CN110248291B - Loudspeaker with airtight ring in HIFI sound box and damping strengthening method - Google Patents
Loudspeaker with airtight ring in HIFI sound box and damping strengthening method Download PDFInfo
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- CN110248291B CN110248291B CN201910580922.7A CN201910580922A CN110248291B CN 110248291 B CN110248291 B CN 110248291B CN 201910580922 A CN201910580922 A CN 201910580922A CN 110248291 B CN110248291 B CN 110248291B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/26—Damping by means acting directly on free portion of diaphragm or cone
Abstract
The invention discloses a loudspeaker with an airtight ring in an applied HIFI sound box, which relates to the technical field of loudspeakers and comprises a vibrating plate and the airtight ring, wherein the airtight ring comprises a suspension edge, an airtight cavity and an air-break interlayer, the air-break interlayer comprises a piston, the air-break interlayer first plays a role in transverse support as same as a support beam (5 in figure 3) of L itovsky, the second air-break interlayer can be matched with the suspension edge and the air pressure in an independent space in the suspension edge to better transversely support the vibrating plate, and the third air-break interlayer can also control the flow and the pressure of the air in the independent space, so that the irregular movement of the vibrating plate is inhibited, the technical effect of distortion is reduced, and the loudspeaker has good sound reproduction.
Description
Technical Field
The invention relates to the technical field of speakers, in particular to a speaker with an airtight ring in a HIFI sound box and a damping strengthening method.
Background
With the popularity of small portable speakers, which are required to emit low frequency sound waves, passive radiator designs have become the first choice. The current designs commonly employ a diaphragm for a plate radiator supported only by a suspension as shown in fig. 1, and rarely a passive radiator of the conventional speaker type as shown in fig. 2, with both a damper and a suspension support. And the tuning frequency of the radiator is low in order to extend the response of low frequencies, and thus the mass of the radiator is large, so that the support control of the radiator is difficult with the suspended edge support alone, irregular movement or sway of the radiator is obvious, and bass reproduction effect is general. Therefore, the control of the large-mass radiator by only using the suspension edge support becomes a technical difficulty, and is a hot spot of the current research.
In order to improve the support and damping of the radiator, L itovsky, Bose company, as shown in FIG. 3, proposed a solution to improve the support and damping of the radiator by means of a support beam, and suppress the split vibration, based on experimental analysis, it was found that the support beam design of L itovsky was somewhat effective in improving the support, but not ideal, and its noted rockingmode, referred to as irregular lateral motion of the radiator, rather than L itovsky thought split vibration of the radiator's diaphragm, because the radiator operates at only a low frequency band.
Also, in order to improve the support and damping of the radiator, as shown in fig. 4, Sahyoun proposes a double-suspended-edge scheme, which is to solve the non-linearity problem that the upper half-cycle and the lower half-cycle are subjected to different elastic forces by the suspended edge when the radiator moves up and down in the case of a single suspended edge. While Philips proposed, as shown in fig. 5, is a number of closed air cell rings to provide additional air damping to improve the damping of the radiator vibrations and thus improve sound quality. While Philips' air chamber ring or tire design provides good air damping, the technical effect of improved support is yet to be enhanced. The reason is as follows:
the ideal motion of the radiator is controlled by the pressure in the enclosure, reciprocating in a vertical direction perpendicular to the plane of the radiator, which is vertical, and by the influence of gravity and elastic non-linearity of the skirt, while the radiator is moving vertically, some lateral irregular motion is added, i.e. L itovsky called Rockingmode "and Sahyoun called wobbble" rocking ".
Disclosure of Invention
One of the objects of the invention is to solve the problem of the prior art that it is not possible to have a more effective lateral support of the radiator with air damping to improve the sound quality.
Another object of the present invention is to provide a method for enhancing damping.
In order to achieve one of the purposes, the invention adopts the following technical scheme: use of a loudspeaker with a gastight ring in a HIFI cabinet, wherein it comprises: a vibrating plate; one end of the airtight ring is connected with the vibrating plate, and the airtight ring comprises: the hanging edge can be deformed in a telescopic way and is made of rubber or other elastic materials; the airtight cavity is formed by at least two hanging edges which are reversely attached up and down, and the airtight cavity is isolated from air outside the hanging edges; disconnected gas interlayer, disconnected gas interlayer distributes in airtight chamber, and disconnected gas interlayer cuts apart into two at least independent spaces with airtight chamber, and independent space is airtight each other, and the scalable deformation of disconnected gas interlayer adopts rubber or other elastic material that has, includes in the disconnected gas interlayer: and the piston is in power connection with the vibrating plate and is used for receiving stress on the vibrating plate and controlling the flow direction of gas or liquid in the independent space.
In the above technical solution, in the embodiment of the present invention, each air-blocking interlayer and each independent space are firstly adopted to stretch or extrude when the vibration plate moves transversely, so that the transverse movement of the vibration plate pulls or pushes the piston to move. Further make the piston to the independent space that the vibration board will be kept away from or be close to draw and inhale or push gas, impel the gas in independent space to flow to the piston position or pressurize gas under the piston effect, at this moment, when gas flow to the piston position, gas no longer tightly supports and struts the dangling limit, forces this independent space to retract under the dangling limit elastic force and diminishes. When the gas is pressurized under the action of the piston, the gas can be tightly propped against the suspended edge at the independent space side, so that the suspended edge expands and grows under the elastic action. And then the upper half part of the suspension edge is pulled and the lower half part of the suspension edge is adopted to abut against the vibrating plate and has the tendency of moving downwards under the action of gravity, so that the independent space is pressed, the air pressure of the upper half part of the independent space is further reduced, the air pressure of the lower half part of the independent space is increased, an upward damping force is generated, and the damping force of the independent space and the damping force generated by the air-break interlayer support the vibrating plate together.
Further, in the embodiment of the present invention, the speaker using the HIFI sound box with the airtight ring further includes: the side wall of the sound box is connected with the other end of the airtight ring.
Further, in the embodiment of the present invention, the independent spaces are a first air cavity, a second air cavity, a third air cavity and a fourth air cavity, respectively, and the first air cavity, the second air cavity, the third air cavity and the fourth air cavity are all communicated with the position of the piston.
Further, in the embodiment of the present invention, the air blocking barrier further includes: a main channel; the number of the push-suction channels is at least two, one end of each push-suction channel is communicated with the main channel, and the other end of each push-suction channel is communicated with the independent space; the driven rod is arranged in the main channel, and one end of the driven rod is connected with the vibrating plate; the connecting rod, the other end of the one end swing joint passive pole of connecting rod, the other end swing joint piston of connecting rod, the piston setting is in pushing away inhales the passageway, and the lateral wall that pushes away inhales the passageway is closely laminated to the outer wall of piston, and the piston seals and pushes away inhales the passageway for main channel and independent space all are airtight each other. When the vibrating plate moves transversely, the vibrating plate can firstly pull or push the driven rod, and the connecting rod is further forced to push the piston to move. The flow direction of gas or liquid in the independent space is controlled, expansion and contraction of the suspension edge are further controlled, irregular movement of the vibrating plate is inhibited, the technical effect of distortion is reduced, and good sound reproduction is achieved.
Further, in the embodiment of the present invention, the gas content in the main passage is larger than that of the independent space. The independent space is in a negative pressure state relative to the main channel, and the piston is tightly pulled, so that the piston is not easy to move, and the vibration plate is further supported.
Further, in the embodiment of the present invention, each of the independent spaces is filled with nitrogen or other gas or fluid.
Further, in the embodiment of the present invention, the shape of the overhanging fringe may be a circle, a racetrack, an ellipse or a rectangle.
The invention has the beneficial effects that:
firstly, the invention uses the way of sucking air into the independent space by the piston to make the air not tightly abut against the expanding suspension edge any more, and forces the independent space to shrink and become smaller under the action of the suspension edge elastic force, and when the vibration plate leaves the independent space, the suspension edge at the side of the independent space is not pressed by the vibration plate any more (because the weight of the vibration plate is supported by the suspension edge, and the suspension edge has elasticity, the suspension edge needs to tightly abut against the vibration plate, it should be noted that the independent space in the suspension edge is gas, that is, the gas gives a certain supporting force to the vibration plate, but it is not negligible that, when the suspension edge tightly abuts against the vibration plate, the suspension edge is pressed, that is, the suspension edge is not fully expanded, as shown in fig. 14, the gas in the independent space has pressure to the suspension edge abutting against the vibration plate, and it can also be considered that the gas at this time is a compressed spring, when the vibrating plate does not press the suspension edge any more, the suspension edge can be completely expanded at the moment, and a thrust is given to the vibrating plate), so that the effect of inhibiting irregular motion of the vibrating plate is achieved, the technical effect of distortion is reduced, and good sound reproduction is realized.
Secondly, the invention enables the gas to be more forcefully supported and the suspension edge to be expanded in a mode that the piston extrudes the gas in the independent space, so that when the vibration plate is close to the independent space, the suspension edge can inhibit the continuous transverse movement trend of the vibration plate in advance, the overlong transverse movement distance of the vibration plate is avoided, the force storage strength of the vibration plate is overlarge, the suppression of irregular movement of the vibration plate is facilitated, the technical effect of distortion is reduced, and the sound reproducing device has good sound reproducing.
Thirdly, the upper half part and the lower half part of the suspension edge are pulled and abutted against the vibrating plate, and the vibrating plate is supported by matching with the air-cut-off interlayer (as shown in fig. 15, because the gravity of the vibrating plate is mainly supported by the suspension edge, the upper half part and the lower half part of the suspension edge can be subjected to the pulling force and the pressure of the vibrating plate, and the supporting by the suspension edge alone is unstable), so that the downward movement of the vibration is avoided, the technical effect of distortion reduction is facilitated, and good sound reproduction is realized.
Fourthly, the first air-break interlayer of the invention not only has the same transverse supporting function as the supporting beam (5 in fig. 3) of L itovsky, but also can be matched with the dangling edge and the air pressure of the independent space in the dangling edge to better transversely support the vibrating plate, and the third air-break interlayer can also control the flow and the pressure of the air in the independent space, so that the irregular movement of the vibrating plate is inhibited, the technical effect of distortion is reduced, and the sound reproduction is good.
In order to achieve the second purpose, the invention adopts the following technical scheme: an enhanced damping method, comprising the steps of:
the vibration plate is stressed and deformed, when the vibration plate moves transversely, each air-break interlayer and each independent space can be stretched or extruded, and meanwhile, the transverse movement of the vibration plate can pull or push the piston to move;
the transverse moving force is inhibited, in the moving process of pulling the piston by the vibrating plate, the piston can pull the independent space away from the vibrating plate to suck air or absorb fluid, so that the gas or the fluid in the independent space flows to the piston position, the gas or the fluid is not tightly propped against the spreading suspended edge any more, and the independent space is forced to retract and become small under the action of the elastic force of the suspended edge; similarly, in the process that the vibrating plate pushes the piston to move, the piston pushes an independent space close to the vibrating plate to push gas or liquid in the independent space to move, so that the gas or the liquid is tightly propped against a suspension edge on the side of the independent space, the suspension edge expands and grows under the elastic action force, and the transverse motion tendency of the vibrating plate is inhibited;
the vibration plate can pull the upper half part of the suspension edge and press the lower half part of the suspension edge when the vibration plate has the tendency of moving downwards under the action of gravity, the independent space can be pressed, the air pressure of the upper half part of the independent space is reduced, upward damping force is generated, the air pressure of the lower half part of the independent space is increased, upward damping force is generated, and the damping force generated by the air-break interlayer and the damping force of the independent space support the vibration plate together.
Further, in the embodiment of the invention, in the forced deformation step, when the vibration plate moves transversely, the vibration plate may first pull or push the passive rod, so that the connecting rod is further forced to push the piston to move.
Further, in the embodiment of the present invention, in the transverse supporting step, the independent space is in a negative pressure state with respect to the main channel by a method that the gas content in the main channel is greater than the gas content in the independent space, and the piston is tightly pulled, so that the piston is not easy to move, and the vibration plate is further supported.
Drawings
Fig. 1 is a schematic view of a currently commonly used flat passive radiator supported by a single suspension, in which 1 is a suspension and 2 is a vibrating plate.
Fig. 2 is a schematic view of a conventional speaker type passive radiator, in which 1.1 is a hanging edge, 4 is an elastic wave, and 3 is a vibration part cone.
FIG. 3 is a drawing 3 of the L itovsky US7,568,552 patent, with the numbering changed to that of the patent, 1.2 being the dangling edge, 2.1 being the vibrating plate, 5 being the support beam, and 6 being the tank wall or bracket.
Fig. 4 is fig. 2 of Philips US6, 658,129, which has been modified to the patent number, 2.2 is a vibrating plate, 2.3 is an additional vibrating mass, 7, 7.1 are two annular air chambers formed by two oppositely attached flanges 1.3, 1.4, respectively, above and below, together with the vibrating mass 2.3, and 6.1 is a bracket.
Fig. 5 is fig. 7 of Sayhoun US6,044,925, the number of which has been changed to this patent number, 7.2 is an air chamber formed between left and right oppositely-fitted hanging edges 1.5, 2.4 is a vibrating plate, and 6.2 is a bracket or a wall of a sound box.
Fig. 6 is a schematic plan view of a loudspeaker with an airtight ring in a HIFI cabinet to which an embodiment of the present invention is applied.
Fig. 7 is a schematic sectional view a-a of fig. 6.
Fig. 8 is a schematic sectional view B-B of fig. 7.
Fig. 9 is a schematic structural diagram of a loudspeaker with an airtight ring in a HIFI sound box to which an embodiment of the present invention is applied.
FIG. 10 is a schematic view of a portion of an embodiment of the air break barrier of the present invention.
Fig. 11 is a schematic diagram of the movement of a loudspeaker with an airtight ring in a HIFI sound box to which an embodiment of the present invention is applied.
FIG. 12 is a schematic view of the movement of a portion of the interrupted air barrier of FIG. 11.
Figure 13 is a schematic view of a portion of the movement of the alternative air break barrier of figure 11.
Fig. 14 is a schematic view of the air-tight ring and the radiator according to the embodiment of the present invention.
Fig. 15 is another schematic view of the airtight ring and the radiator according to the embodiment of the present invention.
In the attached drawings
100. Vibration plate 200, airtight ring 210, dangling edge
220. An airtight chamber 221, a first air chamber 222, a second air chamber
223. Third air cavity 224, fourth air cavity 230, and air-break interlayer
231. Main channel 232, push-suction channel 233 and passive rod
234. Piston 235, connecting rod 240, portion to be expanded
300. Side wall of sound box
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clear and fully described, embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of some embodiments of the invention and are not limiting of the invention, and that all other embodiments obtained by those of ordinary skill in the art without the exercise of inventive faculty are within the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "a," "an," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
For the purposes of simplicity and explanation, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. But it is obvious. To one of ordinary skill in the art, the embodiments may be practiced without limitation to these specific details. In some instances, well-known pipe machining methods and structures have not been described in detail to avoid unnecessarily obscuring the embodiments. In addition, all embodiments may be used in combination with each other.
The first embodiment is as follows:
a sounder having an airtight ring 200 in a HIFI cabinet is used, as shown in fig. 6, which comprises: vibration plate 100, airtight ring 200.
As shown in fig. 7 and 8, the airtight ring 200 has one end connected to the vibration plate 100, and the airtight ring 200 includes: a hanging edge 210, an airtight chamber 220, and an air-cutoff barrier 230.
The overhanging fringe 210 is also called "fringe" in english, and is a flexibly connected suspension member of a vibration member such as a diaphragm or a vibration plate 100 and a fixed portion such as a bracket, and is usually made of a material such as rubber, so it is commonly called "rubber fringe".
As shown in fig. 7, the hanging edge 210 can be deformed in a retractable manner, and the hanging edge 210 is made of rubber or other elastic materials. The airtight chamber 220 is formed by at least two hanging edges 210 which are attached up and down in opposite directions, and the airtight chamber 220 is isolated from the air outside the hanging edges 210.
As shown in fig. 8, 9 and 10, the air-blocking barrier 230 is distributed in the airtight chamber 220, the air-blocking barrier 230 divides the airtight chamber 220 into at least two independent spaces, the independent spaces are airtight, the air-blocking barrier 230 can be deformed in a telescopic manner, the air-blocking barrier 230 is made of rubber or other elastic materials, a piston 234 is arranged in the air-blocking barrier 230, the piston 234 is in power connection with the vibrating plate 100, and the piston 234 is used for receiving stress on the vibrating plate 100 and controlling the flow direction of gas or liquid in the independent spaces.
The implementation steps are as follows: as shown in fig. 11 to 13, each of the air cutoff barriers 230 and each of the independent spaces are first used to stretch or compress when the vibration plate 100 moves laterally downward, so that the downward lateral movement of the vibration plate 100 pulls or pushes the piston 234 to move. Further, the piston 234 pulls the independent space (the first air cavity 221) away from the vibrating plate 100 or the independent space (the third air cavity 223) close to the vibrating plate to suck or push air, so that the air in the independent space (the first air cavity 221) flows to the position of the piston 234 or is pressurized by the piston 234 (the third air cavity 223), and at the moment, when the air flows to the position of the piston 234, the air does not tightly abut against the spreading suspended edge 210 any more, so that the independent space (the first air cavity 221) is forced to retract and become small under the elastic force of the suspended edge 210. Also when the gas is pressurized by the piston 234, the gas is tightly pressed against the hanging edge 210 on the side of the independent space (third gas chamber), so that the hanging edge 210 is expanded under the elastic force. Then, the upper half of the suspension edge 210 is pulled, and the lower half of the suspension edge 210 abuts against the vibrating plate 100 and has a tendency of moving downwards under the action of gravity, so that the independent space is pressed, the air pressure of the upper half of the independent space is further reduced, the air pressure of the lower half of the independent space is increased, an upward damping force is generated, and the damping force of the independent space and the damping force generated by the air-cut-off interlayer 230 support the vibrating plate 100 together.
First, in the present invention, the air is sucked into the independent space by the piston 234, so that the air is not tightly pressed against the expanded suspension edge 210, the independent space is forced to shrink under the elastic force of the suspension edge 210, and the suspension edge 210 at the independent space side is not pressed by the vibration plate 100 when the vibration plate 100 leaves the independent space (because the weight of the vibration plate 100 is supported by the suspension edge 210, and the suspension edge 210 is elastic, the suspension edge 210 needs to be tightly pressed against the vibration plate 100. it should be noted that the independent space in the suspension edge 210 is air-containing, that is, the air gives a certain supporting force to the vibration plate 100, but is not negligible, when the suspension edge 210 is tightly pressed against the vibration plate 100, that is, the suspension edge 210 is not fully expanded, as shown in fig. 14, there is a portion to be expanded, and the air in the independent space is pressurized against the suspension edge 210 of the vibration plate 100, it is also considered that the gas at this time is a compressed spring, and when the vibration plate 100 does not press the suspension 210 any more, the suspension 210 is completely expanded to give a pushing force to the vibration plate 100), so that an effect of suppressing irregular motion of the vibration plate 100 is obtained, a technical effect of reducing distortion is obtained, and a good sound reproduction is achieved.
Secondly, in the invention, the gas is more strongly resisted and the hanging edge 210 is expanded by the way that the piston 234 extrudes the gas in the independent space, so that when the vibration plate 100 is close to the independent space, the hanging edge 210 can inhibit the continuous transverse movement trend of the vibration plate 100 in advance, the phenomenon that the transverse movement distance of the vibration plate 100 is too long is avoided, the excessive force of the vibration plate 100 is avoided, the inhibition of the irregular movement of the vibration plate 100 is facilitated, the technical effect of distortion is reduced, and the sound reproduction is good.
Thirdly, the upper and lower halves of the suspension edge 210 are used to pull and abut against the vibrating plate 100, and the air-break interlayer 230 is used to support the vibrating plate 100 (as shown in fig. 15, since the gravity of the vibrating plate 100 is mainly supported by the suspension edge 210, the upper half and the lower half of the suspension edge 210 will be subjected to the pulling force and pressure of the vibrating plate 100, and the support by the suspension edge 210 alone is unstable), so as to avoid the downward movement of vibration, which is beneficial to reducing the technical effect of distortion and has good sound reproduction.
Fourthly, the first air interruption barrier 230 of the present invention not only has the same lateral support function as the support beam (5 in fig. 3) of L itovsky, but also the second air interruption barrier 230 can cooperate with the air pressure of the hanging edge 210 and the independent space therein to better laterally support the vibration plate 100, and the third air interruption barrier 230 can also control the flow and pressure of the air in the independent space, so as to obtain the inhibition function for the irregular movement of the vibration plate 100, reduce the technical effect of distortion, and have good sound reproduction.
Preferably, the sounder with the airtight ring 200 in the HIFI sound box further comprises: a cabinet side wall 300, and the cabinet side wall 300 is connected to the other end of the airtight ring 200.
Preferably, the independent spaces are a first air chamber 221, a second air chamber 222, a third air chamber 223 and a fourth air chamber 224, respectively, and the first air chamber 221, the second air chamber 222, the third air chamber 223 and the fourth air chamber 224 are all communicated with the position of the piston 234.
Preferably, the air cutoff barrier 230 further comprises: main channel 231, push-suction channel 232, passive rod 233, connecting rod 235.
The number of the push-suction channels 232 is at least two, one end of the push-suction channel 232 is communicated with the main channel 231, and the other end of the push-suction channel 232 is communicated with the independent space.
A passive rod 233 is disposed in the main channel 231, and one end of the passive rod 233 is connected to the vibration plate 100.
One end of the connecting rod 235 is movably connected with the other end of the driven rod 233, the other end of the connecting rod 235 is movably connected with the piston 234, the piston 234 is arranged in the push-suction channel 232, the outer wall surface of the piston 234 is tightly attached to the side wall of the push-suction channel 232, and the piston 234 seals the push-suction channel 232, so that the main channel 231 and the independent space are airtight.
When the vibration plate 100 moves laterally, the vibration plate 100 will first pull or push the passive rod 233, so that the connecting rod 235 is forced to push the piston 234 to move. The flow direction of the gas or liquid in the independent space is controlled, the expansion and contraction of the suspension edge 210 are further controlled, the irregular movement of the vibration plate 100 is favorably inhibited, the technical effect of distortion is reduced, and the sound reproduction is good.
More preferably, the gas content in the main passage 231 is greater than the gas content of the independent space. The independent space is in a negative pressure state with respect to the main channel 231, and the piston 234 is tightly pulled, so that the piston 234 is not easily moved, and the vibration plate 100 is further supported.
Preferably, each of the individual spaces is filled with nitrogen or other gas or fluid.
Preferably, the shape of the hanging edge 210 may be circular, racetrack, oval, or rectangular.
An enhanced damping method, comprising the steps of:
when the vibration plate 100 is deformed by a force, each air-break partition 230 and each independent space are stretched or compressed when the vibration plate 100 performs a transverse motion, and the transverse motion of the vibration plate 100 also pulls or pushes the piston 234 to move.
And the transverse moving force is inhibited, and in the process that the vibrating plate 100 pulls the piston 234 to move, the piston 234 pulls to suck air or suck fluid to an independent space away from the vibrating plate 100, so that the gas or the fluid in the independent space flows to the position of the piston 234, the gas or the fluid is not tightly pressed against the spreading suspended edge 210 any more, and the independent space is forced to retract and become small under the elastic force of the suspended edge 210. Also in the process that the vibration plate 100 pushes the piston 234 to move, the piston 234 pushes an independent space near the vibration plate 100 to push the gas or liquid in the independent space to move, so that the gas or liquid is tightly pressed against the hanging edge 210 at the side of the independent space, and the hanging edge 210 expands and enlarges under the elastic force, thereby inhibiting the lateral motion tendency of the vibration plate 100.
When the vibrating plate 100 has a tendency of moving downward under the action of gravity, the vibrating plate 100 pulls the upper half of the suspension edge 210 and presses the lower half of the suspension edge 210, the independent space is pressed, the air pressure of the upper half of the independent space is reduced to generate an upward damping force, the air pressure of the lower half of the independent space is increased to generate an upward damping force, and the damping force of the independent space and the damping force generated by the air-break interlayer 230 support the vibrating plate 100 together.
Preferably, in the forced deformation step, when the vibration plate 100 moves transversely, the vibration plate 100 will first pull or push the driven rod 233, so that the connecting rod 235 is forced to push the piston 234 to move.
Preferably, in the lateral supporting step, the independent space is in a negative pressure state with respect to the main passage 231 by a method in which the gas content in the main passage 231 is greater than that of the independent space, and the piston 234 is tightly pulled so that the piston 234 is not easily moved, further supporting the vibration plate 100.
Although the illustrative embodiments of the present invention have been described above to enable those skilled in the art to understand the present invention, the present invention is not limited to the scope of the embodiments, and it is apparent to those skilled in the art that all the inventive concepts using the present invention are protected as long as they can be changed within the spirit and scope of the present invention as defined and defined by the appended claims.
Claims (10)
1. Use of a loudspeaker with a gastight ring in a HIFI cabinet, wherein it comprises:
a vibrating plate;
one end of the airtight ring is connected with the vibrating plate, and the airtight ring comprises:
a hanging edge that is telescopically deformable;
the air-tight cavity is formed by at least two hanging edges which are attached in an up-down reverse mode, and the air-tight cavity is isolated from air outside the hanging edges;
the gas-cut-off interlayer is distributed in the airtight cavity, the gas-cut-off interlayer is used for dividing the airtight cavity into at least two independent spaces, the independent spaces are airtight, the gas-cut-off interlayer is in telescopic deformation, and the gas-cut-off interlayer comprises:
and the piston is in power connection with the vibrating plate and is used for receiving stress on the vibrating plate and controlling the flow direction of gas or liquid in the independent space.
2. The loudspeaker with the airtight ring in the application HIFI loudspeaker box of claim 1, wherein the loudspeaker with the airtight ring in the application HIFI loudspeaker box further comprises:
and the side wall of the sound box is connected with the other end of the airtight ring.
3. The loudspeaker with the airtight ring in the HIFI speaker for use according to claim 1, wherein the independent spaces are a first air chamber, a second air chamber, a third air chamber and a fourth air chamber, respectively, and the first air chamber, the second air chamber, the third air chamber and the fourth air chamber are all in communication with the position of the piston.
4. The use of a loudspeaker having an airtight ring in a HIFI cabinet as claimed in claim 1, wherein said air break barrier further comprises:
a main channel;
the number of the push-suction channels is at least two, one end of each push-suction channel is communicated with the main channel, and the other end of each push-suction channel is communicated with the independent space;
the passive rod is arranged in the main channel, and one end of the passive rod is connected with the vibration plate;
the connecting rod, the one end swing joint of connecting rod the other end of passive pole, the other end swing joint of connecting rod the piston, the piston sets up in the push-and-suction passageway, the outer wall of piston closely laminates the lateral wall of push-and-suction passageway, the piston is sealed the push-and-suction passageway makes the main entrance with independent space all is airtight each other.
5. The use of the HIFI loudspeaker with a gas-tight ring in a loudspeaker enclosure according to claim 4, wherein the gas content in the main channel is greater than the gas content of the separate space.
6. The HIFI loudspeaker with a gas-tight ring in a loudspeaker enclosure according to claim 1, wherein each of said separate spaces is filled with nitrogen or another gas or fluid.
7. The loudspeaker with the airtight ring in the HIFI loudspeaker box as claimed in claim 1, wherein the shape of the overhanging edge can be circular, racetrack, oval or rectangular.
8. A method of enhancing the damping of a loudspeaker according to any one of claims 1 to 7, comprising the steps of:
the vibration plate is stressed and deformed, when the vibration plate moves transversely, each air-break interlayer and each independent space can be stretched or extruded, and meanwhile, the transverse movement of the vibration plate can pull or push the piston to move;
inhibiting a transverse moving force, wherein in the process that the vibrating plate pulls the piston to move, the piston can pull, suck or suck fluid into the independent space away from the vibrating plate, so that the gas or the fluid in the independent space flows to the position of the piston, the gas or the fluid is not tightly propped against the spreading suspended edge any more, and the independent space is forced to retract and become small under the action of the elastic force of the suspended edge; in the process that the vibration plate pushes the piston to move, the piston pushes the independent space close to the vibration plate to push gas or liquid in the independent space to move, so that the gas or liquid is tightly propped against the suspension edge on the side of the independent space, the suspension edge expands and grows under the elastic action force, and the transverse motion trend of the vibration plate is inhibited;
the vibration plate can pull the upper half part of the suspension edge and press the lower half part of the suspension edge when the vibration plate has the tendency of moving downwards under the action of gravity, meanwhile, the independent space can be pressed, the air pressure of the upper half part of the independent space is reduced, upward damping force is generated, the air pressure of the lower half part of the independent space is increased, upward damping force is generated, and the damping force of the independent space and the damping force generated by the air-cut-off interlayer are together used for supporting the vibration plate.
9. The method for enhancing damping according to claim 8, wherein in the step of deforming under force, when the vibrating plate moves transversely, the vibrating plate further pushes the piston to move under force by pulling or pushing the driven rod.
10. A method for enhancing damping according to claim 8, wherein in the lateral supporting step, the independent space is under negative pressure with respect to the main channel by a method in which the gas content in the main channel is greater than the gas content of the independent space, and the piston is tightly pulled so that the piston is not easily moved, thereby further supporting the vibration plate.
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| CN201910580922.7A CN110248291B (en) | 2019-06-29 | 2019-06-29 | Loudspeaker with airtight ring in HIFI sound box and damping strengthening method |
| CN202010669201.6A CN111741413B (en) | 2019-06-29 | 2019-06-29 | Sound generator with airtight ring in applied HIFI sound box |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN111741413B (en) | 2021-05-25 |
| CN110248291A (en) | 2019-09-17 |
| CN111741413A (en) | 2020-10-02 |
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