CN206639581U - A kind of electronic music instrument keyboard - Google Patents

Abstract

It the utility model is related to a kind of electronic music instrument keyboard, including electronic organ governor circuit chip IC, 6 major keys, 4 half keys and it is at least one change a group button, 6 major keys, 4 half keys and at least one group button that changes are all connected with electronic organ governor circuit chip IC.The utility model to 6 major keys, 4 semitone key combinations by realizing 12 keypress functions, 6 keypress functions are realized by changing a group key combination at least one change group button 4, make that keyboard quantity is less, operation is simpler, small volume, in light weight while can realize existing keyboard type electronic musical instrument playing effect again.The utility model changes the method that existing keyboard kind musical instrument is arranged by multiple word groups, player do not need large span carried out according to music score change group so that the amateurish easy left-hand seat of instrumental music fan.Because the reduction of button can make musical instrument small volume be easy to carry while reduce manufacturing cost.

Description

A kind of electronic music instrument keyboard

Technical field

A kind of electronic music instrument keyboard is the utility model is related to, belongs to keyboard type electronic musical instrument technical field.

Background technology

Current market sales of keyboard type electronic musical instrument such as pianotron, electronic organ, electronic accordion, electronic synthesizer Deng application method is roughly the same.The musical alphabet position of keyboard is simply introduced by taking 84 keys of electronic organ as an example below, as shown in Figure 1. Be divided into seven groups, seven groups of musical alphabet it is as follows：

C1 #C1 D1 #D1 E1 F1 #F1 G1 #G1 A1 #A1 B1 --- big one group of word

C2 #C2 D2 #D2 E2 F2 #F2 G2 #G2 A2 #A2 B2 --- big word group

C3 #C3 D3 #D3 E3 F3 #F3 G3 #G3 A3 #A3 B3 --- small character group

C4 #C4 D4 #D4 E4 F4 #F4 G4 #G4 A4 #A4 B4 --- one group of middle pitch of small character

C5 #C5 D5 #D5 E5 F5 #F5 G5 #G5 A5 #A5 B5 --- two groups of small character

C6 #C6 D6 #D6 E6 F6 #F6 G6 #G6 A6 #A6 B6 --- three groups of small character

C7 #C7 D7 #D7 E7 F7 #F7 G7 #G7 A7 #A7 B7 --- four groups of small character

Other such as pianotron, electronic accordion, electronic synthesizer keyboard-type electronic musical instrument keyboard tone name position all Identical with electronic organ, difference is that button is how many.As can be seen here, because button is more, keyboard-type electronic musical instrument is to musical instrument User it is strict will to play fingering requirement by long-term exercise to the phoneme qualification of keyboard.It is amateur in general For instrumental music fan, think that the playing method difficulty for skillfully grasping keyboard-type electronic musical instrument is larger.

Chinese patent literature CN2446630Y discloses a kind of electronic organ keyboard, including 7 keynote keys, 5 half keys：Also Scale key is changed including more than one, 7 keynote keys, 5 half keys are with changing pressing for scale key when changing scale key and being pressed Rise or reduce, extend the pronunciation scope of standard key.But the patent without fundamentally change electronic organ output number of keys, He is that a piece of spring leaf is set below key body, and spring leaf is arranged with one piece of circuit board, arranges connection line on circuit boards With the process circuit for realizing electronic organ function, it can be seen that be the shortcomings that the patent constant in original electronic organ keyboard circuit In the case of add spring leaf and circuit board, due to spring leaf with play constantly slide and friction can loose contact influence play Effect, while set one piece of circuit board to add electronic organ manufacturing cost under spring leaf.

Chinese patent literature CN201732485U discloses a kind of 21 scale keyboard instruments for being suitable to play introduction study.Bag Include 7 keys and 13 driving switch realizes extended keyboard quantity.The patent is simply applied to introduction study, due to using 3 grades Bit switch needs to stir gear when playing, if playing faster note such as semiquaver, demisemiquaver, 64 Dieresis or faster note, it is not up to using method gearshift performance speed is stirred；The service life of other driving switch Also it is very limited；Furthermore the patent only has 7 musical alphabets not have semitone, no semitone can not normally play the music score of Chinese operas.

Chinese patent literature CN205692565A discloses a kind of electronic musical instrument disk, and 12 basal keystrokes of the Patent design are 7 major keys, 5 half keys, electronic musical instrument range scope is extended by changing a group button, 12 basal keystrokes and change group button and connect Electronic organ main control chip is connect, solves the shortcomings that above-mentioned two patent documents are present.Because people has 5 fingers to play 7 major keys 5 Individual half key is not still very convenient, and usual amateur thinks to grasp the performance of electronic organ, 7 major keys as early as possible also compared with disaster Degree, and 5 half keys (i.e. black key) operate in the major key first half and preferably grasped, playing 7 major key fingers will also constantly change hand The position of finger, it is unfavorable for the playing method that amateurish instrumental music fan faster skillfully grasps electric keyboard instrument.

The content of the invention

In view of the shortcomings of the prior art, the utility model provides a kind of electronic music instrument keyboard.

The utility model passes through the number of keys required for carrying out permutation and combination to less button, realizing.So that this reality With novel keyboard quantity is less, operation is simpler, small volume, easy to carry, while existing keyboard electron-like pleasure can be realized again Device playing effect.

The technical solution of the utility model is：

A kind of electronic music instrument keyboard, including electronic organ governor circuit chip IC, 6 major keys, 4 half keys and at least one Change a group button, 6 major keys, 4 half keys and at least one described change a group button and be all connected with the electronic organ master control Circuit chip IC.

6 major keys, 4 half keys are one group of phoneme for removing C4, #C4 of small character, as 10 standards of the present utility model Key, because one group of small character is 12 phonemes, the utility model is real using the method that wherein 2 major keys are pressed of 6 major keys simultaneously The output of existing C4 musical alphabets, the method pressed simultaneously using 6 major keys wherein 1 and 1 therein of 4 half keys realize #C4 sounds The output of name, so as to realize the output of 12 phonemes of small character one group using 10 standard keys.When do not press change group button when, press When pressing standard key, the musical alphabet of outputting standard key.When pressing standard key and changing group button, changed corresponding to electronic organ outputting standard key The musical alphabet of group button.In addition to the musical alphabet output of standard key need not press and change group button, the output of other phonemes is required for pressing pair That answers changes a group button, while presses standard key, so as to export required musical alphabet.

It is preferable according to the utility model, the model AT89C51 of the electronic organ governor circuit chip IC.

Preferable according to the utility model, the electronic music instrument keyboard changes a group button including 4, and 6 major keys include D4, E4, F4, G4, A4, B4,4 half keys include #D4, #F4, #G4, #A4, described 4 change group button include SW1, SW2、SW3、SW4；

Major key D4, half key #D4, major key E4, major key F4 one end connect diode D1, diode D2, diode respectively D3, diode D4 one end, major key D4, half key #D4, major key E4, the major key F4 other end connect the electronic organ master respectively Control circuit chip IC interface P1.4, interface P1.5, interface P1.6, interface P1.7, diode D1, diode D2, diode D3, The diode D4 other end is all connected with the interface P1.0 of the electronic organ governor circuit chip IC；

Half key #F4, major key G4, half key #G4, major key A4 one end connect diode D5, diode D6, two poles respectively Pipe D7, diode D8 one end, half key #F4, major key G4, half key #G4, the major key A4 other end connect the electronics respectively Interface P1.4, interface P1.5, interface P1.6, the interface P1.7 of qin governor circuit chip IC, diode D5, diode D6, two poles Pipe D7, the diode D8 other end are all connected with the interface P1.1 of the electronic organ governor circuit chip IC；

Half key #A4, major key B4, a group button SW1 is changed, a group button SW2 one end is changed and connects diode D9, diode respectively D10, diode D11, diode D12 one end, half key #A4, major key B4, change a group button SW1, change the another of group button SW2 End connects interface P1.4, interface P1.5, interface P1.6, the interface P1.7 of the electronic organ governor circuit chip IC, two poles respectively Pipe D9, diode D10, diode D11, the diode D12 other end are all connected with connecing for the electronic organ governor circuit chip IC Mouth P1.2；

Change a group button SW3, change a group button SW4 one end and connect diode D13, diode D14 one end respectively, change group by Key SW3, change group button SW4 other end and connect the interface P1.4 of the electronic organ governor circuit chip IC, interface P1.5 respectively, Diode D13, the diode D14 other end are all connected with the interface P1.3 of the electronic organ governor circuit chip IC.

Change group button SW1 and control big word group, change a group button SW2 control small character groups, change group button SW3 two groups of a small characters of control, Group button SW4 three groups of a small characters of control are changed, the control for big one group of word, four groups of small character equally uses presses different 2 simultaneously Change group button to realize, method is：SW1, SW2 is pressed simultaneously to control big one group of word while press SW3, SW4 four groups of small character of control, Realize that 6 are changed a group keypress function so as to change a group button using 4.

Preferable according to the utility model, the electronic music instrument keyboard also includes loudspeaker SPK, the electronic organ master control electricity The interface P3.7 connections loudspeaker SPK of road chip IC.It need to add power amplifier if desired for driving supersound projector.

Preferable according to the utility model, the power of the loudspeaker SPK is 0.5W.

Audio output by the electronic organ governor circuit chip IC interface P3.7 connections 0.5W small loudspeaker SPK, such as Need to drive supersound projector to add power amplifier.

The course of work of the present utility model：Played with left index finger, middle finger, the third finger and right hand forefinger, middle finger, the third finger 6 major keys, left hand thumb or hand thumb, which are played, changes a group button and is played, and realizes that a finger is fixed and plays a major key, Two fingers press the roll call of major key D4, E4 output C4 phonemes simultaneously, and it is defeated that two fingers press major key D4, half key #D4 simultaneously Go out the roll call of #C4 phonemes.4 half keys major key on one side, it is necessary to when finger slightly biased to one side pressing be easy to play.

The fingering main analog tongue plays fingering, can play the flute, the civilian musical instrument such as vertical bamboo flute, suona horn, cucurbit flute and small Number, the people of the western musical instrument such as clarinet, flute soon can skilled playing method of the present utility model.

A kind of electronic music instrument keyboard of 4 standard keys, including 2 major keys C4, D4,2 half keys #C4, #D4,4 are changed group Button SW1, SW2, SW3, SW4, major key C4, D4 and half key #C4, #D4 are one group of button of small character, and 4 are changed a group button and are SW1, SW2, SW3, SW4, by the way that to 2 major keys C4, D4,2 half keys #C4, #D4 carry out permutation and combination one group of small character of output 12 standard keys, major key C4, D4, half key #C4, #D4 key-press status and output musical alphabet are as shown in table 1；

Table 1

Change group button SW1 and control big word group, change a group button SW2 control small character groups, change group button SW3 two groups of a small characters of control, Group button SW4 three groups of a small characters of control are changed, the control for big one group of word, four groups of small character is using pressing different 2 changes group simultaneously Button realizes that method is：SW1, SW2 is pressed simultaneously to control big one group of word while press SW3, SW4 four groups of small character of control, so as to A group button, which is changed, using 4 realizes that 6 are changed a group keypress function.

The electronic music instrument keyboard, which by 2 major keys, 2 half keys, 4 changes a group button and amounts to 8 buttons, realizes 84 bonding electrons Qin plays function.The thumb of two hands during use, forefinger, middle finger, it is nameless play 4 standard keys respectively and 4 change group by Key.

The model AT89C51 single-chip microcomputers of governor circuit chip IC.

Major key C4, half key #C4, major key D4, half key #D4 one end connect the interface of governor circuit chip IC respectively P1.0, interface P1.1, interface P1.2, interface P1.3, major key C4, half key #C4, major key D4, half key #D4 another termination Ground.Group button SW1, SW2, SW3, SW4 one end is changed to connect the interface P1.4 of governor circuit chip IC, interface P1.5 respectively, connect Mouth P1.6, interface P1.7, change group button SW1, SW2, SW3, SW4 other end ground connection.The interface P3.7 of governor circuit chip IC Connect 0.5W small loudspeaker SPK, need to add power amplifier if desired for driving supersound projector.As shown in Figure 4.

The beneficial effects of the utility model are：

1st, keyboard quantity is less, operates simpler, small volume, again by combining, making to keyboard arrangement for the utility model Amount is light while can realize existing keyboard type electronic musical instrument playing effect again.

2nd, the utility model changes the method that existing keyboard kind musical instrument is arranged by multiple word groups, player need not greatly across Degree carried out according to music score change group so that the amateurish easy left-hand seat of instrumental music fan.

3rd, because the reduction of button can make musical instrument small volume be easy to carry while reduce manufacturing cost.

Brief description of the drawings

Fig. 1 is the structural representation of the musical alphabet position of 84 keys of existing electronic organ；

Fig. 2 is theory diagram of the present utility model；

Fig. 3 is the circuit connection diagram of electronic music instrument keyboard described in embodiment 1；

Fig. 4 is the circuit connection diagram of the electronic music instrument keyboard of 4 standard keys.

Embodiment

With reference to Figure of description and embodiment to the further restriction of the utility model, but not limited to this.

Embodiment

A kind of electronic music instrument keyboard, including electronic organ governor circuit chip IC, 6 major keys, 4 half keys and 4 change group Button, 6 major keys, 4 half keys and 4 change a group button and are all connected with electronic organ governor circuit chip IC, as shown in Figure 2.

6 major keys, 4 half keys are one group of phoneme for removing C4, #C4 of small character, as 10 standards of the present utility model Key, because one group of small character is 12 phonemes, the utility model is real using the method that wherein 2 major keys are pressed of 6 major keys simultaneously The output of existing C4 musical alphabets, the method pressed simultaneously using 6 major keys wherein 1 and 1 therein of 4 half keys realize #C4 sounds The output of name, so as to realize the output of 12 phonemes of small character one group using 10 standard keys.When do not press change group button when, press When pressing standard key, the musical alphabet of outputting standard key.When pressing standard key and changing group button, changed corresponding to electronic organ outputting standard key The musical alphabet of group button.In addition to the musical alphabet output of standard key need not press and change group button, the output of other phonemes is required for pressing pair That answers changes a group button, while presses standard key, so as to export required musical alphabet.

The model AT89C51 of electronic organ governor circuit chip IC.6 major keys include D4, E4, F4, G4, A4, B4,4 Half key includes #D4, #F4, #G4, #A4, and 4 are changed group button and include SW1, SW2, SW3, SW4；

Major key D4, half key #D4, major key E4, major key F4 one end connect diode D1, diode D2, diode respectively D3, diode D4 one end, major key D4, half key #D4, major key E4, the major key F4 other end connect electronic organ master control electricity respectively Interface P1.4, interface P1.5, interface P1.6, the interface P1.7 of road chip IC, diode D1, diode D2, diode D3, two poles The pipe D4 other end is all connected with the interface P1.0 of electronic organ governor circuit chip IC；

Half key #F4, major key G4, half key #G4, major key A4 one end connect diode D5, diode D6, two poles respectively Pipe D7, diode D8 one end, half key #F4, major key G4, half key #G4, the major key A4 other end connect electronic organ master respectively Control circuit chip IC interface P1.4, interface P1.5, interface P1.6, interface P1.7, diode D5, diode D6, diode D7, The diode D8 other end is all connected with the interface P1.1 of electronic organ governor circuit chip IC；

Half key #A4, major key B4, a group button SW1 is changed, a group button SW2 one end is changed and connects diode D9, diode respectively D10, diode D11, diode D12 one end, half key #A4, major key B4, change a group button SW1, change the another of group button SW2 End respectively connect electronic organ governor circuit chip IC interface P1.4, interface P1.5, interface P1.6, interface P1.7, diode D9, Diode D10, diode D11, the diode D12 other end are all connected with the interface P1.2 of electronic organ governor circuit chip IC；

Change a group button SW3, change a group button SW4 one end and connect diode D13, diode D14 one end respectively, change group by Key SW3, change group button SW4 other end and connect the interface P1.4 of electronic organ governor circuit chip IC, interface P1.5, two poles respectively Pipe D13, the diode D14 other end are all connected with the interface P1.3 of electronic organ governor circuit chip IC.

Change group button SW1 and control big word group, change a group button SW2 control small character groups, change group button SW3 two groups of a small characters of control, Group button SW4 three groups of a small characters of control are changed, the control for big one group of word, four groups of small character equally uses presses different 2 simultaneously Change group button to realize, method is：SW1, SW2 is pressed simultaneously to control big one group of word while press SW3, SW4 four groups of small character of control, Realize that 6 are changed a group keypress function so as to change a group button using 4.

Electronic music instrument keyboard also includes loudspeaker SPK, the interface P3.7 connection loudspeakers of electronic organ governor circuit chip IC SPK.It need to add power amplifier if desired for driving supersound projector.Loudspeaker SPK power is 0.5W.As shown in Figure 3.

Audio output by the electronic organ governor circuit chip IC interface P3.7 connections 0.5W small loudspeaker SPK, such as Need to drive supersound projector to add power amplifier.

The course of work of the present utility model：Played with left index finger, middle finger, the third finger and right hand forefinger, middle finger, the third finger 6 major keys, left hand thumb or hand thumb, which are played, changes a group button and is played, and realizes that a finger is fixed and plays a major key, Two fingers press the roll call of major key D4, E4 output C4 phonemes simultaneously, and it is defeated that two fingers press major key D4, half key #D4 simultaneously Go out the roll call of #C4 phonemes.4 half keys major key on one side, it is necessary to when finger slightly biased to one side pressing be easy to play.

Claims (3)

1. a kind of electronic music instrument keyboard, it is characterised in that including electronic organ governor circuit chip IC, 6 major keys, 4 half keys And 4 changed a group button, 6 major keys, 4 half keys and 4 change a group button and are all connected with the electronic organ governor circuit Chip IC；

The model AT89C51 of the electronic organ governor circuit chip IC；

The electronic music instrument keyboard changes a group button including 4, and 6 major keys include D4, E4, F4, G4, A4, B4, described 4 Half key includes #D4, #F4, #G4, #A4, and described 4 are changed group button and include SW1, SW2, SW3, SW4；

Major key D4, half key #D4, major key E4, major key F4 one end connect diode D1, diode D2, diode D3, two respectively Pole pipe D4 one end, major key D4, half key #D4, major key E4, the major key F4 other end connect the electronic organ governor circuit respectively Interface P1.4, interface P1.5, interface P1.6, the interface P1.7 of chip IC, diode D1, diode D2, diode D3, diode The D4 other end is all connected with the interface P1.0 of the electronic organ governor circuit chip IC；

Half key #F4, major key G4, half key #G4, major key A4 one end connect diode D5, diode D6, diode respectively D7, diode D8 one end, half key #F4, major key G4, half key #G4, the major key A4 other end connect the electronic organ respectively Interface P1.4, interface P1.5, interface P1.6, the interface P1.7 of governor circuit chip IC, diode D5, diode D6, diode D7, the diode D8 other end are all connected with the interface P1.1 of the electronic organ governor circuit chip IC；

Half key #A4, major key B4, change a group button SW1, change a group button SW2 one end connect respectively diode D9, diode D10, Diode D11, diode D12 one end, half key #A4, major key B4, change a group button SW1, change group button SW2 other end point Do not connect interface P1.4, interface P1.5, interface P1.6, the interface P1.7 of the electronic organ governor circuit chip IC, diode D9, Diode D10, diode D11, the diode D12 other end are all connected with the interface of the electronic organ governor circuit chip IC P1.2；

A group button SW3 is changed, a group button SW4 one end is changed and connects diode D13, diode D14 one end respectively, changes a group button SW3, change group button SW4 other end and connect the interface P1.4 of the electronic organ governor circuit chip IC, interface P1.5 respectively, two Pole pipe D13, the diode D14 other end are all connected with the interface P1.3 of the electronic organ governor circuit chip IC.

2. a kind of electronic music instrument keyboard according to claim 1, it is characterised in that the electronic music instrument keyboard also includes raising Sound device SPK, the interface P3.7 connections loudspeaker SPK of the electronic organ governor circuit chip IC.

3. a kind of electronic music instrument keyboard according to claim 2, it is characterised in that the power of the loudspeaker SPK is 0.5W。