61 results about "Passive radiator" patented technology

An incubator can include a body, a bed supported by the body, and a canopy defining an interior chamber that includes the bed. The incubator can include any combination of various features configured to reduce sound energy inside the incubator. The incubator can include a passive radiator, a Helmholtz resonator, a meta material absorber, an active noise cancelation system, a vented door latch assembly, an acoustically permeable seal, a pressure relief valve, a lift mechanism that uses a belt drive, double paned canopy walls, a bin with insulating compliant elements, a manual pressure release valve, a pressure differential notification system, non-parallel or curved canopy walls, a mattress with reticulated foam, and / or an acoustic filter.

This article is a speaker with a lighting function. Generally, as shown in the "Reference Perspective View Showing the Usage State" and the "Reference A-A Cross-Sectional View with the Internal Mechanism Showing the Transparent Part Omitted", it is composed of a base part, a transparent member installed on the upper part of the base part, and an LED storage part provided between the base part and the transparent member. In use, as shown in (1) of the "Reference Perspective View Showing the Usage State", when a glass-type transparent member is adopted, the attached lid can be placed over the opening at the upper part of the transparent member to prevent dust from entering, or as shown in (2) of the "Reference Perspective View Showing the Usage State", the lid can be installed at the bottom of this article to prevent displacement. As for the specific configuration of this article, referring to the "Reference A-A Cross-Sectional View with the Internal Mechanism Showing the Transparent Part Omitted", the speaker is installed upward in the middle of the base part in the vertical direction. A diffuser for spreading sound evenly throughout the room is provided above the speaker, and slits are provided in its outer peripheral direction. Also, a passive radiator is provided below the speaker, that is, at the bottom of the base part.

A high-performance and flexible loudspeaker apparatus usable in various scenes. A first unit includes a loudspeaker therein, a second unit is connected to a lower portion of the first unit, the first unit comprises the loudspeaker provided in a housing of the first unit so as to output a sound toward an upper portion of the housing and a passive radiator provided on a rear surface side of the loudspeaker in the housing, and an output port of the passive radiator is opposed to an inclined surface which is provided at an upper portion of the second unit and whose distance from the output port of the passive radiator increases toward a radially outer side of the housing.

The invention discloses a passive radiator and a sound box, and relates to the technical field of acoustics, the passive radiator comprises a diaphragm, a first damper, a second damper and a counterweight, the counterweight is connected with the first damper and the second damper, the distance between the first damper and the second damper is a first distance, and the distance between the second damper and the diaphragm is a second distance. The distance between the first damper or the second damper and the vibrating diaphragm is a second distance; the ratio of the first distance to the length of the diaphragm is greater than or equal to a first preset threshold value, and / or the ratio of the second distance to the length of the diaphragm is greater than or equal to a second preset threshold value; wherein the polarization frequencies corresponding to the first preset threshold value and the second preset threshold value are both greater than a preset resonant frequency, and the preset resonant frequency is the resonant frequency of a loudspeaker cooperatively working with the passive radiator. According to the invention, the polarization frequency of the passive radiator is increased, so that the phenomenon that the passive radiator is induced to be polarized while the resonance of the loudspeaker is avoided or reduced.

The application discloses a method for changing the structure form of a sound box and the sound box, and relates to the technical field of sound boxes. The method comprises the following steps: a wind pipe or a passive radiator is arranged in the rear cavity of the sound box; an opening is formed on the sound box corresponding to the rear cavity, so that the wind pipe or the passive radiator can communicate with the outside through the opening; two sets of tuning parameters are configured for the sound box, the first set of tuning parameters is suitable for a sealed sound box, and the second set of tuning parameters is suitable for a wind pipe sound box or a sound box with a passive radiator; the sealing state of the opening is detected, and the first set of tuning parameters or the second set of tuning parameters is automatically called according to the sealing state. The application changes the sealing state of the opening of the rear cavity of the sound box to switch the structure form of the sound box, calls the corresponding tuning parameters according to the different structure forms of the sound box, and thus different sound effects of the sound box can be generated to adapt to the presentation requirements of different styles of music, thereby optimizing the appreciation experience of users and expanding the application scenarios of a single sound box product.

The utility model discloses a high-performance loudspeaker, which relates to the technical field of loudspeakers, comprises a loudspeaker box, and a voice coil, a magnetic group and a membrane group which are arranged in the loudspeaker box, and is characterized in that an accommodating space is arranged in the magnetic group, the accommodating space is communicated with the external space of the loudspeaker box, a passive radiator is arranged in the accommodating space, and the membrane group is communicated with the passive radiator. The passive radiator comprises a passive radiation mass block and a passive radiation vibrating diaphragm arranged on the periphery of the passive radiation mass block, and the passive radiation vibrating diaphragm is connected with the magnetic group. According to the utility model, through the structure of the magnetic circuit and the passive radiator, the performance of the loudspeaker is improved, and under the condition of the same rear cavity space, the loudspeaker has lower resonant frequency, better low-frequency response and larger sound radiation area, and can provide more loud sound.

A passive radiator with adjustable working frequency, which includes a chassis, a vibrating plate movably coupled to the chassis by a suspension component, and an added weight device arranged outside the vibrating plate. The added weight device is replaceable to adjust the working frequency of the passive radiator.

An embodiment of the present application discloses a speaker with a support function, which relates to the technical field of speakers. A speaker with a support function includes: a first housing, a magnet, a second housing, a PCBA board, a passive radiator, a speaker, and a grille; the magnet is attached to the inner wall of the first housing; the second housing is installed in the first housing; the PCBA board and the passive radiator are arranged in the second housing; the speaker is installed and covers the end of the second housing; the grille is fixed to the end of the first housing and is opposite to the sound emitting end of the speaker. The speaker with a support function according to the embodiment of the present application, by reasonably setting its speaker structure and installing a magnet inside to provide magnetic suction for fixing an electronic device, enables it to be both a speaker of the electronic device and a support base of the electronic device, realizing flexible placement when using an external speaker for the electronic device.

The utility model provides a sound box, which comprises a shell, a loudspeaker, a passive basin and a top plate, the loudspeaker and the passive basin are arranged in the shell, the loudspeaker is arranged at the upper part, and the passive basin is arranged at the lower part; the top plate is fixed to the upper end of the shell, a gap is formed between the top plate and the shell, and the sound emitting direction of the loudspeaker faces the top plate. The utility model provides a sound box. According to the loudspeaker box, certain size adjustment can be adaptively performed, a better sound expression effect and a better bass effect can be achieved, and the loudspeaker box can be matched with the top plate, so that the sound transmission range can be expanded, and the overall use experience of the loudspeaker box is improved.

A speaker protection system includes: a speaker having a driver and a passive radiator or vent; and a controller determining at least one of a displacement of the driver, a displacement of the passive radiator, and a velocity of airflow through the vent based on an input voltage representative of an audible sound, and determine an output voltage at which the speaker reproduces the audible sound based on a single type of compression applied to both the driver displacement and the passive radiator displacement or the vent airflow velocity. An output voltage provided to the speaker limits the driver displacement within a driver displacement range and simultaneously limits the passive radiator displacement within a passive radiator displacement range or the vent airflow velocity within an airflow velocity range to mechanically protect the speaker and reduce distortion of the reproduced audible sound.

The utility model discloses a small volume sound equipment for improving sound quality, relates to the sound equipment technology field, and comprises a front shell, a rear cover, an independent horn cavity, a full frequency horn and a low frequency passive radiator, the independent horn cavity is arranged in the front shell, the full frequency horn is arranged in a preformed hole of the independent horn cavity, and the low frequency passive radiator is arranged in the independent horn cavity. And the low-frequency passive radiator is arranged in a preformed groove of the independent horn cavity. According to the small-size sound box, the full-frequency loudspeaker and the low-frequency passive radiator are elaborately arranged, and the independent cavity technology is combined, so that the problems of poor sound effect and insufficient bass of the small-size sound box are effectively solved. Meanwhile, due to the design of the independent cavity, the low-frequency effect is ensured, meanwhile, the cleanliness and purity of sound are ensured, and more excellent auditory experience is brought to a user.

Loudspeaker enclosures that support improved acoustic radiation efficiency at low audible frequencies without compromising acoustic radiation efficiency at mid and high audible frequencies. Embodiments include enclosures having a primary chamber and a secondary chamber acoustically coupled to the primary chamber via a passive radiator. The geometrical characteristics of the secondary chamber and the corresponding air plenum are tailored for enhanced efficiency at low frequencies.

A passive radiator for an audio playback device includes a frame and a membrane coupled to the frame such that the membrane can move axially relative to the frame. A first magnetic component is coupled to the membrane and configured to move axially along with the membrane. A second magnetic component is radially spaced apart from the first magnetic component and configured such that, as the first magnetic component moves axially, a magnetic interaction between the first magnetic component and the second magnetic component amplifies axial movement of the membrane.

A vehicle includes a housing, a passive radiator disposed on a rear surface of the housing, an active speaker disposed on a front surface of the housing and configured to output a virtual engine sound, a partition wall disposed inside the housing such that one side is in contact with a left side surface of the housing and the other side is in contact with a right side surface of the housing, a driver configured to move and rotate the partition wall, and a controller configured to control the driver based on at least one of a transmission gear of the vehicle and a vehicle speed.

The utility model relates to the technical field of sound boxes, in particular to a passive radiator and a sound box, the passive radiator comprises a support, a vibrating diaphragm is hermetically arranged on the support, a counterweight is arranged on the outer wall, facing a user, of the vibrating diaphragm, and the counterweight can be separated from and detached from the vibrating diaphragm. According to the utility model, the counterweight piece in the passive radiator can be replaced so as to better adapt to different types of music and obtain better sound effect.

The utility model relates to the technical field of sound boxes, in particular to an integrated piece of a battery and a passive radiator and a sound box provided with the integrated piece, the integrated piece comprises a main body, the main body is provided with a power supply structure and a passive radiation structure, the power supply structure is used for supplying power to a loudspeaker of the sound box, and the passive radiation structure is used for radiating the passive radiation structure. The passive radiation structure is used for enhancing the low-frequency effect of the sound box. According to the utility model, the integrated part integrates the functions of the battery and the passive radiator at the same time, so that a gap and a distance between the battery and the passive radiator do not need to be reserved in the sound box, and the thickness of the sound box can be further reduced.

To provide a vibration structure capable of suppressing stress concentration in an elastic portion that deforms in accordance with vibration of a vibration mass.SOLUTION: A vibration structure 1 includes a vibration mass 10, a support portion 20, and an elastic portion 30. The vibration mass 10 is a plate-shaped portion. The support portion 20 is a portion having a space 21 capable of accommodating the vibration mass 10. The elastic portion 30 is an elastically deformable portion that connects the vibration mass 10 to the support portion 20. The elastic portion 30 extends along an outer periphery 13 of the vibration mass 10, and supports the vibration mass 10 such that the vibration mass 10 can vibrate in the direction in which the front surface 11 and the back surface 12 of the vibration mass 10 face relative to the support portion 20. The vibration mass 10 has a plurality of corners 14 on the outer periphery 13. The height H of the plurality of corners 31 of the elastic portion 30 located at the plurality of corners 14 of the vibration mass 10 is higher than the height of the sides 32, 33 of the elastic portion 30. The height H is the distance in the direction in which the front surface 11 and the back surface 12 face.SELECTED DRAWING: Figure 1

This application provides an audio speaker, relating to the field of acoustic equipment technology. The speaker includes: a cabinet; a loudspeaker connected to the cabinet; a partition disposed inside the cabinet, dividing the space within the cabinet into a main cavity and a secondary cavity, with the loudspeaker opposite the main cavity; multiple passive radiators, each disposed on an opposing surface of the cabinet and the partition; a linkage connecting the multiple passive radiators, used to actuate the multiple passive radiators; and a perforated component disposed within at least one of the main cavity and the secondary cavity. This speaker can reduce the resonant frequency of the acoustic system, while absorbing standing waves and excess reflected sound energy, reducing acoustic interference and nonlinear distortion, and preventing noticeable bass trailing and muddiness.

The utility model relates to a sound equipment light guide base, which belongs to the technical field of sound equipment bases, and comprises a light guide base, a passive radiator and a lamp panel are arranged in the light guide base, the light guide base comprises a base, a bonding platform is arranged above the base, a plurality of light guide columns are uniformly arranged on the bonding platform along the circumferential direction, and the passive radiator comprises a folding ring and a circumferential ring. The periphery is arranged on the periphery of the folding ring, a plurality of through holes are evenly formed in the periphery in the circumferential direction, the periphery is bonded with the bonding platform, and the light guide columns correspond to the through holes in a one-to-one mode. Coexistence of the passive radiator and the light guide base is achieved, light can be guided, and the bass effect of the sound box is improved.

A vibration structure (1) is provided with a vibration mass (10), a support part (20), and an elastic part (30). The vibration mass (10) is a plate-shaped portion. The support part (20) is a portion having a space (21) capable of accommodating the vibration mass (10). The elastic part (30) is an elastically deformable portion that connects the vibration mass (10) to the support part (20). The elastic part (30) extends along an outer peripheral edge (13) of the vibration mass (10), and supports the vibration mass (10) such that the vibration mass can vibrate in a direction in which the front surface (11) and the back surface (12) of the vibration mass (10) face the support part (20). The vibration mass (10) has a plurality of corners (14) on the outer peripheral edge (13). The width (W) of a plurality of corners (31) of the elastic part (30) respectively located at the plurality of corners (14) of the vibration mass (10) is wider than the width (w) of sides (32, 33) of the elastic part (30). The widths (W, w) are each distances in directions in which the front surface (11) and the back surface (12) extend.

The utility model relates to a sound box technical field especially, it relates to a sound box, including casing, speaker and passive radiation subassembly, be equipped with the installation cavity in the casing, be equipped with the first through -hole of communication with the installation cavity on the casing, speaker is worn and is equipped in the first through -hole, passive radiation subassembly includes passive radiator and exhaust piece, exhaust piece includes installation part and at least one exhaust pipe, installation part is equipped with the exhaust chamber in, exhaust chamber is equipped with the opening towards speaker, passive radiator includes diaphragm, folded ring and support, diaphragm and speaker are arranged along the first direction interval, folded ring sets up around diaphragm, support sets up around folded ring, folded ring is connected in diaphragm and support, support links to each other with the indoor wall of exhaust chamber, one end of exhaust pipe links to installation part, the other end of exhaust pipe is equipped with the exhaust port of the outer surface of casing exposed, the total area of all exhaust port is consistent with the area of diaphragm of passive radiator. It is convenient for design and manufacture.

Example techniques may involve controlling a passive radiator. An implementation may include a device receiving, via a network interface, audio content and generating an audio signal representing the audio content. Generating the audio signal involves modifying portions of the audio content to limit excursion of the speaker driver to less than an excursion limit when a forward prediction model indicates that the portions of the audio content are predicted to cause the speaker driver to move beyond the excursion limit. While playing back the generated audio signal via the audio stage, the device detects, via a sensor, clipping of the speaker driver and generates a feedback signal based on the detected clipping of the speaker driver. The device adjusts the forward prediction model based on the generated feedback signal.

The present invention relates to a multi-passive radiator speaker, including a box body, which is in an oblate shape. The upper shell and the lower shell of the box body are joined together along the long axis direction to form a plurality of speaker mounting holes. A plurality of speaker units are respectively installed in the plurality of speaker mounting holes. On the sides of the plurality of speaker units near the short sides of the box body, the upper shell is provided with a plurality of radiator mounting holes, and the lower shell is also provided with a plurality of radiator mounting holes. The radiator mounting holes of the upper shell and the lower shell are both arranged in a mirror-symmetrical manner along the long axis direction of the box body, and a passive radiator is arranged in each radiator mounting hole. The sound radiation direction of the plurality of speaker units is toward the front of the box body; the sound radiation direction of the passive radiator is toward the two sides of the box body. The structure of the present invention is ingenious, compact and reasonable. With a small volume and a thin structure, the three sides of the box body can radiate sound synchronously, and the acoustic characteristics of the speaker body with low distortion and high power tolerance can be achieved.

The invention provides a sound box and electronic equipment. The sound box comprises a box body, the box body comprises a box wall and a protruding part, a sound cavity is defined by the box wall, the protruding part is connected to the side, facing the sound cavity, of the box wall, the protruding part is arranged inwards in a protruding mode from the side, facing the sound cavity, of the box wall, and the protruding part is arranged in a protruding mode in the first direction; the first passive radiator is fixed on the box wall, and the first passive radiator vibrates along a second direction; wherein the first direction intersects with the second direction. The sound box aims at solving the problems of the existing sound box in the aspects of sound quality, structural strength, stability and the like.

Various aspects of the present disclosure are directed to a subwoofer housing that may be installed within a motorcycle storage container (also known as a saddlebag). The subwoofer housing may include a subwoofer transducer which when used in conjunction with full range audio transducers within the motorcycle audio system introduces dynamic low frequency harmonics into the overall frequency response. In some embodiments of the present disclosure, the subwoofer housing may include an active subwoofer transducer, and a passive radiator transducer, both with downward orientations. The saddlebag including a floor, and one or more air vents in the floor. Sound waves emitted from the active subwoofer transducer and the passive radiator transducer travel through the one or more air vents and reflect in an omni-directional pattern from a road surface to generate greater audible levels of the low frequency sound waves.

The utility model belongs to the technical field of radiators, and particularly relates to a multi-heat-pipe heat conduction passive radiator. A heat-conducting sheet is arranged in the bottom plate, and the heat-conducting sheet is made of a copper metal material; the main heat dissipation assembly is arranged at the top of the bottom plate, and the main heat dissipation assembly is connected with the heat conduction pieces and used for guiding the dissipation of the auxiliary heat; the auxiliary heat dissipation assembly is arranged on one side of the main heat dissipation assembly and used for assisting the main heat dissipation assembly in matched auxiliary heat dissipation. According to the radiator, the main heat dissipation assembly and the auxiliary heat dissipation assembly adopt the multi-heat-pipe design, the heat transfer capacity is remarkably improved, particularly, the heat conduction oil filled in the main heat pipes and the auxiliary heat pipes can keep good heat dissipation performance under the high-load condition, meanwhile, the main heat dissipation fins and the auxiliary heat dissipation fins are distributed at equal intervals, the heat dissipation area is increased, and the heat dissipation efficiency is improved. And the air convection heat dissipation efficiency is effectively improved.

The present invention discloses a passive radiator and a sound-generating device, wherein the passive radiator comprises a frame, a diaphragm, a folding ring and a damping assembly, wherein the frame is formed with an opening; the diaphragm is arranged in the opening; the inner side of the folding ring is connected to the diaphragm, and the outer side is connected to the edge of the opening; the damping assembly comprises a first damping member and a second damping member connected to each other, wherein the first damping member is arranged on the surface of the diaphragm, and the second damping member is arranged on the surface of the folding ring, and the first damping member is arranged centrally symmetrically on the surface of the diaphragm, the first damping member is an elastic material, and the second damping member is a flexible material. The passive radiator of the present invention can increase the low-frequency vibration frequency and increase the radiation amount without distortion.

The utility model discloses drum-shaped interactive sound equipment, which comprises a drum body, a first loudspeaker, a second loudspeaker, an acceleration sensor, a power supply, a power amplifier and a master controller, and at least one drum surface of the drum body is a passive radiator. The acceleration sensors are connected with the passive radiator and are distributed in an array; the first loudspeaker, the second loudspeaker, the acceleration sensor, the power supply and the power amplifier are electrically connected with the main controller; the first loudspeaker is a full-frequency loudspeaker or a high-frequency loudspeaker, and the second loudspeaker is a low-frequency loudspeaker; the master controller controls the first loudspeaker and the second loudspeaker to play corresponding drum sound audios according to the passive radiator hit motion information collected by the acceleration sensor. The first loudspeaker and the second loudspeaker are both arranged in an inner cavity of the drum body, and the drum body is provided with sound emitting avoiding parts corresponding to the first loudspeaker and the second loudspeaker. The acceleration sensor, the power supply, the power amplifier and the main controller are all arranged in an inner cavity of the drum body.

The present application discloses a low-frequency enhancement design method, storage medium and device for an irregular sound cavity. The low-frequency enhancement design method for an irregular sound cavity of the present application processes the initial angle relationship and initial assembly data of each assembly surface of the passive radiator by establishing a model to obtain the final angle relationship and final area data of different assembly surfaces, obtains the assembly quality data of the passive radiator according to the final angle relationship and final area data, selects the specifications of the multiple passive radiators according to the final angle relationship, final area data and assembly quality data of the passive radiator, and then adjusts the selection specifications of the passive radiator according to whether the resonant frequency of the irregular sound cavity meets the requirements. The present application can minimize the low-frequency jitter of the cavity without losing the volume of the sound cavity, and can simultaneously meet the needs of improving the low-frequency sound quality and preventing the vibration of the whole machine. The design idea is simple and efficient.

The present invention belongs to the technical field of speakers, and aims to provide a smart speaker, including a main shell, a microphone structure, two passive radiators and at least two speakers. Among them, the main shell is a columnar structure, the cross section is a shape that gradually decreases from the first side to the second side, and has a transverse cavity; the microphone structure is arranged in an array-type voice recognition structure through at least two microphone monomers arranged on the main shell; the two passive radiators are respectively adapted to be installed on the ends of the main shell to seal the cavity and their vibration plates are arranged in an "eight" shape; one end of the speaker is sealed and installed in the corresponding installation hole, and the other end is accommodated in the cavity, so that the main shell, the dual passive radiators and the multiple speakers together form a closed sound cavity. The smart speaker in the present invention has a simple and compact structure, has a super subwoofer sound effect in a limited sound cavity volume, can clearly pick up the audio signal of the sound source during voice interaction, and has a good user experience.