CN207833753U - A kind of vibrating membrane loudspeaker device - Google Patents
A kind of vibrating membrane loudspeaker device Download PDFInfo
- Publication number
- CN207833753U CN207833753U CN201721518258.6U CN201721518258U CN207833753U CN 207833753 U CN207833753 U CN 207833753U CN 201721518258 U CN201721518258 U CN 201721518258U CN 207833753 U CN207833753 U CN 207833753U
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- China
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- coil
- magnet
- self
- power amplifier
- vibrating diaphragm
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Abstract
The utility model proposes a kind of vibrating membrane loudspeaker devices, including：Self-defined vibrating diaphragm, coil, tone frequency channel wire, power amplifier, multimedia player, magnet, the coil is fixed on the self-defined vibrating diaphragm, the coil is connected to by tone frequency channel wire with power amplifier and multimedia player, the magnet is set in the coil, power amplifier inputs to coil after the alternate electrical signal from multimedia player is amplified, the magnetic field that the electric current and magnet changed in coil generates generates the Ampere force of variation, the Ampere force promotes coil and self-defined vibrating diaphragm to vibrate, and then it generates air vibration and forms music, it is simple in structure, using easy to operate, it is cheap, increase experiment and teaching efficiency.
Description
Technical field
The utility model belongs to teaching appliance field, is related to a kind of vibrating membrane loudspeaker device.
Background technology
The discovery of electricity and magnetic inner link has epoch-making meaning in science and technology, either on knowledge content,
Or it in social practice, is all extremely important.In addition, electricity with magnetic contact be electromagnetism core content, in being
Learn the key content in one of physics emphasis content of courses and middle duty physics teaching.This requires teachers in teaching process
Fully pay attention to the instruction of In this Section, and physics is the natural subject based on observing and test, by reasonably testing
Demonstration can promote student to form corresponding concept and grasp corresponding rule, and understanding and Applied Physics knowledge are further cultivated
Observation ability, manipulative ability, thinking ability and the innovation ability of student.
The effect of electric current and magnetic should divide several aspects：That be exactly electric current to magnetic, electric current to electric current, magnetic is to electric current etc..At this
In the teaching process for saving content, sometimes when explaining the effect of electricity and magnetic, partial students cannot be best understood by, it is therefore necessary to
Enhance the understanding level of student by some experimental apparatus.Traditional Experiments of Electromagnetism apparatus for demonstrating is generally coil and magnet
Interaction, the immediate current of generation is captured by ammeter to be shown in the form of throw of pointer；Or in electrified wire week
Placement small magnetic needle is enclosed, is embodied in the form of conducting wire is powered the deflection of moment small magnetic needle, though such lecture experiment has annotated electromagnetism
Knowwhy, can not but embody the application of electromagnetism, the practicability of electromagnetism can not be annotated, hinder the diverging of student thought
With the promotion of the ability of innovation.
For the practicability that electromagnetism in traditional experiment apparatus for demonstrating is unfavorable for that student is allowed to understand the knowledge, and it is unfavorable for
The problems such as diverging of Students ' Creative Thoughts, proposes a kind of physics demonstration instrument that can demonstrate electromagnetic principles, is that extremely have must
It wants.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of vibrating membrane loudspeaker devices, for solving the prior art
In complicated, problem that cost is high, improve experiment and teaching efficiency.
In order to achieve the above objectives, the utility model provides the following technical solutions：A kind of vibrating membrane loudspeaker device, including：From
Vibrating diaphragm, coil, tone frequency channel wire, power amplifier, multimedia player, magnet are defined, the coil is fixed on described self-defined shake
On film, the coil is connected to by tone frequency channel wire with power amplifier and multimedia player, and the magnet is set to the line
In circle.
Further, the self-defined vibrating diaphragm is film-form.
Further, the self-defined vibrating diaphragm is paper membrane, plastic foil, synthetic fibers film or metal film.
Further, the coil is made of copper or aluminium.
Further, it is connected by the interface of a diameter of 3.5mm between the tone frequency channel wire and the multimedia player.
Further, the gain power of the power amplifier is 50-500 times.
Further, the magnet is ndfeb magnet or ferrite lattice.
The beneficial effects of the utility model are：Simple in structure, use is easy to operate, cheap, improves experiment
Demonstrating effect also improves interest of the student to experiment, is conducive to student's profound understanding when learning In this Section and remembers, diffusion
The innovative thinking of student；It is real to improve student on traditional teaching material for the voiced process that loud speaker has been probed into simple self-made teaching aid
The deficiency of apparatus for demonstrating is tested, meanwhile, during the experiment using problem, inspiration, application, expansion as means, with language, operation, body
Test as mode, allow student dynamic eye, start, beat one's brains and cooperation and exchange in, the gradually core attainment of Developing Students '.
Other advantages, target and feature of the utility model will be explained in the following description to a certain extent
It states, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or
Person can be instructed from the practice of the utility model.The target of the utility model and other advantages can be said by following
Bright book is realized and is obtained.
Description of the drawings
In order to keep the purpose of this utility model, technical solution and advantage clearer, below in conjunction with attached drawing to this practicality
It is novel to be preferably described in detail, wherein：
Fig. 1 is the overall structure diagram of the utility model；
Stressing conditions schematic diagram when Fig. 2 is the utility model magnet and coil effect.
Specific implementation mode
Illustrate that the embodiment of the utility model, those skilled in the art can be by this theorys below by way of specific specific example
Content disclosed by bright book understands other advantages and effect of the utility model easily.The utility model can also be by addition
Different specific implementation modes are embodied or practiced, and the various details in this specification can also be based on different viewpoints and answer
With carrying out various modifications or alterations under the spirit without departing from the utility model.It should be noted that institute in following embodiment
The diagram of offer only illustrates the basic conception of the utility model in a schematic way, in the absence of conflict, following embodiment and
Feature in embodiment can be combined with each other.
- Fig. 2 is please referred to Fig.1, the element numbers in attached drawing indicate respectively：Self-defined vibrating diaphragm 1, coil 2, tone frequency channel wire 3, power
Amplifier 4, multimedia player 5, magnet 6.
A kind of vibrating membrane loudspeaker device, including：Self-defined vibrating diaphragm 1, coil 2, tone frequency channel wire 3, power amplifier 4, multimedia
Player 5, magnet 6, the coil 2 are fixed on the self-defined vibrating diaphragm 1, and the coil 2 passes through tone frequency channel wire 3 and power amplification
Device 4 and multimedia player 5 are connected to, and the magnet 6 is set in the coil 2.Specifically, with the tone frequency channel wire 3 of 50cm long
Connect coil 2, power amplifier 4 and multimedia player 5, open multimedia player 5, manually by a length of 2cm, width 2cm,
The rectangular magnet body 6 of a height of 4cm is put into coil 2, and 2 stressing conditions of coil on self-defined vibrating diaphragm 1 are as shown in Fig. 2, branch at this time
The equal in magnitude and direction of holding force F and gravity mg is on the contrary, and Ampere force F1Constantly change size and Orientation with the input of alternating current,
It is allowed to vibrate making music to constantly pushing and pulling self-defined vibrating diaphragm 1, magnetic field disappears if taking away magnet 6, and music is also immediately
Stop.
Preferably, the self-defined vibrating diaphragm 1 is film-form.Further, the self-defined vibrating diaphragm 1 be paper membrane, plastic foil,
Synthetic fibers film or metal film.
Specifically, the coil 2 is made of copper or aluminium, can also be that other can be with the material of magnetic field interaction.
Further, it is connected by the interface of a diameter of 3.5mm between the tone frequency channel wire 3 and the multimedia player 5, the sound
Frequency line 3 can be the common flexible circuit conductors such as audio electrical signal cable, enameled wire, RVV (227IEC52/53).
Preferably, the gain power of the power amplifier 4 is 50-500 times.
Preferably, the magnet 6 is ndfeb magnet 6 or ferrite lattice 6.
Finally illustrate, above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those of ordinary skill in the art that, it can be to this
The technical solution of utility model is modified or replaced equivalently, should all without departing from the objective and range of the technical program
Cover in the right of the utility model.
Claims (7)
1. a kind of vibrating membrane loudspeaker device, which is characterized in that including：It is self-defined vibrating diaphragm, coil, tone frequency channel wire, power amplifier, more
Media player, magnet, the coil are fixed on the self-defined vibrating diaphragm, and the coil passes through tone frequency channel wire and power amplifier
And multimedia player connection, the magnet are set in the coil.
2. vibrating membrane loudspeaker device as described in claim 1, it is characterised in that：The self-defined vibrating diaphragm is film-form.
3. vibrating membrane loudspeaker device as described in claim 2, it is characterised in that：The self-defined vibrating diaphragm is paper membrane, plastics
Film, synthetic fibers film or metal film.
4. vibrating membrane loudspeaker device as described in claim 1, it is characterised in that：The coil is made of copper or aluminium.
5. vibrating membrane loudspeaker device as described in claim 1, it is characterised in that：The tone frequency channel wire and the multimedia
It is connected by the interface of a diameter of 3.5mm between device.
6. vibrating membrane loudspeaker device as described in claim 1, it is characterised in that：The gain power of the power amplifier
It is 50-500 times.
7. vibrating membrane loudspeaker device as described in claim 1, it is characterised in that：The magnet is ndfeb magnet or iron
Oxysome magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721518258.6U CN207833753U (en) | 2017-11-14 | 2017-11-14 | A kind of vibrating membrane loudspeaker device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721518258.6U CN207833753U (en) | 2017-11-14 | 2017-11-14 | A kind of vibrating membrane loudspeaker device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207833753U true CN207833753U (en) | 2018-09-07 |
Family
ID=63386397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721518258.6U Expired - Fee Related CN207833753U (en) | 2017-11-14 | 2017-11-14 | A kind of vibrating membrane loudspeaker device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207833753U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831267A (en) * | 2018-09-12 | 2018-11-16 | 青海省科学技术馆（青海省青少年科技中心） | A kind of exhibition article for demonstrating loudspeaker principle |
| CN111536013A (en) * | 2020-04-30 | 2020-08-14 | 厦门奇跃电子科技有限公司 | Method for implementing micro-flow control by audio input |
| WO2021012326A1 (en) * | 2019-07-19 | 2021-01-28 | 歌尔股份有限公司 | Magnetic-potential loudspeaker and electronic device using same |
-
2017
- 2017-11-14 CN CN201721518258.6U patent/CN207833753U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831267A (en) * | 2018-09-12 | 2018-11-16 | 青海省科学技术馆（青海省青少年科技中心） | A kind of exhibition article for demonstrating loudspeaker principle |
| WO2021012326A1 (en) * | 2019-07-19 | 2021-01-28 | 歌尔股份有限公司 | Magnetic-potential loudspeaker and electronic device using same |
| CN111536013A (en) * | 2020-04-30 | 2020-08-14 | 厦门奇跃电子科技有限公司 | Method for implementing micro-flow control by audio input |
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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: 20180907 Termination date: 20181114 |