38results about How to "Reduced ground area" patented technology

Various planar inverted-F antenna configurations may include an antenna element formed on the top of a PCB and a ground element formed on the bottom of the PCB. Two or more slots may be included in the antenna element for reducing the antenna area while maintaining a suitable impedance bandwidth. A slot may be included in the ground element for reducing the ground area while increasing radiation efficiency. A folded ground may be formed on the top of the PCB for reducing system area while maintaining suitable performance. By moving the folded ground closer to the antenna element and increasing the PCB thickness, significant reductions in system area may be achieved, while maintaining or improving performance in terms of radiation pattern, radiation efficiency and impedance bandwidth.

A water filtration module (10) is made of hollow fibers for filtration from the outside to the inside of the fibers, wherein the fibers are arranged inside a casing (11) made of multiple elements (20). The module (10) and at least one element (20) include elements working together, which are designed to enable the element (20) to be mounted in the module (10) in a removable manner.

The present invention relates to a tire which is capable of taking into account snow running and running performance on a dry road surface.A tire comprises a tread portion provided with a first crown main groove (3A) continuous in the tire circumferential direction, a second crown main groove (3B) continuous in the tire circumferential direction, and a center land zone (6) defined therebetween. The center land zone (6) is provided with first center lug grooves (11) extending from the first crown main groove and terminating within the center land zone. Between the adjacent first center lug grooves (11, 11), a first corner portion (13a), which is formed between a ground contacting surface of the center land zone (6) and a groove wall (3AW) of the inboard first crown main groove, is provided with a first part (21a) and a second part (22a) which are arranged in the tire circumferential direction, wherein the first portion is chamfered, and the second part (22a) is not chamfered or less chamfered than the first part.

A pneumatic tire 10 in which a plurality of circumferential main grooves 11 that extend in the tire circumferential direction are formed in a tread surface portion, and a plurality of land portion rows 14 are partitioned by the circumferential main grooves 11, in which in at least one of the plurality of the land portion rows 14a circumferential auxiliary groove 15 extending in the tire circumferential direction and having a narrower width and shallower depth than those of the circumferential main grooves 11 is formed in a position avoiding the tire centerline CL, and among both side faces 15a and 15b defining the circumferential auxiliary groove 15, one side face on the tire centerline side extends along the normal direction of the tread surface portion or is inclined to the tire centerline side by 5 DEG or less with respect to the normal direction, and the other side face on the side opposite to the tire centerline side is inclined to the side opposite to the tire centerline side by 10 DEG to 30 DEG with respect to the normal direction. In accordance with the present invention, it is possible to improve the turning performance on snowy roads without decreasing the steering stability or quietness during travel on a dry road surface.

The invention provides an elastic body track shoe installed on an annular chain link (11). The ground contact surface of the elastic body (3) forms a When grounding, the side surfaces of both wing ends are higher than the side ends of the recessed part (5), and the inclined grounding surface (3a) is inclined relative to the installation surface (2a) of the chain link. The inclined grounding surfaces (3b, 3d) may also be curved surfaces. It is preferable to make the surrounding of the inclined grounding surface (3c) an inner curved surface or an outer curved surface. Therefore, the vehicle can be turned smoothly on a hard and flat road surface, and has the advantage of long service life.

A portable computing device having a substantially non-conducting outer housing and alternative electrical grounding and audio system architectures is disclosed. The device can be a laptop computer having a main logic board, a keyboard assembly, an audio source positioned below the keyboard assembly, and an equalizer electrically coupled to the audio source, with each of these components being electrically coupled to a universal grounding structure. The audio source emits sound waves that are propagated through the keyboard assembly and between gaps between keyboard keys and the outer housing. Settings for the equalizer can be selected to account for sound absorption and amplification characteristics of the sound waves along these sound transmission paths. The universal grounding structure includes a plurality of separate ground components that are electrically intercoupled, each being substantially smaller than the overall portable computing device, and also includes an electromagnetic interference shield around the main logic board.

The invention relates to the field of daily living equipment, in particular to a water-proof soap box. The water-proof soap box comprises a soap box body which is provided with a first bottom surface and a second bottom surface, a plurality of drain holes are formed in the first bottom surface and the second bottom surface, an arc soap tray is arranged on the first bottom surface in a protrusive mode, drain ditches are formed in the soap tray, and air convection is formed between the drain ditches and the drain holes in the first bottom surface and the second bottom surface. The water-proof soap box has the advantages that water is prevented from being accumulated in the soap box body.

The invention relates to the technical field of vehicles, in particular to a loading wheel chain assembly which comprises loading wheels and loading wheel suspensions, the loading wheels are mounted on the loading wheel suspensions, and the loading wheel suspensions are sequentially connected in series and hinged to form the loading wheel chain assembly flexible in form. The loading wheel chain assembly can be used as a loading wheel and a track supporting wheel, and can guide a rubber track by limiting the transverse displacement (in the width direction of the track) of the rubber track, so that the situation of belt separation is avoided. Due to the flexible form of the loading wheel chain assembly body, the grounding part of the walking system can better conform to the topographic change, and the grounding area of the walking system can be conveniently adjusted.

A high-voltage combined electrical apparatus includes a transformer, at least one circuit breaker, at least one oil/gas separation module and at least one operating mechanism. In an embodiment, the circuit breaker includes a ceramic insulator, an upper outgoing line seat, a lower outgoing line seat, and a disconnecting mechanism connected there between. The oil/gas separation module includes a first end electrically connected to a transformer coil of the transformer, and a second end electrically connected to the lower outgoing line seat. The operating mechanism is connected to and controls the disconnecting mechanism. The high-voltage combined electrical apparatus of an embodiment integrates a circuit breaker and a transformer, omitting the conventional transformer oil/gas sleeve and overhead line, so that the structure thereof is simpler, the cost is lower, the area of ground occupied by the equipment is reduced, and the occurrence of short circuits associated with overhead lines is avoided.

The invention discloses an underground cable and wire laying robot. The robot structurally comprises a mobile device, a supporting column, a camera and a central controller. The mobile equipment is embedded and fixedly mounted under the supporting column. A central controller is mounted on the upper end surface of the supporting column through welding. The camera is embedded and clamped on the left side end surface of the central controller. When the pressure at the upper end of the equipment in movement is unbalanced or the pressure is locally concentrated due to the pressure, the triangularouter contour formed by the movable rod and the crawler belt in the pressure dividing mechanism can be used for uniformly transmitting the soil to the lower end plane and the tension plate, so that the problem of calculation errors of the infrared scanner due to soil accumulation or forming of a concave outer contour caused by uneven pressure dividing of the outer contour due to gravity stress canbe effectively avoided.

Disclosed in the present invention is a purification system having pipelines arranged at different levels in a height direction, comprising: a first purifier and a second purifier disposed side by side symmetrically; an air input pipeline, an air output pipeline and a waste nitrogen input pipeline, wherein the air input pipeline, the air output pipeline and the waste nitrogen input pipeline are disposed at different heights, the gap between pairs of pipelines being determined so as to facilitate overhaul of three-stem valves, a value W being smaller than a value W when the air input pipeline, the air output pipeline and the waste nitrogen input pipeline are arranged in parallel on the ground, and the purification system further comprises: a three-stem valve platform formed by a framework structure in a number of levels, to facilitate overhaul of the three-stem valves. In the present invention, the rational layout of purification system pipelines greatly reduces the ground space taken up by the purification system, and the provision of the three-stem valve platform enables a hoisting device and a forklift truck to be conveniently used instead of a mobile crane, reducing the requirement for additional overhaul space.

In the invention, a tread surface is provided with a groove portion including a main groove continuously extending in a tire circumferential direction, and a land portion including a rib or a block separated by the main groove, wherein the land portion includes a first edge portion having a depression row formed by arranging long hole shaped depressions extending along the groove portion in the tire circumferential direction and a second edge portion extending along the main groove while being different in position in a tire width direction from the first edge portion, and not having the depression row.