142results about How to "With damping effect" patented technology

The invention discloses a magneto-rheological pipeline dual-dynamic damping absorber. The mode of combining dynamic vibration absorption and damping dissipation energy vibration damping is adopted for controlling vibration of a pipeline. A magneto-rheological damper is adopted as a mass block and a leaf spring to form a first-order dynamic vibration damping structure, when the pipeline vibrates, the mass block and the leaf spring vibrate along with the pipeline and generate inertia reactive force, and vibration of the pipeline is lowered. A piston body, a spring, magneto-rheological fluid and a cylinder tube of the magneto-rheological damper form a second-order dynamic damping vibration damping structure. When the magneto-rheological damper vibrates along with the pipeline, the piston body compresses the piston to generate reactive force for the magneto-rheological damper under the inertia effect, and when the piston body and the cylinder tube move relatively, the piston body dissipates vibration energy under the damping force effect of the magneto-rheological fluid. The controller adjusts the damping force according to the vibration acceleration of the pipeline, and the energy dissipation efficiency of the damper is improved. One way, radial, axial and fixing frames can be flexibly assembled according to the pipeline vibration phenomenon, and vibration of the pipeline in any direction is controlled.

The invention relates to a multifunctional electric wheelchair, which mainly comprises a Z-shaped frame, a backrest, a cushion, front guide wheels, back driving wheels, a steering mechanism, a balance mechanism, a toilet mechanism and a backrest tipping mechanism. The backrest is arranged at the back end of the Z-shaped frame, the cushion is arranged on the upper end face of the Z-shaped frame, the front end of the Z-shaped frame is provided with the front guide wheels through a front axle and a front fork absorber assembly, the back end underside of the Z-shaped frame is provided with the back driving wheels through a back axle, the steering mechanism and the balance mechanism are arranged at the front end of a wheelchair body, the toilet mechanism is arranged at the underside of the cushion, and the backrest tipping mechanism is arranged at the underside of the Z-shaped frame. The multifunctional electric wheelchair has the advantages that the wheelchair can manipulate the motions of advancing, retreating, steering, braking, resting on the back, relieving and the like by a single hand, and can realize walking speed switch, music play and starting of a drawer type table so as to well solve life self-care problems of trip, resting, relieving, reading books and newspaper, dining and the like of the disabled.

The invention discloses a mechanical swivel joint seal device which comprises two moving rings, two stationery rings, two rubber gaskets and a spacer sleeve, wherein the moving rings are arranged at the outermost side, sealed with a shaft and fixedly connected with the shaft; the stationery rings are arranged at the inner sides of the moving rings and form seal friction pairs with the moving rings; the rubber gaskets are sleeved between the stationery rings and a shell, and inner circles of the rubber gaskets are in a 20 DEG taper fitting with outer circles of the stationery rings; the spacer sleeve is arranged between the two rubber gaskets, the cross section of the spacer sleeve is in the shape of a spring curve, the spacer sleeve has elasticity in the axial direction, and the outer diameter of the spacer sleeve is 0.1-0.2mm bigger than the inner diameter of the shell; an opening which is 2-3mm wide is arranged on the circumference of the spacer sleeve, so that the spacer sleeve keeps certain expansion force and is pressed against the shell after being sleeved in the shell; the end surface of the spacer sleeve is in contact with the inner end surfaces of the rubber gaskets, and the stationery rings are supported on an inner circle of the shell through the taper quioning action of the rubber gaskets under the elasticity action of the spacer sleeve and the pressure action of a seal medium. The mechanical swivel joint seal device has a simple structure, a small volume and a vibration damping effect due to the support of the rubber gaskets, stably runs and is suitable for high-speed running.

A nano-class damping emulsion paint is prepared from silisic prepane emulsion, polyurethane prepolymer, nano ZnO, nano TiO2, nano calcium carbonate, disperser, nano-class pigment, filming assistant, perfum and distilled water. Its advantages are high resistance to mildew, water, bacteria, yellowing and flush, smooth surface, both photocatalytic and nano-metal bacticiding effect, and better hydrophobicity and oleophobicity.

The invention provides a cement-based grouting material with a damping vibration attenuation function, comprising the following components according to the parts by weight: 25-60 of cement, 40-80 of sand, 0-20 of fly ash, 0.25-2.5 of water reducing agent, 0-10 of expanding agent and 10-50 of vibration attenuation granules. The invention has the advantages that: (1) the cement-based grouting material has the obvious damping vibration attenuation function, therefore, equipment vibration can be reduced after construction; (2) the damage on the grouting material and base concrete by the equipment vibration can be reduced; and (3) noise caused by the equipment vibration can be reduced.

The invention discloses a full-automatic pipe expanding machine and pipe expanding method. The machine comprises an automatic feeding and discharging device, a lifting clamping mechanism, an expandingmechanism and an axial alignment mechanism, and the mechanisms are in modular design. A slope face is arranged at the inner bottom of a hopper of the automatic feeding and discharging device, a material passing opening communicating with the lower end of the slope face is arranged on the side wall of the hopper, and shifting sheets capable of rotating up and down are arranged below the material passing opening. An elastic reset mechanism is arranged between the bottom faces of the shifting sheets and the outer side face of the bottom of the hopper. A rotating workbench is arranged below the shifting sheets, a rotating disc shaft is arranged on the rotating workbench, and the two ends of the rotating disc shaft are fixedly connected with rotating discs. In the process that the rotating disc shaft drives the rotating discs to rotate outwards, pipes falling onto clamp grooves of the rotating discs from the shifting sheets through self gravity can arrive at a feeding station, a machiningstation and a discharging station in sequence. According to the pipe expanding method, the full-automatic pipe expanding machine is adopted for expanding. The automation degree is improved, meanwhile,cost is reduced, the expanding quality is controlled more stably, and production efficiency is higher.

The invention discloses an anode component in an X-ray tube which solves the problems that the bearing of the anode component in the existing X-ray tube can not better adapt a high temperature change, leads the X-ray tube to generate noise and vibration during the working process and can not ensure the service life of relevant movable parts. The invention is structured in that the anode component in the X-ray tube comprises a hollow anode bar body, a connection shaft extending out of the outer side of the anode bar body as well as a ball bearing and an outer ring which are arranged at the outer side of the connection shaft; the bearing is arranged in the anode bar body; a connection flange is arranged on the extending end of the connection shaft; the invention is characterized in that the anode bar body is internally provided with a spring acted on the inner end of the connection shaft.

The invention discloses a pipe end face polishing device which comprises a shell. A pipe feeding opening is formed in the left end of the shell. The left portion of the upper end and the left portionof the lower end of the shell are provided with pipe sleeves, thread rods, control nuts, U-shaped supporting plates, horizontal supporting plates, supporting springs and wheel axles. A rotating shaftand a polishing wheel axle are arranged on the middle portion of the inner wall of the shell. The right portion of the lower side of the shell is provided with a motor. A transmission shaft is arranged at the output end of the motor. A transmission belt is arranged between the periphery of the transmission shaft and the rotating shaft. The upper wall of the shell is provided with a dust collectingcylinder. Ventilating fan vanes are arranged at the upper end of the periphery of the transmission shaft. The dust collecting cylinder is provided with an air output cover. The left wall of the shellis provided with an air injecting pipe. An air pump is arranged on the left side of the upper end of the shell. The pipe end face polishing device can be pushed into a pipeline stably and machine theend face flexibly, and meanwhile impurities and tail gas can be cleaned fast and synchronously.

The invention discloses a sliding sleeve spray nozzle for open hole fracturing. The sliding sleeve comprises a spray nozzle outer drum, a spray nozzle middle drum and a spray nozzle inner drum, which are sleeved together in sequence; external threads are formed at the outer peripheral surface of one end, far away from the spray nozzle middle drum, of the spray nozzle outer drum; the outer peripheral surface sleeved at one end of the spray nozzle middle drum is hexagonal to be conveniently mounted with a spanner; limiting structures for preventing the stripping from one another and sealing structures for preventing leaking are formed at the corresponding sleeving positions; the spray nozzle middle drum and the spray nozzle inner drum can be contracted into or extend out from the spray nozzle outer drum under the action of external force. The spray nozzle outer drum is mounted in the sliding sleeve and the length, extending out of a sliding sleeve, of the sliding sleeve spray nozzle is equal to the annular space gap between the sliding sleeve and a stratum. The sliding sleeve spray nozzle is good in fracturing point fixing property and can be prevented from accidentally extending when entering an open hole, the gap between the annular space and the sliding sleeve can be automatically adjusted and the sliding sleeve spray nozzle is prevented from being extruded back by a well wall due to shaking during construction.

A vibration and noise reduction structure of a highway tunnel includes tunnel segments and ballast beds, A first arc-shaped steel bar and a second arc-shaped steel bar are equally spaced between the ballast bed and the tunnel segment, A first arcuate steel bar is oriented opposite to a second arcuate steel bar, At that bottom of the tunnel segment, a steel pipe pile is penetrate between the adjacent first arc-shaped steel bar and the second arc-shaped steel bar, A dome form is arranged on the inner side of the tunnel segment, A metal mesh is arrange on that outer side wall of the dome form andthe inn wall of the tunnel segment, A lay of sound-absorbing material is sandwiched between that two metal mesh, the invention also discloses a construction method of the vibration and noise reduction structure of the highway tunnel, At that same time, the first arc-shape steel bar and the second arc-shaped steel bar have certain deformation performance and certain vibration damping effect, and the sound-absorbing material lay is arranged on the tunnel wall, so that the sound-absorbing effect is achieved, and the noise brought by echo is reduced.

The invention relates to sound insulating glass and a preparation method thereof, in particular to sound insulating PVB (polyvinyl butyral) laminated glass and a preparation method thereof. The sound insulating PVB laminated glass comprises a first glass substrate, a second glass substrate, a PVB film between the first glass substrate and the second glass substrate as well as polystyrene films located between the first glass substrate and the PVB film as well as between the second glass substrate and the PVB film, wherein the first glass substrate and the second glass substrate are arranged vertically. The preparation method of the sound insulating PVB laminated glass comprises the following steps: (1) cleaning of the glass substrate; (2) preparation of the polystyrene films; (3) combining operation: the PVB film is arranged in a combining chamber for combination of the glass substrates, the PVB film and the polystyrene films; (4) prepressing for exhausting; (5) high-pressure molding. The prepared PVB laminated glass has good mechanical property, impact resistance and good sound insulating effect, the PVB film cannot fall off the glass when the laminated glass meets external impact or the external environmental temperature changes acutely, and the service life is long.

The invention discloses a variable-rigidity vertical vibration isolation / seismic isolation support. The key points of design are that a pre-pressing spring is installed between a first horizontal plate and a second horizontal plate, a pre-stress tendon is further installed between the first horizontal plate and the second horizontal plate, and two anchors of the pre-stress tendon are anchored to the upper side of the first horizontal plate and the lower side of the second horizontal plate respectively; the pre-pressing spring is in a pre-pressing state by tensioning and anchoring the pre-stressed tendon; a third horizontal plate is arranged below the second horizontal plate, and a second spring is connected between the second horizontal plate and the third horizontal plate; a spring rigidity adjusting device is mounted between the first horizontal plate and the third horizontal plate; the spring rigidity adjusting device comprises a protruding part arranged on the side portion of a pressing rod, and the protruding part of the pressing rod is arranged in an adjusting cavity; under the action of a static vertical load G, the second spring provides supporting rigidity, the design requires that G is less than the pre-pulling force F of the pre-stressed tendon and is the initial state, and the second spring is in the initial state, the distance between the bottom of the pressing rodand the adjusting cavity is greater than or equal to (F-G) / K2.

The invention discloses a flat type single-arm robot based on transmission of synchronous pulleys and relates to the field of robots. The flat type single-arm robot comprises an SCARA mechanical arm.The SCARA mechanical arm comprises a front arm, a middle arm, a tail arm, a front arm transmission mechanism, a middle arm transmission mechanism and a tail arm transmission mechanism. The front arm,the middle arm and the tail arm are arranged sequentially from front to back. The front arm transmission mechanism is a one-level transmission mechanism, and an output shaft of a motor of the front arm transmission mechanism is connected with a rotary shaft of the front arm through one set of synchronous pulleys. The middle arm transmission mechanism is a two-level transmission mechanism, and an output shaft of a motor of the middle arm transmission mechanism is connected with a rotary shaft of the middle arm through sequential transmission of two sets of synchronous pulleys. The tail arm transmission mechanism is a three-level transmission mechanism, and an output shaft of a motor of the tail arm transmission mechanism is connected with the tail arm through sequential transmission of three sets of synchronous pulleys. The flat type single-arm robot has the advantages that the rotary angle of the mechanical arm is not limited, and the size of the mechanical arm is reduced.

The invention discloses a hydraulic type external thread cold rolling device which comprises a cantilever, hydraulic oil, a pressure gauge, a pin bolt, a fork shaft, a central spindle and an idler wheel. The idler wheel is installed in an outward opening groove of the fork shaft through the central spindle, an axial groove formed in the top of the middle section and the opening groove are coaxial, the other end of the fork shaft is a cylindrical shaft, and a sealing element is arranged outside an annular wall. The cantilever is a two-section conjoined constructional element, a cylindrical cylinder body is preposed, and a rearmounted rectangular long strip is a clamping section. The hydraulic oil is contained in the cylinder body, and the end, provided with the sealing element, of the fork shaft is inserted into the cylinder body to form the hydraulic oil cylinder. A radial hole is formed at the tail end of the cylinder body and communicated with the pressure gage, the pin bolt installed in the radial direction is arranged at the top of the outer wall of the cylinder body, and the screwed pin bolt is inserted into the axial groove in the outer wall of the middle section of the fork shaft to form a guiding structure. The hydraulic oil cylinder is used for supporting the idler wheel, in a cold rolling process, exerted force is displayed through the pressure gage, pressing quantification is beneficial to controlling of batch cold rolling under same quantity value conditions, and uniform and stable quality of the cold rolling is ensured.

The invention relates to a refrigerator and an image pickup device for the refrigerator. The image pickup device is arranged in a storage space of the refrigerator and comprises a base provided with an installing wall and a camera, wherein the installing wall is provided with an installing hole, the camera comprises a camera body for shooting the storage space and a connecting column, one end of the connecting column is connected with the camera body, the other end of the connecting column is provided with a flange, and the flange is clamped on the inner side of the installing hole in a connected mode to allow the camera to rotate with respect to the base. In addition, the invention further provides a refrigerator provided with the image pickup device. The image pickup device can rotate, an image pickup angle of the image pickup device is increased, the image pickup device has a damping effect in rotation, shakes are decreased, and the operation feeling is improved.

The invention provides a magnesium alloy pumice ferric oxide cobalt composite material and a preparation method thereof. The composite material has high absorbing properties and excellent damping performance. The method of the invention has simple process and low production cost, and is suitable for industrialized production. The composite material takes magnesium alloy as a matrix; pumice ferric oxide cobalt composite material and dolomite granule are distributed on the matrix; the volume percent of the pumice ferric oxide cobalt composite material and the dolomite granule accounts for 40-45% of the composite material; the size of the composite granule is 0.5-1mm; and the magnesium alloy base body comprises the following chemical composition by weight percent: 4-8% of Al, 0.01-0.05% of Th, 0.5-1% of Si, 0.001-0.005% of Bi and the balance of Mg.

The invention relates to the technical field of monitoring equipment, and discloses intelligent security and protection monitoring equipment. A camera body is included and arranged in an installing shell. The installing shell comprises a bottom plate. The bottom plate is provided with two vertical plates in parallel. A clamping mechanism for installing the camera body is arranged between the two vertical plates. An arc protection plate is arranged above the two vertical plates. The positions, located at the front end and the rear end, of the upper end face of each vertical plate are provided with lifting cavities with upward openings. The lifting cavities are internally provided with lifting rods through first springs, wherein one ends of the lifting rods stretch out of the lifting cavities and are connected with the protection plate. Through the arrangement of the above structure, when rain and snow, hail and the like impact on the protection plate, the first springs can conduct buffering protection on the protection plate, the protection plate has a buffering effect, accordingly, the camera body arranged in the shell is well protected, and the service life of the camera body is prolonged.

The invention discloses an ultrasonic transducer with a vibration reduction function. The ultrasonic transducer with the vibration reduction function comprises a front cover plate and a rear cover plate. A plurality of ceramic wafers and electrodes are arranged between the front cover plate and the rear cover plate in a spaced mode. The ultrasonic transducer with the vibration reduction function is characterized in that a double-groove structure is arranged at the joint of the front cover plate and comprises an inner groove and an outer groove; the inner groove is a blind groove, the outer groove is also a blind groove, the inner groove and the outer groove are open in opposite directions, and a vibration reduction wall is arranged between the inner groove and the outer groove; and threads are arranged outside the double-groove structure. According to the ultrasonic transducer with the vibration reduction function, the thicknesses of the bottoms of the inner groove and the outer groove in the joint are smaller than 1 mm, and thus vibration is weak; the vibration reduction wall between the outer groove and the inner groove of a flange has the vibration reduction function and can eliminate vibration on the joint, errors caused by vibration are avoided, and equipment precision is improved; and the ultrasonic transducer is connected with an external component through the threads outside the flange, the situation that damage is caused due to pressure when a rubber ring is used, and consequentially up-down or left-right errors are caused is avoided, and equipment precision is improved.

A movable support with the seismic isolation and reduction functions comprises an upper supporting board, a base, a first supporting assembly and a second supporting assembly, wherein the first supporting assembly and the second supporting assembly are arranged between the upper supporting board and the base. The first supporting assembly comprises a metal damper, sliding blocks and a speed governor; the upper end of the metal damper is fixed to the upper supporting board; the sliding blocks are installed on sliding rails of the base and can slide along the sliding rails in a reciprocating mode; the lower end of the metal damper is rotationally and movably connected with the sliding blocks; the sliding blocks can drive the metal damper to slide along the sliding rails; the speed governor is arranged between the base and the sliding blocks and used for generating a damping action on the sliding of the sliding blocks along the sliding rails, so that the sliding blocks only slides along the sliding rails slowly. The second supporting assembly is movably supported between the upper supporting board and the base, and plane sliding, curved face sliding and / or rotation between the upper supporting board and the base are provided. The damping function is generated when relative acceleration motion occurs between a structure and a foundation, the relative movement distance can be controlled, the size is small, the structure is simple, and the movable support can be used in the fields such as seismic isolation and reduction of statically indeterminate structure bridges.

The invention provides a magnesium alloy diatomite ferric oxide composite material and a preparation method thereof. The composite material has high microwave-absorbing performance and excellent damping performance. The preparation method has simple process and low production cost and is suitable for industrialized production. The composite material takes a magnesium alloy as a substrate, a diatomite ferric oxide compound is distributed on the substrate, the diatomite ferric oxide compound is 40-45 percent by volume of the composite material, and grainsize of each diatomite ferric oxide compound particle is 0.5-1mm; the magnesium alloy substrate is prepared from the following chemical components in percentage by weight: 3-8 percent of Al, 0.01-0.05 percent of Th, 0.5-1 percent of Si, 0.005-0.01 percent of Sb and the balance of Mg; and the diatomite ferric oxide compound is formed by filling ferric oxide in gaps of diatomite, and a film is formed on each gap wall surface.

The invention discloses a multi-layer amorphous alloy structure and a weaving method thereof for protection equipment. The multi-layer amorphous alloy structure is formed by bonding amorphous strips with a high-molecular polymer such as rubber or ETBN toughened epoxy resin. As an amorphous alloy layer is used, the multi-layer amorphous alloy structure has the characteristics of high strength and high elasticity, and the defensive penetration capability is improved; as a high-molecular polymer layer is used, the multi-layer amorphous alloy structure has the characteristics of low density, goodviscoelasticity and the like and has certain energy-absorbing and damping effects, and the plasticity of an overall structure is improved; the multi-layer structure has the characteristics of lightness and good toughness; as the soft and hard alternating, up and down interlaced weaving and multi-layer structure designs are adopted, the energy-absorbing effect can be further improved, and the defensive non-penetration damage ability is improved. The multi-layer amorphous alloy structure simultaneously has triple functions of lightness, softness and safe defense, is high in maneuverability, simple in process and low in cost and has wide application range and good application prospect.

The invention relates to the field of technologies for forming and processing materials, in particular to an indoor wall decorating plate with an air purifying function. The indoor wall decorating plate with the air purifying function is characterized by comprising a PVC (polyvinyl chloride) supporting bottom plate, an air purifying and adsorbing layer and a surface finishing layer; the PVC supporting bottom plate, the air purifying and adsorbing layer and the surface finishing layer are arranged from the inside to the outside; the PVC supporting bottom plate and the air purifying and adsorbing layer are subjected to co-extrusion to form sheets, then the surface finishing layer clings to the surface of the air purifying and adsorbing layer, and the surface finishing layer and the sheets are simultaneously subjected to one-step calendering molding by the aid of a calendering molding machine. The indoor wall decorating plate with the air purifying function has the advantages that the indoor wall decorating plate prepared by the aid of methods can be subjected to one-step extrusion molding by the aid of double-layer co-extrusion processes implemented by a screw extruder during preparation, the processes for preparing the indoor wall decorating plate are simple, and the indoor wall decorating plate can be continuously produced and is high in production efficiency; effects of adsorbing harmful gas, isolating sound and reducing vibration can be realized by the indoor wall decorating plate.

The invention relates to the technical field of torque limiters, and particularly relates to a torque limiter with a unidirectional slide function. The torque limiter with the unidirectional slide function comprises an input sleeve, an input shaft and a connection flange, wherein the input shaft is slidably arranged at one end of the connection flange in the axial direction of the input shaft; a first limit mechanism used for limiting radial displacement of the connection flange is arranged on the input shaft; first springs are arranged in the connection flange and between the connection flange and the input shaft; and the input sleeve is located between the input shaft and the connection flange. The torque limiter with the unidirectional slide function only limits a torsion force transferred by a transmission system in one direction in a manner of slide during use, and automatically recovers connection after a case of overload disappears. The torque limiter with the unidirectional slide function can be used for weakening a reverse impact existing in the transmission system to play a role of protecting a fan gearbox and other equipment, and has an effect of shock absorption or damping.

The invention discloses a flame-retardant rubber toughened nylon corrugated-pipe material used for rail transit and a preparation method thereof. The flame-retardant rubber toughened nylon corrugated-pipe material comprises the following raw materials in percentages by weight: 65 to 80% of nylon resin, 5 to 10% of toughening rubber, 10 to 20% of flame retardant loaded polymer vesicles, 1 to 2% ofstearic acid, 0.1 to 0.5% of an anti-oxidant, 1 to 5% of an inorganic filling material and 0.1 to 0.5% of a vulcanizing agent PDM.

The invention discloses a submarine pipeline capable of restraining vortex-induced vibration. The submarine pipeline is formed in the mode that the cross section of the lower end of a pipeline body is pulled upwards in a spiral mode through the center axis in the axial direction, the outer boundary of the cross section of the lower end is formed by end-to-end connection of six 60-degree arcs in the tangential direction, the six 60-degree arcs are the arc a, the arc b, the arc c, the arc d, the arc e and the arc f in sequence in the clockwise rotation direction, the line connecting the circle center O1 of the arc a with the central point O of the lower cross section, the line connecting the circle center O2 of the arc c with the central point O of the lower cross section, and the line connecting the circle center O3 of the arc e with the central point O of the lower cross section are in the same length, and the included angles between the three lines are 120 degrees; a circle with a radius of R=O1O2+O1A is made to be tangent to the circle O2 and the circle O3, O1A is the radius of the arc a, the arc between tangent points is the arc d, and O2 serves as the circle center; a circle with a radius R is made to be tangent to the circle O1 and the circle O3, and the arc between tangent points is the arc f; a circle with a radius R and O3 serving as the circle center is made to be tangent to the circle O1 and the circle O2, and the arc between tangent points is the arc b. The submarine pipeline capable of restraining vortex-induced vibration is insensitive to incoming flow direction and excellent in flow-resistant strength and vibration restraining performance.

The invention discloses a prefabricated wall structure. The prefabricated wall structure comprises a wall, wherein the wall is arranged between the building ground and a building ceiling, the end of the wall in the length direction extends to a built structural body which is crossed with the wall, the wall comprises one or a plurality of unit modules which are arranged in the length direction of the wall as well as a first elastic support seat and a second elastic support seat which have elasticity, and the wall is configured so as to be in sliding connection with the building ground and the building ceiling in the length direction of the wall; a first adjusting gap is formed between the wall and the built structural body, and the first elastic support seat is clamped between the wall and the built structural body; and a second adjusting gap is formed between the wall and the building ceiling, and the second elastic support seat is clamped between the wall and the building ceiling. The prefabricated wall structure provided by the invention relates to the field of buildings, internal stress of the wall can be eliminated, the wall is prevented from generating cracks, additionally, the vibration of the wall can be eliminated, a vibration reduction effect is achieved, and the wall is prevented from being damaged due to vibration.

The invention relates to a circuit device having at least one circuit carrier package cover, especially a gearbox controller. The circuit device (10, 30, 40, 50, 70), especially the gearbox controller has at least one cover (18, 52) for encapsulating a circuit carrier (12) in which several electrical and electronic components (14) are mounted. An absorber, formed by oil-combined loose materials or forming bodies (76, 78) having several different space geometrical shapes is sealed in inner space (16) for absorbing the penetrated oil from outside. With the absorber, sensitive component (14) will not be wet by oil.