CN108990405A - A kind of portable power amplifier with function of shielding - Google Patents
A kind of portable power amplifier with function of shielding Download PDFInfo
- Publication number
- CN108990405A CN108990405A CN201811134923.0A CN201811134923A CN108990405A CN 108990405 A CN108990405 A CN 108990405A CN 201811134923 A CN201811134923 A CN 201811134923A CN 108990405 A CN108990405 A CN 108990405A
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- power amplifier
- fixedly connected
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- shielding
- function
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/0017—Casings, cabinets or drawers for electric apparatus with operator interface units
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
- H05K5/0234—Feet; Stands; Pedestals, e.g. wheels for moving casing on floor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0247—Electrical details of casings, e.g. terminals, passages for cables or wiring
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/006—Casings specially adapted for signal processing applications, e.g. CATV, tuner, antennas amplifier
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Signal Processing (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses a kind of portable power amplifier with function of shielding, including power amplifier ontology, rear side is connected with push-pull rod above power amplifier ontology, it is intermediate above power amplifier ontology to be connected with handle, it is opened up on front side of power amplifier ontology fluted, it is provided with above inside grooves below display screen and is provided with adjusting knob, lower section is provided with charge port and electricity jack on front side of power amplifier ontology, front side bipod is connected with supporting leg below power amplifier ontology, rear side bipod is connected with universal wheel below power amplifier ontology, power amplifier body internal surface is connected with insulating protective layer, insulating protective layer inner surface is connected with composite shielding layer, composite shielding layer inner surface is connected with protective layer, composite shielding layer is connect by conducting wire with the amplifier module inside protective layer, backup power source is provided with below amplifier module；The function that it may be implemented shielding outer signals and is convenient for carrying.
Description
Technical field
The present invention relates to power amplifier fields, more specifically to a kind of portable power with function of shielding
Amplifier.
Background technique
Power amplifier referred to as " power amplifier " refers under the conditions of given distortion rate, can generate maximum power output to drive
The amplifier of a certain load (such as loudspeaker).Power amplifier plays the pivot of " tissue, coordination " in entire sound system
Knob effect, can dominating whole system to a certain extent provide good sound quality output.
Power amplifier in the prior art is mainly use for laboratory power amplifier or home audio power amplifier, function
Rate amplifier volume itself is larger, it has not been convenient to carry and carry, with other equipment simultaneously in use, extraneous electromagnetic signal is held
Certain interference is easily generated to power amplifier, and then reduces the effect of experiment or amusement.
Summary of the invention
1. technical problems to be solved
Aiming at the problems existing in the prior art, problem is as follows:
(1) outer signals easily generate interference to power amplifier；
(2) inconvenient to carry.
2. technical solution
To solve the above problems, the present invention adopts the following technical scheme that.
A kind of portable power amplifier with function of shielding, including power amplifier ontology, the power amplifier
Rear side slidably connects push-pull rod above ontology, and the power amplifier ontology top is intermediate to be fixedly connected with handle, the function
It opens up fluted on front side of rate amplifier ontology, display screen, interval below the inside grooves is provided with above the inside grooves
Several adjusting knobs are evenly provided with, lower section is provided with charge port and electricity jack on front side of the power amplifier ontology, institute
It states electricity jack to be arranged on the right side of charge port, front side bipod is fixedly connected with supporting leg below the power amplifier ontology, described
Rear side bipod is connected with universal wheel below power amplifier ontology, and the power amplifier body internal surface is fixedly connected with insulation
Protective layer, the insulating protective layer inner surface are fixedly connected with composite shielding layer, and the composite shielding layer inner surface is fixedly connected
There is protective layer, the protective layer is internally provided with conducting wire, and the composite shielding layer and conducting wire one end are electrically connected, the combined screen
It covers layer and is internally provided with amplifier module, the conducting wire other end and amplifier module are electrically connected, setting below the amplifier module
There is backup power source.
Preferably, the display screen and adjusting knob and backup power source are electrically connected, in the display screen and adjusting knob
Surface is fixedly connected with electromagnetic sealing liner, and electromagnetic sealing liner outer surface is fixedly connected with composite shielding layer.
Preferably, the adjusting knob includes handle, and connecting rod is fixedly connected with below the handle, is slided below the connecting rod
It is dynamic to be connected with brush.
Preferably, the connecting rod inner upper is fixedly connected with spring, is fixedly connected below the spring with brush bottom.
Preferably, the connecting rod outer surface is fixedly connected with sliding block, and the brush inner surface offers sliding rail, the sliding block
It is matched with sliding rail.
3. beneficial effect
Compared with the prior art, the present invention has the advantages that
(1) present invention by power amplifier body interior be arranged composite shielding layer and, and by conducting wire by composite shielding
Layer is electrically connected with the amplifier module inside power amplifier, and when using power amplifier, composite shielding layer is powered, and then right
Extraneous electromagnetic signal generates shielding action, interferes less with, can be with by the way that insulating protective layer is arranged in composite shielding layer outer surface
It protects power amplifier that electric leakage accident does not occur, by the way that protective layer is arranged in composite shielding layer inner surface, power can be protected to put
Amplifier module inside big device, so that solving outer signals in common power amplifier easily generates interference to power amplifier
Problem.
(2) present invention above power amplifier ontology by being arranged push-pull rod, handle and under power amplifier ontology
The supporting leg and universal wheel being just arranged, can be convenient transhipment, by being arranged display screen and adjusting knob in groove, can subtract
Few probability to collide in transport process, and then display screen and knob are protected, it is standby by being arranged inside power amplifier
With power supply and charge port, amplifier module can be powered by backup power source, it is convenient to carry out, to solve common
Problem inconvenient to carry in power amplifier.
Detailed description of the invention
Fig. 1 is the structural schematic diagram outside the present invention；
Fig. 2 is the structural schematic diagram inside the present invention；
Fig. 3 is the structural schematic diagram of groove of the present invention；
Fig. 4 is the structural schematic diagram of this practical adjusting knob.
Figure label explanation:
1- power amplifier ontology；2- push-pull rod；3- handle；4- groove；5- display screen；6- adjusting knob；7- charge port；8- is inserted
Power port；9- supporting leg；10- universal wheel；11- insulating protective layer；12- composite shielding layer；13- protective layer；14- conducting wire；15- amplification
Component；16- backup power source；17- electromagnetic sealing liner；18- handle；19- connecting rod；20- brush；21- spring；22- sliding block；23-
Sliding rail.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention；Technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description；Obviously；Described embodiments are only a part of the embodiments of the present invention；Instead of all the embodiments.It is based on
Embodiment in the present invention；It is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment；It shall fall within the protection scope of the present invention.
Please refer to Fig. 1-4, a kind of portable power amplifier with function of shielding, including power amplifier ontology 1, function
1 top rear side of rate amplifier ontology slidably connects push-pull rod 2, and 1 top of power amplifier ontology is intermediate to be fixedly connected with handle
3, fluted 4 are opened up on front side of power amplifier ontology 1, and 4 inner upper of groove is provided with display screen 5,4 lower inside interval of groove
Several adjusting knobs 6 are evenly provided with, 1 front side lower section of power amplifier ontology is provided with charge port 7 and electricity jack 8, inserts
The setting of power port 8 is fixedly connected with supporting leg 9, power amplification in 7 right side of charge port, 1 lower section front side bipod of power amplifier ontology
1 lower section rear side bipod of device ontology is connected with universal wheel 10, and 1 inner surface of power amplifier ontology is fixedly connected with insulating protective layer
11,11 inner surface of insulating protective layer is fixedly connected with composite shielding layer 12, and 12 inner surface of composite shielding layer is fixedly connected with protection
Layer 13, protective layer 13 are internally provided with conducting wire 14, and composite shielding layer 12 and 14 one end of conducting wire are electrically connected, in composite shielding layer 12
Portion is provided with amplifier module 15, and 14 other end of conducting wire and amplifier module 15 are electrically connected, are provided with below amplifier module 15 spare
Power supply 16.
Display screen 5 and adjusting knob 6 and backup power source 16 are electrically connected, display screen 5 and the fixed company of 6 inner surface of adjusting knob
It is connected to electromagnetic sealing liner 17, electromagnetic sealing pads 17 outer surfaces and is fixedly connected with composite shielding layer 12, serves as a contrast by electromagnetic sealing
The elasticity of pad 17 can more effectively cooperate with composite shielding layer 12, prevent external electromagnetic signal from generating to power amplifier dry
It disturbs,
Adjusting knob 6 includes handle 18, is fixedly connected with connecting rod 19 below handle 18, slidably connects brush below connecting rod 19
20, by pressing handle 18 connecting rod 19 is connect with brush 20, and then be just able to rotate adjusting knob 6, vibration when preventing from carrying
Bring maloperation, 19 inner upper of connecting rod are fixedly connected with spring 21, and 21 lower section of spring is fixedly connected with 20 bottom of brush, leads to
The handle 18 depressed can be resetted by crossing spring 21, and 19 outer surface of connecting rod is fixedly connected with sliding block 22,20 inner surface of brush
Sliding rail 23 is offered, sliding block 22 is matched with sliding rail 23, by the cooperation of sliding block 22 and sliding rail 23 to realize connecting rod 19 and brush
Sliding between 20, convenient for passing through the rotation of 18 control brush 20 of handle.
Working principle: the first step, indoors in use, plug wire head is inserted at electricity jack 8, amplifier module 15 is connected, multiple
It closes shielded layer 12 to be connected by conducting wire 14, and then certain shielding action is generated to extraneous electromagnetic signal, be arranged in combined screen
The insulating protective layer 11 for covering 12 outer surface of layer can prevent electric leakage accident to protecting outside power amplifier, setting
The amplifier module 15 inside power amplifier ontology 1 can be protected in the protective layer 13 of 12 inner surface of composite shielding layer,
Make interior surface that protrusion occur due to setting display screen 5 and adjusting knob 6, passes through the table in display screen 5 and adjusting knob 6
Face be arranged electromagnetic sealing pad 17 can to the part carry out again electromagnetic signal shield, second step, if desired go out carry or
In use, can first be charged to the backup power source 16 being arranged in inside power amplifier ontology 1 by charge port 7, it is full of
By 2 pull-up of push-pull rod after electricity, the universal wheel 10 of setting can be convenient user and transport power amplifier, and be arranged in power amplification
The supporting leg 9 of 1 lower section front side of device ontology can increase the frictional force with ground again, prevent from moving when in use, work as needs
When adjustment parameter, the handle 18 in adjusting knob 6, compressed spring 21 can be first pressed, so that being arranged on connecting rod 19
Sliding block 22, which enters, is arranged in the sliding rail 23 of 20 inner surface of brush, can by rotating handle 18 come the brush 20 of rotating inner part,
After having adjusted, the spring 21 inside connecting rod 19 is set and is resetted；In addition, the handle 3 of setting can be convenient user and put to power
Big device is carried, and by the way that display screen 5 and adjusting knob 6 to be arranged in groove 4 in the power amplifiers, can transported
The probability to collide is reduced in journey.
Composite shielding layer 12 is to prepare zinc-manganese iron clad metal sheet using microwave sintering method, using microwave in high band
Microwave energy, is directly converted to the thermal energy of material itself by the frequency of 2450MHz, and not only making heating, more rapidly sintering temperature is low, and
And it is more evenly fine and close, so that electromagnet shield effect is substantially increased, the magnetic shielding material rear substrate in-situ metal oxygen of secondary hardening
The metal screen layer and zinc-manganese iron metal composite oxide two parts of change form, wherein metal oxide and the good knot of binder
Closing characteristic can ensure that subsequent electroplated layer has excellent bond strength；It can be assigned doped with the composite electrolyte of cobalt nitrate and nickel nitrate
While giving the iron-based material of zinc-manganese advantageous weatherability, the magnetic conductivity of material, the Magnetic Shielding Effectiveness of strengthening material are improved.Tool
Body preparation is as follows: embodiment 1
The preparation method of electromagnetic shielding material the following steps are included:
Step 1, configuration oxidation trough electrolyte, are added 0.5 part of cobalt nitrate, 0.1 part of nickel nitrate, 3 parts of silicon in 100 parts of deionized waters
Sour sodium and 9 parts of calgons, are ultrasonically treated 10min at room temperature, obtain evenly dispersed electrolyte；
Step 2 clamps the manganese iron clad metal sheet of quasi- processing by frock clamp, is subsequently placed in the oxygen equipped with above-mentioned electrolyte
Change in slot, and as anode, using stainless steel substrates as cathode, make pulse power supply carries out differential arc oxidation；
Step 3, oxidation process crossing current setting average current density 5A/dm2, frequency 1000Hz, 160 μ s of pulse width, oxygen
Change time 5min, oxidation terminates to form one layer of compact metal shielded layer in composition metal plate surface:
Clad metal sheet after step 3 micro-arc oxidation treatment is placed in rinsing bowl and washes by step 4, washing time 1min,
15 DEG C of washing temperature；
Clad metal sheet after above-mentioned washing is placed in solidification drying unit, 240 DEG C of drying temperature, drying time by step 5
8min, the electromagnetic shielding material after being dried.
The zinc-manganese iron clad metal sheet the preparation method is as follows:
6 parts of zinc oxide, 2 parts of manganese oxide, 12 parts of iron oxide are uniformly mixed by step 1 under mechanical stirring, are placed in sintering furnace
Pre-burning 100min at 800 DEG C is down to room temperature and obtains being pre-sintered mixture；
0.2 part of tungsten oxide and 1 part of molybdenum oxide and 8 parts of deionized waters are added into above-mentioned pre-sintering mixture for step 2, are placed in
It is sanded in sand mill, stirring is slurried；
Above-mentioned slurry progress mist projection granulating is obtained moistening among dry tack free with good mobility and dispersibility by step 3
Particle mixture；
Step 4, to above-mentioned particle mixture be added 1 part of poly (vinyl alcohol) binder, dry-pressing at sheet standard sample material；
Then standard sample is placed in saggar by step 5, be put into industrial microwave roller way kiln and carry out microwave sintering, be sintered function
Rate controls the energy consumption in 70 KW, is promoted with the speed of 2m/h；
Step 6 carries out dumping processing at 250 DEG C, and 1250 DEG C of Carbon monoxide reduction sintering, heat preservation sintering 1.5 is small at high temperature
When continuous sintering standard sample material drop to room temperature with 300 DEG C/h using the cooling product of nitrogen protection and obtain zinc-manganese iron composition metal
Plate.
Embodiment 2
Step 1, configuration oxidation trough electrolyte, are added 0.4 part of cobalt nitrate, 0.1 part of nickel nitrate, 3 parts of silicon in 100 parts of deionized waters
Sour sodium and 9 parts of calgons, are ultrasonically treated 10min at room temperature, obtain evenly dispersed electrolyte；Remaining step is the same as implementation
Example 1.
Embodiment 3
Step 1, configuration oxidation trough electrolyte, are added 0.3 part of cobalt nitrate, 0.1 part of nickel nitrate, 3 parts of silicon in 100 parts of deionized waters
Sour sodium and 9 parts of calgons, are ultrasonically treated 10min at room temperature, obtain evenly dispersed electrolyte；Remaining step is the same as implementation
Example 1.
Embodiment 4
Step 1, configuration oxidation trough electrolyte, are added 0.2 part of cobalt nitrate, 0.1 part of nickel nitrate, 3 parts of silicon in 100 parts of deionized waters
Sour sodium and 9 parts of calgons, are ultrasonically treated 10min at room temperature, obtain evenly dispersed electrolyte；Remaining step is the same as implementation
Example 1.
Embodiment 5
Step 1, configuration oxidation trough electrolyte, are added 0.1 part of cobalt nitrate, 0.1 part of nickel nitrate, 3 parts of silicon in 100 parts of deionized waters
Sour sodium and 9 parts of calgons, are ultrasonically treated 10min at room temperature, obtain evenly dispersed electrolyte；Remaining step is the same as implementation
Example 1.
Embodiment 6
Step 1, configuration oxidation trough electrolyte, are added 0.6 part of cobalt nitrate, 0.1 part of nickel nitrate, 3 parts of silicon in 100 parts of deionized waters
Sour sodium and 9 parts of calgons, are ultrasonically treated 10min at room temperature, obtain evenly dispersed electrolyte；Remaining step is the same as implementation
Example 1.
Embodiment 7
Step 1, configuration oxidation trough electrolyte, are added part cobalt nitrate, 0.7 part of nickel nitrate, 3 parts of silicic acid in 100 parts of deionized waters
Sodium and 9 parts of calgons, are ultrasonically treated 10min at room temperature, obtain evenly dispersed electrolyte；Remaining step is the same as embodiment 1.
Embodiment 8
Step 1, configuration oxidation trough electrolyte, are added 0.8 part of cobalt nitrate, 0.1 part of nickel nitrate, 3 parts of silicon in 100 parts of deionized waters
Sour sodium and 9 parts of calgons, are ultrasonically treated 10min at room temperature, obtain evenly dispersed electrolyte；Remaining step is the same as implementation
Example 1.
Embodiment 9
Step 1, configuration oxidation trough electrolyte, are added 0.9 part of cobalt nitrate, 0.1 part of nickel nitrate, 3 parts of silicon in 100 parts of deionized waters
Sour sodium and 9 parts of calgons, are ultrasonically treated 10min at room temperature, obtain evenly dispersed electrolyte；Remaining step is the same as implementation
Example 1.
Embodiment 10
Step 1, configuration oxidation trough electrolyte, are added 1 part of cobalt nitrate, 0.1 part of nickel nitrate, 3 parts of silicic acid in 100 parts of deionized waters
Sodium and 9 parts of calgons, are ultrasonically treated 10min at room temperature, obtain evenly dispersed electrolyte；The same embodiment of remaining step
1。
Reference examples 1
It is with 1 difference of embodiment: in electromagnetic shielding material preparation step 1, cobalt nitrate be not added as electrolyte, remaining
Step is identical with embodiment 1.
Reference examples 2
It is with 1 difference of embodiment: in electromagnetic shielding material preparation step 1, nickel nitrate be not added as electrolyte, remaining
Step is identical with embodiment 1.
Reference examples 3
Be with 1 difference of embodiment: in electromagnetic shielding material preparation step 1, sodium metasilicate and calgon quality proportioning are
1:1, remaining step are identical with embodiment 1.
Reference examples 4
Be with 1 difference of embodiment: in electromagnetic shielding material preparation step 1, sodium metasilicate and calgon quality proportioning are
3:1, remaining step are identical with embodiment 1.
Reference examples 5
It is with 1 difference of embodiment: in zinc-manganese iron clad metal sheet preparation step 1, uses two-component manganese oxide and iron oxide
As premix, remaining step is identical with embodiment 1.
Reference examples 6
It is with 1 difference of embodiment: in zinc-manganese iron clad metal sheet preparation step 1, uses two-component zinc oxide and iron oxide
As premix, remaining step is identical with embodiment 1.
Reference examples 7
It is with 1 difference of embodiment: in zinc-manganese iron clad metal sheet preparation step 1, does not add iron oxide mixing；Remaining step
Suddenly identical with embodiment 1.
Reference examples 8
It is with 1 difference of embodiment: in zinc-manganese iron clad metal sheet preparation step 1, replaces iron oxide with the copper oxide of equivalent；
Remaining step is identical with embodiment 1.
Reference examples 9
Be with 1 difference of embodiment: in zinc-manganese iron clad metal sheet preparation step 2, not adding tungsten oxide, remaining step with
Embodiment 1 is identical.
Reference examples 10
Be with 1 difference of embodiment: in zinc-manganese iron clad metal sheet preparation step 2, not adding molybdenum oxide, remaining step with
Embodiment 1 is identical.
Electromagnetic shielding performance by the sample of preparation in 8-12GHz frequency range is tested.Radio frequency electromagnetic field shield effectiveness
It is measured using Agilent 4396B network/spectrum/impedance analyzer, using SJ20524-1995, " Materials ' Shielding Effectiveness is surveyed
Method for testing "；It is as shown in the table for test result
The experimental results showed that composite shielding layer 12 of the present invention has good Magnetic Shielding Effectiveness, in one timing of test condition, shielding
Efficiency (SE) is higher, and Magnetic Shielding Effectiveness is better, otherwise poorer；When cobalt nitrate, nickel nitrate mass ratio are 5:1, other ingredients are solid
Fixed, preparation effect is best, with embodiment 1 the difference lies in that embodiment 2 change respectively to embodiment 10 primary raw material cobalt nitrate,
The dosage and proportion of nickel nitrate, although having certain improvement to material electromagnetic wave shielding, the effect not as good as embodiment 1 is more preferable；It is right
1 cobalt nitrate for using one-component to reference examples 2 or nickel nitrate are as electrolyte metal salt component, the complete phase of other steps as usual
Together, cause shield effectiveness to be substantially reduced, it is preferable to illustrate that the combined electrolysis solution of the two improves material electromagnetic shielding performance；Reference examples 3
It changes to 4 sodium metasilicate of reference examples and calgon quality proportioning, effectiveness is still bad, illustrates electrolytic oxidation
The two proportion is critically important in the process；Reference examples 5 to reference examples 8 do not add zinc oxide and manganese oxide, and replace oxygen with copper oxide
Change iron, so that zinc-manganese iron clad metal sheet structure composition changes, Magnetic Shielding Effectiveness is obviously deteriorated, and illustrates that three kinds of metal oxides are multiple
The electromagnetic shielding performance improvement closed for material is more obvious；Reference examples 9 to reference examples 10 do not add molybdenum oxide and tungsten oxide, compound
The property of metal changes, and shield effectiveness is obviously deteriorated, and shield effectiveness is not still high, although illustrating that molybdenum oxide and tungsten oxide are used
Amount is few but modified effect is obvious；Therefore there is excellent effectiveness using composite shielding layer 12 of the present invention.
Claims (6)
1. a kind of portable power amplifier with function of shielding, including power amplifier ontology (1), it is characterised in that: institute
Rear side above power amplifier ontology (1) is stated to slidably connect push-pull rod (2), it is intermediate above the power amplifier ontology (1)
It is fixedly connected with handle (3), is opened up fluted (4) on front side of the power amplifier ontology (1), groove (4) inner upper
It is provided with display screen (5), groove (4) lower inside is evenly spaced to be provided with several adjusting knobs (6), the power
Lower section is provided with charge port (7) and electricity jack (8) on front side of amplifier ontology (1), and the electricity jack (8) is arranged in charge port (7)
Right side, power amplifier ontology (1) lower section front side bipod are fixedly connected with supporting leg (9), the power amplifier ontology
(1) rear side bipod in lower section is connected with universal wheel (10), and power amplifier ontology (1) inner surface is fixedly connected with insulation protection
Layer (11), insulating protective layer (11) inner surface are fixedly connected with composite shielding layer (12), in the composite shielding layer (12)
Surface is fixedly connected with protective layer (13), and the protective layer (13) is internally provided with conducting wire (14), the composite shielding layer (12)
It is electrically connected with conducting wire (14) one end, the composite shielding layer (12) is internally provided with amplifier module (15), the conducting wire (14)
The other end and amplifier module (15) are electrically connected, and are provided with backup power source (16) below the amplifier module (15).
2. a kind of portable power amplifier with function of shielding according to claim 1, it is characterised in that: described aobvious
Display screen (5) and adjusting knob (6) and backup power source (16) are electrically connected, and the display screen (5) and adjusting knob (6) inner surface are solid
Surely it is connected with electromagnetic sealing liner (17), the electromagnetic sealing liner (17) outer surface is fixedly connected with composite shielding layer (12).
3. a kind of portable power amplifier with function of shielding according to claim 1, it is characterised in that: the tune
Saving knob (6) includes handle (18), is fixedly connected with connecting rod (19) below the handle (18), sliding below the connecting rod (19)
It is connected with brush (20).
4. a kind of portable power amplifier with function of shielding according to claim 3, it is characterised in that: the company
Bar (19) inner upper is fixedly connected with spring (21), is fixedly connected below the spring (21) with brush (20) bottom.
5. a kind of portable power amplifier with function of shielding according to claim 3, it is characterised in that: the company
Bar (19) outer surface is fixedly connected with sliding block (22), and brush (20) inner surface offers sliding rail (23), the sliding block (22)
It is matched with sliding rail (23).
6. a kind of portable power amplifier with function of shielding according to claim 1, it is characterised in that: described multiple
Close the zinc-manganese iron composition metal barricade that shielded layer (12) use microwave sintering method preparation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811134923.0A CN108990405A (en) | 2018-09-28 | 2018-09-28 | A kind of portable power amplifier with function of shielding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811134923.0A CN108990405A (en) | 2018-09-28 | 2018-09-28 | A kind of portable power amplifier with function of shielding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108990405A true CN108990405A (en) | 2018-12-11 |
Family
ID=64544044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811134923.0A Withdrawn CN108990405A (en) | 2018-09-28 | 2018-09-28 | A kind of portable power amplifier with function of shielding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108990405A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912518A (en) * | 2019-11-18 | 2020-03-24 | 深圳市凯合达智能设备有限公司 | Anti-collision broadband power amplifier for mobile communication |
| CN112272013A (en) * | 2020-11-02 | 2021-01-26 | 富芯微电子有限公司 | Operational amplifier chip with noise reduction function |
| CN112787648A (en) * | 2020-12-29 | 2021-05-11 | 贵州天义电器有限责任公司 | Small-size lightweight solid power control device |
| CN114039563A (en) * | 2021-11-10 | 2022-02-11 | 南通联航通讯科技有限公司 | Power amplifier with filtering and impurity removing protection |
| CN114039563B (en) * | 2021-11-10 | 2024-10-22 | 南通联航通讯科技有限公司 | Power amplifier with filtering impurity removal protection |
-
2018
- 2018-09-28 CN CN201811134923.0A patent/CN108990405A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912518A (en) * | 2019-11-18 | 2020-03-24 | 深圳市凯合达智能设备有限公司 | Anti-collision broadband power amplifier for mobile communication |
| CN112272013A (en) * | 2020-11-02 | 2021-01-26 | 富芯微电子有限公司 | Operational amplifier chip with noise reduction function |
| CN112272013B (en) * | 2020-11-02 | 2022-11-15 | 富芯微电子有限公司 | Operational amplifier chip with noise reduction function |
| CN112787648A (en) * | 2020-12-29 | 2021-05-11 | 贵州天义电器有限责任公司 | Small-size lightweight solid power control device |
| CN114039563A (en) * | 2021-11-10 | 2022-02-11 | 南通联航通讯科技有限公司 | Power amplifier with filtering and impurity removing protection |
| CN114039563B (en) * | 2021-11-10 | 2024-10-22 | 南通联航通讯科技有限公司 | Power amplifier with filtering impurity removal protection |
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