CN208752943U - A kind of conducting structure for stringed musical instrument vibrating sensing and amplification system - Google Patents

Abstract

A kind of conducting structure for stringed musical instrument vibrating sensing and amplification system, the conducting structure are removably mounted below horse bone, and several metal tape cap bars on the top of the central piezoelectric element are mounted on including several central piezoelectric elements and fitting；The metal tape cap bar from top to bottom includes integrally formed bar portion and cap portion, and the top of the bar portion passes through the location hole matched and reaches in horse bone slot, and directly contacts with the bottom of horse bone；Cap portion bottom end gapless fitting connects the top of the central piezoelectric element, and cap portion top closely presses with bridge stiffening plate and contacts.The utility model provide it is a kind of be easily installed and the conducting structure for stringed musical instrument vibrating sensing and amplification system of convenient disassembly, by applying quality in the non-inductive side of piezoelectric element, the electroacoustic amplification performance of musical instrument greatly improved；And can more firmly be coupled with stringed musical instrument, pickup efficiency is effectively improved, output tone color is more preferable, has more realistically reproduced the primary sound of guitar.

Description

A kind of conducting structure for stringed musical instrument vibrating sensing and amplification system

Technical field

It is especially a kind of for stringed musical instrument vibrating sensing and amplification system the utility model relates to stringed musical instrument technical field Conducting structure.

Background technique

The body of guitar is usually made by slim and graceful, firm timber or other light sheets, so that effectively conduction vibration arrives In the air of surrounding, make a sound, instrument playing can be just heard.However such light sheet not only can be with the vibration of string It moves and vibrates, can also be vibrated with the amplified musical instrument sound of electroacoustic, thus light sheet position, string, then sound in musical instrument It rings and forms a circulation between amplification system, or " feedback noise " (performance personnel normally referred to as " utter long and high-pitched sounds ").

Horse bone is the terminal of string at guitar body, and the position of horse bone determines the length of guitar string, or " effective string It is long ".Due to being located at the end of string, it can appropriate or effective pickups string vibrate because string is exactly to shake from here The resonator of dynamic guitar.In order to avoid generation " feedback noise ", sound pick up equipment is typically mounted at Ma Guxia, be normally placed at horse bone and Inside horse bone slot between bridge.

Existing pickup technology is there are three types of implementation: the first is strong, that is, six minimum piezoelectric ceramic pieces, often Piece is responsible for a string, picks up vibration respectively, this six pickups with potsherd are fixed on inside metal strip shell with glue , glue further compromises coupling, and because piezoelectric ceramics volume is too small, pickup efficiency is very low；Second is soft stick, Exactly a kind of to incude pickup item of the plastics as raw material, the number of plies of package is more, and pickup is sensitiveer, however is limited to volume, and Plastic material is soft, propagates sound not as good as the factors such as other solid effective percentage, the pickup efficiency or use far from enough of pickup item 's；The first and second are all to rely on the pulling force of string downwardly against horse bone, and horse bone has a downward power to sound pick up equipment To realize coupling.The third is equidistantly fixed using six roots of sensation large size piezoelectric ceramics stick aluminium alloy strip pedestal and with screw in qin Fixed mode below horse, but the third implementation can only be in guitar manufacturing process, by bridge and bridge reinforcement Plate and panel carry out special aperture processing, can install, if it is finished product guitar, cannot be mounted directly.This reality Solves this problem with novel.

The defect of the prior art is as follows:

1, in the prior art, strong and pickup item can only all rely on the downward pressure of horse bone to be coupled or be clamped, and These pressure are only the applied force after string tightens.Lead to couple bad, generation feedback noise, and because they compare Pine, it is also insensitive to the structure of surrounding and resonance；The device quality hour of non-sensing side simultaneously, pickup low efficiency.This is because Device light weight, non-inductive side are just vibrated by induction side with external environment together, and entire sound pick up equipment is with guitar Vibration and all vibrate, sound pick up equipment itself does not have enough piezoelectric effect spaces.

2, it is known by softer material when, or when having gap in the device, the propagation efficiency of sound wave can be reduced.And incite somebody to action When soft stick is installed on acoustic guitar, since soft stick itself is very soft, conduction is got up efficient not as good as hard solid；The prior art In strong the inside be then that piezoelectric element is glued with glue, glue is very low as a Link Efficiency in conducting solid, pass The property led is worse；Under both of these case, the propagation efficiency of sound wave is lower.

3, on the first two sound pick up equipment of the prior art, piezoelectric element is necessarily mounted in the horse bone slot below horse bone, horse The spatial volume of horse bone slot below bone limits the volume for the piezoelectric material that can be used, and electric signal exports and piezoelectric material Volume it is directly proportional, so the output of electric signal is very limited；Commonly used in the prior art strong and soft stick must rely on It could be worked normally in the flatness of horse bone slot.If horse bone trench bottom out-of-flatness, the vibration pickup of six roots of sensation string will be uneven, When and the string that has is less than the volumes of other strings by the amplified volume of electroacoustic.

Utility model content

In order to overcome the disadvantages mentioned above of the prior art, it is easily installed the purpose of the utility model is to provide one kind and disassembly side Just the conducting structure for stringed musical instrument vibrating sensing and amplification system, by applying matter in the non-inductive side of piezoelectric element Amount, greatly improved the electroacoustic amplification performance of musical instrument；And can more firmly be coupled with stringed musical instrument, pickup efficiency is effectively improved, it is defeated Tone color is more preferable out, has more really reproduced the primary sound of guitar；It can load volume be bigger, the stronger piezoelectric element of horsepower.

The technical scheme adopted by the utility model to solve the technical problem is as follows:

The panel front of a kind of conducting structure for stringed musical instrument vibrating sensing and amplification system, the stringed musical instrument is equipped with qin Horse, the position that back side of panel corresponds to bridge are equipped with bridge stiffening plate, the solid string hole and peace of fixed string are provided on the bridge The horse bone slot of horse bone is filled, string is fixed on bridge stiffening plate from outside through solid string hole by solid string nail.

The conducting structure is removably mounted below horse bone, and the conducting structure includes:

Several central piezoelectric elements, for the vibration received to be converted to electric signal；

Several metal tape cap bars are transmitted for being mounted on the top of the central piezoelectric element, and by the vibration sensed To the central piezoelectric element being fixedly mounted；

The metal tape cap bar from top to bottom includes integrally formed bar portion and cap portion, and the top of the bar portion, which passes through, to match The location hole of conjunction reaches in horse bone slot, directly contacts beyond horse bone slot bottom facial planes and with the bottom of horse bone；Cap portion bottom End gapless fitting connects the top of the central piezoelectric element, is locked together, and securely, it is more accurate accurate to conduct for coupling；Institute It states cap portion top and is closely pressed with bridge stiffening plate and contacted.It is 3 millimeters or other suitable dimensions that the bar portion, which may pass through diameter, Location hole.

As further improvement of the utility model: the conducting structure further includes the pickup base of installation center piezoelectric element Seat, for being fixedly mounted in stringed musical instrument in the non-inductive side of central piezoelectric element application quality, and by the conducting structure Portion corresponds to bridge lower position；The bottom end of the central piezoelectric element is successively equidistantly fixed in the upper surface of the pickup pedestal, interior Portion is equipped with pickup circuit device, and sequentially passes through bridge stiffening plate by the installation screw bolt and nut at both ends and be fixedly connected with panel To horse bone slot both ends；

Preferably, in order to which in the non-inductive side of central piezoelectric element, that is, that side application for being not directly contacted with stringed musical instrument is larger Quality, the pickup pedestal is using the manufacture of hardness is big, density is big metal or alloy material.

The conducting structure is mounted on inside musical instrument, without the small space being mounted between horse bone slot and horse bone It is interior, thus the utility model effectively overcomes the space limitation of installation piezoelectric element, is only limitted in horse bone slot space than most of Existing apparatus electric signal output will be more.

It is further preferred that the pickup pedestal is surfacing and the firm aluminium of quality, brass or other high density gold Genotype material；Pickup pedestal is unlikely to deform, and even curface effectively prevents occurring contacting non-uniform problem, that is, avoids Each Chord vibration picks up non-uniform problem；Further, the material of pickup pedestal is also conducive to conduction vibration, has certain tribute to tone color It offers, better audio is provided.

As further improvement of the utility model: the conducting structure further includes several Secondary piezoelectric elements, for feeling Answer the vibration of the face plate center；Several Secondary piezoelectric elements are distributed the pickup pedestal of centrally disposed piezoelectric element two sides Upper surface, and top gapless fitting is equipped with the metal cap for transmitting panel vibration, the top of the metal cap and bridge Stiffening plate closely presses contact.

Preferably, the diameter of the location hole is less than or equal to the width of the horse bone slot.It is further preferred that described fixed The diameter in position hole is no more than 3 millimeters；The installation screw bolt and nut is the 3 millimeters of screw bolt and nut matched.The utility model In, the installation bolt is neither to influence the structure and appearance of guitar from the inside toward locking, is easy to remove.

Preferably, the nut of the installation bolt is T-shaped or inverted " L " font, to adapt to the peace in horse bone slot Dress, in this way once being installed, entire assembly is with regard to invisible.

Preferably, the pickup pedestal is additionally provided with the electric shield layer for shielding radio frequency.

Preferably, the contact area size of cap portion top and bridge stiffening plate has adjustability, can be by adjusting connecing Contacting surface product size come balance bar portion top pickup horse bone and string vibration rational proportion.The stringed musical instrument is guitar, institute The quantity for stating metal tape cap bar and central piezoelectric element is 6.The quantity of the Secondary piezoelectric element is 2~8.

The utility model is also equipped with the hole drilling die being used cooperatively, and the hole drilling die bottom has one just to stick into horse bone The locating piece of slot has been sequentially distributed screw hole and six location holes on hole drilling die.Hole drilling die is used to allowing the positioning of drilling It is more accurate, it is easily installed total.

Compared with prior art, the utility model has the beneficial effects that

The sufficiently large pickup pedestal of quality is rigidly coupled on musical instrument by the utility model by screw bolt and nut, both effectively The space limitation of installation piezoelectric element is overcome, it can load volume be bigger, the stronger piezoelectric element of horsepower；Again in piezoelectric element Non-inductive side apply biggish quality, strengthen piezoelectric effect, bigger electric signal can be generated；And pickup susceptor mass is big, It is firm to be unlikely to deform, the possibility of feedback noise appearance is reduced, pickup efficiency is improved；Even curface then effectively prevents out Now contact problem of non-uniform relevant to strip piezoelectric system；The utility model can fill later from beneath lock screw, thus not only It can be installed in guitar semi-finished product, moreover it is possible to be installed on finished product qin；The metal tape cap bar of the utility model picks up the qin of Ma Guchu Chord vibration, passes to central piezoelectric element, and the cap portion top of metal tape cap bar contacts with bridge stiffening plate, can also substantially pick up The vibration of panel helps to promote tone color；Secondary piezoelectric element is coupled with panel, further incudes the vibration at instrument panel position It is dynamic, so that the sound picked up is truer, more true reproduction is provided for the primary sound performance of guitar, audio is more preferable；And It is installed with can be convenient by hole drilling die, it is easily disassembled, and qin body is not damaged.

Detailed description of the invention

Fig. 1 is the assembly structure diagram of the utility model.

Fig. 2 is the decomposition texture schematic diagram of the utility model.

Fig. 3 is the installation top view of the utility model bridge.

Fig. 4 is the package assembly side view of the utility model.

Fig. 5 is the structural schematic diagram of the utility model installation on the back of the panel.

Fig. 6 is the connection diagrammatic cross-section of the utility model metal tape cap bar and central piezoelectric element.

Fig. 7 is the structural schematic diagram of the utility model case study on implementation two.

Specific embodiment

Now in conjunction with Detailed description of the invention, the present invention will be further described with case study on implementation:

Case study on implementation one: please referring to Fig. 1 to Fig. 6, a kind of conducting structure for stringed musical instrument vibrating sensing and amplification system, The stringed musical instrument is guitar, and 7 front of panel of the stringed musical instrument is equipped with bridge 1, and the position that back side of panel corresponds to bridge is equipped with qin Horse stiffening plate 10 is provided with the solid string hole 4 of fixed string and the horse bone slot 3 of installation horse bone 2 on the bridge, and string is worn from outside String hole admittedly is crossed, is fixed on bridge stiffening plate by solid string nail；The string of string wire guitar generates about 70 public affairs when standard pitch is tuned a stringed instrument The pulling force of jin, the pulling force of string is usually 40 kilograms on nylon guitar.In order to balance 40 kilograms or 70 kilograms of string of pulling force It is unlikely to lead to panel ruptures, it is necessary to it is correspondingly arranged inside and outside bridge stiffening plate and bridge, it is right in the reverse side application one of bridge The power answered, plays balanced action.In addition to this, back side of panel is additionally provided with roof beam structure, also referred to as sound beam, and it is steady to play protection panels structure It is fixed, it is unlikely to the effect of rupture under the pulling force of string.

The conducting structure is removably mounted on 2 lower section of horse bone, comprising:

Several central piezoelectric elements 5, for the vibration received to be converted to electric signal；

Several metal tape cap bars 6 are mounted on the top of the central piezoelectric element, and the vibration that will be sensed for fitting Pass to the central piezoelectric element being fixedly mounted；Wherein, the quantity of the metal tape cap bar and central piezoelectric element is 6 It is a；

The metal tape cap bar from top to bottom includes integrally formed bar portion 61 and cap portion 62, and the top of the bar portion passes through The location hole 60 matched is reached in horse bone slot 3, and is directly contacted with the bottom of horse bone 2；Cap portion bottom end gapless set The top for connecting the central piezoelectric element is closed, cap portion top closely presses with bridge stiffening plate and contacts, metal tape cap bar Cap portion can sense that bridge reinforcement panel vibration, bridge stiffening plate are the important components of panel indirectly, material can control Whole tone color quality and taste qin.Therefore, the utility model provides more true reproduction for the primary sound performance of guitar；It is described Metal tape cap bar and the coupling of central piezoelectric element and panel are good.

It is 3 millimeters or the location hole of other suitable dimensions that the bar portion, which may pass through diameter,.

Panel is that stringed musical instrument vibrates the main portions made a sound, when sound pick up equipment works, picks up panel and musical instrument inner cavity The sympathetic response of body is changed into electric signal, then amplifies processing；In the utility model, the metal tape cap bar and central piezoelectric member Part and the equal close-coupled of panel, while the string vibration for picking up Ma Guchu and the panel vibration at face plate center, then pass to coupling Closely several central piezoelectric elements are closed, provide more true reproduction for the primary sound performance of guitar, audio is more preferable.

The conducting structure further includes the pickup pedestal 8 of installation center piezoelectric element, in the non-of central piezoelectric element Incude side and apply quality, and the conducting structure is fixedly mounted on corresponding bridge lower position inside stringed musical instrument；It is described to pick up The upper surface of sound pedestal is successively equidistantly fixed with the bottom end of the central piezoelectric element, and inside is equipped with pickup circuit device, and leads to The installation bolt 80 and nut 81 for crossing both ends sequentially pass through bridge stiffening plate and panel is fixedly attached to horse bone slot both ends.In order to The non-inductive side of central piezoelectric element, that is, that side for being not directly contacted with stringed musical instrument apply biggish quality, and the pickup pedestal is adopted It is manufactured with the metal or alloy material that hardness is big, density is big.Central piezoelectric element itself has bigger volume simultaneously, so that this When utility model is coupled on stringed musical instrument, there is biggish quality in that side for being not directly contacted with stringed musical instrument, and piezoelectric effect is more preferable, can be with Generate bigger electric signal output；Meanwhile coupled with stringed musical instrument more closely secured, reduce feedback noise appearance can Can, improve pickup efficiency.

The pickup circuit device is provided with for connecting several central piezoelectric elements for exporting several centers First outlet line of piezoelectric element sensing signal, the first outlet line external connection electroacoustic preamplifier.In this reality It applies in case, the utility model only has an outlet line, i.e. a conducting wire external connection electroacoustic preamplifier.

The diameter of the location hole 60 is less than or equal to the width of the horse bone slot, and the horse bone groove width of west standard is 3.2mm, but the country is much 3mm, or even has 2.8mm and 2.5mm, in the implementation case, according to the horse bone groove width of stringed musical instrument Degree is different, and the diameter of the location hole 60 is 1mm~3.2mm.

The diameter of the location hole is no more than 3 millimeters；The installation screw bolt and nut is the 3 millimeters of bolts and spiral shell matched It is female.The utility model can be held the lower section for being extremely tightly coupled to panel well in other words, and the direction of the bolt is from horse Inside bone slot down, the nut up screws from the inside, further ensures the fastness of coupling.Neither influence guitar Structure nor affects on guitar appearance, will affect the prior art of guitar structure when far superior to installing.

The nut of the installation bolt is T-shaped or inverted " L " font, to adapt to the installation in horse bone slot, in this way Once being installed, entire assembly is with regard to invisible.The utility model can be more than the third implementation of the prior art Add firm coupling, because original the third is achieved in that locks aluminium base from the both ends in horse bone slot by screw down The screw hole at both ends, dependence be exactly screw thread on aluminium base tapping；And in the utility model, the screw terminal of T-type or L-type is in horse There are one nuts while bone slot both ends are locked down, below the screw hole of aluminium base for fixing, and thus substantially increases The efficiency of coupling allows sound transmission to obtain more smooth, and pickup is sensitiveer, and tone color is more natural.

The pickup pedestal 8 is surfacing and the firm aluminium or brass profile of quality, therefore is avoided in the prior art It is common it is relevant with strip piezoelectric system contact non-uniform problem, while aluminium or brass profile are that hardness and quality are all very big Metal material, weight needed for can satisfy pickup pedestal, and themselves as propagate vibration a ring be good conductor.

The pickup pedestal is additionally provided with the electric shield layer for shielding radio frequency.As in specific embodiment One kind, the pickup pedestal include the plastic housing that shielding paint has been brushed in solid aluminum strip and outer surface, the related pressure in plastic housing outer surface The outer surface of electric device and plastic housing splicing coats copper powder shielding Qi Zuowei electric shield layer jointly.

The contact area size at the back side on the top and panel in the cap portion 62 has adjustability, can be by adjusting contact surface Long-pending size come balance with bar portion top pick up horse bone and string vibration rational proportion.

For the utility model compared with the third implementation of the prior art, difference has 3 points: 1. prior art thirds Kind implementation needs preparatory aperture, and the timber of bridge, panel and bridge stiffening plate position has a little loss, because aperture Words are to need 5mm or so to accommodate pickup column, this will affect the intensity of wood product structure and the intensity of coupling, and the utility model As long as aperture accommodates the metal cap bar within 3mm；2. the third implementation of the prior art needs preparatory aperture, and Higher to the thickness requirement of bridge stiffening plate and panel, if too thick, piezo column is too short to be cannot pass through, and can not put in horse bone slot, It cannot be pressed by horse bone, it can not pickup；3. the utility model increases pickup column using metal medium (metal tape cap bar) Active length, so that the vibration of wood plank itself, the vibration rather than just string, can also be picked, it is further abundant Tone color.

Case study on implementation two: referring to Fig. 7, case study on implementation two and case study on implementation one the difference is that: in addition to 6 centers Other than piezoelectric element, the conducting structure further includes 2~8 Secondary piezoelectric elements 9, for incuding the vibration of the face plate center Dynamic, the quantity and position that Secondary piezoelectric element is arranged are needed depending on practical application；In the implementation case, the conducting structure packet 4 Secondary piezoelectric elements are included, the pickup pedestal upper surface of centrally disposed piezoelectric element two sides, and top gapless set are distributed The metal cap 91 being equipped with for transmitting panel vibration is closed, the top of the metal cap is closely pressed with bridge stiffening plate to be contacted.

The Secondary piezoelectric element and the metal cap for being mounted on its top are limited with space, when it is implemented, auxiliary pressure Electric device should be close to central piezoelectric element as far as possible, and installation site is without departing from bridge stiffening plate, because the amplitude at bridge is most Greatly, it vibrates most strong.

Several Secondary piezoelectric elements connect pickup circuit device, are additionally provided on the pickup circuit device for defeated Second outlet line of several Secondary piezoelectric element sensing signals out；Second outlet line is also put before external connection electroacoustic Big device.

In the implementation case, pickup circuit device includes the first output circuit module and the second output circuit module, described First output circuit module connects 6 central piezoelectric elements and the first outlet line, the second output circuit module connection auxiliary pressure Electric device and the second outlet line, wherein for the first outlet line for exporting several central piezoelectric element sensing signals, second is defeated Route is for exporting several Secondary piezoelectric element sensing signals out；First outlet line and the second outlet line externally connect Connect electroacoustic preamplifier.In specific implementation, the first output circuit module and the second output circuit module can be integrated in same It on circuit board, or is two pieces of circuit boards independent；As one of embodiment, the second output circuit module is one piece Strip circuit board.

In case study on implementation two, for the utility model tool there are two outlet line, i.e. two conducting wire external connection electroacoustic are preposition Amplifier, two-way electronic output signal are sent to the same electroacoustic preamplifier, and there as input.

The ceramic component of the electric signal to match is generated when the central piezoelectric element and Secondary piezoelectric element are vibration.

In conclusion after those skilled in the art read the utility model file, skill according to the present utility model Art scheme and technical concept are not necessarily to creative mental labour and make other various corresponding conversion schemes, and it is practical new to belong to this The range that type is protected.

Claims (10)

1. the panel front of a kind of conducting structure for stringed musical instrument vibrating sensing and amplification system, the stringed musical instrument is equipped with qin Horse, the position that back side of panel corresponds to bridge are equipped with bridge stiffening plate, and solid string hole is provided on the bridge and installs the horse of horse bone Bone slot, the conducting structure are removably mounted below horse bone, it is characterised in that: including several central piezoelectric elements and fitting It is mounted on several metal tape cap bars on the top of the central piezoelectric element；The metal tape cap bar from top to bottom include one at The bar portion of type and cap portion, the top of the bar portion passes through the location hole matched and reaches in horse bone slot, and the bottom with horse bone Directly contact；Cap portion bottom end gapless fitting connects the top of the central piezoelectric element, cap portion top and bridge Stiffening plate closely presses contact.

2. a kind of conducting structure for stringed musical instrument vibrating sensing and amplification system according to claim 1, feature exist In: it further include pickup pedestal；The bottom end of the central piezoelectric element is successively equidistantly fixed in the upper surface of the pickup pedestal, internal Equipped with pickup circuit device, and bridge stiffening plate is sequentially passed through by the installation screw bolt and nut at both ends and panel is fixedly attached to Horse bone slot both ends；The pickup pedestal uses metal or alloy material.

3. a kind of conducting structure for stringed musical instrument vibrating sensing and amplification system according to claim 2, feature exist In: it further include several Secondary piezoelectric elements；Several Secondary piezoelectric elements are distributed picking up for centrally disposed piezoelectric element two sides Sound pedestal upper surface, and top gapless fitting is equipped with the metal cap for transmitting panel vibration, the top of the metal cap It closely presses and contacts with bridge stiffening plate.

4. a kind of conducting structure for stringed musical instrument vibrating sensing and amplification system according to claim 2 or 3, feature Be: the contact area size of cap portion top and bridge stiffening plate has adjustability；The diameter of the location hole be less than or Equal to the width of the horse bone slot.

5. a kind of conducting structure for stringed musical instrument vibrating sensing and amplification system according to claim 4, feature exist In: the diameter of the location hole is no more than 3 millimeters；The installation screw bolt and nut is the 3 millimeters of screw bolt and nut matched.

6. a kind of conducting structure for stringed musical instrument vibrating sensing and amplification system according to claim 4, feature exist In: the nut of the installation bolt is T-shaped or inverted " L " font, to adapt to the installation in horse bone slot.

7. a kind of conducting structure for stringed musical instrument vibrating sensing and amplification system according to claim 4, feature exist In: the pickup pedestal be surfacing and firm aluminium, brass or other mental sections of quality.

8. a kind of conducting structure for stringed musical instrument vibrating sensing and amplification system according to claim 4, feature exist In: the pickup pedestal is additionally provided with the electric shield layer for shielding radio frequency.

9. according to a kind of described in any item conducting structures for stringed musical instrument vibrating sensing and amplification system of claim 5 to 8, It is characterized by: the stringed musical instrument is guitar, the quantity of the metal tape cap bar and central piezoelectric element is 6.

10. a kind of conducting structure for stringed musical instrument vibrating sensing and amplification system according to claim 3, feature exist In: the quantity of the Secondary piezoelectric element is 2~8.