CN112216251B - Light-emitting device of metal string guitar - Google Patents
Light-emitting device of metal string guitar Download PDFInfo
- Publication number
- CN112216251B CN112216251B CN202011068994.2A CN202011068994A CN112216251B CN 112216251 B CN112216251 B CN 112216251B CN 202011068994 A CN202011068994 A CN 202011068994A CN 112216251 B CN112216251 B CN 112216251B
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- Prior art keywords
- magnetic
- cavity
- electrically connected
- circuit
- circuit board
- Prior art date
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- 239000002184 metal Substances 0.000 title claims abstract description 28
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 28
- 229920003023 plastic Polymers 0.000 claims abstract description 16
- 239000004033 plastic Substances 0.000 claims abstract description 16
- 230000006698 induction Effects 0.000 claims description 12
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 238000005034 decoration Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 230000005389 magnetism Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10D—STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
- G10D1/00—General design of stringed musical instruments
- G10D1/04—Plucked or strummed string instruments, e.g. harps or lyres
- G10D1/05—Plucked or strummed string instruments, e.g. harps or lyres with fret boards or fingerboards
- G10D1/08—Guitars
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10D—STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
- G10D3/00—Details of, or accessories for, stringed musical instruments, e.g. slide-bars
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Stringed Musical Instruments (AREA)
Abstract
The invention discloses a light-emitting device of a metal string guitar, which comprises a plastic outer shell, wherein a cavity is formed in the plastic outer shell, a buffer layer is arranged in the horizontal direction of the cavity, the buffer layer divides the cavity into an upper cavity and a lower cavity, one side, close to the upper cavity, of the buffer layer is provided with a magnetic strip, the lower cavity is provided with a circuit board and a battery seat, and an amplifying circuit board is electrically connected with the battery seat; the magnetic column and the LED spotlight are embedded in the outer wall of the upper cavity, the magnetic column penetrates out of the outer wall of the upper cavity, the bottom end of the magnetic column is connected with the buffer layer, and the coil is wound on the side wall of the magnetic column positioned in the upper cavity; the LED spotlight is electrically connected with the circuit board, and the coil is electrically connected with the circuit board. Compared with the prior naive decoration, the invention has more cool display effect, and increases fun in the process of learning the piano. The training of the string plucking force can be assisted, and the larger the string plucking force is, the brighter the LED spotlight is.
Description
Technical Field
The invention belongs to the technical field of electromagnetic induction, and relates to a light-emitting device of a metal string guitar.
Background
Nowadays, guitars gradually enter people's lives, especially ballad guitars, and are widely popular among vast students and hobbyists. As people increasingly seek personalisation, the traditional guitar decorations (stickers) do not meet the needs of people and can change the guitar appearance and even affect the guitar sound. In the information age, some decorations should realize informatization so as to achieve a more cool effect and meet the individual pursuit of people.
Disclosure of Invention
The invention aims to provide a light-emitting device of a metal string guitar, which solves the problem of single guitar ornament in the prior art.
The technical scheme includes that the light-emitting device of the metal string guitar comprises a plastic outer shell, a cavity is formed in the plastic outer shell, a buffer layer is arranged in the horizontal direction of the cavity, the buffer layer divides the cavity into an upper cavity and a lower cavity, a magnetic stripe is arranged on one side, close to the upper cavity, of the buffer layer, a circuit board and a battery seat are arranged in the lower cavity, and an amplifying circuit board is electrically connected with the battery seat; the magnetic column and the LED spotlight are embedded in the outer wall of the upper cavity, the magnetic column penetrates out of the outer wall of the upper cavity, the bottom end of the magnetic column is connected with the buffer layer, and the coil is wound on the side wall of the magnetic column positioned in the upper cavity; the LED spotlight is electrically connected with the circuit board, and the coil is electrically connected with the circuit board.
The invention is also characterized in that:
the plastic outer shell is characterized in that mounting bayonets are formed in the end parts of the two ends of the plastic outer shell, the plastic mounting bayonets are U-shaped grooves, screw holes are formed in the side walls of the two ends of the mounting bayonets, and positioning screws are arranged in the screw holes.
The circuit board is provided with an amplifying circuit and a load circuit, the amplifying circuit is electrically connected with an induction circuit, the induction circuit comprises a magnetic column, a magnetic stripe and a coil, the positive electrode of the output end of the induction circuit is electrically connected with the positive electrode of the input end of the amplifying circuit, and the negative electrode of the induction circuit is grounded;
the amplifying circuit is arranged in the LM 234-type chip, the LM 234-type chip is fixedly connected to the circuit board, the positive electrode of the amplifying circuit is electrically connected with the positive electrode of the load circuit, and the negative electrode of the amplifying circuit is grounded;
the load circuit comprises a current limiting resistor, the current limiting resistor is electrically connected with the LED spotlight, the positive electrode of the load circuit is electrically connected with the positive electrode of the output end of the amplifying circuit, and the negative electrode of the load circuit is grounded.
The magnetic strip is a ferrite permanent magnet material long and narrow NS level, the magnetic strip is close to the extremely N pole of the magnetic column, is far away from the extremely S pole of the magnetic column, and the distance between the magnetic strip and the magnetic column is 3-5 mm.
The battery seat is a national standard two-section 7# battery seat, one end of the battery seat is connected with a battery in series, and the other end of the battery seat is led out of two positive and negative wires of the battery to be electrically connected with the circuit board.
The number of the magnetic columns is 6, the 6 magnetic columns are uniformly distributed below the strings, and the distance between the magnetic columns and the strings is 5-8mm, and the magnetic columns are made of cast iron.
The coil is a copper enameled wire.
The LED spotlight is a lamp bead with rated voltage of 3 v.
The beneficial effects of the invention are as follows:
1. the strength of the spotlight is in direct proportion to the vibration strength of the strings, so that the guitar player can be assisted in training, and the player can better normalize the actions of the player.
2. The guitar has more personalized decoration style, can highlight damp influenza than the prior decoration, and also has rich rhythm change in playing.
3. The invention is arranged at the guitar sound hole position and does not influence the sound production effect and tone of the guitar. The scattering device can be matched later to produce a more cool effect.
Drawings
FIG. 1 is a schematic view of a light emitting device of a metal string guitar of the present invention;
FIG. 2 is a top view of a light emitting device of a metal string guitar of the present invention;
FIG. 3 is a cross-sectional view of a light emitting device of a metal string guitar of the present invention;
FIG. 4 is a side view of a light emitting device of a metal string guitar of the present invention;
FIG. 5 is a view showing the internal structure of the cavity upper layer of the light emitting device of the metal string guitar of the present invention;
FIG. 6 is a view showing the internal structure of the cavity lower layer of the light emitting device of the metal string guitar of the present invention;
FIG. 7 is a circuit diagram of a light emitting device of a metal string guitar of the present invention;
in the figure, 1 a plastic outer shell, 1-1 an upper cavity, 1-2 a lower cavity, 2 a mounting bayonet, 3 a positioning screw, 4 a magnetic column, 5 a LED spotlight, 6 a circuit board, 7 a battery holder, 8 a buffer layer, 9 a magnetic strip, 9-1 a magnetic strip N pole, 9-2.S poles and 10 a coil.
Detailed Description
The invention will be described in detail below with reference to the drawings and the detailed description.
The utility model provides a metal string guitar's illuminator, the structure is as shown in figures 1, 2, 3, including plastics outside casing 1, the inside cavity that has seted up of plastics outside casing 1, the cavity horizontal direction is provided with buffer layer 8, buffer layer 8 is cut apart into upper cavity 1-1 and lower floor's cavity 1-2 with the cavity, buffer layer 8 is close to one side of upper cavity and is provided with magnetic stripe 9, as shown in figure 6, lower floor's cavity 1-2 is provided with circuit board 6 and battery holder 7, amplifying circuit board 6 and battery holder 7 electric connection;
as shown in fig. 5, the outer wall of the upper cavity is embedded with a magnetic column 4 and an LED spot lamp 5, the magnetic column 4 penetrates out of the outer wall of the upper cavity 1-2, the bottom end of the magnetic column is connected with a buffer layer 8, and a coil 10 is wound on the side wall of the magnetic column 4 positioned in the upper cavity 1-2;
the LED spotlight 5 is electrically connected with the circuit board 6, and the coil 10 is electrically connected with the circuit board 6.
As shown in fig. 4, the two end parts of the plastic outer shell 1 are provided with mounting bayonets 2, the plastic mounting bayonets 2 are U-shaped grooves, the side walls of the two ends of the mounting bayonets 2 are provided with screw holes, and positioning screws 3 are arranged in the screw holes.
As shown in fig. 7, the circuit board 6 is provided with an amplifying circuit and a load circuit, the amplifying circuit is electrically connected with an induction circuit, the induction circuit comprises a magnetic column 4, a magnetic strip 9 and a coil 10, the positive electrode of the output end of the induction circuit is electrically connected with the positive electrode of the input end of the amplifying circuit, and the negative electrode of the induction circuit is grounded;
the amplifying circuit is arranged in the LM 234-type chip, the LM 234-type chip is fixedly connected to the circuit board 6, the positive electrode of the amplifying circuit is electrically connected with the positive electrode of the load circuit, and the negative electrode of the amplifying circuit is grounded;
the load circuit comprises a current limiting resistor, the current limiting resistor is electrically connected with the LED spotlight 5, the positive electrode of the load circuit is electrically connected with the positive electrode of the output end of the amplifying circuit, and the negative electrode of the load circuit is grounded.
The magnetic strip 9 is a ferrite permanent magnet material long and narrow NS level, the magnetic strip 9 is close to the pole 9-1 of the pole 4 and is far away from the pole 9-2 of the pole 4, and the distance between the magnetic strip 9 and the pole 4 is 3-5 mm.
The battery seat 7 is a national standard two-section 7# battery seat, one end of the battery seat 7 is connected with a battery in series, and the other end of the battery seat is led out of two positive and negative wires of the battery to be electrically connected with the circuit board 6.
The number of the magnetic columns 4 is 6, the 6 magnetic columns 4 are uniformly distributed below the strings and are 5-8mm away from the strings, the magnetic columns 4 are made of cast iron, so that larger magnetism can be reserved, and the performance and stability of the system are improved.
The coil 10 is a copper enameled wire.
The LED spotlight 5 is a bulb with a rated voltage of 3v, and can emit light beams.
The main components of the light-emitting device of the metal string guitar of the invention are as follows:
a plastic outer case 1 for protecting and accommodating a battery of the light emitting device, a battery holder 7, a magnetic stripe 9, a magnetic pole 4, a coil 10, and components;
the battery seat 7 is provided with a fixed battery and a power line is led out;
a magnetic stripe 9 for magnetizing the magnetic pole to make the magnetic pole have magnetism;
the magnetic column 4 is used for magnetizing the metal strings to enable the metal strings to have magnetism, and one magnetic column is arranged below each corresponding string;
the coil 10 is used for generating induced electromotive force, so that the subsequent signal amplification processing is facilitated, and one corresponding magnetic column is arranged;
the amplifying circuit is used for amplifying the signals generated by the coil and then driving the LED spotlight;
the LED spot lamps 5 are used for emitting light, and an LED spot lamp is arranged below the corresponding string;
the current limiting resistor is used for limiting a circuit in the load circuit and preventing the LED spotlight from being burnt out, and the corresponding LED spotlight is provided with a current limiting resistor.
The invention relates to a light-emitting device of a metal string guitar, which comprises the following working processes:
the N pole 9-1 of the magnetic stripe magnetizes the magnetic column 4, so that the lower end of the magnetic column 4 is provided with an S pole and the upper end is provided with an N pole. Since the metal strings are located 5-8mm above the magnetic pillars, the magnetic properties at the upper ends of the magnetic pillars 4 will magnetize the strings. The lower half part of the string is provided with an S pole, and the upper half part of the string is provided with an N pole, so that a magnetic force field is generated around the string. When the string above the post 4 and the coil 10 vibrates, the magnetic field of the coil 10 and the string has a relative movement. According to Lenz's law, a corresponding induced electromotive force is generated in the coil 10, and a small current is generated by connecting the opposite ends of the coil to the amplifying circuit of the circuit board 6. After the amplifying circuit is adopted, the current for driving the LED spotlight 5 can be generated, and the intensity of the relative motion can influence the magnitude of the corresponding induced electromotive force according to Lenz's law, so that the final driving current is influenced, and the effect that the brightness of the LED spotlight 5 changes along with the change of the vibration amplitude of the string can be generated.
The invention relates to a light-emitting device of a metal string guitar, which has the advantages that: compared with the prior naive decoration, the invention has more cool display effect, and increases fun in the process of learning the piano. The training of the string plucking force can be assisted, and the larger the string plucking force is, the brighter the LED spotlight is.
Claims (8)
1. The utility model provides a lighting device of metal string guitar, its characterized in that includes plastics outside casing (1), the cavity has been seted up to plastics outside casing (1) inside, the cavity horizontal direction is provided with buffer layer (8), buffer layer (8) are cut apart into upper cavity (1-1) and lower floor's cavity (1-2) with the cavity, buffer layer (8) are provided with magnetic stripe (9) near one side of upper cavity (1-1), lower floor's cavity (1-2) are provided with circuit board (6) and battery holder (7), circuit board (6) and battery holder (7) electric connection;
the magnetic column (4) and the LED spotlight (5) are embedded in the outer wall of the upper cavity, the magnetic column (4) penetrates out of the outer wall of the upper cavity (1-1), the bottom end of the magnetic column is connected with the buffer layer (8), and the coil (10) is wound on the side wall of the magnetic column (4) positioned in the upper cavity (1-1);
the LED spotlight (5) is electrically connected with the circuit board (6), and the coil (10) is electrically connected with the circuit board (6).
2. The light-emitting device of the metal string guitar according to claim 1, wherein mounting bayonets (2) are formed at two end parts of the plastic outer shell (1), the mounting bayonets (2) are U-shaped grooves, screw holes are formed in two side walls of the mounting bayonets (2), and positioning screws (3) are arranged in the screw holes.
3. The light-emitting device of the metal string guitar according to claim 1, wherein the circuit board (6) is provided with an amplifying circuit and a load circuit, the amplifying circuit is electrically connected with an induction circuit, the induction circuit comprises a magnetic column (4), a magnetic strip (9) and a coil (10), the positive electrode of the output end of the induction circuit is electrically connected with the positive electrode of the input end of the amplifying circuit, and the negative electrode of the induction circuit is grounded;
the amplifying circuit is arranged in the LM 234-type chip, the LM 234-type chip is fixedly connected to the circuit board (6), the positive electrode of the amplifying circuit is electrically connected with the positive electrode of the load circuit, and the negative electrode of the amplifying circuit is grounded;
the load circuit comprises a current limiting resistor, the current limiting resistor is electrically connected with the LED spotlight (5), the positive electrode of the load circuit is electrically connected with the positive electrode of the output end of the amplifying circuit, and the negative electrode of the load circuit is grounded.
4. The light-emitting device of the metal string guitar according to claim 1, characterized in that the magnetic strip (9) is of a ferrite permanent magnet material long and narrow NS level, the magnetic strip (9) is close to an extremely N pole (9-1) of the magnetic post (4), is far from an extremely S pole (9-2) of the magnetic post (4), and the distance between the magnetic strip (9) and the magnetic post (4) is 3-5 mm.
5. The light-emitting device of the metal string guitar according to claim 1, wherein the battery holder (7) is a national standard two-section 7# battery holder, one end of the battery holder (7) is connected with a battery in series, and the other end of the battery holder is led out of two positive and negative wires of the battery to be electrically connected with the circuit board (6).
6. The light-emitting device of the metal string guitar according to claim 1, wherein the number of the magnetic columns (4) is 6, the 6 magnetic columns (4) are uniformly distributed below strings and are 5-8mm away from the strings, and the magnetic columns (4) are made of cast iron.
7. A lighting device of a metal string guitar according to claim 1, characterized in that said coil (10) is a copper enameled wire.
8. A light emitting device of a metal string guitar according to claim 1, characterized in that the LED spot light (5) is a lamp bulb with a rated voltage of 3 v.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011068994.2A CN112216251B (en) | 2020-09-30 | 2020-09-30 | Light-emitting device of metal string guitar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011068994.2A CN112216251B (en) | 2020-09-30 | 2020-09-30 | Light-emitting device of metal string guitar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112216251A CN112216251A (en) | 2021-01-12 |
| CN112216251B true CN112216251B (en) | 2024-02-06 |
Family
ID=74052785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011068994.2A Active CN112216251B (en) | 2020-09-30 | 2020-09-30 | Light-emitting device of metal string guitar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112216251B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0627963A (en) * | 1992-01-14 | 1994-02-04 | Fuerunandesu:Kk | Electronic stringed instrument |
| US5610357A (en) * | 1995-10-06 | 1997-03-11 | Frank-Braun; Michael | Stringed musical instrument pickup with two electromagnetic coil assemblies having toothed cores |
| CN103366724A (en) * | 2013-06-15 | 2013-10-23 | 龙高潮 | Multi-tone multi-sound-effect dual-part single-string instrument with music lamp |
| CN207182889U (en) * | 2017-08-29 | 2018-04-03 | 深圳市生辉煌电子有限公司 | A kind of luminous guitar |
| CN108694925A (en) * | 2018-06-01 | 2018-10-23 | 德阳好哲创意文化科技有限公司 | The night vision guitar of function is flashed with optical screen |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8901409B2 (en) * | 2012-03-22 | 2014-12-02 | Marcus Gustaf Helgesson | Stringed musical instrument with string activated light emitting members |
-
2020
- 2020-09-30 CN CN202011068994.2A patent/CN112216251B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0627963A (en) * | 1992-01-14 | 1994-02-04 | Fuerunandesu:Kk | Electronic stringed instrument |
| US5610357A (en) * | 1995-10-06 | 1997-03-11 | Frank-Braun; Michael | Stringed musical instrument pickup with two electromagnetic coil assemblies having toothed cores |
| CN103366724A (en) * | 2013-06-15 | 2013-10-23 | 龙高潮 | Multi-tone multi-sound-effect dual-part single-string instrument with music lamp |
| CN207182889U (en) * | 2017-08-29 | 2018-04-03 | 深圳市生辉煌电子有限公司 | A kind of luminous guitar |
| CN108694925A (en) * | 2018-06-01 | 2018-10-23 | 德阳好哲创意文化科技有限公司 | The night vision guitar of function is flashed with optical screen |
Non-Patent Citations (1)
| Title |
|---|
| 基于振动信号检测的弦乐器视听强化应用设计;孙菁阳 等;传感器与微系统(第07期);全文 * |
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| Publication number | Publication date |
|---|---|
| CN112216251A (en) | 2021-01-12 |
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