CN206077680U - Electrostatic loudspeaker systems - Google Patents
Electrostatic loudspeaker systems Download PDFInfo
- Publication number
- CN206077680U CN206077680U CN201620930527.9U CN201620930527U CN206077680U CN 206077680 U CN206077680 U CN 206077680U CN 201620930527 U CN201620930527 U CN 201620930527U CN 206077680 U CN206077680 U CN 206077680U
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- CN
- China
- Prior art keywords
- conductive metal
- metal foil
- foil layer
- electrostatic loudspeaker
- outfan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A kind of electrostatic loudspeaker systems, including audio amplification unit, high voltage direct current generator and electrostatic loudspeaker, electrostatic loudspeaker includes being located at the vibrating diaphragm in the middle of shell, annular sheet material, conductive metal foil layer, insulating substrate, conductive metal foil layer and insulating barrier are symmetrically arranged on two with vibrating diaphragm, conductive metal foil layer is provided with the annular sheet material side adjacent with the vibrating diaphragm；Insulating substrate is provided with the opposite side of annular sheet material, conductive metal foil layer and insulating barrier is sequentially provided with the face of the side of the annular sheet material in insulating substrate；Through hole is provided with insulating substrate, conductive metal foil layer and insulating barrier；The conductive metal foil layer of both sides is connected with the outfan of the audio amplification unit, and the conductive metal foil layer of both sides is connected on the outfan of high voltage direct current generator.The utility model has the advantages that：Manufacture difficulty and manufacturing cost are reduced, volume is reduced；External civil power is not needed, power consumption and heat dissipation capacity is reduced；Using internal battery, can carry with.
Description
Technical field
This utility model is related to a kind of electrostatic loudspeaker systems, is a kind of miniaturization, simplified manufacturing process and low manufacture
The electrostatic loudspeaker and amplifier system of cost.
Background technology
Electrostatic loudspeaker receives much concern as the speaker of high transient response/low distortion.In the structure of electrostatic loudspeaker,
The pellet electrode for having hole with electric conductivity is arranged in the both sides of the lamellar vibrating diaphragm with electric conductivity, and is being had
Insulation spacer is clipped between the pellet electrode and vibrating diaphragm in hole.Two lateral electrode needs many through its inner surface and outer
The through hole of side surface, to allow sound to allow human ear to hear by air borne to outside, and two lateral electrode is by for example conductive fine
The material such as the fabric that is made into of dimension or stamped sheet metal is made.
Insulation spacer among these and both sides pole plate, in molding/insulation processing technical difficulty and cost be it is high,
When applying Dc bias between each of vibrating diaphragm and two electrodes, and apply between two electrodes and sound waves
During the corresponding alternating voltage drive signal of shape, driving force corresponding with drive signal is produced between vibrating diaphragm and electrode, and
And the vibrating diaphragm vibrated between two electrodes by means of the driving force produces vibration.So as to send and alternating voltage drive signal
Corresponding sound.
In order that electrostatic loudspeaker with said structure reproduces the sound of big volume, need vibrating diaphragm and electrode it
Between apply high voltage；And very high AC drive voltage is needed on two electrodes（Generally in 500 ~ 3000V）；This exchange
The generation of driving voltage, needs special audio frequency amplifier；It is broadly divided into two classes, A classes are discharge-tube amplifier, this assonance
Audio amplifier needs powerful power supply and could work, and be unable to do without electric main, and it is very serious and then bulky to generate heat
Involve great expense；B classes are transistor-like high-power audio amplifier, and this class audio amplifier needs powerful power supply could work
Make, be unable to do without electric main, and it is serious and then bulky to generate heat.The AC drive voltage that it exports simultaneously is still not enough pushed away
Dynamic vibrating diaphragm is sent compared with loud noise, so need it output and electrode between increase a transformator, this further increases
The volume and cost of system are added.
The content of the invention
This utility model aims to provide a kind of electrostatic loudspeaker systems, big with the manufacture difficulty for solving prior art presence,
Manufacturing cost is high, and volume is big, and amplifier system power consumption radiating is high, needs external civil power, it is impossible to the problem carried with.
The technical solution of the utility model is：A kind of electrostatic loudspeaker systems, including audio amplification unit, high direct voltage
The outfan of raw device and electrostatic loudspeaker, audio amplification unit and high voltage direct current generator is connected with electrostatic loudspeaker corresponding end,
Characterized in that, described electrostatic loudspeaker includes being located at the vibrating diaphragm in the middle of shell, the two of the vibrating diaphragm
Side is arranged with annular sheet material, the first conductive metal foil layer, insulating substrate, the second conductive metal foil layer and insulating barrier, in the ring
The shape sheet material side adjacent with the vibrating diaphragm is provided with the first conductive metal foil layer；Annular sheet material is defined with conductive metal foil layer
One firm rigid sheet entirety, as the insulation spacer of electrostatic loudspeaker；Insulation is provided with the opposite side of the annular sheet material
Base material, is sequentially provided with second conductive metal foil layer and insulating barrier in the face of the side of the annular sheet material in the insulating substrate；The insulation
Base material, the second conductive metal foil layer and insulating barrier define a firm rigid sheet entirety, are provided with uniform leading to thereon
Hole, as the pellet electrode of electrostatic loudspeaker；Second conductive metal foil layer of both sides is connected with the outfan of the audio amplification unit
Connect, the first conductive metal foil layer of both sides is connected on the outfan of high voltage direct current generator.
Described audio amplification unit includes battery, audio frequency amplifier and booster transformer, the outfan of audio frequency amplifier
Be connected with the primary of booster transformer, the outfan of the booster transformer is three-polar output, middle-end is grounded, and two ends are put as audio frequency
The outfan of big unit, is connected with two the second conductive metal foil layers of electrostatic loudspeaker respectively.
Described high voltage direct current generator is made up of self-excited oscillator and voltage multiplying rectifier filter circuit, the friendship of self-excited oscillator
Stream outfan is connected with the outfan of voltage multiplying rectifier filter circuit.
The insulating substrate of described electrostatic loudspeaker and annular sheet material are made up of glass fibre or other high resistance materials,
For rigid disk shape material.
First conductive metal foil layer and the second conductive metal foil layer of described electrostatic loudspeaker is excellent by electric conductivity
Metal is constituted.
The structure of the vibrating diaphragm of described electrostatic loudspeaker is：The plastic sheeting of 1-12 μ m-thicks bilateral or one side cover
Metal film.
The utility model has the advantages that：It is base material that electrostatic loudspeaker unit employs the material of high resistance, is made thin
Sheet shape material material, through hole and after covering conductive metal foil, and insulating layer coating substitute conventional conductive metal sheet, as electrostatic loudspeaker
Pellet electrode；The material for employing high resistance is base material, makes thin sheet shape material material, after covering conductive metal foil, is substituted normal
The insulant of rule, as the insulation spacer of electrostatic loudspeaker；Manufacture difficulty and manufacturing cost are reduced, body is greatly reduced
Product；Its amplifier system does not need external civil power, reduces power consumption and heat dissipation capacity；Using internal battery, can take with oneself
Band.
Description of the drawings
Fig. 1 is the cross section structure diagram of this utility model electrostatic loudspeaker part；
Fig. 2 is the electrical block diagram of this utility model audio frequency amplifier；
Fig. 3 is the circuit theory diagrams of high tension generator of the present utility model.
Specific embodiment
Referring to Fig. 1-Fig. 3, this utility model is a kind of electrostatic loudspeaker systems, including audio amplification unit A, high direct voltage
The outfan of generator B and electrostatic loudspeaker, audio amplification unit and high voltage direct current generator is connected with electrostatic loudspeaker corresponding end
Connect, it is characterised in that described electrostatic loudspeaker includes being located at the vibrating diaphragm 6 in the middle of shell 7, in the vibrating diaphragm
6 be symmetrically arranged on two with annular sheet material 4, the first conductive metal foil layer 5, insulating substrate 1, the second conductive metal foil layer 2 and insulation
Layer 3, is provided with the first conductive metal foil layer 5 in the annular sheet material 4 side adjacent with the vibrating diaphragm 6；In the annular sheet material 4
Opposite side is provided with insulating substrate 1, is sequentially provided with second conductive metal foil in the face of the side of the annular sheet material 4 in the insulating substrate 1
Layer 2 and insulating barrier 3；Uniform through hole 8 is provided with the insulating substrate 1, the second conductive metal foil layer 2 and insulating barrier 3；Both sides
Second conductive metal foil layer 2 is connected with the outfan of audio amplification unit A, and the first conductive metal foil layer 5 of both sides is by electricity
Resistance R2 is connected on the outfan V1 of high voltage direct current generator B.
Described insulating substrate 1 and annular sheet material 4 are made up of glass fibre or other high resistance materials, are rigid disk shape
Material.
The first described conductive metal foil layer 5 and the second conductive metal foil layer 2, by the excellent gold of the electric conductivities such as copper or aluminum
Category composition.
After the one side of described insulating substrate 1 covers the second conductive metal foil layer 2, then the through hole 8 of regular distribution is got, beaten
Behind hole the second conductive metal foil layer 2 surface insulating layer coating 3,3 groups of insulating substrate 1, the second conductive metal foil layer 2 and insulating barrier
The pellet electrode of Cheng Youkong.
The structure of described vibrating diaphragm 6 is：The plastic sheeting of 1-12 μ m-thicks bilateral or one side cover metal film.
First conductive metal foil layer 5 of 4 side of annular sheet material is contacted with vibrating diaphragm 6, for separating the lamellar for having hole
Electrode and vibrating diaphragm 6, and ensure that vibrating diaphragm 6 has enough free vibration spaces.
The wire W3 and W4 welded on first conductive metal foil layer 5 is connected to high voltage direct current generator B by resistance R2
On the polarization DC high voltage V1 of outfan（Referring to Fig. 3）, while polarization DC high voltage is passed by the first conductive metal foil layer 5
Lead on vibrating diaphragm 6, what is allowed on vibrating diaphragm 6 has stable DC high voltage.
Referring to Fig. 2, described audio amplification unit A includes battery E1, audio frequency amplifier P and booster transformer B1, audio frequency
The primary of the outfan of amplifier P and booster transformer B1 be connected, and the outfan of booster transformer B1 is three-polar output, middle-end
Ground connection, outfan of the two ends as audio amplification unit A, respectively with two the second conductive metal foil layers 2 of electrostatic loudspeaker
Lead-out wire W1, W2 connect.
Audio amplification unit A is powered using battery E1, and audio frequency amplifier P enters audible communication voltage as pre-amplifier
Row once amplifies.Voltage of the audio signal Jing after once amplifying, is transported to the primary boostings of booster transformer B1, puts as secondary
Greatly.Booster transformer B1 carries out audible communication signal voltage after secondary amplification, to be amplified to audible communication signal voltage enough
Height, wire W1, the W2 on the second conductive metal foil layer 2 of the both sides pellet electrode for having hole for being respectively outputted to electrostatic loudspeaker
On, and then drive the vibration of vibrating diaphragm 6 to send the sound of larger corresponding AC audio signal.
Referring to Fig. 3, described high voltage direct current generator B is made up of self-excited oscillator and voltage multiplying rectifier filter circuit, self-excitation
The ac output end of agitator is connected with the outfan of voltage multiplying rectifier filter circuit.
Described self-excited oscillator is connected as by audion T, resistance R1, electric capacity C1 and the primary coil of concussion transformator B2
Conventional self-excited oscillator, shakes the primary alternating currents for producing fixed frequency fixed amplitude of transformator B2, it is boosted after from shake
The two ends output of B2 level of transformator is swung, then through constituting voltage-multiplying circuit and filtering by electric capacity C2-C7 and diode D1-D6
Electric capacity C8 rectifying and wave-filterings be high direct voltage V1, two first conductive metal foil layers 5 of the V1 after resistance R2 with electrostatic loudspeaker
The wire W3 and W4 connection of upper welding.
Element in foregoing circuit, audion T is common NPN switch triodes, and R1 is 120K Ω resistance, and electric capacity C1 is
0.01uF, C2 are 1500pF, and C3 is 1500pF, and C4 is 1500pF, and C5 is 1500pF, and C6 is 1500pF, and C7 is 1500pF, and C8 is
0.22uF；B2 is (1+1):20 transformator；Diode D1-D6 is general-purpose diode.The input of high voltage direct current generator B
DC source E2 is taken from the two ends of battery E1 or the electric power management circuit of E1, and single battery may also be employed.
High voltage direct current generator in this utility model employs low-voltage direct-current E2 and powers, and compares common electric main
Filter and the mode of generation high pressure through voltage multiplying rectifier, unidirectional current is pressed with less ripple, and volume and cost greatly reduce.
Above-described embodiment is the explanation of a sound channel, and during multiple sound channels, their operation principle is identical.
Claims (6)
1. a kind of electrostatic loudspeaker systems, including audio amplification unit, high voltage direct current generator and electrostatic loudspeaker, audio frequency amplify
The outfan of unit and high voltage direct current generator is connected with electrostatic loudspeaker corresponding end, it is characterised in that described electrostatic is raised one's voice
Device includes being located at the vibrating diaphragm in the middle of shell, being symmetrically arranged on two with annular sheet material, first leading in the vibrating diaphragm
Electric metal layers of foil, insulating substrate, the second conductive metal foil layer and insulating barrier, the annular sheet material it is adjacent with the vibrating diaphragm one
Side is provided with the first conductive metal foil layer；Annular sheet material defines a firm rigid sheet entirety with conductive metal foil layer, makees
For the insulation spacer of electrostatic loudspeaker；Insulating substrate is provided with the opposite side of the annular sheet material, the ring is faced in the insulating substrate
The side of shape sheet material is sequentially provided with the second conductive metal foil layer and insulating barrier；The insulating substrate, the second conductive metal foil layer and absolutely
Edge layer defines a firm rigid sheet entirety, is provided with uniform through hole thereon, used as the lamellar electricity of electrostatic loudspeaker
Pole；Second conductive metal foil layer of both sides is connected with the outfan of the audio amplification unit, the first conductive metal foil layer of both sides
It is connected on the outfan of high voltage direct current generator.
2. electrostatic loudspeaker systems according to claim 1, it is characterised in that described audio amplification unit includes electricity
Pond, audio frequency amplifier and booster transformer, the outfan of audio frequency amplifier are connected with the primary of booster transformer, the boosting transformation
The outfan of device be three-polar output, middle-end ground connection, outfan of the two ends as audio amplification unit, respectively with electrostatic loudspeaker
Two the second conductive metal foil layer connections.
3. electrostatic loudspeaker systems according to claim 1, it is characterised in that described high voltage direct current generator is by self-excitation
Agitator and voltage multiplying rectifier filter circuit composition, the ac output end of self-excited oscillator and the outfan of voltage multiplying rectifier filter circuit
Connection.
4. electrostatic loudspeaker systems according to claim 1, it is characterised in that the insulating substrate of described electrostatic loudspeaker
It is made up of glass fibre or other high resistance materials with annular sheet material, is rigid disk shape material.
5. electrostatic loudspeaker systems according to claim 1, it is characterised in that the first of described electrostatic loudspeaker is conductive
Metal foil layer and the second conductive metal foil layer are made up of the excellent metal of electric conductivity.
6. electrostatic loudspeaker systems according to claim 1, it is characterised in that the vibrating diaphragm of described electrostatic loudspeaker
Structure be：The plastic sheeting of 1-12 μ m-thicks bilateral or one side cover metal film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620930527.9U CN206077680U (en) | 2016-08-24 | 2016-08-24 | Electrostatic loudspeaker systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620930527.9U CN206077680U (en) | 2016-08-24 | 2016-08-24 | Electrostatic loudspeaker systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206077680U true CN206077680U (en) | 2017-04-05 |
Family
ID=58431225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620930527.9U Expired - Fee Related CN206077680U (en) | 2016-08-24 | 2016-08-24 | Electrostatic loudspeaker systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206077680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106454667A (en) * | 2016-08-24 | 2017-02-22 | 深圳市炜鼎科技有限公司 | Static loudspeaker system |
-
2016
- 2016-08-24 CN CN201620930527.9U patent/CN206077680U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106454667A (en) * | 2016-08-24 | 2017-02-22 | 深圳市炜鼎科技有限公司 | Static loudspeaker system |
| CN106454667B (en) * | 2016-08-24 | 2022-04-22 | 深圳市炜鼎科技有限公司 | Electrostatic speaker system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170405 Termination date: 20210824 |