1084results about How to "Simple transmission structure" patented technology

The invention discloses a liquid supply vehicle, which comprises a frame with a cab. The lower part of the frame is provided with wheels, the rear upper part of the frame is provided with a bedplate, a power driving device is arranged on the bedplate, a centrifugal pump is arranged below the bedplate, the power driving device is in transmission connection with the centrifugal pump, and an inlet and an outlet of the centrifugal pump are connected with a suction pipe and a discharge pipe respectively. The liquid supply vehicle has the advantages of improving the self-sucking effect of a fracturing truck, improving the operation efficiency of the fracturing truck and shortening the operation time, along with reasonable design, simple structure, easy assembly and manufacture, and also can be used for liquid delivery in other industries of flood drainage, sewage clearing and the like.

The invention discloses a mahjong machine, a mahjong tile jacking component and a method for settling mahjong tiles. A mahjong tile storage slot of the mahjong tile jacking component is bent in an arc-shaped form and the bending angle is greater than 180 degrees; the mahjong tile jacking component is equipped with a first arc-shaped mahjong tile storage part and a second mahjong tile storage part in different bending radiuses; the mahjong tile jacking component comprises a mahjong tile pushing slide block base, a mahjong tile pushing block and a mahjong tile jacking push rod which are arranged on a mahjong tile jacking bracket; the mahjong tile pushing slide block base is driven to rotate around a fixed point by a mahjong tile jacking motor; a mahjong tile pushing slide block is in sliding connection with the mahjong tile pushing slide block base; the mahjong tile jacking push rod is fixedly connected with or integrally manufactured with the mahjong tile pushing slide block; a mahjong tile jacking push head is arranged on the mahjong tile jacking push rod; a cam slot matched with the mahjong tile pushing slide block is formed on the mahjong tile jacking bracket. According to the scheme, four sets of mahjong tile picking carrying systems of the mahjong machine are respectively and independently arranged and are not intersected with each other; a structure without a mahjong tile rotating device or stacking head is adopted, so that the problems that the stacked mahjong tiles are pushed bias, are tightly blocked and cannot be pushed into the mahjong tile storage slot can be avoided; the height of the main frame of the mahjong machine and the manufacturing cost are lowered; the usage experience and comfort level are higher.

A transmission line for high-frequency differential signals and having a transforming impedance is formed into a substrate. The transmission line is comprised of a first slot, the opposing surfaces of which carry a conductive surface capable of carrying electrical signals. By virtue of their dimensions, spacing and dielectric filler, the conductive surfaces constitute a transmission line. A second slot, also with opposing surfaces, each of which also carry a conductive surface but which are spaced differently than the opposing surfaces of the first slot, provide a second transmission line but with a different impedance. The impedances between the two transmission lines are transformed by an impedance transition section of transmission line that is slot section the dimensions of which are tapered to meet the different slot dimensions of the two different transmission line segments.

A battery-operated driver-drill (1) includes an epicycle reduction gear unit (8) which encases a switchover sleeve (26) having inner teeth (27) and outer teeth (28). The gear unit (8) is rotatably mounted on second and third internal gears (19, 20) and integrally slidably connected with a slide plate (37). By operating the slide plate (37), the switchover sleeve (26) may be slid between a first position, in which the slide plate (37) engages one of the second and third internal gears (19, 20) while engaging axial ridges (29) of a first gear case (5), and a second position, in which the slide plate (37) simultaneously engages both the second internal gear (19) and a first carrier (10) adjacent to the second internal gear (19) while disengaged from the axial ridges (2).

The invention discloses an automatic speed change mechanism for a dual-motor clutch-free blade electric vehicle. The automatic speed change mechanism comprises a first input shaft, a second input shaft and an output shaft which are arranged in parallel. A first-gear driving gear, a first synchronizer and a third-gear driving gear are arranged on the first input shaft. A second-gear driving gear, a second synchronizer and a fourth-gear driving gear are arranged on the second input shaft. A first-gear driven gear meshed with the first-gear driving gear, a second-gear driven gear meshed with the second-gear driving gear, a third-gear driven gear meshed with the third-gear driving gear and a fourth-gear driven gear meshed with the fourth-gear driving gear are arranged on the output shaft. The automatic speed change mechanism removes a clutch, the structure of the whole mechanism is simplified, and the manufacturing cost is low. By means of dual-motor driving and controlling the synchronizers and driving motors to achieve gear shifting without power failure, the power switching smoothness is good. When any driving motor breaks down, the other driving motor can work continuously to drive the vehicle to run. Thus, the system reliability is high.

The invention discloses a mahjong machine and a tile supplying method thereof. Four sets of tile collection and transportation systems are independently arranged respectively and not arranged in a staggered mode, in a tile supplying component, a tile storage groove is bent in a large-angle arc shape, the storage number of mahjong tiles in the tile storage groove is increased, the height and manufacturing cost of the main unit of the mahjong machine are greatly lowered, and the use experience and the comfort are better. A cover plate which can be opened upward is arranged, therefore, in the rising process of a tile lifting supporting plate, the mahjong tiles on the edges of the tile lifting supporting plate can lift the cover plate, after the tile lifting supporting plate is parallel to and level with a desktop plate of the mahjong machine, the cover plate is returned, and accordingly the situation is avoided that a larger gap is formed between the tile lifting supporting plate and the desktop plate of the mahjong machine or marginal mahjong tiles on the edges bump against the desktop plate of the mahjong machine. Accordingly, a grading tile supplying mode can be adopted, a player can start to play mahjong tiles by only setting upright six and half sets or thirteen tiles of supplying tiles for the first time, the process of manual tile distribution and arraying is omitted, the player operates the mahjong tiles more easily and conveniently, and the entertainment experience is better.

The invention relates to a multifunctional complex printer. The multifunctional complex printer comprises a lifting device of a paper feed part. The multifunctional complex printer is characterized in that a corona device, a first AC servo tension detection device and a first cooling pull roll device are sequentially arranged at right side of a first deviation correction device, an intaglio printing unit is arranged above the corona device, the first AC servo tension detection device and the first cooling pull roll device, a first interchangeable hectograph unit, a second interchangeable hectograph unit, a third interchangeable hectograph unit, a fourth interchangeable hectograph unit, an interchangeable letterpress printing unit, an interchangeable screen printing unit and a first interchangeable flexography printing unit are sequentially arranged at the right side of the intaglio printing unit, a fourth AC servo tension detection device is arranged below a reserved platform of an inkjet device, and a second two-cylinder die cutting device, a back cutting device and a television monitoring camera are sequentially arranged at the right side of a first two-cylinder die cutting device. The multifunctional complex printer has the advantages of flexibly combining various printing modes according to pluralism of products and optionally exchanging printing modes of various color classes.

Slot transmission lines are formed in dielectric substrates. Several of such substrates can be stacked together. When stacked together, the conductive surfaces that form the transmission lines can be terminated in the same plane whereat the conductive surfaces form contact terminals. The co-planar contact terminals can be coupled to contact points on a circuit board. Signals on the circuit board can thereby be coupled into the slot transmission lines that extend through the dielectric substrates.

The invention concerns a method for operating a transmission, in particular a dual-clutch transmission for a motor vehicle, which comprises at least two partial transmissions each of the partial transmissions having at least one input shaft on a drive input side of the transmission, which are arranged on an input shaft axis, an output shaft as the drive output shaft of the at least two partial transmissions on a drive output side of the transmission, wherein the drive output shaft is arranged on the input shaft axis or on at least one countershaft axis, in particular one that is parallel to the input shaft axis, an intermediate gear system on the at least one countershaft axis with at least one countershaft, wherein at least one of the input shafts can be connected by way of at least one gear plane and / or at least one shifting element to the drive output shaft, wherein at least four gear planes are arranged for obtaining forward gears and at least six shifting elements are provided and wherein on the at least one countershaft axis in each case only one countershaft is arranged, which has only transmission elements in the sense of fixed wheels for the one countershaft concerned, wherein by means of the transmission at least a plurality of forward gears and / or reverse gears can be obtained, and wherein at least one of the gears obtainable by means of the transmission is designed as a direct gear, such that when the direct gear is engaged all the shifting elements for coupling the intermediate gear system via the gear planes into the force flow can be disengaged, wherein each gear plane can be coupled by means of a shifting element arranged on the input shaft axis to a shaft, and wherein the gear next-lower than the direct gear is designed as a coupling gear.The invention also concerns a transmission and a motor vehicle having a transmission.

The invention provides a five-degree-of-freedom artificial hand mechanism, relates to an artificial hand mechanism and aims to solve the problems that the conventional artificial hand has single degree of freedom and cannot realize independent movement of each finger. Five drivers, five reducers and a palm circuit board are all integrated in a cavity of a palm; a thumb driver and a thumb reducer are arranged along a width direction of the palm, the four drivers except the thumb driver and the four reducers except the thumb reducer are arranged along a length direction of the palm, and a wrist and the palm are rotatably connected relatively; each driver is in transmission connection with the corresponding reducer, and the reducer is in transmission connection with a corresponding transmission mechanism; and a rotating part of each potentiometer is connected with the corresponding transmission mechanism, and the transmission mechanism is supported on a corresponding substrate. The five-degree-of-freedom artificial hand mechanism has five degree-of-freedom, and improves the flexibility of the artificial hand; and due to the simple and reliable transmission, relative motion of each finger is realized, and adaptive grasping of objects of different shapes and sizes is also realized.

The double pendulum milling head driven by the AC permanent syntactic rotor torque motor having a cross hollow shaft, whose both ends fixed on the rotor of the horizontal torque motor at both ends of the A shaft. Acting as an integral, they are fixed on the rotor of the vertical torque motor of C shaft. In this way, vertical motor driving the milling head to rotate around C shaft, and A shaft horizontal motor driving the pendulum of milling head around A shaft. It complete the complex machining of the working piece through compound motion in two directions matching the high speed revolution of the shaft itself. It is compact in structure, simple of drive, good in rigidity, smaller in mechanical components quantity, higher reaction sensitivity, free from wear and reverse gap, being able to machining for a five-face body with high precision.

A drive member attached to the output shaft of a DC motor placed on a shutter base board includes a drive pin connected to the arm of a shutter blade within a blade chamber for driving the shutter blade to open and close an exposure opening with the reciprocal rotation of the DC motor. A brake member rotatably attached to the shutter base board and having a frictional force applied thereto by a spring washer brakes the rotation of the drive member when a bent portion is pushed by the drive pin to rotate.

The present invention relates to a solar power generation apparatus, which comprises: torque tubes which are arranged to form a plurality of columns; a plurality of solar panels which are installed along each torque tube; posts which rotatably support each torque tube; lever arms which are coupled with each torque tube; a linkage which is disposed on the lower side of the torque tubes and is connected to each lever arm; an actuator which reciprocates the linkage in the longitudinal direction of the linkage, thereby rotating the torque tubes around an axis based on the longitudinal direction of the torque tubes; and a bed frame which is installed between some of the plurality of posts, wherein the actuator is supported thereon.

The invention discloses a medical grinding cutter. The cutter comprises a knife tube component and a grinding head, wherein the grinding head is mounted at the front end of the knife tube component; the grinding head can be driven for pitching and self-rotation; the tail end of the grinding head in the circumference direction is hinged to an inner knife tube in a transmission manner; a flexible transmission section is positioned at the front end of the inner knife tube and used to be hinged to the tail end of the grinding head, and can transfer torque. According to the invention, the medical grinding cutter adopts a direct hinging structure to transfer the transmission between the inner knife tube and the grinding head, can conduct a pitching motion, and adopts a flexible transmission structure to compensate axial deviation caused by pitching and transmission; the transmission structure is simple, and the transmission chain is shorter, which facilitates stable control, so that the operative efficiency is improved; the medical grinding cutter also adopts a structure capable of adjusting both the pitching and circumferential positions of the grinding head, so that the universal orientation adjustment is realized; the medical grinding cutter has a good adaptation to an operative site and higher precision; the operative process efficiency can be improved; the pain of the patients can be minimized, and meanwhile, the treatment cost can be reduced.

The invention provides an exoskeleton hand rehabilitation training device for hand rehabilitation training of a stroke patient. The exoskeleton hand rehabilitation training device mainly comprises a finger driving device, a hand supporting assembly, a wrist supporting assembly and a motor driving device. The finger driving device is installed on the hand supporting assembly. The hand supporting assembly and the motor driving device are installed on the wrist supporting assembly. Power of a motor is transmitted to the finger driving device through a steel wire flexible shaft assembly, finger joints can move through gear transmission, the four fingers can be driven independently, the structure is simple and easy to obtain, and due to the rear motor driving device and the steel wire flexible shaft driving mode, the weight of the finger exoskeleton structure is lowered. Due to the fact that an arc track structure is arranged on the finger driving device, the rotation center of the exoskeleton device and the rotation center of the finger joints are kept consistent, and the finger driving device can adjust the length of the exoskeleton finger and replace a finger fixing ring according to the lengths and radiuses of fingers of the patient.

The invention provides a horizontal rehabilitation training device for upper and lower limbs. The horizontal rehabilitation training device comprises a driving unit, a rack, lower limb rehabilitation units and an upper limb rehabilitation unit; the driving unit comprises a driving motor, a speed reducer and a clutch; each lower limb rehabilitation unit comprises thigh supports, shank supports, rehabilitation wheels, a crank lever and a slider guide rail mechanism; the upper limb rehabilitation unit comprises handles and a parallelogram four-linkage, and is driven by a motor; the crank levers are driven by the output shaft of the speed reducer to do reciprocating rotation for an angle; sliders in the lower limb rehabilitation units are driven by chutes in the crank levers in the reciprocating rotation to do reciprocating rectilinear movement in sliding rails, therefore linkages which consist of the thigh supports and the shank supports rotate to driven both legs to perform alternate bend and stretch rehabilitation training. The horizontal rehabilitation training device provided by the invention is simple in structure and can move, can be put on a hospital bed for use so as to relieve the own weight-bearing problem brought by the traditional rehabilitation mechanism, has various rehabilitation forms, and not only can be used for passive rehabilitation training but also can be used for active rehabilitation training.

A switching method of a button switching shower includes: step 1, pressing a button slidingly connected to the shower, and then the button slides; step 2, the button acts on the linking seat of the pawl for rotating the pawl; step 3, the pawl rotates the ratchet wheel through the control end of the pawl, and the shape of the elastic claw of the pawl is changed for restoring energy; step 4, the rotation of the ratchet wheel rotates the water diversion disc, and then the water diversion disc is in place, and then the water diversion disc switches the outlet functions, the stopping claw of the pawl is against the ratch of the ratchet wheel for stopping the ratchet wheel inversion; step 5, the pressing is loosened for resetting the button, and the elastic energy of the elastic claw is released for resetting the pawl.

The invention discloses a three-working-position electric operation mechanism for a switching device, and a driving device, a manual interlocking device and an electrical control device are arranged in a case of the mechanism, wherein the driving device adopts a single motor, a gear pair, a worm and worm gear pair, a two-way controllable overrunning clutch and an output shaft and is connected with a three-position isolation / grounding switch through a shaft coupling so as to realize the operations of closing, opening and grounding; a frame is provided with position-limiting clutch pin shafts in the closing position and the grounding position respectively, and a pair of detents, a half shaft and a tripping electromagnet are arranged in the opening position of the frame, thereby realizing the positioning for closing, opening and grounding and the mechanical clutch protection; a chain wheel transmission / bevel gear pair is used for realizing the state indication of the three positions on the front surface and the side surfaces and the position switching of a three-working-position auxiliary switch; and the manual interlocking device can realize manual-electrical interlocking and electromagnetic interlocking among switching elements. The three-working-position electric operation mechanism is simple in structure, stable in output angle, accurate in positions and unrelated to the inertia of a system, the mechanical-electrical interlocking is realized between isolation and grounding, the production and the use are safe, the reliability is very high, the cost is low, and the operations of closing a break and opening the break can be performed rapidly.

A supercavitating navigation body model with an internal steering gear comprises a head cone section with a cavitation device and a cabin with an empennage. The cabin comprises a pressure measuring cabin section, a motor cabin section, a feedback cabin section and an empennage cabin section, the adjacent cabin sections are fixedly connected and sealed, the steering gear is arranged in the cabin and comprises a transmission shaft driven by a motor and a speed reducer, the transmission shaft is provided with a rotary encoder, one shaft end of the transmission shaft is fixedly connected with a driving bevel gear, the two ends of a hollow shaft are respectively and fixedly connected with a rudder spindle, the axis of the hollow shaft is perpendicular to the axis of the transmission shaft, the hollow shaft is provided with a driven bevel gear meshed with the driving bevel gear for transmission, the motor and the speed reducer are fixedly installed in the motor cabin section, the rotary encoder is located in the feedback cabin section, the transmission shaft penetrates through the feedback cabin section and stretches into the empennage cabin section, and the two rudder spindles are rotataby supported against the empennage cabin section and form the empennage. The steering gear can be arranged in the supercavitating navigation body model in an integrated mode, and active control and angle feedback for the two rudder spindles can be achieved.

The invention relates to spinning equipment, in particular to a semi-continuous high-speed spinning machine. The semi-continuous high-speed spinning machine comprises a rack, a glue supply device, a strip forming device, a spinning device and a winding device, wherein a spinning roller of the spinning device is horizontally arranged relative to an operating surface of a spinning surface. The operating surface of the spinning surface is a horizontal working surface in a spinning surface area, and the fact that the spinning roller is horizontally arranged relative to the operating surface of the spinning surface refers to that the spinning roller is horizontally installed relative to spinning workers when the spinning workers face towards the winding device. According to the semi-continuous high-speed spinning machine, the spinning roller is horizontally arranged relative to the operating surface of the spinning surface, and two ends of the horizontally arranged spinning roller are fixed, so that the spinning speed can be increased on the basis of the semi-continuous high-speed spinning machine, the spinning roller is ensured to rotate stably without shaking, and the problems of intertwining and breakage of strips caused by shaking of the spinning roller during spinning are solved.

The invention discloses a cleaning machine with a supporting and thrusting mechanism, which comprises a rack and a plurality of cleaning tanks, wherein a lifting bracket used for supporting material baskets is arranged in each cleaning tank; at least one side edge of each lifting bracket is connected with a lifting cross beam through a bracket connecting rod; a lifting driving mechanism mounted on the rack can drive the lifting brackets to be lifted to and fro in the vertical direction through the lifting cross beam; horizontal material basket push rods used for horizontally pushing the material baskets to move are further arranged above the cleaning tanks and are driven by a horizontal driving mechanism; fixed brackets are fixedly arranged between adjacent cleaning tanks; upper bearing surfaces of the fixed brackets are positioned in the same bearing plane as bearing surfaces of the lifting brackets lifted to high positions; and the bearing plane is higher than tank openings of the cleaning tanks. The cleaning machine has the advantages of stability and reasonableness in structure and great carrying capacity; and particularly, a cleaning and conveying path of the cleaning machine is reasonable, the effective cleaning time is long and the work efficiency is high.

The invention belongs to the technical field of parking equipment and provides a stereoscopic parking lot. The stereoscopic parking lot comprises a tower column and a plurality of layers of parking units arranged on the tower column; each layer of the parking unit comprises a vacant site and a plurality of parking spaces; a pushing device is arranged between the adjacent two parking spaces; the parking spaces are slidingly mounted on a first rail under the driving of a first power device; a hoisting channel is internally provided with a second rail which is connected with the hoisting device; and the second rail is provided with a second power device which is used for driving the parking spaces to slide on the second rail. With the adoption of the stereoscopic parking lot provided by the embodiment of the invention, the ground space of a plurality of the parking spaces which are arranged around the tower column and one tower column is occupied and a plurality of overhead parking spaces are realized; the occupied area is small, more vehicles are parked and the space can be sufficiently utilized; the framework design in a trunk shape is adopted so that the shielding to peripheral buildings is small and the lighting is not influenced; and the time for parking and taking the vehicle is 2-3 minutes so that the stereoscopic parking lot is rapid, safe and efficient and is suitable for middle-small-sized parking lots.

The invention discloses high-precision vegetable and fruit quick intelligent selecting equipment. The high-precision vegetable and fruit quick intelligent selecting equipment comprises a feeding conveying device, a horizontal conveying device and a pneumatic mechanism, wherein a horizontal conveyer belt comprising rollers is arranged on the horizontal conveying device; one or more groups of screening and discharging mechanisms which are opposite to the pneumatic mechanism in an up and down manner are arranged above the horizontal conveying belt; each screening and discharging mechanism comprises a discharging platform which is fixedly arranged above the horizontal conveying device; anti-falling baffles are respectively arranged on the front side and the rear side of each discharging platform; a rotational flow cover is arranged on each discharging platform; the side edge of each rotational flow cover is arc-shaped; a substandard product blowing-out opening is formed by two side edges of each rotational flow cover and two side edges of the corresponding discharging platform; each substandard product blowing-out opening is in up-and-down correspondence with air jet holes of the pneumatic mechanism. According to the high-precision vegetable and fruit quick intelligent selecting equipment disclosed by the invention, the screening and discharging mechanisms adopting special structures, a feeding and conveying device and rollers in the horizontal conveying device are arranged, the effects of positioning and precise photographing of vegetables and fruits are increased in an omnidirectional manner, and the screening efficiency is also greatly improved.

The invention relates to a double-clutch transmission mechanism. The mechanism comprises a motor input shaft, a first auxiliary shaft, a second auxiliary shaft and an intermediate shaft which are arranged in parallel and can rotate around respective axis, wherein the axes of the motor input shaft and the intermediate shaft are positioned between the axes of the two auxiliary shafts. The mechanism adopts a position gear as a carrier gear to directly connect with a differential mechanism, effectively reduces number of gears, and has the advantages of simpler whole transmission structure, high integrated level and reduction in cost. In addition, the double-clutch transmission mechanism adopts lower transmission series on common positions and can effectively save energy and improve efficiency.

Present invention relates to a frictional wear testing device. It features including two-dimensional force sensing detect part and rotary motion part, said force sensing detect part including one upper connection seat, one vertical sensor, one support seat, one horizon sensor, one pressure head, one motor, bracing frame, one transmission mechanism, one load turntable. Said invention can complete mechanical property testing for different kinds of fixation material combined with universal material testing machine.

An improved structure of a transmission structure for an electrically operated bicycle, structured to include an electric mechanism and a pedal coaxially disposed on a pedal shaft of a bicycle. The present invention is characterized in that: a rotating shaft of the electric mechanism is a hollow tube that passes through two sides of the electric mechanism; the pedal shaft of the pedal mechanism penetrates and is disposed within the rotating shaft and is able to rotate therein; and the driving chain wheel is pivotal disposed on an outer side of the rotating shaft. One side of the driving chain wheel is coupled to the rotating shaft of the electric mechanism by means of a clutch, and the other side of the driving chain wheel is coupled to a pedal crank of the pedal mechanism by means of a unilateral bearing.

The present invention relates to a variable transmission ratio concurrent axis coniflex gear pair geometrical designing method. Based on spherical engagement theory research said method can implement parameter design of given transmission ratio relationship and concurrent axis coniflex gear pair of interaxial included angle. Tooth profile calculation and solid model creation, and utilizes given transmission relationship and interaxial included angle to define parameter equation of a pair of pitch cone faces and utilizes the kinematics relationship of spherical engagement and CAD software to form non-cone gear solid model. Said non-cone gear pair can simplify existent variable transmission ratio transmission mechanism and can be substituted for combination of several pairs of gear pairs, so that it has extensive universality.

The invention relates to a spiral promoting drier, and relates to a drying plant of a material having a biological active substance. The spiral promoting drier is characterized in that a spiral promoting unit body is provided with a shell and a motor, and the periphery of the shell is provided with a heat exchange sleeve with a heating medium inlet and a heating medium outlet; a motor drives a spiral agitator shaft arranged in the inner cavity of the shell, the upside of the front end side wall of the shell is provided with a feed port, and the downside of the rear end side wall of the shell is provided with a discharge hole; a multi-hole spiral piece winds on the spiral agitator shaft, wherein the multi-hole spiral piece penetrates through the two ends of the spiral agitator shaft and multiple air holes are evenly distributed on the multi-hole spiral piece; the upside of the front end side wall of the shell is provided with an air outlet arranged on the front of the feed port, and the upside of the rear end side wall of the shell is provided with an air inlet; the heating medium inlet is arranged on the front end part of the heat exchange sleeve, and the heating medium outlet is arranged on the rear end part of the heat exchange sleeve; and two or multiple spiral promoting unit bodies are connected in series so as to constitute the spiral promoting drier, the drying of a heat-sensitive material with complicated physical properties is solved in large production; and the spiral promoting drier provided by the invention is convenient for installation, transportation and adaptive to various areas.

An electro-magnetically shielded slot-transmission line is formed by metallizing the opposing sides of a slot cut through a dielectric substrate. A ground plane is deposited on the bottom of the substrate. Conductive vias through the substrate and that contact the ground plane are located on both sides of the metallized slot surfaces. Conductive pads on the upper surface and which contact the vias provide additional shielding.