CN88211662U

CN88211662U - Electromagnetic induction type keyboard for electronic music instrument

Info

Publication number: CN88211662U
Application number: CN 88211662
Authority: CN
Inventors: 计力强; 汤为杰; 柴本善
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-04-18
Filing date: 1988-04-18
Publication date: 1988-12-28

Abstract

The utility model relates to an electromagnetic induction type keyboard for an electronic organ. The components and structure of the existing popularized contact electronic organ keyboard with conductive rubber are adopted; the bottom of each key is fixed with a magnetic core matching with an inductor coil which is arranged under the key. The output end of the coil is connected with a circuit of the electronic organ. Different strains of pressing keys can result in different speeds of magnetic core inserted into the coil and different output electric voltages on coil both ends, so the electronic organ can have strength variations when played.

Description

Electromagnetic induction type keyboard for electronic music instrument

The utility model is a kind of electronic organ keyboard structure.

Existing electronic organ keyboard is under key conductive rubber to be housed, and presses key, has connected circuit by conductive rubber, makes the musical instrument pronunciation.But in the process of playing,, all can not make musical sound produce the variation of dynamics regardless of pointing firmly size.Thereby playing mellotron, lack the music appeal the steely qin during as pianotron.

The utility model aims to provide a kind of electronic organ keyboard structure that energy generation dynamics changes when playing.

Of the present utility model being characterised in that placed an inductive coil below the key of mellotron, and magnetic core is fixed on each key bottom, and magnetic core and inductive coil match.The output terminal of inductive coil links to each other with circuit of electronic organ.It is also different that the difference of exerting oneself when playing because during button makes magnetic core insert the speed of coil, causes the variation of magnetic flux in the coil, thereby induce different induced voltages at the coil two ends.And this coil is connected with circuit, so firmly different variation the can make volume with button the time produced the effect that dynamics changes.

The utility model adopts the parts and the structure in addition of existing electronic organ key during fabrication, and fix a magnetic core as long as on the base plate of original structure, fix a coil and key bottom, and do not change remaining structure, just can produce a kind of mellotron that can match in excellence or beauty with piano sound.So its cost is low.

Illustrate in conjunction with an embodiment of the present utility model more below:

Fig. 1 is a synoptic diagram of the present utility model.Each parts is 1 base plate among the figure, 2 inductive coils, 3 magnetic cores, 4 magnetic core liners, 5 white keys, 6 black keys, 7 fixed blocks, 8 supports, 9 extension springs, 10 locating supports, 12 back seat supports, 13 fastening Luo Ding, 14 printed-wiring board (PWB)s, 15 linings, 16 conductive rubbers, 17 skeletons.Remove inductive coil 2, magnetic core 3 and magnetic core liner be according to outside the redesign of the utility model needs and increasing, and remaining other parts and structure are all the same with existing popular conductive rubber contact-type electronic qin piano key board.Represented among Fig. 1 is the key structure of a black key.Inductive coil 2 is fixed on base plate 1 front end, and magnetic core 3 is fixed on the bottom of key 6 by magnetic core liner 4.Magnetic core 3 matches with coil 2, and the circuit of mellotron is inserted at the two ends of coil.Skeleton 17, lining 15 links to each other with printed panel 14 conductive rubber 16 with base plate 1.Extension spring 9 links to each other key 5 with base plate 1.Also be fixed with locating support 10 on the base plate 1, support 8 and fixed block 7, the rear end of base plate is connected with back seat support 12.

Claims

1, a kind of induction electronic organ keyboard structure has key, base plate spring, support, conductive rubber, printed panel, it is characterized in that fixing a magnetic core in the bottom of each key, the output terminal of inductive coil links to each other with the circuit of mellotron, and inductive coil is fixed on the base plate of electronic organ keyboard.