-voltage driving circuit is with regard to fragile.
According to above-mentioned technical scheme, with prior art particularly Application No. 200910040262.X patent of invention pair
Than it can be found that its beneficial has technical effect that：
1. by the first working cell of the resonator and switching diode array circuit composition is arranged on into institute
State in the first accommodating chamber and by the high-voltage driving circuit, the digital control circuit and the choking-winding, rf filtering
The main devices such as circuit are arranged on outside first accommodating chamber, so allow the cavity wall of first accommodating chamber to shield
The resonator resonant radio frequency signal and the heat that can isolate produced by the switching diode array circuit.
2. because simultaneously the high-voltage driving circuit forms the second working cell with the digital control circuit and is arranged on
In the second accommodating chamber in the metal shell, not only believe for this between the high-voltage driving circuit and the digital control circuit
Number transmission range is short so as to reduce the distortion of control signal, and due to the high-voltage driving circuit and the digital control electricity
Road is isolated entirely from first accommodating chamber, and the high-voltage driving circuit and the digital control circuit are all not readily susceptible to institute
State the influence of electromagnetism and heat caused by resonator and the switching diode array circuit, make the high-voltage driving circuit and
The operation of the digital control circuit is more stable.
3. two poles of the resonator and the switch can be suppressed by the radio frequency filter circuit and the choking-winding
Pipe oppositely transmits the radiofrequency signal of high pressure to the high-voltage driving circuit and the digital control circuit in itself, so as to protect
State high-voltage driving circuit and the digital control circuit.
4. because the 3rd accommodating chamber is kept apart between first accommodating chamber, second accommodating chamber respectively, no
Only can individual screen radiofrequency signal, the noise signal and heat being also avoided that in first accommodating chamber are to the rf filtering
Circuit and the choking-winding impact, and substantially increase the job stability of three working cells.
5. due to the filter capacitor that the radio frequency filter circuit is set radio frequency filter circuit plate substantially with the division board
It is parallel, the skeleton that can support the choking-winding is provided between the division board and the radio frequency filter circuit plate.This
Sample can not only make somebody a mere figurehead the choking-winding, be radiated also by way of the skeleton for the choking-winding, and can also reduce institute
State influence of the choking-winding to the radio frequency filter circuit.
6. due to being provided with screen on the division board positioned at the 3rd accommodating chamber side, it is provided with the screen
The screen hole that the skeleton passes through can be allowed, the screen is positioned on the division board, and one end of the skeleton is positioned at institute
State on screen.Positioning so is provided to the skeleton of each support choking-winding by means of the screen, reduction used
Releasing in journey is damaged.Certainly, according to the prompting of the program, it is contemplated that the screen can also position the gold
Belong on housing.
7. the support of the skeleton other end can be supported due to being additionally provided with the side of the radio frequency filter circuit plate
Plate.Positioning so is provided to the skeleton of each support choking-winding by means of the supporting plate, during reduction use
Release or damage.Certainly, according to the prompting of the program, it is contemplated that the supporting plate can also position the metal
On housing.Because one end of the skeleton has been positioned respectively by the screen, be this supporting plate structure just
Can be with relatively easy point, the supporting plate can be arranged on below the skeleton end or be located above the skeleton.
Wherein, first accommodating chamber and second accommodating chamber, can be two cavitys in same shell, also may be used
To be to split two cavitys in different metal housing.
Further technical scheme is also possible that the diode circuit plate for setting the switching diode array circuit abuts
On the heat-conducting plate being connected in the side wall of the metal shell or the division board or with the metal shell.So described switch
The heat that diode in diode array circuit is sent out, can outwards it be distributed by means of the metal shell, or by means of institute
State division board or the heat-conducting plate is delivered on the metal shell.Secondly, the 3rd accommodating chamber and first accommodating chamber
Between left and right distribution, the transfer process of circuit signal can be made compact and become the overall volume of the whole bounce frequency filter
It is small.
Further technical scheme be also possible that under the diode of the switching diode array circuit end be welded on
On the heat-conducting plate being connected on the metal shell or the division board or with the metal shell.Wherein, under the diode
End, refer to that the diode in the switching diode array circuit is in the end of same polarity in circuit, such as be in together
The end of negative or positive electrode.The scheme being welded on for this using the lower ground end on same plate body, can not only be by means of institute
State metal shell or the division board or the heat-conducting plate and transmit driving electric signal for them so as to save space and connection material
Material, and it is directly diode radiating that can also utilize the metal shell or the division board or the heat-conducting plate.
Further technical scheme be also possible that on the division board or set on the heat-conducting plate it is fluted, it is described
Under the diode of switching diode array circuit end be welded in the groove or close to the groove, so not only can be with
Convenient welding operates and welding is reliable.
Further technical scheme is also possible that second accommodating chamber is located at the 3rd accommodating chamber and held with described first
Receive below chamber or second accommodating chamber and the 3rd accommodating chamber are located at below first accommodating chamber.So can be big
The overall volume of the metal shell and heat-insulated is reduced greatly.Also therefore, further technical scheme is also possible that the described 3rd holds
Chamber of receiving so further strengthens isolation effect between second accommodating chamber and first accommodating chamber.
Further technical scheme is also possible that the middle section of the resonance coil of the resonator is provided with earthing rod,
The sub- resonance coil on the earthing rod both sides intercouples.The middle section, at least it is not only to refer to the resonance coil
Centre position, can with it is to the left can also be more to the right.The earthing rod is the ground connection for referring to connect the bounce frequency filter
Line（Zero potential）An electrode.By the earthing rod, the resonance coil is actually set to be divided into two mutual as two
The sub- resonance coil of coupling is strong so as to be not only simple in structure and handle the ability of radiofrequency signal.The earthing rod more slightly can
Enough conduct bigger electric current and the resonance coil can be radiated.
Further technical scheme is also possible that the earthing rod is connected to the ground connection of the switching diode array circuit
End.It is attached to the ground plane of the UNICOM of earth terminal institute of switching diode array.
Further technical scheme is also possible that metal shell and second accommodating chamber where first accommodating chamber
The metal shell at place is provided separately.
Further technical scheme is also possible that at least is provided with radiating on a lateral surface of the metal shell
Asperities or fin.Further technical scheme is also possible that at least outside one of them where first accommodating chamber
The inside asperities or inner fin of radiating are provided with the inner side of side sidewall bodies.So can be by means of described inner-concave
Burr or inner fin enhancing heat-sinking capability.
Because the present invention has These characteristics and advantage, be may apply to for this on bounce frequency filter.
Brief description of the drawings
Fig. 1 is the signal control flow schematic diagram using bounce frequency filter of the present invention；
Fig. 2 is the structural representation using bounce frequency filter of the present invention；
Fig. 3 is Fig. 2 overlooking the structure diagram；
Fig. 4 is the one of which structural representation of the division board；
Fig. 5 is the structural representation of the screen.
Embodiment
The structure of application bounce frequency filter of the present invention is further described below in conjunction with the accompanying drawings.
As illustrated, a kind of bounce frequency filter 100 of improved structure, its RF operating frequency is in more than 30MHz, including gold
Category housing 1, the resonance coil 51 being arranged in the metal shell 1, it is provided with switching diode array circuit and resonant capacitance
Diode circuit plate 55, choking-winding 43, the radio frequency filter circuit plate 41 for being provided with filter capacitor, high-voltage driving circuit 31 and
Digital control circuit 32, wherein, the resonance coil 51 mainly forms resonator with resonant capacitance, and described filter capacitor is with gripping
Streamline circle 43 mainly forms radio frequency filter circuit.The resonator, switching diode array circuit, radio frequency filter circuit, high pressure
Between drive circuit 31 and digital control circuit 32 sequentially shown in signal control flow chart as accompanying drawing 1.
Wherein, the metal shell 1 includes left and right side plate（12、13）, cover plate 11, bottom plate 18, central dividing plate 14 and foreboard
Body 16, rear plate body 17, in addition to it is arranged on the left and right side plate（12、13）Between division board 15, the division board 15 is by institute
State the space on central dividing plate 14 and be divided into left and right two independent spaces i.e. the first accommodating chamber 21 and the 3rd accommodating chamber 23, institute
Central dividing plate 14 is stated by the left and right side plate（12、13）Between space be divided into three independent up and down chambers, i.e., except described
Also include a second independent accommodating chamber 22 outside one accommodating chamber 21 and the 3rd accommodating chamber 23.Again it should be noted that, three
Each group is independent between individual cavity, does not imply that and utterly separates between them, also has at least between them and allow electric lead to wear
The cable-through hole crossed, but through the cable-through hole can be closed using fluid sealant after the electric lead.
Wherein, the resonance coil 51 is screw type structure, two electrode tips of the resonance coil 51（52、53）Point
Other electric signal is connected to the switching diode array circuit.The electrode tip（52、53）Tool on the resonance coil 51
Body connection outlet position, can specifically it be determined according to the size of resonant frequency in debugging.The resonator is opened with described
Diode array circuit is closed to form the first working cell and be arranged in the first accommodating chamber 21 in the metal shell 1 simultaneously,
I.e. described resonance coil 51 is located in first accommodating chamber 21 with the diode circuit plate 55.In the resonance coil 51
Centre region has a thicker earthing rod 54, the earthing rod 54 pass through the diode circuit plate 55 and with diode circuit plate 55
On switching diode zero potential line electrical connection.So described not only water conservancy diversion and the radiating of earthing rod 54, both sides also form two
Independent sub- resonance coil（501、502）, and the two described sub- resonance coils（501、502）Connect and intercouple, from
And be not only simple in structure and handle radiofrequency signal ability it is strong.Wherein, the middle section, be not at least only refer to it is described
The centre position of resonance coil 51, can with it is to the left can also be more to the right.
The high-voltage driving circuit 31 forms the second working cell with the digital control circuit 32 and is arranged on institute simultaneously
State on the second circuit board 30 in the second accommodating chamber 22 in metal shell 1；One end of the high-voltage driving circuit 31 is by leading
Line is connected through the central dividing plate 14 with the radio frequency filter circuit electric signal, the other end and the electricity of digital control circuit 32
Signal connects.Due to keeping apart between first accommodating chamber 21 and second accommodating chamber 22, for resonator this described and institute
Interference magnetic field and heat caused by switching diode array circuit are stated without interference with the high-voltage driving circuit 31 and the number
The work of word control circuit 32, greatly improve the overall work stability of bounce frequency filter 100.
Wherein, the resonator is a kind of device that can produce resonance signal, can be filtered out not by the resonator
Necessary external interference signals, external signal inputs from positioned at the impedance matching box end 61 of described one end of resonance coil 51, from institute
The impedance matching box end 62 for stating the other end of resonance coil 51 exports.The high-voltage driving circuit 31 is mainly described digital control
Under the control of circuit 32 high-voltage signal and current signal are provided to the switching diode array circuit.The switching diode battle array
Column circuits, high-voltage driving circuit 31 and digital control circuit 32 can be separately positioned on the circuit board of one or several separation.
Wherein, further technical scheme is also possible that first accommodating chamber 21 and second accommodating chamber 22, can be with
It is two cavitys in same shell or splits two cavitys in different metal housing.
Further technical scheme is also possible that the rf filtering electricity for also including being provided with choking-winding 43 and filter capacitor
Road, filter capacitor are arranged on the radio frequency filter circuit plate 41, and the radio frequency filter circuit forms the 3rd working cell and set
Put in the 3rd accommodating chamber 23 in the metal shell 1, the 3rd accommodating chamber 23 respectively with first accommodating chamber 21, institute
State and keep apart between the second accommodating chamber 22, pass through the 3rd work between first working cell and second working cell
Realize that electric signal connects as unit, wherein, between the filter capacitor of the radio frequency filter circuit and the high-voltage driving circuit 31
Electric signal connects, and electric signal connects between the choking-winding 43 and the switching diode array circuit.Due to the resonance
Device is a kind of device that can produce resonance signal, and the resonance signal and noise signal of itself are very easy to feed back to described
Two working cells and then the work for influenceing second working cell.Therefore, according to the program, due in first job note
First that the 3rd working cell is provided between second working cell, the 3rd working cell can not only transmit institute
State the drive signal of high-voltage driving circuit 31, and can also suppress the resonator and the switching diode in itself oppositely to
The radio frequency high voltage signal that the high-voltage driving circuit 31 and the digital control circuit 32 transmit.Secondly as the described 3rd
Accommodating chamber 23 is kept apart between first accommodating chamber 21, second accommodating chamber 22 respectively, can not only individual screen penetrate
Frequency signal, the noise signal and heat being also avoided that in first accommodating chamber 21 impact to the radio frequency filter circuit,
Substantially increase the job stability of the 3rd working cell.
Further technical scheme is also possible that as shown in Figures 2 and 3 the 3rd accommodating chamber 23 is held with described first
Receive left and right distribution between chamber 21, be spaced apart between the 3rd accommodating chamber 23 and first accommodating chamber 21 by division board 15,
The division board 15 connects the metal shell 1 so as to conduct heat, the division board 15 can with the metal shell 1
The integrated molding of central dividing plate 14, can also be separately manufactured.The diode circuit plate of the switching diode array circuit is set
55 abut against in the side wall of the division board 15, naturally it is also possible to are directly abutted against described in the place of the first accommodating chamber 21
On metal shell 1；Either, the heat-conducting plate being connected with the metal shell 1 is set in first accommodating chamber 21（In figure not
Draw）, the diode circuit plate 55 abutted against on the heat-conducting plate.Two poles in so described switching diode array circuit
Guan Suofa heat, it can be delivered to by means of the division board 15 or the heat-conducting plate on the metal shell 1.
Further technical scheme is also possible that left and right point between the 3rd accommodating chamber 23 and first accommodating chamber 21
Cloth, it is spaced apart between the 3rd accommodating chamber 23 and first accommodating chamber 21 by division board 15, the division board 15 connects
The metal shell 1, the lower ground end of the switching diode array circuit are welded on the institute where first accommodating chamber 21
State on metal shell 1 or the heat-conducting plate that is connected on the division board 15 or with the metal shell 1 on.Wherein, the switch two
The lower ground end of pole pipe array circuit, refer to that the diode in the switching diode array circuit is in same polarity in circuit
End, such as be in the end of negative or positive electrode together.The scheme on same plate body is welded on using same polarity end for this, no
Only electric signal can be transmitted so as to save space and connecting material for them by means of the division board 15 or the heat-conducting plate,
And it is directly diode radiating that can also utilize the division board 15 or the heat-conducting plate.
Further technical scheme is also possible that as shown in figure 4, being set on the division board 15 or on the heat-conducting plate
Fluted 150, the lower ground end of the switching diode array circuit is welded in the groove 150 or close to the groove
150.It so can not only be operated with convenient welding but also welding is reliable.
Relative position relation between three cavitys, in addition to the above described configuration, further technical scheme is also possible that
Second accommodating chamber 22 is located at below first accommodating chamber 21 with the 3rd accommodating chamber 23, can also so subtract significantly
The overall volume of few metal shell 1 and heat-insulated.Further technical scheme is also possible that the 3rd accommodating chamber 23 is located at
It is to be not drawn into this figure because this is relatively simple for structure between second accommodating chamber 22 and first accommodating chamber 21.
Further technical scheme is also possible that the radio frequency filter circuit plate 41 is substantially parallel with the division board 15,
The skeleton 44 of the choking-winding 43 can be supported by being provided between the division board 15 and the radio frequency filter circuit plate 41.
The choking-winding 43 can not only be so maked somebody a mere figurehead, is that the choking-winding 43 radiates also by way of the skeleton 44, but also
Influence of the choking-winding 43 to the whole radio frequency filter circuit can be reduced.
Further technical scheme is also possible that to be set on the division board 15 positioned at the side of the 3rd accommodating chamber 23
There is screen 45, as shown in figure 5, being provided with the screen hole 451 that the skeleton 44 can be allowed to pass through, the screen on the screen 45
45 are positioned on the division board 15, and one end of the skeleton 44 is positioned in screen hole 451 set on the screen 45.
Positioning so is provided to the skeleton 44 of each support choking-winding 43 by means of the screen 45, during reduction use
Release or damage.Certainly, according to the prompting of the program, it is contemplated that the screen 45 can also be positioned at described
On the metal shell 1 where three accommodating chamber 23.
Further technical scheme, which is also possible that, to be additionally provided with and can support in the side of the radio frequency filter circuit plate 41
The supporting plate 42 of the other end of skeleton 44.So by means of the supporting plate 42 to each support choking-winding 43
Skeleton 44 gives end positioning, releasing or damaging during reduction use.Certainly, according to the prompting of the program, it is contemplated that
, the supporting plate 42 can also be positioned on the metal shell 1.Because one end of the skeleton 44 passes through the grid
Plate 45 is positioned respectively, is the relatively easy point of structure can of this supporting plate 42, and the supporting plate 42 can be set
Below the end of skeleton 44 or it is located above the skeleton 44.
Further technical scheme is also possible that at least on the lateral surface of the upper cover plate 11 of the metal shell 1
It is provided with the asperities or fin of radiating（It is not drawn into figure）, the asperities of these radiatings or fin can also enter one certainly
Step is distributed on the whole lateral surface of the metal shell 1.Further technical scheme is also possible that at least to be held described first
Receive the inside that radiating is provided with one of outside side wall body such as inner side of upper cover plate 11 or left plate 12 where chamber 21
Asperities or inner fin, so it can strengthen heat-sinking capability by means of described inside asperities or inner fin.
Claims (12)
1. the bounce frequency filter of improved structure, including metal shell, be arranged in the metal shell and electric signal connection it is humorous
Shake device, switching diode array circuit, high-voltage driving circuit and digital control circuit；Characterized in that, the resonator and institute
State the first accommodating chamber that switching diode array circuit forms the first working cell and is arranged in the metal shell simultaneously in,
The high-voltage driving circuit forms the second working cell with the digital control circuit and is arranged on simultaneously in the metal shell
The second accommodating chamber in；Also include the radio frequency filter circuit for being provided with choking-winding, the high-voltage driving circuit is penetrated by described
Frequency filter circuit electric signal connects the switching diode array circuit, and the radio frequency filter circuit forms the 3rd working cell simultaneously
It is arranged in the 3rd accommodating chamber in the metal shell；First accommodating chamber, the second accommodating chamber, the 3rd accommodating chamber three it
Between be individually insulated out；Between wherein described 3rd accommodating chamber and first accommodating chamber left and right distribution, the 3rd accommodating chamber with
It is spaced apart between first accommodating chamber by division board, the division board connects the metal shell, sets the radio frequency to filter
The radio frequency filter circuit plate of the filter capacitor of wave circuit is substantially parallel with the division board, is filtered in the division board and the radio frequency
The skeleton of the choking-winding can be supported by being provided between wave circuit plate；In the isolation positioned at the 3rd accommodating chamber side
Screen is provided with plate, the screen hole that the skeleton can be allowed to pass through is provided with the screen, the screen is positioned at described
On division board, one end of the skeleton is positioned on the screen, and energy is additionally provided with the side of the radio frequency filter circuit plate
Enough support the supporting plate of the skeleton other end.
2. bounce frequency filter according to claim 1, it is characterised in that by the switching diode array circuit with it is described
The resonant capacitance of resonator, which merges, to be arranged on same circuit board i.e. on diode circuit plate, and the diode circuit plate is located at institute
State in the first accommodating chamber.
3. bounce frequency filter according to claim 1, it is characterised in that the two of the switching diode array circuit are set
Pole pipe circuit board abuts against the heat-conducting plate being connected in the side wall of the metal shell or the division board or with the metal shell
On.
4. bounce frequency filter according to claim 1, it is characterised in that the diode of the switching diode array circuit
Lower ground end is welded on the heat-conducting plate being connected on the metal shell or the division board or with the metal shell.
5. bounce frequency filter according to claim 4, it is characterised in that set on the division board or on the heat-conducting plate
Be equipped with groove, under the diode of the switching diode array circuit end be welded in the groove or close to described recessed
Groove.
6. bounce frequency filter according to claim 1, it is characterised in that second accommodating chamber accommodates positioned at the described 3rd
Below chamber and first accommodating chamber or second accommodating chamber and the 3rd accommodating chamber are located at first accommodating chamber
Below.
7. bounce frequency filter according to claim 1, it is characterised in that the 3rd accommodating chamber accommodates positioned at described second
Between chamber and first accommodating chamber.
8. according to any described bounce frequency filter of claim 1 to 7, it is characterised in that the resonance coil of the resonator
Middle section is provided with earthing rod, and the sub- resonance coil on the earthing rod both sides intercouples.
9. bounce frequency filter according to claim 8, it is characterised in that the earthing rod is connected to the switching diode
The earth terminal of array circuit.
10. according to any described bounce frequency filter of claim 1 to 7, it is characterised in that the gold where first accommodating chamber
Category housing is provided separately with the metal shell where second accommodating chamber.
11. according to any described bounce frequency filter of claim 1 to 7, it is characterised in that at least the one of the metal shell
The asperities or fin of radiating are provided with individual lateral surface.
12. according to any described bounce frequency filter of claim 1 to 7, it is characterised in that at least in the first accommodating chamber institute
One of outside side wall body inner side on be provided with the inside asperities or inner fin of radiating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410856091.9A CN104467724B (en) | 2014-12-29 | 2014-12-29 | The bounce frequency filter of improved structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410856091.9A CN104467724B (en) | 2014-12-29 | 2014-12-29 | The bounce frequency filter of improved structure |
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| CN104467724A CN104467724A (en) | 2015-03-25 |
| CN104467724B true CN104467724B (en) | 2017-11-14 |
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