CN105142050B - Audio amplifier - Google Patents
Audio amplifier Download PDFInfo
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- CN105142050B CN105142050B CN201510624554.3A CN201510624554A CN105142050B CN 105142050 B CN105142050 B CN 105142050B CN 201510624554 A CN201510624554 A CN 201510624554A CN 105142050 B CN105142050 B CN 105142050B
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- Prior art keywords
- loudspeaker
- electromagnet
- audio amplifier
- support
- magnet
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Abstract
The present invention relates to sound system technical field, more particularly to a kind of audio amplifier.Loudspeaker is suspended by the audio amplifier using electromagnet, and this audio amplifier resonance sound timbre that is smaller and sending is preferable.
Description
Technical field
The present invention relates to sound system technical field, more particularly to a kind of audio amplifier.
Background technology
Audio amplifier is last in whole sound system flow and a most important composition, and its playing quality is to whole
The influence of individual systematic function is very big, estimates according to professional person, and contribution of the audio amplifier to whole sound system accounts for whole system
More than 30%.
Audio amplifier includes the fine or not shadow to tonequality of voice box casing, loudspeaker and frequency divider, loudspeaker and frequency divider in itself
Sound accounts for 70%, and influence of the voice box casing to tonequality accounts for 30%, because loudspeaker has a great influence with frequency divider to tonequality,
Prior art most people are to improve loudspeaker and frequency divider, and few people go to improve voice box casing.
But voice box casing also has a very big impact to the tonequality of audio amplifier, wherein most important influence is audio amplifier resonance,
Again because the frame of loudspeaker is mainly fastened on the front panel of voice box casing by the loudspeaker of prior art by screw, i.e.,
Frame is directly to be contacted with front panel, so when vibration caused by speaker operation can be direct by supporting constructions such as frame
It is delivered on the front panel of voice box casing, and then voice box casing is resonated, also there are some audio amplifiers by support by loudspeaker
It is fixed on other panels, can directly transfers vibrations on panel fixed thereto during such speaker operation so that sound
Tank shell resonates so that the sound timbre that audio amplifier is sent is poor.
The content of the invention
The technical problems to be solved by the invention are：A kind of resonance preferable sound of sound timbre that is smaller and sending is provided
Case.
The technical solution adopted in the present invention is：A kind of audio amplifier, including controller, voice box casing and loudspeaker, it is described
Voice box casing includes front panel, rear board, left panel, right panel, bottom plate and top plate, and the front panel is provided with one with raising
The through hole that sound device matches, the loudspeaker is provided with magnet, and is provided between the loudspeaker and magnet made of NULL
Every being equipped with the electromagnet for adsorbing magnet, each electromagnet on magnetosphere, the left panel, right panel, bottom plate and top plate
A magnetic field sensor for being used for induced field Strength Changes is provided with, the electromagnet and magnetic field sensor are and controller
Electrical connection, and also sealed and fixed by flexible sealing material between loudspeaker and front panel, and the bottom plate is provided with one
For the support of the support speaker when electromagnet does not work,
When work of electromagnet, loudspeaker can suspend in the presence of electromagnetic force, not acted between loudspeaker and support
Power；When electromagnet is stopped, loudspeaker position does not change, but loudspeaker can be withstood support by support.
The mass component of the NULL is
The center of the support is provided with a flux bore passed through for magnetic force caused by the electromagnet on bottom plate.
The flexible sealing material is foam seal ring and glass cement.
The loudspeaker includes shell and the frame that is arranged on outside shell, and the magnet is shell-like, and the magnet set
It is located at outside shell.
Described every magnetosphere is shell-like, and described to be set in every magnetosphere on shell, the magnet is set in every on magnetosphere.
The pedestal upper end face is provided with pressure sensor, and the pressure sensor is electrically connected with the controller.
Using above technical scheme compared with prior art, the present invention has advantages below：By electromagnet by loudspeaker
Suspend, such loudspeaker only has annexation by the front panel of flexible sealing material and voice box casing, i.e., caused by loudspeaker
Vibration is delivered on voice box casing without going past the part being directly connected to, and can be only delivered to by flexible material on front panel,
So passing to past vibration can be substantially reduced by flexible material, so when speaker operation voice box casing will not occur altogether
Shake, the sound timbre that such audio amplifier is sent is preferable, and detects magnetic field using magnetic field sensor, so can preferably control and raise
Sound device suspend when stability so that loudspeaker suspend when be not easy to shake, and between magnet and loudspeaker be provided with every
It magnetosphere, so can effectively prevent the magnetic field that electromagnet is formed from influenceing the work of loudspeaker in itself, and a support is set,
So when not being powered, i.e., when electromagnet does not work, the function of support speaker, and electricity can be played by support
During magnet power on/off, the position of loudspeaker is constant, i.e., is powered off suddenly in electromagnet, i.e., loudspeaker from suspended state be changed into according to
By speaker damage will not be caused because there is range difference during support holding state.
It is and preferable using the NULL of this component composition, magnetism isolating effect.
The heart sets a flux bore in the bracket, can so prevent because of support stop and on influence caused by magnetic field.
Loudspeaker and front panel sealing are fixed using foam seal ring and glass cement, so not only seal fixed effect
Preferably, and the vibration that loudspeaker passes over can be substantially reduced.
Magnet is made into shell-like, preferably can so be coordinated with multiple electromagnet so that stress compares when loudspeaker suspends
Uniformly.
Shell-like will be made every magnetosphere, and can preferably play separated magnetic effect.
One pressure sensor is set on support, so when speaker operation, pressure sensor has detected pressure,
Then represent that loudspeaker does not suspend completely, can now control corresponding electromagnet loudspeaker completely outstanding by controller
It is floating.
Brief description of the drawings
Fig. 1 is the side sectional view of audio amplifier of the present invention.
Fig. 2 is the front section view of audio amplifier of the present invention.
Fig. 3 is the enlarged drawing at Figure 1A.
As shown in the figure：1st, loudspeaker；2nd, front panel；3rd, rear board；4th, left panel；5th, right panel；6th, bottom plate；7th, top plate；
8th, magnet；9th, every magnetosphere；10th, electromagnet；11st, flexible sealing material；12nd, support；13rd, flux bore.
Embodiment
The present invention is described further with embodiment below in conjunction with accompanying drawing, but the present invention be not limited only to it is following
Embodiment.
A kind of audio amplifier, including controller, voice box casing and loudspeaker 1, the voice box casing include front panel 2, below
Plate 3, left panel 4, right panel 5, bottom plate 6 and top plate 7, the front panel 2 are provided with a through hole to match with loudspeaker 1,
The loudspeaker 1 is provided with magnet 8, and is provided between the loudspeaker 1 and magnet 8 made of NULL every magnetosphere 9, described
The electromagnet 10 for adsorbing magnet is equipped with left panel 4, right panel 5, bottom plate 6 and top plate 7, is set on each electromagnet 10
There is a magnetic field sensor for being used for induced field Strength Changes, the electromagnet and magnetic field sensor are electrically connected with controller
Connect, and also sealed and fixed by flexible sealing material 11 between loudspeaker 1 and front panel 2, and the bottom plate 6 is provided with one
For the support 12 of the support speaker 1 when electromagnet does not work,
When work of electromagnet, loudspeaker can suspend in the presence of electromagnetic force, not acted between loudspeaker and support
Power；When electromagnet is stopped, loudspeaker position does not change, but loudspeaker can be withstood support by support.
The mass component of the NULL is
The center of the support 12 is provided with a flux bore 13 passed through for magnetic force caused by the electromagnet on bottom plate.Magnetic flux
The diameter in hole 13 is slightly smaller than the width of magnet lower surface, so can prevent the lower surface of magnet 8 from being fallen from flux bore 13.
The flexible sealing material 11 is foam seal ring and glass cement.Loudspeaker is first by foam seal ring and above
Plate 2 is fixed, and is then sealed by glass cement.
The loudspeaker 1 includes shell and the frame that is arranged on outside shell, and the magnet 8 is shell-like, and the magnet 8
It is set in outside shell.
Described every magnetosphere 9 is shell-like, and described to be set in every magnetosphere 9 on shell, the magnet 8 is set in every on magnetosphere 9.
The upper surface of support 12 is provided with pressure sensor, and the pressure sensor is electrically connected with the controller.
During the operation principle of the present invention：When audio amplifier powers off, now electromagnet 10 is not powered up, so can not produce
Magnetic field and loudspeaker 1 is suspended, so 1 most weight of loudspeaker is by made of support 12, and fraction is
It is made up of the flexible sealing material 11 between loudspeaker 1 and front panel 2；After audio amplifier is electrified, now electromagnet 10
Be powered startup simultaneously, then produces magnetic force according to pre-set magnetic field size, and the magnet being arranged on loudspeaker 1 is produced
Active force, and then cause loudspeaker 1 to suspend, most of gravity is offset by magnetic force, and fraction passes through flexible sealing material 11
It is made, that is, causes do not have active force between loudspeaker 1 and support 12, such loudspeaker also will not drives support 12 to shake in vibration
It is dynamic, and because flexible sealing material 11 is flexible, even if some vibration is delivered to by flexible sealing material
Voice box casing, that is also minimum；Then when audio amplifier powers off again, because electromagnet 10 is again without then electromagnet 10
Do not continue to work, now loudspeaker 1 can be fallen down under gravity, but because loudspeaker 1 suspend when with support 12 it
Between without distance or it is in small distance, so directly can be caught and then supported by support 12 when loudspeaker 1 does not suspend, so
Loudspeaker 1 will not be damaged.
And the control principle in terms of the application electrical equipment is：After audio amplifier is powered, if pressure sensor has received pressure,
Then represent that now loudspeaker 1 returns the pressure of support 12 1, do not suspend completely, so now controller can control and be arranged on bottom
Electromagnet 10 on plate 6 increases magnetic force, and until pressure sensor is not received by pressure, and magnetic field sensor is to survey always
Magnetic field is tried, the magnetic field around speaker magnets is matched with magnetic field set in advance, and then loudspeaker 1 is just hanged
Floating, uniform force, if magnetic field sensor test does not match to magnetic field with the magnetic field of setting, controller controls corresponding electromagnetism
Iron 10 makes corresponding change.
Claims (7)
1. a kind of audio amplifier, including controller, voice box casing and loudspeaker (1), the voice box casing include front panel (2), after
Panel (3), left panel (4), right panel (5), bottom plate (6) and top plate (7), the front panel (2) are provided with one with raising one's voice
The through hole that device (1) matches, it is characterised in that：The loudspeaker (1) is provided with magnet (8), and the loudspeaker (1) and magnet
(8) it is provided between made of NULL every magnetosphere (9), the left panel (4), right panel (5), bottom plate (6) and top plate (7)
On be equipped with electromagnet (10) for adsorbing magnet, each electromagnet (10) is used for induced field Strength Changes provided with one
Magnetic field sensor, the electromagnet and magnetic field sensor be electrically connected with the controller, and loudspeaker (1) and front panel (2)
Between also sealed and fix by flexible sealing material (11), and the bottom plate (6) is provided with one and is used for when electromagnet not work
The support (12) of support speaker (1) when making；
When work of electromagnet, loudspeaker can suspend in the presence of electromagnetic force, not have active force between loudspeaker and support；When
When electromagnet is stopped, loudspeaker position does not change, but loudspeaker can be withstood support by support.
2. audio amplifier according to claim 1, it is characterised in that：The mass component of the NULL is
3. audio amplifier according to claim 1, it is characterised in that：The center of the support (12) is provided with one on bottom plate
The flux bore (13) that magnetic force caused by electromagnet passes through.
4. audio amplifier according to claim 1, it is characterised in that：The flexible sealing material (11) is foam seal ring and glass
Glass glue.
5. audio amplifier according to claim 1, it is characterised in that：The loudspeaker (1) includes shell and is arranged on shell
Outer frame, the magnet (8) is shell-like, and the magnet (8) is set in outside shell.
6. audio amplifier according to claim 5, it is characterised in that：It is described every magnetosphere (9) be shell-like, it is described every magnetosphere (9) cover
It is located on shell, the magnet (8) is set in every on magnetosphere (9).
7. audio amplifier according to claim 1, it is characterised in that：Support (12) upper surface is provided with pressure sensor, and
The pressure sensor is electrically connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510624554.3A CN105142050B (en) | 2015-09-25 | 2015-09-25 | Audio amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510624554.3A CN105142050B (en) | 2015-09-25 | 2015-09-25 | Audio amplifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105142050A CN105142050A (en) | 2015-12-09 |
| CN105142050B true CN105142050B (en) | 2018-03-23 |
Family
ID=54727234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510624554.3A Active CN105142050B (en) | 2015-09-25 | 2015-09-25 | Audio amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105142050B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1516519A (en) * | 2003-08-31 | 2004-07-28 | 江 徐 | Voice box |
| CN101132650A (en) * | 2006-08-25 | 2008-02-27 | 佛山市顺德区顺达电脑厂有限公司 | Vibration isolating structure of loudspeaker apparatus |
| JP2011114589A (en) * | 2009-11-27 | 2011-06-09 | Funai Electric Co Ltd | Loudspeaker-mounting structure |
| TW201328369A (en) * | 2011-12-16 | 2013-07-01 | Wistron Corp | Speaker device and electronic device having the same |
-
2015
- 2015-09-25 CN CN201510624554.3A patent/CN105142050B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1516519A (en) * | 2003-08-31 | 2004-07-28 | 江 徐 | Voice box |
| CN101132650A (en) * | 2006-08-25 | 2008-02-27 | 佛山市顺德区顺达电脑厂有限公司 | Vibration isolating structure of loudspeaker apparatus |
| JP2011114589A (en) * | 2009-11-27 | 2011-06-09 | Funai Electric Co Ltd | Loudspeaker-mounting structure |
| TW201328369A (en) * | 2011-12-16 | 2013-07-01 | Wistron Corp | Speaker device and electronic device having the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105142050A (en) | 2015-12-09 |
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| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yan Jun Inventor before: Li Ziquan |
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