11 results about "Noise isolation" patented technology

The utility model relates to a kind of guest room layer backwater circulating water pump noise isolation device, including base, enclosure and top plate, detachably connect between base top and the bottom of enclosure, between the top of enclosure and the bottom of top plate, the circulating water pump to be soundproof is stored in the sealed space formed by the enclosure of base, enclosure and top plate, the left and right sides of enclosure and the top of top plate are respectively provided with the through opening of the pipeline inlet and outlet for circulating water pump connection, detachably connected with sealing cover on through opening, the inside of base, enclosure, top plate and sealing cover is equipped with sound insulation layer;Base top is equipped with heat exchange component, heat exchange component is located in the sealed space formed by the enclosure of base, enclosure and top plate, base bottom is equipped with water storage tank, and water storage tank is communicated with heat exchange component.

This application relates to a noise isolation device and its arrangement method for a vehicle cab. The noise isolation device for a vehicle cab includes: a basic sound insulation layer assembly and a reinforcing sound insulation layer assembly; one side of the basic sound insulation layer assembly is attached to the vehicle cab's white frame; the reinforcing sound insulation layer assembly is attached to the basic sound insulation layer assembly on a side opposite to the vehicle cab's white frame, and the reinforcing sound insulation layer assembly is arranged in a predetermined area on the basic sound insulation layer assembly. This application arranges the reinforcing sound insulation layer assembly in a predetermined area on the basic sound insulation layer assembly, which allows for effective noise isolation under specific operating conditions by adjusting the arrangement of the reinforcing sound insulation layer assembly, while also avoiding waste of interior materials.

This invention relates to the field of voiceprint recognition technology, specifically disclosing a federated learning personalized audio monitoring method and system that combines voiceprint recognition. The method includes: extracting feature offsets and marking physiological function deterioration based on these offsets to obtain suspected fatigue segments; establishing a dual-track isolation architecture for read / write isolation by constructing purified fatigue features; collecting speech features for signal-to-noise isolation, verifying identity through core identity deviation and attenuation span, and issuing a degraded monitoring status; triggering federated local fine-tuning under degraded monitoring, and extracting pure upload gradients through an orthogonal projection matrix; and resetting the model by sending gradients to the server for aggregation and issuing low-level instructions to destroy the temporary feature pool after detecting physiological reset. The system includes: a fatigue marking module, an architecture construction module, an identity verification module, a gradient purification module, and a model reset module. This invention is beneficial for improving data purity and identity verification security under fatigue monitoring conditions.

This utility model relates to the field of noise control technology, and in particular to a transformer noise isolation device, comprising a housing, the housing being a square frame adapted to a transformer, an opening on the front side of the housing for inserting the transformer, and an internal cavity for storing the transformer inside the housing; it also includes a hinge, a soundproof door panel, and a locking assembly, etc. A soundproof door panel is hinged to one side of the front opening of the housing, and an inner groove adapted to the soundproof door panel is provided at the edge of the front opening of the housing. A locking assembly for locking the soundproof door panel is provided on the housing. This utility model, through the sound insulation layer inside the housing, the high-density multi-layer structure of the soundproof door panel, and the application of a rubber sheet, combined with a fastening component, ensures that the rubber sheet is pressed tightly when the soundproof door panel is closed, thereby minimizing noise leakage from the gap between the door panel and the housing, achieving the effect of isolating transformer noise within the housing.

This utility model discloses a noise isolation device for transmission pipelines, comprising: a first component including a first connecting part and a first fixing part; and a second component including a second connecting part and a second fixing part. The first connecting part and the second connecting part are rotatably connected so that the first component and the second component together form a receiving hole for fitting the transmission pipeline. The first fixing part and the second fixing part are detachably connected. The noise isolation device for transmission pipelines of this utility model can be easily assembled and disassembled.

The utility model discloses a honeycomb board with good sound absorption effect, including the outer layer, the outer layer includes first sound insulation layer, second sound insulation layer and third sound insulation layer, the back of first sound insulation layer with the front of second sound insulation layer fixed connection, the back of second sound insulation layer with the front of third sound insulation layer fixed connection, the inboard fixed connection of outer layer has honeycomb interlayer, the back fixed connection of honeycomb interlayer has the inner layer. The utility model discloses a first sound insulation layer, second sound insulation layer and third sound insulation layer's cooperation use can isolate the noise of outside, when the noise is too big and will penetrate first sound insulation layer, second sound insulation layer and third sound insulation layer and honeycomb interlayer contact, through honeycomb interlayer again to the noise isolation, and set up first sound absorption layer, second sound absorption layer and third sound absorption layer, through first sound absorption layer, second sound absorption layer and third sound absorption layer again to the noise isolation, improved sound absorption efficiency.

The utility model provides a low noise mower relates to mower technical field, the utility model discloses a shell is installed with gyro wheel in the bottom of shell, wherein gyro wheel places in ground can drive shell to remove, the motor is installed in the inside of shell by means of support, the motor is installed with cutting knife by means of speed reducer, wherein the motor can drive cutting knife to rotate and clean the lawn, the sound insulation device is set up at the top of shell by means of auxiliary device, wherein the sound insulation device can isolate the noise of motor vibration, the sound insulation device includes sound insulation cover, the sound insulation cover is installed at the top of shell by means of auxiliary device, the top of sound insulation cover is installed with exhaust pipe, wherein the inside fixed connection of exhaust pipe has a plurality of spoon shape's sound baffle, the utility model reaches the effect of weakening the sound of motor vibration by sound insulation device, avoids the noise of mower, thereby influences people's normal rest or work.

This utility model provides an integrated noise reduction and dust removal device for a pole rebar cage processing workshop, including a composite sound insulation panel and a dust collection box. The composite sound insulation panel consists of four vertically arranged panels with a movable structure at the bottom for easy movement. These four panels are placed around a rebar cage welding machine to form a soundproof wall, enclosing the machine in the center. A soundproof roof plate, also composed of composite sound insulation panels, covers the top of the soundproof wall. The dust collection box is connected to one of the composite sound insulation panels via a connecting pipe and is also connected to an air pump. The composite sound insulation panel is composed of a perforated plate layer, a sound-absorbing cotton layer, and a sound-insulating steel plate layer bonded together sequentially. This utility model can isolate and absorb most of the noise generated during rebar cage processing, thereby reducing noise pollution in the workshop. Simultaneously, dust is filtered into the dust collection box by the dust collection cloth, reducing the harm to workers' health caused by dust floating in the workshop.

The embodiment of the present application provides a voice box and an electric appliance, the voice box comprises a box body, a voice module and a sound attenuation structure, the box body is provided with a mounting portion, the mounting portion is used for cooperating and mounting between a matching portion on the electric appliance; the voice module is mounted on the box body; the sound attenuation structure comprises a plurality of sound attenuation portions arranged on the mounting portion, one end of the sound attenuation portion away from the mounting portion is a contact end, the contact end is used for contacting the matching portion on the electric appliance, and the contact ends of the plurality of sound attenuation portions are arranged at intervals, the embodiment of the present application effectively reduces the contact area between the voice box and the matching portion on the electric appliance, weakens the noise transmitted from the matching portion to the voice module, and thus improves the noise isolation effect on the voice module.