CN85200457U - Electronic organ with a curved box baffle - Google Patents

Abstract

Disclosed is an electronic organ with a curved box relating to an electronic musical instrument mainly used by households. The utility model is characterized in that a keyboard can be taken out from a box with consideration to both space utilization and the electroacoustic characteristic of the musical instrument. Force is exerted to the triangle cross section of a box body, space generated by absence of the keyboard in the box is used as the channel of a labyrinth sound box. The upper part of the box body can be attached or provided with various culture and daily articles including the display screen of an electronic clock. A radio recorder can be combined with the utility model which can be laid out in various layout methods.

Description

Electronic organ with a curved box baffle

The utility model is that a kind of family expenses are main electronic musical instrument.

In the market and the keyboard type electronic organ kind of introducing on the various data a lot, have various function.But its difference mainly embodies from the electronic circuit aspect, from the lyre structure aspect, mainly contains the console mode of imitative organ structure, concertina, and flat is portable, desk-top, and the toy mellotron etc.Console mode and concertina are mainly used in arenas performance, teaching etc., and function is more complete, and acoustics is better, but price is higher.Flat easy to carry, specification the greater also can be used for performance.Flat or the toy formula of general multipurpose household small dimension.This electron-like qin price is lower, and one of shortcoming is that acoustics is relatively poor.Main cause is a flat capsule, both blow-by, and also few of remaining space is the low frequency characteristic that can not guarantee loudspeaker, can not resemble to produce good sympathetic response the non-electronic musical instrument.Work hard from the electronic circuit aspect and to improve tonequality, effect is limited.If strengthen qin body size, make common mesa structure, certainly will occupy bigger space.The living conditions of at present a lot of families are also relatively poor, and especially desk or desk need often to use, and area is again little, is very necessary so make full use of or account for less table top.

To be solved in the utility model, good exactly acoustics and make full use of contradiction between the space.Method is that mellotron is made the mesa structure that keyboard separates, and keyboard (comprising most of circuit component) places in the case, takes out in the time of playing and is placed on suitable place, and links to each other with cable between the qin body, and loudspeaker, power supply etc. is fixed in the casing.Here " keyboard " also can be the performance parts of non-keyboard electronic musical instrument.Casing can be divided into several cavity parts, as speaker cabinet A, sound pipe B, keyboard case C among Fig. 1, deposit thing chamber D etc.A, B, C three parts are communicated with into labyrinth type (also claiming labyrinth) audio amplifier.Resonance frequency f as loudspeaker ₀≈ 200HZ, by labyrinth type audio amplifier design concept, the labyrinth length that A, B, C three parts are formed is about 1.3 meters, and then the qin body length is about 0.6 meter, can put into four groups of octaves (49) keyboard.This size also is applicable to the suitable C of f ≈ 66HZ() woofer (joining high pitch loudspeaker in addition).

The casing section is S-type to be owing to following reason.The one, for strengthening gear housing rigidity, make it be difficult for producing resonance, and can bear the bigger weight in top, otherwise valve half vacant state can occur after opening so that can put article, lamina can produce moderate finite deformation.Making the such rigidity of Fig. 2 I increases to some extent, but II, III effect can be better.Upper plate (8), dividing plate (7) form leg-of-mutton closed cross-section with back plate (6), have become the cased beam rigidity just to increase greatly and have also formed simultaneously sound channel (sound pipe).The 2nd, the needs on the profile; The bottom just in time is suitable for putting keyboard, and the qin body is also unlikely to seem too thick.Be in the light and also can reduce.The upper plate that tilts can be put desk calendar, or music of song textbook (using when children learn), photo etc.

As can be seen, the mellotron of this structure has following advantage:

1. the flat mellotron with same length and width compares.Because the acoustic construction of qin body is good, tonequality has improvement greatly.

It is 2. actual that to take table top few.Because keyboard is recoverable, the qin body has replaced desk calendar plate etc. and can the placement part article, and the utilization factor of table top is improved.And do not influence the use of qin.

3. easy to use.Keyboard can be placed on the place of being convenient to play, and regains with the back, and the qin body can be placed on out of the way place.

Figure 1 shows that the representative configuration embodiment of this mellotron, its length preferably is not more than 0.7 meter, and width is not more than 0.2 meter.Can adopt the loudspeaker of φ 100～125 or adopt the combination loudspeaker group.The D chamber can be used to deposit articles for daily use such as ink bottle, glue, paste bottle, cosmetics and small-sized handicraft, and stepped appearance plate (9) is arranged on the inclined-plane.The D chamber also can change the radio cassette player part into.Top plan still can be put part objects such as small-sized potted landscape, vase etc.All put the article place all soft foam pad weakening.Expose the inclined-plane and generally arrange, but desk calendar plate and upper plate (8) they should be separable by putting desk calendar, so that change sing spectrum, books, but and Band clamp.Remainder application dihedral cushion block (17) is leveled up and is beneficial to as lamp stand, and puts pen container, mirror etc., and front end face can be used as the display screen of electronic clock.Electronic clock can be by regularly playing out prestore short bent better.Speaker cabinet A is positioned at the right side, left side can.Valve (2) is connected with box plate (5) by hinge (3), sucks or mechanical hook-ups such as hook, tooth plate, spiral, the conical surface are locked by magnet, and seals with flexible material.Also can utilize keyboard to extract the back out and not exclusively break away from casing, and cavity C is blocked, form sound channel.

Figure 2 shows that operable other cross sectional shape.

Fig. 3 is other various layouts, array mode.Wherein:

A-is flat; The b-ramp type; Loudspeaker is loaded on the B chamber.

It is side-mounted that c-does not have the thing of depositing chamber; D-does not have the opposed stereo formula in the thing of depositing chamber;

The side-mounted mellotron radio cassette player of e-; F-opposed type electronic stereophonic organ radio cassette player.

Other code name explanation in the accompanying drawing:

Cavity: A-speaker cabinet; The B-sound pipe; The C-keyboard case; D-deposits the thing chamber; E-sound equipment accessory case; The F-speaker cabinet; G-deposits thing chamber or radio cassette player part.

The 1-cable; The 2-valve; The 3-hinge; 4-keyboard (performance parts)

The 5-base plate; Plate behind the 6-; The 7-dividing plate; The 8-upper plate; 9-stepped appearance plate;

The 10-socket; 11-magnet; 12,13-side plate; The 14-top board;

The 15-face shield; The 16-loudspeaker; The 17-cushion block.

Claims (10)

1, a kind of by playing parts, casing, circuit board, loudspeaker, the electronic musical instrument that power supply etc. are formed, it is characterized in that having in the casing cavity [C] of depositing the extensible performance parts body that links to each other with casing by cable, and the cavity [B] in the dividing plate on top [7], upper plate [8] and back plate [6] formation cross section triangular in shape.

2, electronic musical instrument as claimed in claim 1 is characterized in that the cavity (C) of cavity (B) and band valve (2) is communicated with formation labyrinth passage.

3, as claim 1,2 described electronic musical instruments, one cavity (A) that is formed by top board (14), face shield (15), side plate (12), (13) and back plate (6) is arranged at the top that it is characterized in that upper plate (8), loudspeaker (16) is equipped with in the inside, and forms the labyrinth passage with cavity (B), (C).

4,, it is characterized in that on the upper plate (8) that casing tilts cushion block (17) being arranged as claim 1,2 or 3 described electronic musical instruments.

5,, it is characterized in that cavity (B) front end has the magnet (11) that valve can be sucked or hook, tooth plate, spiral, conical surface locking device as claim 1,2 or 3 described electronic musical instruments.

6,, it is characterized in that having the cavity (D) of one and cavity (A) band stepped appearance base plate (9) arranged side by side as claim 1,2 or 3 described electronic musical instruments.

7, as claim 1,2 or 3 described electronic musical instruments, it is characterized in that having one and cavity (A) arranged side by side radio, the cavity (E) of sound equipment annexes such as sound-track engraving apparatus be housed.

8,, it is characterized in that respectively there is cavity (A), (F) of putting loudspeaker both sides, casing top as claim 1,2 described electronic musical instruments.

9, electronic musical instrument as claimed in claim 8 is characterized in that in the middle of the casing top be cavity (G).

10, electronic musical instrument as claimed in claim 1 is characterized in that cavity (C) is to seal by the performance parts that shift out.