CN114302308B - Super linear loudspeaker and test equipment thereof - Google Patents

Abstract

The invention discloses a super linear loudspeaker and test equipment thereof, and relates to the technical field of super linear loudspeaker test equipment. Above-mentioned scheme, the magnetism that is located the sliding part both sides is inhaled the piece and is cut off the power supply, the compression spring that is located magnetism and inhales piece one side receives and inhales when the piece circular telegram state for compression state, effectually prevent in the test procedure, because the production of vibration effect causes the upper and lower shell can vibrate the aggravation and collision dislocation production each other, thereby the detection effect to the test object is influenced, when effectual increase the closure time to upper and lower casing, the compactness between fixed cavity and the sliding part has been promoted, the noise of flowing sound when having reduced the air current and producing the gap through the collision between the casing, increase the accurate performance to the test object.

Description

Super linear loudspeaker and test equipment thereof

Technical Field

The invention relates to the technical field of super-linear loudspeaker test equipment, in particular to a super-linear loudspeaker and test equipment thereof.

Background

With the rapid development of mobile phone technology, the traditional speaker built in the mobile phone is gradually replaced by the ultra-linear speaker, and the ultra-linear speaker has many advantages of small total harmonic distortion, relatively larger power bearing capability, high efficiency of converting electromagnetic energy into sound energy, and the like compared with the traditional speaker for the mobile phone, and is increasingly favored in the field of mobile phone application.

In order to ensure the reliability of a product, the product needs to have no leakage at the position which is originally sealed in the design of a glue coating position except a sound outlet and a leakage port, an ultrasonic welding line, an in-mold injection molding steel sheet and the like, therefore, a product manufacturer needs to carry out air tightness detection on the product, in the process of detecting and testing the super-linear loudspeaker, frequency testing is carried out through a sounding part in the super-linear loudspeaker by mostly setting a testing frequency signal, in the testing process, the phenomenon that a magnet in the super-linear loudspeaker is resonated due to amplitude force generated when a voice coil in the sounding part vibrates is caused, a gap is generated between the voice coil and the magnet, misjudgment is caused on the tone quality and the frequency of the super-linear loudspeaker in the quality testing process, and the accuracy of testing equipment is reduced.

In addition, Chinese patent CN109005494B is searched to disclose a device and a method for detecting the air tightness of a miniature loudspeaker module, and the patent discloses that the loudspeaker module to be detected is arranged in a containing groove of a tool body, and a first cushion block is used for blocking a sound outlet of the loudspeaker module, and a second cushion block is used for blocking a leakage port of the loudspeaker module; the cover plate is covered on the base, the cover plate and the base are enclosed to form a closed detection space, a test signal frequency response is applied to the elastic needle, and finally, the frequency response change of the loudspeaker module in the detection space is detected through the microphone, so that the detection precision of the air tightness of the loudspeaker module is improved, and the misjudgment rate is reduced.

However, the following problems exist in the using process: the cushion blocks block the sound outlet and leakage outlet of the loudspeaker module, the cover plate is covered on the base, the cover plate and the base enclose to form a closed detection space, under the action force of the frequency response vibration of the loudspeaker module, the block and the connection point are subjected to the frequency response of the loudspeaker module to generate resonance effect, so that the periphery of the connection point and the upper and lower shells can vibrate and generate noise due to mutual collision and dislocation, and the air flow generates noise such as air flow sound when passing through the gap, thereby influencing the audition of the module, because the mutual holding of the air flow and the vibration generates vibration to the tool body for placing the loudspeaker module in the tool body, the loudspeaker module in the containing groove shakes, so that the loudspeaker module generates tiny gaps in the welding or bonding process, and when the detection is not carried out, after the detection space is assembled, the action force generated to the shell when the module works is continuously driven, the gap caused by the original untight sealing can be continuously enlarged, so that the acoustic performance of the whole machine is gradually deteriorated.

Accordingly, the present application provides a super linear speaker and a test apparatus thereof to meet the demand.

Disclosure of Invention

It is an object of the present application to provide a super linear speaker and a testing apparatus thereof to solve the problems set forth in the background above.

In order to achieve the purpose, the invention provides the following technical scheme:

a super linear loudspeaker and test equipment thereof comprise a loudspeaker module, wherein the loudspeaker module comprises a protective sleeve, a connecting part, a vibrating diaphragm, a conversion system and a magnetic part, the protective sleeve is of a cavity-shaped structure, the connecting part is connected with one side inside the protective sleeve, the conversion system and the magnetic part are fixed on one side of the connecting part, the conversion system is in communication connection with an external radio frequency structure, the magnetic part is arranged on one side of the conversion system in a frame-shaped structure, the vibrating diaphragm is arranged on the other side of the connecting part, and the protective sleeve is of a detachable coating structure;

connecting portion are platelike structure, and right conversion system and magnetic part stabilize the support, the connection portion runs through the column structure for the center, the magnetic part is crisscross form erects in run through the both sides of column structure for the center, and the conversion system is the mutual conversion column structure of electrical transformer sound, the outside cladding of magnetic part has the flexible piece, the flexible piece with one side looks butt of conversion system, the internally mounted of conversion system has the voice coil loudspeaker voice coil.

Preferably, including detection cavity, closing member and placing the board, its characterized in that: detect cavity fixed mounting in one side of closing, the closing includes fixed cavity, link up piece and sliding part, the sliding part is relative fixed cavity is the slip form, link up the piece with one side of sliding part is the shaping form as an organic whole, and with one side looks butt of detection cavity, the locking subassembly is installed respectively to the both sides of sliding part, the locking subassembly is inhaled piece, compression spring and locking round pin axle including magnetism.

Preferably, piece and external lines electric connection are inhaled to magnetism, one side slidable mounting of compression spring has the uide bushing, compression spring with one side of uide bushing can butt each other, one side of locking round pin axle with one side of uide bushing is connected, the locking round pin axle runs through one side of locking subassembly, two be platelike connection structure between the uide bushing, the uide bushing slip cup joint in the surface of guide post, two one side and one side looks butt of compression spring of platelike connection structure between the uide bushing, the inner chamber of locking subassembly is fixed with the guide post.

Preferably, the locking hole with locking round pin axle looks adaptation is seted up respectively to the both sides of fixed cavity, the linkage subassembly has been seted up to the inside of fixed cavity one side, the linkage subassembly includes linkage round pin axle, slide bar and first rotation piece, the sliding pin axle slide to settle in the inside in locking hole, the slide bar with the inside in locking hole is linked together, one side of slide bar through the sliding connection pole with the surface connection installation of first rotation piece, first rotation piece for the sliding connection pole is the dislocation form, the fixed rotation round pin axle that has cup jointed in inside of first rotation piece, one side of rotation round pin axle rotate install in the inside of fixed cavity one side, the fixed second that has cup jointed of opposite side of rotation round pin axle rotates the piece, the surperficial eccentric connection curved plate of installing of second rotation piece.

Preferably, the compression assembly is installed on one side of the connecting curved plate, the compression assembly comprises a piston piece, a telescopic cavity and an air supply channel, the piston piece is connected with one side of the connecting curved plate, the piston piece is slidably installed in the telescopic cavity, the air supply channel is communicated with the inside of the telescopic cavity, the placing plate is installed in the fixed cavity, a placing groove is formed in the surface of the placing plate, a flow distribution piece is installed on one side of the inside of the placing plate, the inside of the flow distribution piece is communicated with the inside of the air supply channel, two sides of the flow distribution piece are respectively communicated with air distribution channels, and two sides of the air distribution channels are respectively communicated with two sides of the placing groove.

Preferably, the top both sides of fixed cavity are fixed with the slide rail respectively, both sides increase the resistance strip respectively installed to one side of slide rail, the internally mounted of fixed cavity has the wave-absorbing subassembly, the both sides of sliding part bottom seted up respectively with the slide rail with increase the sliding tray of resistance strip looks adaptation, the locking subassembly is for dismantling cavity column structure, the quantity of uide bushing is two.

Preferably, the other side of the plate-shaped connecting structure between the two guide sleeves is connected with one side of the locking pin shaft, the linkage pin shaft and the sliding rod are mutually abutted, and the inside of the telescopic cavity is of a sealed structure and is filled with gas.

Preferably, the bottom plate is installed to one side of detection cavity and closing member, detect cavity and closing member slidable mounting in one side of bottom plate, the surface mounting of bottom plate one side has the support frame, one side of support frame is installed and is driven actuating cylinder, drive actuating cylinder the slip end with be perpendicular form between the bottom plate, the fixed cover of slip end that drives actuating cylinder has connect the butt, the butt with outside negative pressure air source is connected, and the hole has been seted up on the surface of one side.

Preferably, the internally mounted who detects the cavity send frequently, link up frame and controller, link up the frame with one side of fixed cavity installs mutually, send frequently one side of piece to run through the inside of fixed cavity, send frequently with the controller communication is connected, the internally mounted of fixed cavity has the sensor, the sensor with the controller communication is connected, controller and external display communication are connected, the both ends that detect the cavity inner chamber are fixed with joint spare respectively, joint spare is two-way cardboard column structure.

Preferably, the surface of the bottom plate is provided with a jacking groove, a loudspeaker module is arranged in the jacking groove, the loudspeaker module is matched with the placing groove on the surface of the placing plate, the protecting sleeve is matched with the placing groove on the surface of the placing plate, and two sides of the protecting sleeve are respectively abutted against two sides of the air distribution channel.

Compared with the prior art, the invention has the beneficial effects that:

1. in the scheme, the magnetic parts at two sides of the sliding part are powered off, the compression spring at one side of the magnetic part is in a compression state when being powered on by the magnetic part, when the compression spring is powered on to the power-off state by the magnetic part, the compression spring is correspondingly compressed to rebound, and when the magnetic part is powered off, the compression spring is changed from a power storage compression state to rebound for releasing, the plate-shaped connecting structure between the guide sleeves in the locking component is driven, the sliding is carried out along the vector direction of the locking pin shaft at one side of the plate-shaped connecting structure arranged between the guide sleeves along the surface of the guide post arranged in the locking component, and then one side of the plate-shaped connecting structure arranged between the guide sleeves is driven to support the locking pin shaft for equidirectional sliding, and then the locking pin shaft is driven to slide out of one side of the locking component and rapidly slide along the inside of the locking hole at the top end of the fixed cavity, carry out inseparable, quick closure to fixed cavity and sliding part, the inside of fixing cavity and sliding part forms inclosed detection space, effectually prevent at the test procedure, because the production of vibration effect causes the upper and lower casing can vibrate the aggravation and collide the dislocation production each other, and produce the noise, thereby the detection effect to the test article is influenced, when effectual increase is to the closure time of upper and lower casing, the compactness between fixed cavity and the sliding part has been promoted, the noise of flow when having reduced the air current and producing the gap through the collision between the casing, increase the accurate performance to the test article.

2. In the scheme, when the butt of the linkage pin shaft moves, the linkage pin shaft drives the sliding connecting rod to rotate at the same time, the linear moving force converts the first rotating piece into a rotating force, and further drives the rotating pin shaft in the first rotating piece to rotate in an equidirectional manner along one side in the fixed cavity, and further drives the second rotating piece fixedly sleeved on one side of the rotating pin shaft to rotate in an equidirectional manner, when the second rotating piece rotates, the connecting curved plate eccentrically arranged on the surface of the second rotating piece is driven to move in an equidirectional manner, and further drives the piston piece arranged on one side of the connecting curved plate to change the position, the eccentric rotation of the connecting curved plate drives the piston piece to perform linear reciprocating motion, the piston piece is slidably arranged in the telescopic cavity, and when the piston piece changes the position in the moving direction of the connecting curved plate, the gas in the telescopic cavity is pumped away in the direction of the connecting curved plate, and then the air in the air channel communicated with the inside of the telescopic cavity is driven to be pumped to the sliding direction of the piston piece, the other side of the air channel penetrates through the inside of the fixed cavity and is connected with the inside of the shunt piece arranged in the placing plate, the inside of the shunt piece is in a cavity shape, as part of the air in the air channel is pumped to the direction of the connecting curved plate, the air in the shunt piece is driven to correspondingly pump to one side of the air channel, as the air distribution channels are respectively arranged on one sides of the shunt piece, and the insides of the air distribution channels are communicated with the insides of the shunt piece, the air in the air distribution channels is driven to be correspondingly reduced, the other sides of the air distribution channels penetrate through the inside of the placing plate and are connected with the placing grooves on the surface of the placing plate, when the tested equipment is placed in the placing groove on the surface of the placing plate, and carry out the butt respectively with the both sides of branch gas passageway, and carry out the butt with the both sides by test equipment, to producing the negative pressure respectively by test equipment's both sides surface and adsorbing, and be fixed in the standing groove of standing board side surface with test equipment, reduce test equipment's dynamics of rocking, mention in the above-mentioned background of effectual prevention, because under the mutual addition of air current and vibration, place the speaker module in the frock body and produce the vibration, lead to the speaker module in the storage tank to produce and rock, further prevent that the speaker module is at welding or bonding process in-process, produce small gap, and when not detecting out, the effort that the module during operation produced the casing lasts the drive down, the gap that originally sealed not tight leads to, can constantly grow, make the problem of the acoustical property of complete machine worsen gradually.

3. Above-mentioned scheme, the sliding part carries out relative movement along fixed cavity's top, expose fixed cavity's inside, the object that will carry out the test is placed in the inside of the standing groove on fixed cavity inner chamber place plate surface, at this moment, the above-mentioned step of reverse operation is with fixed cavity pull-back to the initial position of sliding part and fixed cavity, and through link-up to butt joint in the surface that is located fixed cavity one side detection cavity, slide to the sliding of sliding part carries on spacingly, prevent that the sliding part from sliding too fast, produce damage and scratch to the surface that detects cavity one side, the barrier propterty between detection cavity and the closing member has been increased, guarantee the security performance in the use.

4. According to the scheme, the protective sleeve is of a detachable coating structure, the test equipment is coated and installed through the protective sleeve, the connecting portion, the vibrating diaphragm, the conversion system and the magnetic piece are protected, the inner elements are prevented from being scratched and damaged, the protective sleeve is made of high-rigidity or elastic materials, and the problems that the sound wave transmission speed is low and the test is inaccurate due to the fact that the sound wave is generated resistance due to too low rigidity and density are solved.

5. In the scheme, the conversion system generates communication reaction with the conversion system through the connection of an external radio frequency structure, transmits signals to the interior of the conversion system for sound conversion, when the voice is converted, the magnetic part is electrically connected with the external coil and is electrified to generate a magnetic field, the voice coil inside the conversion system is arranged in the magnetic field, when audio current passes through the voice coil, the current is acted by the magnetic field, so that the voice coil vibrates and sounds are emitted through the diaphragm, when the voice coil is vibrated, the flexible part is coated outside the magnetic part, and when the flexible part is abutted with the conversion system, the phenomenon that the magnetic part generates resonance due to the amplitude force generated when the voice coil vibrates is reduced, so that a gap is generated between the magnetic part and the conversion system, the tone quality and the frequency in the quality testing process of the loudspeaker module are judged by mistake, and the accuracy of the testing equipment is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the mounting structure of the closure and its detection chamber of the present invention;

FIG. 3 is a schematic side view of the sliding part according to the present invention;

FIG. 4 is an enlarged view of the structure at A of FIG. 3 according to the present invention;

FIG. 5 is a schematic cross-sectional view of the side of the fixing chamber according to the present invention;

FIG. 6 is a schematic view of a linkage assembly according to the present invention;

FIG. 7 is a schematic view of the compression assembly of the present invention;

FIG. 8 is a schematic view of the internal structure of the placing board of the present invention;

FIG. 9 is a schematic view of the internal structure of the detection chamber according to the present invention;

FIG. 10 is a schematic side view of the present invention in its entirety;

fig. 11 is a schematic structural diagram of a speaker module according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a detection cavity; 2. a closure; 3. placing the plate; 4. a wave-absorbing component; 5. resistance increasing strips; 6. a locking assembly; 7. a linkage assembly; 8. a compression assembly; 9. a base plate; 10. a support frame; 11. a driving cylinder; 12. an abutting member; 13. a speaker module; 21. fixing the cavity; 22. a penetration member; 23. a sliding part; 24. a locking hole; 61. a magnetic member; 62. a compression spring; 63. locking the pin shaft; 64. a guide sleeve; 71. a linkage pin shaft; 72. a slide bar; 73. a first rotating member; 74. a second rotating member; 75. connecting the curved plates; 76. rotating the pin shaft; 77. a sliding connecting rod; 81. a piston member; 82. a telescopic cavity; 83. an air supply channel; 84. a flow divider; 85. a gas distribution channel; 111. a frequency transmitting member; 112. a linking frame; 113. a controller; 114. a clamping piece; 131. a protective sleeve; 132. a connecting portion; 133. vibrating diaphragm; 134. a conversion system; 135. a magnetic member.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In this embodiment, referring to fig. 11, the speaker module 13 includes a protective cover 131, a connecting portion 132, a diaphragm 133, a conversion system 134, and a magnetic member 135, where the protective cover 131 is a cavity-shaped structure, and the following structure is installed, the connecting portion 132 is connected to one side inside the protective cover 131, the conversion system 134 and the magnetic member 135 are fixed to one side of the connecting portion 132, the conversion system 134 is in communication connection with the frequency transmitting member 111, the magnetic member 135 is installed to one side of the conversion system 134 in a frame-shaped structure, the diaphragm 133 is installed to the other side of the connecting portion 132, and the protective cover 131 is a detachable covering structure;

connecting portion 132 is the platelike structure, and support conversion system 134 and magnetism piece 135 firm, and connecting portion 132 is the central column structure that runs through, and magnetism piece 135 is crisscross form and erects 132 both sides for the central column structure that runs through, and conversion system 134 is the mutual conversion column structure of electricity change sound, and the outside cladding of magnetism piece 135 has the flexible piece, and one side looks butt of flexible piece and conversion system 134, one side looks butt of conversion system 134, and the internally mounted of conversion system 134 has the voice coil.

In the above solution, the converting system 134 is connected to the external rf structure, and generates a communication reaction with the converting system 134, and transmits a signal to the inside of the converting system 134 for sound conversion, when sound conversion is performed, the magnetic member 135 is electrically connected to the external coil, and is powered on to generate a magnetic field, the voice coil inside the converting system 134 is placed in the magnetic field, when an audio current passes through the voice coil, the current is subjected to an acting force of the magnetic field, so that the voice coil vibrates and emits sound through the diaphragm 133, when the voice coil vibrates, the flexible member is wrapped on the outer side of the magnetic member 135, and when the flexible member abuts against the converting system 134, the amplitude force generated when the voice coil vibrates is reduced to make the magnetic member 135 resonate, which results in a gap between the magnetic member 135 and the converting system 134, and causes misjudgment on the tone quality and frequency of the speaker module 13 during quality inspection, the accuracy of the testing equipment is reduced, and meanwhile, when the acoustic quality test is performed on the testing equipment, the protective sleeve 131, the connecting part 132, the vibrating diaphragm 133, the conversion system 134 and the magnetic part 135 are prevented from being exposed outside and generating friction with a placing station of the testing equipment while the internal structure is protected by the protective sleeve 131, so that the abrasion phenomenon among the structures is caused, and the protection performance is improved.

It is worth noting that the material of the protective sleeve 131 is selected to be high rigidity or elastic material, so as to prevent the problems of low sound wave transmission speed and inaccurate test caused by resistance generated by sound waves due to too low rigidity and density.

The embodiments of the present disclosure are different from the above embodiments in that: referring to fig. 1-10, the detection device comprises a detection cavity 1, a sealing member 2 and a placing plate 3, wherein the detection cavity 1 is fixedly installed on one side of the sealing member 2, the sealing member 2 comprises a fixed cavity 21, a through-member 22 and a sliding portion 23, the sliding portion 23 is in a sliding shape relative to the fixed cavity 21, the sliding portion 23 is dragged to one side, one side of the sliding portion 23 is driven to slide along two sides of the top of the fixed cavity 21 in a vector direction of the fixed cavity 21, a cavity part of the fixed cavity 21 is exposed, one side of the through-member 22 and one side of the sliding portion 23 are in an integrated shape and are abutted against one side of the detection cavity 1, and installation between the sliding portion 23 and the detection cavity 1 is limited, wherein the top of the sliding portion 23 is in an inclined structure, the shape of the fixed cavity 21 is matched with the shape of the sliding portion 23, and the width of the inner space of the fixed cavity 21 is ensured;

in this embodiment, the two sides of the sliding portion 23 are respectively installed with a locking assembly 6, the locking assembly 6 includes a magnetic attraction member 61, a compression spring 62 and a locking pin 63, the magnetic attraction member 61 is electrically connected with an external circuit, the magnetic attraction member 61 is electrified through the external circuit, the magnetic attraction member 61 is an electromagnet structure, one side of the compression spring 62 is slidably installed with a guide sleeve 64, one sides of the compression spring 62 and the guide sleeve 64 can be abutted against each other, one side of the locking pin 63 is connected with one side of the guide sleeve 64, the magnetic force generated by the magnetic attraction member 61 acts on one side of the compression spring 62 for attraction, the locking pin 63 penetrates one side of the locking assembly 6, a plate-shaped connecting structure is formed between the two guide sleeves 64, the guide sleeve 64 is slidably sleeved on the surface of the guide post to guide the advancing direction of the compression spring 62 and the locking pin 63, one side of the plate-shaped connecting structure between the two guide sleeves 64 is abutted against one side of the compression spring 62, guiding the locking pin shaft 63, wherein a guide column is fixed in the inner cavity of the locking assembly 6;

in this embodiment, the two sides of the fixing cavity 21 are respectively provided with a locking hole 24 adapted to the locking pin 63, the locking pin 63 is adapted to the locking hole 24, and slides in the locking hole 24, a linkage assembly 7 is arranged in one side of the fixed cavity 21, the linkage assembly 7 comprises a linkage pin shaft 71, a sliding rod 72 and a first rotating piece 73, the linkage pin shaft 71 is arranged in the locking hole 24 in a sliding way, the locking pin shaft 63 and the linkage pin shaft 71 are mutually abutted, the sliding rod 72 is communicated with the inside of the locking hole 24, the linkage pin shaft 71 is abutted from the locking pin shaft 63 and slides in the locking hole 24, the sliding rod 72 is abutted to one side, one side of the sliding rod 72 is connected and installed with the surface of the first rotating piece 73 through the sliding connecting rod 77, and the first rotating piece 73 is in a dislocation shape relative to the sliding connecting rod 77, so that the first rotating piece 73 can rotate;

in this embodiment, the sliding rod 72 is moved along the direction of the first rotating member 73 by the abutting force from the linking pin 71, and then the sliding connecting rod 77 drives the first rotating member 73 to rotate, so as to provide a rotating condition for the rotation of the first rotating member 73, a rotating pin 76 is fixedly sleeved inside the first rotating member 73, one side of the rotating pin 76 is rotatably installed inside one side of the fixed cavity 21, and further the rotating pin 76 is driven to rotate in the same direction along the inside of one side of the sliding rod 72, so as to ensure the stable rotation of the first rotating member 73, a second rotating member 74 is fixedly sleeved on the other side of the rotating pin 76, a connecting curved plate 75 is eccentrically installed on the surface of the second rotating member 74, and when the rotating pin 76 is subjected to the abutting force from the first rotating member 73, the second rotating member 74 is driven to rotate in the same direction along the rotating direction of the first rotating member 73, and further the connecting curved plate 75 is driven to rotate in the same direction, (ii) a

In this embodiment, a compression assembly 8 is installed at one side of the connection curved plate 75, the compression assembly 8 includes a piston 81, a flexible cavity 82 and an air supply channel 83, the piston 81 is connected to one side of the connection curved plate 75, the connection curved plate 75 is eccentrically rotated by the second rotating member 74 during rotation, and further drives the piston 81 to move along the vector direction of the connection curved plate 75, linear movement of the piston 81 is converted by rotational energy, the piston 81 is slidably installed inside the flexible cavity 82, the air supply channel 83 is communicated with the interior of the flexible cavity 82, when the connection curved plate 75 drives the piston 81 to move along the direction of the connection curved plate 75, one side of the piston 81 is driven to slide inside the flexible cavity 82, air inside the flexible cavity 82 is extracted in the moving direction of the piston 81, the placing plate 3 is installed inside the fixed cavity 21, and the surface is provided with a placing groove, one side of the interior of the placing plate 3 is provided with a flow dividing piece 84, the interior of the flow dividing piece 84 is communicated with the interior of the air feeding channel 83, two sides of the flow dividing piece 84 are respectively communicated with an air dividing channel 85, and two sides of the air dividing channel 85 are respectively communicated with two sides of the placing groove.

In the above-mentioned solution, referring to fig. 1-2, when testing the device, the sliding part 23 is dragged in the vector direction of the sliding part 23, the sliding part 23 moves relatively along the top end of the fixed cavity 21, the inside of the fixed cavity 21 is exposed, the object to be tested is placed in the placing groove on the surface of the placing plate 3 in the inner cavity of the fixed cavity 21, at this time, the above-mentioned steps are reversed to pull back the fixed cavity 21 to the initial positions of the sliding part 23 and the fixed cavity 21, and is butted against the surface of the detection cavity 1 at one side of the fixed cavity 21 through a through piece 22, the sliding of the sliding part 23 is limited, so that the sliding part 23 is prevented from sliding too fast to damage and scratch the surface of one side of the detection cavity 1, the protection performance between the detection cavity 1 and the closing piece 2 is improved, and the safety performance in the use process is ensured;

referring to fig. 3-4 and 9, the magnetic attraction piece 61 on both sides of the sliding portion 23 is powered off, the compression spring 62 on one side of the magnetic attraction piece 61 is compressed when being powered on by the magnetic attraction piece 61, and it is noted that when the compression spring 62 is powered on to the powered off state by the magnetic attraction piece 61, the compression spring 62 changes the compression state from the power storage compression state to the rebound state and releases the compression spring 62 when the magnetic attraction piece 61 is powered off, thereby driving the plate-shaped connection structure between the guide sleeves 64 inside the locking assembly 6 to slide along the surface of the guide post inside the locking assembly 6 along the vector direction of the locking pin 63 on one side of the plate-shaped connection structure installed between the guide sleeves 64, further driving one side of the plate-shaped connection structure located between the guide sleeves 64 to push the locking pin 63 to slide in the equal direction, further driving the locking pin 63 to slide out of one side of the locking assembly 6 and along the locking pin 24 located at the top end of the fixed cavity 21 The interior of the fixed cavity 21 and the sliding part 23 is quickly slid to tightly and quickly lock the fixed cavity 21 and the sliding part 23, and a closed detection space is formed in the fixed cavity 21 and the sliding part 23, so that the situation that noise is generated due to the fact that the upper and lower shells are accelerated in vibration and mutually collided and staggered in the test process is effectively prevented, the detection effect on a test object is influenced, the locking time of the upper and lower shells is effectively prolonged, meanwhile, the tightness between the fixed cavity 21 and the sliding part 23 is improved, the noise of flow sound generated when air flow collides between the shells to generate gaps is reduced, and the precision performance of the test object is improved;

referring to fig. 5-7, in the above solution, when the locking pin 63 inside the locking assembly 6 slides inside the locking hole 24 for locking, one side of the locking pin 63 abuts against one side of the linkage pin 71 inside the locking hole 24, and it should be noted that the quality of the locking pin 63 is greater than that of the linkage pin 71, when the locking pin 63 abuts against the surface of one side of the linkage pin 71, a rebound or a state where the linkage pin 71 cannot slide is not generated, and the linkage pin 71 can slide inside the locking hole 24;

when the interlocking pin 71 in the locking hole 24 is abutted by the locking pin 63, the interlocking pin 71 in the locking hole 24 slides along the inside of the locking hole 24, and further a squeezing force is generated between one side of the surface of the interlocking pin 71 and one side of the locking hole 24, which is communicated with the sliding rod 72, so as to drive the sliding rod 72 to move along the vector direction of the sliding connecting rod 77 installed on one side of the sliding rod 72, and further drive one side of the sliding connecting rod 77 to move in an equal direction, the first rotating member 73 located in one side of the fixed cavity 21 is in a gap shape relative to the sliding connecting rod 77, is connected with the first rotating member 73, is in a dislocation shape relative to one side of the sliding rod 72, and drives the sliding connecting rod 77 and drives when the sliding rod 72 and the sliding connecting rod 77 are abutted by the interlocking pin 71 to move (as shown in fig. 6, arrow direction), the first rotating member 73 is converted into a rotating force by a linear moving force, and then the rotating pin 76 inside the first rotating member 73 is driven to rotate in an equal direction along one side inside the fixed cavity 21, and the second rotating member 74 fixedly sleeved on one side of the rotating pin 76 is driven to rotate in an equal direction;

when the second rotating member 74 rotates, the connecting curved plate 75 eccentrically mounted on the surface of the second rotating member 74 is driven to move in the same direction, and further the piston 81 mounted on one side of the connecting curved plate 75 is driven to change the position, the eccentric rotation of the connecting curved plate 75 drives the piston 81 to perform linear reciprocating motion, it is noted that the length of the diameters of the linkage pin shaft 71 and the locking hole 24 is limited, the rotating directions of the first rotating member 73, the second rotating member 74, the connecting curved plate 75 and the rotating pin shaft 76 are smaller than or equal to the radius of the first rotating member 73, the second rotating member 74, the connecting curved plate 75 and the rotating pin shaft 76, and the piston 81 linked with the connecting curved plate 75 performs short-distance position change;

the piston 81 is slidably installed inside the flexible cavity 82, when the piston 81 changes its position in the moving direction of the connecting curved plate 75 (shown in fig. 7), the air inside the flexible cavity 82 is pumped in the direction of the connecting curved plate 75, and the air in the air channel 83 communicated with the inside of the flexible cavity 82 is pumped in the sliding direction of the piston 81, the other side of the air channel 83 penetrates through the inside of the fixed cavity 21 and is connected with the inside of the flow divider 84 installed inside the placing plate 3, the inside of the flow divider 84 is hollow, because a part of the air in the air channel 83 is pumped in the direction of the connecting curved plate 75, and the air in the flow divider 84 is pumped in the corresponding direction of the air channel 83, because one side of the flow divider 84 is respectively installed with the air channel 85, and the inside of the air channel 85 is communicated with the inside of the flow divider 84, and then drive the gas in the gas distribution channel 85 to reduce correspondingly, the other side of the gas distribution channel 85 penetrates the inside of the placing plate 3 and is connected with the placing groove on the surface of the placing plate 3, when the tested equipment is placed in the placing groove on the surface of the placing plate 3, the tested equipment is respectively butted with the two sides of the gas distribution channel 85 and is butted with the two sides of the tested equipment, the surfaces of the two sides of the tested equipment are respectively adsorbed by negative pressure, the testing equipment is fixed in the placing groove on the surface of one side of the placing plate 3, the shaking force of the testing equipment is reduced, the mentioned in the background is effectively prevented, because the air flow and the vibration are mutually supported, the loudspeaker module placed in the tool body is vibrated, the loudspeaker module in the containing groove is shaken, and further the loudspeaker module is prevented from generating micro gaps in the welding or bonding process, and when not detecting out, under the effort continuous drive that the module during operation produced the casing, the gap that originally sealed not tight leads to can constantly grow, makes the problem of the acoustic performance of complete machine worsen gradually.

In conclusion, the scheme has strong linkage and compact connection between the structures, so that the fixed cavity 21 and the penetrating piece 22 fix the inside of the locking hole 24 through the locking pin shaft 63, the locking pin shaft 63 abuts against the linkage pin shaft 71 to slide, the linkage sliding rod 72 slides, the first rotating piece 73 and the second rotating piece 74 are respectively driven to rotate in the same direction through the connection of the sliding connecting rod 77 and the first rotating piece 73, the surface of the second rotating piece 74 is further driven to rotate in the same direction eccentric to the connecting curved plate 75, the connecting curved plate 75 interlocks the piston piece 81 to perform linear motion, the gas in the telescopic cavity 82, the gas supply channel 83, the flow dividing piece 84 and the gas dividing channel 85 is pumped away in the direction of the connecting curved plate 75, the two sides of the gas dividing channel 85 abut against the two sides of the tested equipment in the placing groove on the side surface of the placing plate 3, produce the negative pressure respectively to the both sides surface by test equipment and adsorb to in being fixed in the standing groove of 3 side surfaces of plate of placing with test equipment, reduce test equipment's the dynamics of rocking, with the background problem of explaining in solving above-mentioned background.

As a preferred embodiment of this embodiment, referring to fig. 2, two sides of the top end of the fixed cavity 21 are respectively fixed with a sliding rail, one side of the sliding rail at two sides is respectively installed with a resistance increasing strip 5, the fixed cavity 21 is internally installed with a wave absorbing assembly 4, wherein the wave absorbing assembly 4 is made of sound absorbing cotton, so as to ensure the testing environment inside the fixed cavity 21 and prevent the reflection of sound waves inside the fixed cavity 21, two sides of the bottom end of the sliding part 23 are respectively provided with a sliding groove matched with the sliding rail and the resistance increasing strip 5, when guiding the fixed cavity 21, increasing the moving force of the fixed cavity 21 and the sliding part 23, and at the same time, performing spacing through the resistance increasing strip 5 to prevent the user or the electrical equipment driving the sliding part 23 to move too fast to cause damage to the fixed cavity 21, the locking assembly 6 is a detachable cavity-shaped structure, so as to facilitate maintenance of the structure inside the locking assembly 6, the quantity of uide bushing 64 is two, the opposite side of platelike connection structure is connected with one side of locking round pin axle 63 between two uide bushings 64, for the slip of locking round pin axle 63 provides the installation condition, linkage round pin axle 71 and the mutual butt of slide bar 72 carry out spacingly and provide power for the removal of slide bar 72, the inside of flexible cavity 82 is sealed column structure, and inside is filled with gas, the sealed design of flexible cavity 82, prevent that the inside gas of flexible cavity 82 from producing and leaking, cause and can't carry out the negative pressure and adsorb.

As a preferred embodiment of the present invention, referring to fig. 10, a bottom plate 9 is installed at one side of a detection chamber 1 and a sealing element 2, the detection chamber 1 and the sealing element 2 are installed at one side of the bottom plate 9 in a sliding manner, for example, a cylinder-slide rail assembly structure is automatically advanced, a support frame 10 is installed at a surface of one side of the bottom plate 9, a driving cylinder 11 is installed at one side of the support frame 10, a sliding end of the driving cylinder 11 and the bottom plate 9 are perpendicular, an abutting element 12 is fixedly sleeved at a sliding end of the driving cylinder 11, the abutting element 12 is connected with an external negative pressure air source by lifting the sliding end of the driving cylinder 11, and a hole is formed at a surface of one side to automatically transport a device to be tested by using the abutting element 12.

As a preferred embodiment of this embodiment, referring to fig. 9, a frequency transmitting member 111, a connecting frame 112 and a controller 113 are installed inside the detection cavity 1, the connecting frame 112 and one side of the fixed cavity 21 are installed, one side of the frequency transmitting member 111 penetrates through the inside of the fixed cavity 21 and penetrates through one side of the penetrating member 22 to be installed, the frequency transmitting member 111 and the controller 113 are connected in communication, a signal of a test frequency is sent to the controller 113 through the connecting frame 112, a sensor is installed inside the fixed cavity 21, the sensor is connected in communication with the controller 113, a sound signal of the test frequency is transmitted through the sensor, the controller 113 and an external display are connected in communication, and various control values of the test and the transmission are fed back to the external display to be displayed, wherein the external display includes, but is not limited to, an industrial computer, a liquid crystal display and the like. The two ends of the inner cavity of the detection cavity 1 are respectively fixed with a clamping piece 114, the clamping piece 114 is a bidirectional clamping plate-shaped structure and used for stably supporting the inside of the detection cavity 1, and the detection cavity 1 is rapidly installed through a clamping plate structure.

As a preferred embodiment of this embodiment, referring to fig. 10 to 11, a jacking groove is formed on the surface of the bottom plate 9, a speaker module 13 is installed inside the jacking groove, the speaker module 13 is adapted to the placing groove on the surface of the placing plate 3, wherein the device to be tested in the above embodiment is the speaker module 13, and the radio frequency structure is the frequency transmitter 111.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (10)

1. A super linear loudspeaker, includes speaker module (13), its characterized in that: the loudspeaker module (13) is composed of a protective sleeve (131), a connecting part (132), a vibrating diaphragm (133), a conversion system (134) and a magnetic part (135), the protective sleeve (131) is of a cavity-shaped structure, the connecting part (132) is connected with one side inside the protective sleeve (131), the conversion system (134) and the magnetic part (135) are fixed on one side of the connecting part (132), the conversion system (134) is in communication connection with an external radio frequency structure, the magnetic part (135) is of a frame-shaped structure and is installed on one side of the conversion system (134), the vibrating diaphragm (133) is arranged on the other side of the connecting part (132), and the protective sleeve (131) is of a detachable coating structure;

connecting portion (132) are platelike structure, and are right conversion system (134) and magnetic part (135) support firmly, connecting portion (132) run through the column structure for the center, magnetic part (135) are crisscross form and erect in connecting portion (132) run through the both sides of column structure for the center, and conversion system (134) are the mutual conversion column structure of electricity change sound, the outside cladding of magnetic part (135) has the flexible piece, the flexible piece with one side looks butt of conversion system (134), conversion system's internally mounted has the voice coil loudspeaker voice coil.

2. A test apparatus for a super linear speaker, adapted to the super linear speaker of claim 1, wherein: including detecting cavity (1), closing member (2) and placing board (3), detect cavity (1) fixed mounting in one side of closing member (2), closing member (2) are including fixed cavity (21), link up piece (22) and sliding part (23), sliding part (23) are relative fixed cavity (21) are the slip form, link up piece (22) with one side of sliding part (23) is the integrated shaping form, and with one side looks butt of detecting cavity (1), locking subassembly (6) is installed respectively to the both sides of sliding part (23), locking subassembly (6) are including magnetism inhale piece (61), compression spring (62) and round pin axle locking (63).

3. The test apparatus for a super linear speaker according to claim 2, wherein: magnetic part (61) and external lines electric connection, one side slidable mounting of compression spring (62) has uide bushing (64), compression spring (62) with one side of uide bushing (64) can the butt each other, one side of locking round pin axle (63) with one side of uide bushing (64) is connected, one side that locking round pin axle (63) run through locking subassembly (6) is two be platelike connection structure between uide bushing (64), uide bushing (64) slide cup joint in the surface of guide post, two one side of platelike connection structure and one side looks butt of compression spring (62) between uide bushing (64), the inner chamber of locking subassembly (6) is fixed with the guide post.

4. The test apparatus for a super linear speaker according to claim 3, wherein: the locking mechanism is characterized in that locking holes (24) matched with the locking pin shafts (63) are formed in two sides of the fixed cavity (21) respectively, a linkage assembly (7) is formed in the inner portion of one side of the fixed cavity (21), the linkage assembly (7) comprises a linkage pin shaft (71), a sliding rod (72) and a first rotating piece (73), the linkage pin shaft (71) is installed in the locking holes (24) in a sliding mode, the sliding rod (72) is communicated with the inner portion of the locking holes (24), one side of the sliding rod (72) is connected and installed with the surface of the first rotating piece (73) through a sliding connecting rod (77), the first rotating piece (73) is in a staggered mode relative to the sliding connecting rod (77), a rotating pin shaft (76) is fixedly sleeved in the inner portion of the first rotating piece (73), one side of the rotating pin shaft (76) is rotatably installed in the inner portion of one side of the fixed cavity (21), the other side of the rotating pin shaft (76) is fixedly sleeved with a second rotating piece (74), and a connecting curved plate (75) is eccentrically installed on the surface of the second rotating piece (74).

5. The test apparatus for a super linear speaker according to claim 4, wherein: a compression assembly (8) is arranged on one side of the connecting curved plate (75), the compression assembly (8) comprises a piston piece (81), a telescopic cavity (82) and an air feeding channel (83), the piston piece (81) is connected with one side of the connecting curved plate (75), the piston piece (81) is arranged in the telescopic cavity (82) in a sliding way, the air feeding channel (83) is communicated with the inside of the telescopic cavity (82), the placing plate (3) is arranged in the fixed cavity (21), a placing groove is arranged on the surface of the placing plate, a shunt piece (84) is arranged on one side inside the placing plate (3), the interior of the flow divider (84) communicates with the interior of the air feed passage (83), the two sides of the flow dividing piece (84) are respectively communicated with a gas dividing channel (85), and the two sides of the gas dividing channel (85) are respectively communicated with the two sides of the placing groove.

6. The test apparatus for a super linear speaker according to claim 5, wherein: the top both sides of fixed cavity (21) are fixed with the slide rail respectively, both sides increase and hinder strip (5) are installed respectively to one side of slide rail, the internally mounted of fixed cavity (21) has ripples subassembly (4), the both sides of sliding part (23) bottom seted up respectively with the slide rail with increase the sliding tray of hindering strip (5) looks adaptation, locking subassembly (6) are detachable cavity column structure.

7. The test apparatus for a super linear speaker according to claim 6, wherein: the other side of the plate-shaped connecting structure between the two guide sleeves (64) is connected with one side of the locking pin shaft (63), the linkage pin shaft (71) and the sliding rod (72) are mutually abutted, the inside of the telescopic cavity (82) is of a sealed structure, and the inside of the telescopic cavity is filled with gas.

8. The test apparatus for a super linear speaker according to claim 5, wherein: bottom plate (9) are installed to one side of detection cavity (1) and closing member (2), detection cavity (1) and closing member (2) slidable mounting in one side of bottom plate (9), the surface mounting of bottom plate (9) one side has support frame (10), one side of support frame (10) is installed and is driven actuating cylinder (11), the slip end that drives actuating cylinder (11) with be perpendicular form between bottom plate (9), the fixed cover of slip end that drives actuating cylinder (11) has butt (12), butt (12) are connected with outside negative pressure air supply, and the surface of butt (12) one side has seted up the hole.

9. The test apparatus for a super linear speaker according to claim 2, wherein: it send frequently piece (111), links up frame (112) and controller (113) to detect the internally mounted of cavity (1), link up frame (112) with one side of fixed cavity (21) is installed mutually, send the inside that one side of frequently piece (111) runs through fixed cavity (21), send frequently piece (111) with controller (113) communication is connected, the internally mounted of fixed cavity (21) has the sensor, the sensor with controller (113) communication is connected, controller (113) and external display communication are connected, the both ends that detect cavity (1) inner chamber are fixed with joint spare (114) respectively, joint spare (114) are two-way cardboard column structure.

10. The test apparatus for a super linear speaker according to claim 8, wherein: the surface of the bottom plate (9) is provided with a jacking groove, a loudspeaker module (13) is arranged in the jacking groove, the loudspeaker module (13) is matched with the placing groove in the surface of the placing plate (3), the protecting sleeve (131) is matched with the placing groove in the surface of the placing plate (3), and two sides of the protecting sleeve are respectively abutted against two sides of the air distribution channel (85).

Images