CN210722439U - Electronic accordion - Google Patents

Abstract

The utility model relates to an electron accordion mainly comprises keyboard assembly, bellows and bass, has riveted bellows in the below of keyboard assembly, has bass, its characterized in that in the below riveting of bellows: the keyboard assembly is communicated with the inside of the air box through an air pipe, and the air box is also provided with a sensor pipeline connected with the pressure sensor on the main circuit board. The utility model has the advantages of scientific and reasonable design, simple structure has, the audio is outstanding, easily realize, is an electron accordion that has higher novelty.

Description

Electronic accordion

Technical Field

The utility model belongs to the musical instrument field relates to an accordion, especially an electron accordion.

Background

The accordion, as a foreign musical instrument, has been popularized in China as a "popular" musical instrument after many decades of prosperous development since the early introduction of the twentieth century into China. In the new century, with the development of the culture market and the diversification of musical instruments, more extensive possibilities are brought to the performance form of the accordion and the creation of musical works. In order to change the current situation of the development of the accordion and better promote the development of the cause of the accordion, an optimal conjunction point for combining the accordion with the market and the fashion element is urgently needed to be found, and the birth of the electronic accordion is just met.

The electronic accordion, as a revolutionary innovation of the accordion in history, not only brings richer audio-visual effects to the acoustic design and musical performance of the accordion, but also brings an innovation in thinking, namely fashion, transboundary and fusion.

At present, electronic accordion used in China is imported abroad, and the main manufacturer is the Nippon Rowland company. The electronic accordion manufactured abroad is expensive, the internal structure is relatively complex, and the tone quality effect is poorer than that of the traditional accordion.

The most important point is that the existing electronic accordion has lower playing experience, the existing electronic accordion cannot realize the change of pronunciation by pulling and closing the bellows by a player like the traditional accordion, the existing electronic accordion simulates the pronunciation realized by the response of the bellows through the manually adjusted plastic valve, and the bellows has no functional function on the existing electronic accordion, and can produce the sound by a simple key even if the bellows is not pulled, so the existing electronic accordion structure cannot meet the playing requirements of the accordion players, cannot enable the players to really experience the playing fun, and has lower playing experience.

Therefore, it is necessary to develop an accordion with reasonable structure, relatively low cost, excellent sound effect and improved playing experience, and the development of the accordion art in China and even the world is actively promoted.

Through a search for a patent publication, no patent publication that is the same as the present patent application is found.

Disclosure of Invention

An object of the utility model is to overcome prior art not enough, provide an electron accordion rational in infrastructure, the audio is outstanding, promote to play experience sense, easily realize.

The utility model provides a its technical problem take following technical scheme to realize:

the utility model provides an electron accordion mainly comprises keyboard assembly, bellows and bass, has riveted the bellows in the below of keyboard assembly, has bass, its characterized in that in the below riveting of bellows: the keyboard assembly is communicated with the inside of the air box through an air pipe, and the air box is also provided with a sensor pipeline connected with the pressure sensor on the main circuit board.

The keyboard assembly consists of a keyboard case, a cover, a keyboard mechanical transmission mechanism, a sound converter circuit board, a function key circuit board, a main circuit board, a display screen, an external jack and a high pitch loudspeaker, wherein the keyboard mechanical transmission mechanism is arranged on the vertical surface of the keyboard case, the cover is embedded on the horizontal plane of the keyboard case, the sound converter is arranged at one end, close to the vertical surface, of the cover, function keys are arranged at two ends of the sound converter, a sound emitting hole is also formed in the cover, the sound converter circuit board connected with the sound converter through a lead is arranged at the position, opposite to the sound converter, of the bottom surface of the cover, the function key circuit board connected with the function keys through leads is arranged at the position, opposite to the function keys at two sides, of the keyboard case, the display screen and the external jack are respectively arranged at two sides of the keyboard case, and the circuit boards, the display screen and the external jack are all connected with the main circuit board arranged in the keyboard case through leads, the upper end of the main circuit board is provided with a high pitch loudspeaker through a mounting bracket.

Moreover, the keyboard mechanical transmission mechanism consists of a key button plate, a keyboard machine, a keyboard mechanical bracket and a keyboard circuit board; the keyboard machine is composed of a plurality of mechanical units, each mechanical unit is composed of a key button, a connecting rod and an air port blocking block, the key button is fixedly arranged on the upper end face of one end of the connecting rod, the air port blocking block is fixedly arranged on the lower end face of the other end of the connecting rod, and the connecting rod is rotatably arranged on a mechanical support; the keyboard machine is arranged on the keyboard mechanical support, the air port blocking block on the keyboard machine is blocked on the air port formed on the keyboard mechanical support, and the key button controls the lifting of the air port blocking block so as to control the opening and closing of the air port; the keyboard box is characterized in that a keyboard button plate is embedded in the vertical surface of the keyboard box, the top of each key button extends out of a key button hole formed in the keyboard button plate, the bottom of each key button is connected with a corresponding conductive elastic button, and each conductive elastic button is installed on a keyboard circuit board; when the conductive elastic button moves downwards when the key button is pressed, the conductive elastic button is contacted with the keyboard circuit board to generate a conducting signal.

And the keyboard mechanical support is composed of an injection molding integrated mounting part and an air cavity part, a hole for connecting the bottom of the key button with the conductive elastic button is arranged on the mounting part, two rows of air ports communicated with the inside of the air cavity part are uniformly distributed on the upper end surface of the air cavity part at intervals, and an air pipe socket communicated with the inside of the air cavity part is arranged at one end of the air cavity part.

Moreover, the air box consists of an outer frame, a corrugated box body, an air box upper cover, an air box lower cover, a battery cover, an air pipe, a sensor pipeline, a first steering socket, a second steering socket and an air release mechanism, outer frames are respectively arranged at the upper end and the lower end of the corrugated box body, an upper cover of an air box is arranged on the outer frame at the upper end, the upper cover of the air box consists of a battery jar for installing a battery and an installation platform, the battery jar is buckled with a battery cover, an overload protector connected with the battery is also arranged in the battery jar, an air pipe, a sensor pipeline and a first steering socket are arranged on the mounting platform, one end of the air pipe is communicated with the interior of the corrugated case body, the other end of the air pipe is connected with an air pipe socket on the keyboard mechanical support, one end of the sensor pipeline is communicated with the interior of the corrugated box body, and the other end of the sensor pipeline is connected to a pressure sensor arranged on the main circuit board; the outer frame at the lower end is provided with an air box lower cover, one end of the air box lower cover is provided with a second steering socket connected with the first steering socket through a wire, and the other end of the air box lower cover is provided with an air leakage mechanism.

The bass is mainly composed of a bass shell, a bass key button assembly, a sound box and a bottom plate, the bass key button assembly is inserted into the front end face of the bass shell, the sound box is arranged in the bass shell and connected with a second adapter socket through a lead, and the bottom plate is installed at the bottom of the bass shell through screws.

And a Bluetooth module connected with the main circuit board is also arranged in the bass key button assembly.

The loudspeaker box is composed of a box body, a woofer, a sound guide pipe and collodion, wherein the upper end face of the box body is provided with a mounting hole, the woofer is embedded in the mounting hole, the side wall of the box body is provided with a sound outlet hole, the sound guide pipe is inserted in the sound outlet hole in the box body, and the collodion covers the sound guide pipe.

And the keyboard box, the air box outer frame and the bass shell are all made of wood.

Moreover, the battery is a 7.4V and 10000mAh lithium battery.

The utility model has the advantages that:

1. this electron accordion, through the structural design who simulates bellows response with the plastics valve that adopts the manual regulation now for adopting the acoustic response of the accurate simulation accordion bellows of natural air flow system, make the sounding of electron accordion more natural, the audio is outstanding, has strengthened the use impression of player when playing. When a key button is pressed down, an air port blocking block of a lever system (a lever structure consisting of the key button, an air port blocking block and a connecting rod and a mechanical support) is lifted, so that air flows into an air chamber part of the keyboard mechanical support and then flows into the air chamber part of the air chamber through an air pipe, and a corrugated box body on the air chamber naturally moves along with the air flow. Meanwhile, the pressure sensor accurately senses the air pressure in the air box through the matching of the sensor pipeline and the pressure sensor so as to control parameters such as tone, dynamics, volume and the like, thereby achieving the effect of simulating the tone of the accordion.

2. According to the electronic accordion, the battery for supplying power is designed to be the lithium battery, the specification of the battery is 7.4V and 10000mAh, the battery can supply power for 9 hours, and a large-scale concert can be supported completely.

3. According to the electronic accordion, through the setting of the Bluetooth function, when the electronic accordion is used, the accordion can be edited and controlled by ipad, a computer (MacOS and Windows) and a mobile phone (Android and ios), so that the use requirements of different users are met, and a better playing effect is achieved.

4. The electronic accordion is designed into a left loudspeaker and a right loudspeaker (a left bass loudspeaker and a right treble loudspeaker) by the existing accordion only provided with the bass loudspeaker, so that the sounding level is richer, and the sounding effect is enhanced.

5. This electron accordion through with keyboard musical instrument case, bellows frame and bass shell by plastic material design for wooden material, has guaranteed the corresponding effect of sound. Compared with the material of plastics, the penetration rate of the sound is stronger, and the tone quality of the sound are ensured.

6. The electronic accordion can make the sound more vigorous and enhance the playing effect by the arrangement of the collodion on the sound guide tube of the bass loudspeaker.

7. The utility model has the advantages of scientific and reasonable design, simple structure has, the audio is outstanding, easily realize, is an electron accordion that has higher novelty.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the keyboard assembly of the present invention;

FIG. 3 is a schematic structural view of the keyboard assembly without a cover, a mechanical transmission mechanism, a circuit board of a sound converter and a circuit board of a function key;

fig. 4 is a schematic structural view of the mechanical transmission mechanism of the keyboard of the present invention;

fig. 5 is an exploded view of the mechanical transmission mechanism of the keyboard of the present invention;

fig. 6 is a side view of the mechanical transmission mechanism of the keyboard of the present invention;

FIG. 7 is a schematic structural view (top view) of an air box according to the present invention;

FIG. 8 is a schematic structural view (viewed from below) of the bellows of the present invention;

FIG. 9 is an exploded view of the bellows of the present invention;

fig. 10 is a schematic structural view of the bass of the present invention (omitting the bottom plate);

fig. 11 is a schematic structural view of the bass of the present invention;

fig. 12 is an exploded view of the bass of the present invention;

fig. 13 is a schematic view of the internal structure of the bass sound box of the present invention;

fig. 14 is a schematic block diagram of the circuit of the present invention.

Description of the reference numerals

1-keyboard assembly, 2-air box, 3-bass, 4-function key, 5-sound converter, 6-sound emitting hole, 7-keyboard mechanical transmission mechanism, 8-vertical surface of keyboard box, 9-display screen, 10-keyboard box, 11-external jack, 12-high pitch loudspeaker, 13-air pipe socket, 14-key button plate, 15-key button, 16-air cavity part, 17-air port blocking block, 18-mechanical support, 19-mounting part, 20-conductive elastic button, 21-keyboard circuit board, 22-air pipe, 23-first steering socket, 24-outer frame, 25-corrugated box body, 26-battery cover, 27-overload protector, 28-sensor pipeline, 29-air box lower cover, 30-a second steering socket, 31-a spring pressing sheet, 32-a driving rod, 33-a battery, 34-a bass key button assembly, 35-a sound box, 36-a bass shell, 37-a bottom plate, 38-a mounting hole, 39-a box body, 40-a bass loudspeaker, 41-collodion cotton and 42-a sound guide tube.

Detailed Description

The embodiments of the present invention will be described in detail with reference to the accompanying drawings:

the utility model provides an electron accordion, mainly comprises keyboard assembly 1, bellows 2 and bass 3, and the below riveting of keyboard assembly has the bellows, and the below riveting of bellows has the bass, and its innovation part lies in: the keyboard assembly is connected to the interior of the air box by an air tube 22, and a sensor tube 28 is provided on the air box for connection to a pressure sensor on the main circuit board.

The keyboard assembly comprises a keyboard case 10, a cover, a keyboard mechanical transmission mechanism 7, a sound converter circuit board, a function key circuit board, a main circuit board, a display screen 9, an external jack 11 and a high pitch loudspeaker 12, wherein the vertical surface 8 of the keyboard case is provided with the keyboard mechanical transmission mechanism, the horizontal surface of the keyboard case is embedded with the cover, one end of the cover close to the vertical surface is provided with the sound converter 5, two ends of the sound converter are provided with the function keys 4, sound holes 6 are also formed in the cover, the sound converter circuit board connected with the sound converter through a lead is arranged at the position of the bottom surface of the cover opposite to the sound converter, the function key circuit board connected with the function keys through a lead is arranged at the position of the bottom surface of the cover opposite to the function keys at two sides, the display screen and the external jack are respectively arranged at two sides of the keyboard case, and all the circuit boards, the display screen and the external jacks are connected with the main circuit board arranged in the keyboard case through leads, the upper end of the main circuit board is provided with a high pitch loudspeaker through a mounting bracket. The display screen is an LCD display screen.

The external jacks comprise charger jacks of alternating current/direct current and jacks for connecting external equipment such as an external sound box.

The keyboard mechanical transmission mechanism consists of a key button plate 14, a keyboard machine, a keyboard mechanical support and a keyboard circuit board 21; the keyboard machine is composed of a plurality of mechanical units, each mechanical unit is composed of a key button 15, a connecting rod 43 and an air port blocking block 17, the key button is fixedly arranged on the upper end face of one end of the connecting rod, the air port blocking block is fixedly arranged on the lower end face of the other end of the connecting rod, and the connecting rod is rotatably arranged on a mechanical support 18; the keyboard machine is arranged on the keyboard mechanical support, the air port blocking block on the keyboard machine is blocked on the air port formed on the keyboard mechanical support, and the key button controls the lifting of the air port blocking block so as to control the opening and closing of the air port; the keyboard case is embedded with a keyboard plate on the vertical surface, the top of each key button extends out of a key button hole formed on the keyboard plate, the bottom of each key button is connected with a corresponding conductive elastic button 20, and each conductive elastic button is arranged on a keyboard circuit board; when the conductive elastic button moves downwards when the key button is pressed, the conductive elastic button is contacted with the keyboard circuit board to generate a conducting signal.

The keyboard mechanical support is composed of an injection molding integrated mounting part 19 and an air cavity part 16, a hole for connecting the bottom of the key button with the conductive elastic button is arranged on the mounting part, two rows of air ports communicated with the inside of the air cavity part are evenly distributed on the upper end surface of the air cavity part at intervals, and an air pipe socket communicated with the inside of the air cavity part is arranged at one end of the air cavity part.

The air box consists of an outer frame 24, a corrugated box body 25, an air box upper cover, an air box lower cover 29, a battery 33, a battery cover 26, an air pipe, a sensor pipeline, a first steering socket 23, a second steering socket 30 and an air release mechanism, outer frames are respectively arranged at the upper end and the lower end of the corrugated box body, an upper cover of an air box is arranged on the outer frame at the upper end, the upper cover of the air box consists of a battery jar for installing a battery and an installation platform, the battery jar is buckled with a battery cover, an overload protector 27 connected with the battery is also arranged in the battery jar, an air pipe, a sensor pipeline and a first steering socket are arranged on the mounting platform, one end of the air pipe is communicated with the interior of the corrugated case body, the other end of the air pipe is connected with an air pipe socket 13 on the keyboard mechanical support, one end of the sensor pipeline is communicated with the interior of the corrugated box body, and the other end of the sensor pipeline is connected to a pressure sensor arranged on the main circuit board; the outer frame at the lower end is provided with an air box lower cover, one end of the air box lower cover is provided with a second steering socket connected with the first steering socket through a wire, and the other end of the air box lower cover is provided with an air leakage mechanism. This mechanism of disappointing is used for discharging the gas in the accordion bellows, and it generally comprises the hole of disappointing of system on the bellows lower cover, spring preforming 31 and actuating lever 32, is provided with the spring preforming in the bottom in the hole of disappointing, and the one end crimping of this spring preforming is in the hole of disappointing, and the other end perk, when pressing down the actuating lever of installing in the bass bottom, the actuating lever will stick up the end and push down to expose the hole of disappointing, reach the purpose of disappointing.

The bass mainly comprises a bass shell 36, a bass key button assembly 34, a sound box 35 and a bottom plate 37, wherein the bass key button assembly is inserted on the front end face of the bass shell, the sound box is arranged in the bass shell and connected with the second adapter socket through a lead, and the bottom plate is arranged at the bottom of the bass shell through screws.

And a Bluetooth module connected with the main circuit board is also arranged in the bass key button assembly.

The sound box is composed of a box body 39, a woofer 40, a sound guide tube 42 and collodion 41, wherein the upper end face of the box body is provided with a mounting hole 38, the woofer is embedded in the mounting hole, the side wall of the box body is provided with a sound outlet hole, the sound guide tube is inserted in the sound outlet hole in the box body, and the collodion covers the sound guide tube.

The keyboard musical instrument case, the air box outer frame and the bass shell are all made of wood.

The battery is a 7.4V and 10000mAh lithium battery.

The circuit board part for realizing the function of the electronic accordion comprises a main circuit board (comprising an electronic chip, a pressure sensor and an amplifying module), a sound changer circuit board, a function key circuit board, a bass circuit board in a bass key button assembly and the like, which are all electronic kits produced by DAK Digital Audio Kit company and have the model of DAK-DA 01.

Principle description of the circuit part:

when a left-hand keyboard and a right-hand keyboard (a left-hand bass keyboard and a right-hand keyboard) operate, along with the stretching and retracting actions of the air box, the air pressure in the air box is conducted to the pressure sensor on the main circuit board through the sensor pipeline, and the pressure sensor senses different pressures, so that the high pitch loudspeaker on the keyboard assembly and the low pitch loudspeaker on the bass accurately emit corresponding sounds. The electronic chip conducts all display signals to a user interface (an LCD display screen) for displaying according to signals generated by the pressure sensor, can display on a mobile phone interface of a user through Bluetooth, conducts sound signals to the amplification module, and then the amplification module is connected with the high pitch loudspeaker and the low pitch loudspeaker for amplifying and outputting sound.

The power supply part comprises two power supply modes, wherein one power supply mode is used for supplying power to the electronic accordion through alternating current/direct current, and the other power supply mode is used for supplying power to the electronic accordion through an internal self-contained battery. The power is electrified and then supplies power to the electronic chip, the Bluetooth module, the display screen and the amplifying module, and mutual signal transmission is realized.

The utility model discloses mainly protected the electronic accordion of a key button formula, it only explains the improvement part with the accordion of key button formula as the example, and its main innovation point is applicable to the accordion of keyboard formula equally, and to technical personnel in the field, the utility model discloses an innovation point is that the conversion between key button accordion and the accordion of keyboard is easy to understand and realize.

Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.

Claims (9)

1. The utility model provides an electron accordion mainly comprises keyboard assembly, bellows and bass, has riveted the bellows in the below of keyboard assembly, has bass, its characterized in that in the below riveting of bellows: the keyboard assembly is communicated with the inside of the air box through an air pipe, and the air box is also provided with a sensor pipeline connected with the pressure sensor on the main circuit board.

2. An electronic accordion according to claim 1, wherein: the keyboard assembly comprises a keyboard box, a keyboard cover, a keyboard mechanical transmission mechanism, a sound changer circuit board, a function key circuit board, a main circuit board, a display screen, an external jack and a high pitch loudspeaker, wherein the keyboard mechanical transmission mechanism is arranged on the vertical surface of the keyboard box, the keyboard cover is embedded on the horizontal surface of the keyboard box, the sound changer is arranged at one end, close to the vertical surface, of the keyboard cover, the function keys are arranged at two ends of the sound changer, a sound playing hole is also formed in the keyboard cover, the sound changer circuit board connected with the sound changer through a lead is arranged at the position, opposite to the sound changer, of the bottom surface of the keyboard cover, the function key circuit board connected with the function keys through leads is arranged at the position, opposite to the function keys at two sides, of the keyboard box, the display screen and the external jack are respectively arranged at two sides of the keyboard box, and all the circuit board, the display screen and the external jack are connected with the main circuit board arranged in the keyboard box, the upper end of the main circuit board is provided with a high pitch loudspeaker through a mounting bracket.

3. An electronic accordion according to claim 2, wherein: the keyboard mechanical transmission mechanism consists of a key button plate, a keyboard machine, a keyboard mechanical support and a keyboard circuit board; the keyboard machine is composed of a plurality of mechanical units, each mechanical unit is composed of a key button, a connecting rod and an air port blocking block, the key button is fixedly arranged on the upper end face of one end of the connecting rod, the air port blocking block is fixedly arranged on the lower end face of the other end of the connecting rod, and the connecting rod is rotatably arranged on a mechanical support; the keyboard machine is arranged on the keyboard mechanical support, the air port blocking block on the keyboard machine is blocked on the air port formed on the keyboard mechanical support, and the key button controls the lifting of the air port blocking block so as to control the opening and closing of the air port; the keyboard box is characterized in that a keyboard button plate is embedded in the vertical surface of the keyboard box, the top of each key button extends out of a key button hole formed in the keyboard button plate, the bottom of each key button is connected with a corresponding conductive elastic button, and each conductive elastic button is installed on a keyboard circuit board; when the conductive elastic button moves downwards when the key button is pressed, the conductive elastic button is contacted with the keyboard circuit board to generate a conducting signal.

4. An electronic accordion according to claim 3, wherein: the keyboard mechanical support is composed of an injection molding integrated installation part and an air cavity part, a hole for connecting the bottom of the key button with the conductive elastic button is arranged on the installation part, two rows of air ports communicated with the inside of the air cavity part are evenly distributed on the upper end surface of the air cavity part at intervals, and an air pipe socket communicated with the inside of the air cavity part is arranged at one end of the air cavity part.

5. An electronic accordion according to claim 1, wherein: the air box consists of an outer frame, a corrugated box body, an air box upper cover, an air box lower cover, a battery cover, an air pipe, a sensor pipeline, a first steering socket, a second steering socket and an air release mechanism, outer frames are respectively arranged at the upper end and the lower end of the corrugated box body, an upper cover of an air box is arranged on the outer frame at the upper end, the upper cover of the air box consists of a battery jar for installing a battery and an installation platform, the battery jar is buckled with a battery cover, an overload protector connected with the battery is also arranged in the battery jar, an air pipe, a sensor pipeline and a first steering socket are arranged on the mounting platform, one end of the air pipe is communicated with the interior of the corrugated case body, the other end of the air pipe is connected with an air pipe socket on the keyboard mechanical support, one end of the sensor pipeline is communicated with the interior of the corrugated box body, and the other end of the sensor pipeline is connected to a pressure sensor arranged on the main circuit board; the outer frame at the lower end is provided with an air box lower cover, one end of the air box lower cover is provided with a second steering socket connected with the first steering socket through a wire, and the other end of the air box lower cover is provided with an air leakage mechanism.

6. An electronic accordion according to claim 1, wherein: the bass is mainly composed of a bass shell, a bass key button assembly, a sound box and a bottom plate, the bass key button assembly is inserted on the front end face of the bass shell, the sound box is arranged in the bass shell and connected with a second adapter socket through a lead, and the bottom plate is installed at the bottom of the bass shell through screws.

7. An electronic accordion according to claim 6, wherein: and a Bluetooth module connected with the main circuit board is also arranged in the bass key button assembly.

8. An electronic accordion according to claim 6, wherein: the loudspeaker box comprises a box body, a woofer, a sound guide pipe and collodion, wherein a mounting hole is formed in the upper end face of the box body, the woofer is embedded in the mounting hole, a sound outlet hole is formed in the side wall of the box body, the sound guide pipe is inserted in the sound outlet hole in the box body, and the collodion covers the sound guide pipe.

9. An electronic accordion according to claim 5, wherein: the battery is a 7.4V and 10000mAh lithium battery.

Images