CN113628599A - Foldable music keyboard - Google Patents
Foldable music keyboard Download PDFInfo
- Publication number
- CN113628599A CN113628599A CN202110804363.0A CN202110804363A CN113628599A CN 113628599 A CN113628599 A CN 113628599A CN 202110804363 A CN202110804363 A CN 202110804363A CN 113628599 A CN113628599 A CN 113628599A
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- CN
- China
- Prior art keywords
- flexible
- module
- circuit
- transparent substrate
- rigid
- 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.)
- Pending
Links
- 239000000758 substrate Substances 0.000 claims abstract description 27
- 238000001035 drying Methods 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims 2
- 239000000806 elastomer Substances 0.000 claims 2
- 239000010408 film Substances 0.000 description 22
- 238000010586 diagram Methods 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- XRBURMNBUVEAKD-UHFFFAOYSA-N chromium copper nickel Chemical compound [Cr].[Ni].[Cu] XRBURMNBUVEAKD-UHFFFAOYSA-N 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 241000270728 Alligator Species 0.000 description 1
- 229920000144 PEDOT:PSS Polymers 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 238000001548 drop coating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/32—Constructional details
- G10H1/34—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Push-Button Switches (AREA)
Abstract
The invention discloses a flexible and foldable music keyboard, and relates to the technical field of portable musical instrument design. The flexible foldable music keyboard comprises a power module, a rigid module and a flexible module; the power supply module is used for supplying power to the rigid module and the flexible module; the rigid module comprises a first circuit module arranged on the rigid circuit board; the first circuit module comprises a buzzer; the flexible module comprises a second circuit module arranged on a flexible transparent substrate; the second circuit module comprises a plurality of flexible resistors and a node switch; one end of each flexible resistor is connected with one node switch; the flexible resistors are connected in series, and the node switches are connected in parallel. The flexible foldable music keyboard circuit provided by the invention is simple in structure, and can simplify the equipment structure, reduce the equipment volume and improve the portability.
Description
Technical Field
The invention relates to the technical field of portable musical instrument design, in particular to a foldable music keyboard.
Background
The hand roll piano is a flexible music keyboard, the existing hand roll piano mostly takes silicon rubber and ABS resin as materials, a sound box is arranged in the piano keyboard, and an interface can be connected to an independent sound box or an earphone. Can be used for practicing sound, fingering and hearing in places with narrow travel or space. However, in the conventional hand-roll piano, the circuit and the skeleton of the hand-roll piano are mostly made of alloy (such as copper-chromium-nickel), so that the equipment volume is large, the portability is poor, and the alloy (such as copper-chromium-nickel) material is expensive.
Disclosure of Invention
The invention aims to provide a flexible and foldable music keyboard, which can realize low-cost mass production and obtain a music keyboard with good flexibility.
In order to achieve the above object, an embodiment of the present invention provides a flexible and foldable music keyboard, including a power module, a rigid module, and a flexible module;
the power supply module is used for supplying power to the rigid module and the flexible module;
the rigid module comprises a first circuit module arranged on the rigid circuit board; the first circuit module comprises a buzzer;
the flexible module comprises a second circuit module arranged on a flexible transparent substrate; the second circuit module comprises a plurality of flexible resistors and a node switch; one end of each flexible resistor is connected with one node switch; the flexible resistors are connected in series, and the node switches are connected in parallel.
Preferably, the node switch includes a conductive thin film and an elastic body having one end adhered to the flexible transparent substrate and the other end adhered to the conductive thin film.
Preferably, the flexible foldable music keyboard further comprises a charging clip; one end of the charging clip is connected with the first circuit module, and the other end of the charging clip is clamped on the flexible transparent substrate; the conductive part of the charging clip is tightly connected with the second circuit module.
Preferably, the first circuit module further comprises a timer; the power supply module is connected with a VCC port of the timer; the buzzer is connected with the Q output end of the timer.
Preferably, the flexible resistor is formed by dropping conductive ink on the flexible transparent substrate and forming a film through slow drying.
Preferably, the conductive film is formed by adding several kinds of ionic solutions with preset concentrations into an aqueous solution to obtain a conductive ink with high conductivity, dripping the conductive ink on a transparent substrate, and slowly drying to form a film.
Compared with the prior art, the invention has the following beneficial effects:
the circuit of the invention has simple structure, can simplify the structure of the equipment, reduce the volume of the equipment and improve the portability;
the conductive film provided by the invention is formed by adding a plurality of ionic solutions with preset concentrations into an aqueous solution to obtain conductive ink with high conductivity, dripping the conductive ink on a transparent substrate, and slowly drying to form a film. The conductive ink material is degradable and has good biocompatibility.
The flexible resistor provided by the invention is formed by dripping conductive ink on the flexible transparent substrate and slowly drying to form a film. PSS can be selected as the conductive ink, so that the product has a transparent appearance, and is more exquisite and attractive compared with a traditional hand-rolled piano.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a flexible and foldable musical keyboard according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a circuit structure of a flexible and foldable music keyboard according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a node switch in a flexible and foldable music keyboard according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be understood that the step numbers used herein are for convenience of description only and are not used as limitations on the order in which the steps are performed.
It is to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The terms "comprises" and "comprising" indicate the presence of the described features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The term "and/or" refers to and includes any and all possible combinations of one or more of the associated listed items.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a flexible and foldable music keyboard according to an embodiment of the present invention. The embodiment of the invention provides a flexible and foldable music keyboard, which comprises a power module 1, a rigid module 2 and a flexible module 3;
the power module 1 is used for supplying power to the rigid module 2 and the flexible module 3;
the rigid module 2 comprises a first circuit module 22 arranged on a rigid circuit board 21; the first circuit module 22 includes a buzzer 221;
the flexible module 3 comprises a second circuit module 32 disposed on a flexible transparent substrate 31; the second circuit module 32 comprises a plurality of flexible resistors 321 and node switches; one end of each flexible resistor 321 is connected to a node switch; the flexible resistors 321 are connected in series, and the node switches are connected in parallel.
Preferably, the node switch includes a conductive film 322 and an elastic body 323 (shown in fig. 3), and one end of the elastic body 323 is adhered to the flexible transparent substrate 31 and the other end is adhered to the conductive film 322.
Preferably, the flexible foldable music keyboard further comprises a charging clip 4; one end of the charging clip 4 is connected with the first circuit module 22, and the other end is clamped on the flexible transparent substrate 31; the conductive part of the charging clip 4 is tightly connected to the second circuit module 32.
In this embodiment, the charging clip is an alligator clip with a smooth interface, and can sufficiently contact with the conductive film to prevent contact failure.
Preferably, the first circuit module 22 further comprises a timer 222; the power module 1 is connected to a VCC port of the timer 222; the buzzer 221 is connected to the Q output of the timer 222.
Preferably, the flexible resistor 321 is formed by dropping conductive ink on a flexible transparent substrate, and forming a film through slow drying.
Preferably, the conductive film 322 is formed by adding several kinds of ionic solutions with preset concentrations into an aqueous solution to obtain a conductive ink with high conductivity, dropping the conductive ink on a transparent substrate, and slowly drying to form a film.
In one embodiment, the power module 1 is a DC power source, and includes a positive power source and a negative power source 2, the power module 1 is connected to the rigid module 2 via a wire according to the circuit shown in FIG. 1,
the rigid module 2 comprises a first circuit module 22 arranged on a rigid circuit board 21; the first circuit module 22 includes a buzzer 221; the rigid circuit board 21 is a bread board or a PCB board.
The flexible resistor 321 is formed by dropping conductive ink on a flexible transparent substrate and slowly drying the conductive ink to form a film. Specifically, the conductive ink (such as PEDOT: PSS) is dripped on a flexible transparent substrate (such as a PET plate) by using the processes of dripping, spin coating and the like, and the flexible transparent substrate is slowly dried at room temperature to form a film and cut into a flexible resistor with the required resistance.
In one embodiment, the conductive ink with low conductivity is obtained by doping or the like, the conductive ink is dropped on a flexible transparent substrate, a film is slowly formed in a room temperature or low temperature oven, and finally, a conductive film with the required resistance is obtained by cutting or wiping with an organic solvent (such as ethanol) to be used as the flexible resistor.
The conductive thin film 322 is formed by adding a plurality of ionic solutions with preset concentrations into an aqueous solution to obtain a conductive ink with high conductivity, dripping the conductive ink on a transparent substrate, and slowly drying to form a film. Specifically, high-conductivity conductive ink is obtained by doping different ionic solutions in different concentrations in an aqueous solution, a film is formed on a transparent substrate by means of drop coating, and the transparent substrate is cut into a conductive film with a required shape.
In one embodiment, a conductive ink with high conductivity is obtained by adding several ionic solutions with preset concentrations into an aqueous solution, the conductive ink is dripped on a flexible transparent substrate, a film is slowly formed in an oven at room temperature or low temperature, and finally a conductive film with a required shape is obtained by cutting or wiping with an organic solvent (such as ethanol) and is used for connecting each part of a circuit.
In this embodiment, the elastic body is a sponge having a thickness of about 2mm, and one end of the elastic body is adhered to the flexible transparent substrate 8 and the other end is adhered to the conductive film 9, thereby forming the key.
Referring to fig. 2, fig. 2 is a schematic circuit structure diagram of a flexible and foldable music keyboard according to an embodiment of the present invention. In this embodiment, the timer 222 of the first circuit module 22 is a 555 timer, and the power module 1 is connected to the VCC port of the timer 222; the buzzer 221 is connected to the Q output of the timer 222. The direct current signal is converted into an alternating current signal through the oscillating circuit, the circuit is connected with the buzzer, the resistors and the capacitors in a set mode, and the frequency of the oscillating circuit is changed by changing the sizes of the resistors and the capacitors connected into the circuit.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (6)
1. A flexible foldable music keyboard is characterized by comprising a power supply module, a rigid module and a flexible module;
the power supply module is used for supplying power to the rigid module and the flexible module;
the rigid module comprises a first circuit module arranged on the rigid circuit board; the first circuit module comprises a buzzer;
the flexible module comprises a second circuit module arranged on a flexible transparent substrate; the second circuit module comprises a plurality of flexible resistors and a node switch; one end of each flexible resistor is connected with one node switch; the flexible resistors are connected in series, and the node switches are connected in parallel.
2. The flexible foldable musical keyboard of claim 1, wherein the node switches comprise a conductive film and an elastomer, one end of the elastomer being adhered to the flexible transparent substrate and the other end being adhered to the conductive film.
3. The flexible foldable musical keyboard of claim 1, further comprising a charging clip; one end of the charging clip is connected with the first circuit module, and the other end of the charging clip is clamped on the flexible transparent substrate; the conductive part of the charging clip is tightly connected with the second circuit module.
4. The flexible foldable musical keyboard of claim 1, wherein the first circuit block further comprises a timer; the power supply module is connected with a VCC port of the timer; the buzzer is connected with the Q output end of the timer.
5. The flexible and foldable musical keyboard of claim 1, wherein the flexible resistors are formed by dropping conductive ink on the flexible transparent substrate and slowly drying the conductive ink to form a film.
6. The flexible foldable musical keyboard according to claim 2, wherein the conductive film is formed by adding several ionic solutions with preset concentrations to an aqueous solution to obtain a conductive ink with high conductivity, dropping the conductive ink on a transparent substrate, and slowly drying to form a film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110804363.0A CN113628599A (en) | 2021-07-16 | 2021-07-16 | Foldable music keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110804363.0A CN113628599A (en) | 2021-07-16 | 2021-07-16 | Foldable music keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113628599A true CN113628599A (en) | 2021-11-09 |
Family
ID=78379901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110804363.0A Pending CN113628599A (en) | 2021-07-16 | 2021-07-16 | Foldable music keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113628599A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4440990A (en) * | 1982-05-19 | 1984-04-03 | Smk Electronics Corporation, Usa | Membrane keyboard assembly |
| US20040159226A1 (en) * | 2003-02-10 | 2004-08-19 | Jung-O Koo | Keyboard and method for manufacturing the same |
| US20050238405A1 (en) * | 2002-03-12 | 2005-10-27 | Eleksen Limited | Flexible foldable keyboard |
| CN102723074A (en) * | 2012-03-28 | 2012-10-10 | 深圳市中凯鑫科技有限公司 | Separable and foldable integrated musical instrument and keyboard manufacturing technology |
| CN202855291U (en) * | 2012-09-25 | 2013-04-03 | 江苏物联网研究发展中心 | Foldable music keyboard |
| CN109085929A (en) * | 2018-08-08 | 2018-12-25 | 湖南永爱生物科技有限公司 | Portable entry device |
| CN210200067U (en) * | 2019-03-25 | 2020-03-27 | 唐自延 | Retractable piano teaching exerciser |
-
2021
- 2021-07-16 CN CN202110804363.0A patent/CN113628599A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4440990A (en) * | 1982-05-19 | 1984-04-03 | Smk Electronics Corporation, Usa | Membrane keyboard assembly |
| US20050238405A1 (en) * | 2002-03-12 | 2005-10-27 | Eleksen Limited | Flexible foldable keyboard |
| US20040159226A1 (en) * | 2003-02-10 | 2004-08-19 | Jung-O Koo | Keyboard and method for manufacturing the same |
| CN102723074A (en) * | 2012-03-28 | 2012-10-10 | 深圳市中凯鑫科技有限公司 | Separable and foldable integrated musical instrument and keyboard manufacturing technology |
| CN202855291U (en) * | 2012-09-25 | 2013-04-03 | 江苏物联网研究发展中心 | Foldable music keyboard |
| CN109085929A (en) * | 2018-08-08 | 2018-12-25 | 湖南永爱生物科技有限公司 | Portable entry device |
| CN210200067U (en) * | 2019-03-25 | 2020-03-27 | 唐自延 | Retractable piano teaching exerciser |
Non-Patent Citations (1)
| Title |
|---|
| 北京工业大学微型计算机研究开发应用中心编辑: "《TP80TS微型计算机教学实验系统实验指导书》", 北京工业大学微型计算机研究开发应用中心, pages: 98 - 99 * |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211109 |