402results about How to "Good insulation properties" patented technology

Appliance door (2), in particular door of a (household) refrigerating appliance, having a door structure (4) with a front-side glass plate (6) and a back plate (8) of another material arranged at a distance (D) from the latter by an intermediate space (H), wherein the front-side glass plate (6) forms a structural component of the door structure (4).

The method of producing a semiconductor device in which chips are resin-molded, including steps of: preparing frames having front and back surfaces and die pads; preparing an insulation resin sheet having a first and a second surfaces; preparing a resin-sealing metal mold having cap pins; mounting the resin sheet inside the resin-sealing metal mold in such a manner that the second surface of the resin sheet contacts an inner bottom surface of the resin-sealing metal mold; mounting power chips on the surfaces of the die pads; positioning the frames on the first surface of the resin sheet in such a manner that the back surfaces of the die pads contact the first surface of the resin sheet; pressing the die pads toward the resin sheet using the cap pins and fixing the die pads; injecting a sealing resin in the resin-sealing metal mold and hardening the sealing resin; and removing the semiconductor device in which the power chips are molded with the sealing resin out from the resin-sealing metal mold. The resin sheet may include a metal foil which is disposed to the second surface.

A fabric for thermal management including the cooling of an object, such as a person's skin. The fabric is formed of a plurality of materials including at least one liquid transport enhancing material and at least one evaporative transport impeding material. When the fabric is in use, the transport enhancing material is located near an object to be cooled, while the evaporation impeding material is spaced away from the object. The fabric is peached so that there is an entanglement of the two materials. Peaching is performed on both sides of the fabric, but initially on the side with the transport enhancing material such that a portion of the evaporation impeding material is pulled into the fabric core. A method of making the fabric is also described.

In order to ensure high levels of insulation performance, and low cost, and have an excellent external appearance, as a ceramic constituting an insulating coating 6 being a ceramic coating layer, one with alumina as its main component, and in which the content of titanium oxide is limited to 0.01 to 0.2 percent by weight is used. Moreover, a particle size of ceramic forming the coating layer is 10 to 50 μm, and average particle size is 15 to 25 μm. By limiting the content of titanium oxide, the insulating coating 6 can be made thin, and by limiting the particle size the film thickness accuracy can be improved, thus simplifying finishing. Moreover, by mixing of titanium oxide, deterioration of the external appearance after sealing can be prevented. As a result, the above problem is solved.

A pouch type lithium secondary battery including a medium- or large-sized battery module includes: a jelly-roll type electrode assembly; a resin-type first packing material that is formed of a two-layer structure having an inner resin layer and an outer resin layer, and for packing the jelly-roll type electrode assembly in the form of a unit cell; and a metal-type second packing material that integrally packs and contains two or more unit cells packed in the first packing material in the form of a module, and prevents moisture and gas penetration by a sealed structure. The pouch type lithium secondary battery is applicable particularly to medium- and large-sized batteries for EVs, p-HEVs, HEVs, and so on.

There is provided a spindle motor including: a base member having a through-hole formed therein; a circuit board installed on a lower surface of the base member and including a communication hole formed therein to correspond to the through-hole; an insulating member insertedly disposed in the through-hole and having a lead part of a coil penetrating therethrough; and a sealing member filling a space formed by the insulating member insertedly disposed in the through-hole and the base member to thereby close the through-hole.

Provided are semiconductor packages and methods of fabricating the same. An exemplary semiconductor package includes a die pad including a dimple filled with an insulating material in an upper surface or a lower surface thereof. A semiconductor chip is mounted on the upper surface of the first die pad. A package body encapsulates the first die pad and the first semiconductor chip and includes a pinhole. A bottom surface of the pinhole terminates at the insulating material.

The invention discloses a preparation method of high thermal conductive insulating soft magnetic metal powder. The method comprises the following steps that (1) an insulating coating solution is prepared, wherein a coating agent is weighed according to a proportion, the coating agent comprises nano boron nitride, nano aluminum nitride, nano silicon nitride, sodium silicate and nano zirconia, the coating agent is added into distilled water, stirred and dissolved to obtain the insulating coating solution, and the mass concentration of the insulating coating solution is 30-50 g/L; (2) the insulating coating solution obtained in step (1) is adopted to coat metal powder to prepare insulating powder; (3) an adhesive is prepared; (4) the soft magnetic metal powder is prepared. The invention alsoprovides the high thermal conductive insulating soft magnetic metal powder prepared by the method. The preparation method of the high thermal conductive insulating soft magnetic metal powder and the high thermal conductive insulating soft magnetic metal powder have the advantages that through the preparation of composite coating film, not only is the soft magnetic powder uniformly coated, but alsothe insulation property and thermal conductivity of the powder are greatly improved, the method is simple and feasible easily, and the method is very suitable for industrial production.

The invention discloses a self-sealing joint. The invention comprises a joint body (1) which is provided with a sealing surface (8) of the joint body; a sealing valve core (2), a limiting shield ring (5), a spring seat (4) and a reset spring (3) of a metal limiting scapular (7) which are applied in combination with the sealing surface (8) of the joint body are mounted at the middle part along the axial direction; a ring shaped inclined plane (14) is mounted at the top part of the metal limiting scapular (7); both the angle (Alpha) between the ring shaped inclined plane (14) and the axis of the sealing valve core (2) and the angle (Beta) between the sealing surface (8) of the joint body and the axis of the joint body (1) can be 44 degrees to 46 degrees; the top part of a sealing ring (9) is an inclined plane (15); the sealing ring (9) is embedded at the lower part of a metal limiting scapular (2); the angle (Gamma) between the inclined plane (15) and the axis of the sealing valve core (2) can be 59 degrees to 61 degrees when the sealing ring (9) is in a natural state. The invention has no sealing space and the sealing valve core is protected from abrasion.

The invention discloses a 550-DEG C high-temperature metal material electromagnetic ultrasonic flaw detection method and device. The structure of a high-temperature electromagnetic ultrasonic probe is that a ceramic coil (1), a copper plate (5) and a high-temperature-resisting permanent magnet (2) are poured into a brass shell (3) through a first ceramic binding agent (6); the copper plate (5) is located between the ceramic coil (1) and the high-temperature-resisting permanent magnet (2); a corundum sheet (4) located on the outer side of the ceramic coil (1) is arranged at a working end of the brass shell (3). Based on a ceramic layer silver wire and a high-temperature-resisting N-AH SmCo permanent magnet, the 550-DEG C high-temperature metal material electromagnetic ultrasonic flaw detection method and device are suitable for preforming long-time and reliable defect nondestructive detection in a 550-DEG C high-temperature environment, and relatively high energy conversion efficiency still can be kept in the high-temperature environment.

An insulating silicon cream with high heat conductivity is prepared from the mixed aluminium nitride particles which high heat conductivity (3.0 W/m.k) and high insulating property and methyl silica oil through proportionally mixing, ball grinding, vacuum stirring and removing air. Said mixed aluminium nitride particles is composed of big particles (12 microns) and small particles (1.5 microns).

A heated hand grip for use on a ski pole, shovel or other cold weather hand-held tool or object is provided. The hand grip includes a bushing for receiving the end of a tubular object, such as a ski pole, and retaining the object within a cavity/bore of a central core of the hand grip. The hand grip is compressed around the bushing for tight engagement. A heating element is wrapped around the exterior surface of the central core and an outer housing surrounds the heating element and the central core. In a preferred embodiment, the outer housing is a pour-over fluid state material that is solidified. In another preferred embodiment, the heating element is a wire-wound heating element laid out in a pattern on a fiberglass backing material. In still another preferred embodiment, the bore houses a pair of lithium-ion batteries connected in series (referred to as the “battery”). A switch is also housed in the bore, with the switch control (such as a push button) protruding from the top of the grip. A printed circuit board (PCB) is connected to the switch and located within the bore. A cavity is located within the central core for positioning a recharge jack.

A fusing roller apparatus, and a process of manufacturing thereof, of an electro-photographic image forming apparatus including a cylindrical internal pipe, a fusing unit which is installed to enclose the internal pipe, a heat generator which is installed between the fusing unit and the internal pipe to generate heat, and an insulating layer which includes a first insulating layer that is formed between the heat generator and the fusing unit and a second insulating layer that is formed between the heat generator and the internal pipe to be thicker than the first insulating layer.

An electromagnetic wave absorber comprising (a) soft ferrite having its surface treated with a silane compound having no functional group, (c) magnetite and (d) silicone, or comprising (a) soft ferrite having its surface treated with a silane compound having no functional group, (b) flat soft magnetic metal powder, (c) magnetite and (d) silicone, which electromagnetic wave absorber excels in electromagnetic wave absorption, heat conduction and flame resistance, exhibiting less temperature dependence, and which electromagnetic wave absorber is soft, excelling in adhesion strength and further excelling in high resistance high insulation properties and in energy conversion efficiency being stable in MHz to 10GHz broadband frequency. There is further provided a laminated electromagnetic wave absorber comprising the above electromagnetic wave absorber overlaid with a reflection layer of conductor, which laminated electromagnetic wave absorber can be closely stuck onto an unwanted electromagnetic wave emission source such as a high-speed operating device, having such an adhesive strength that even when stuck to a horizontal glassy-surface ceiling face of resin-made cage, would not fall.

The invention discloses a composite soft magnetic material and a preparation method thereof. The composite soft magnetic material comprises the following components in percentage by mass: 82.56 to 98.45 percent of FeSiCr, 0.3 to 8.9 percent of Fe2O3, 0.1 to 1.93 percent of NiO, 0.1 to 2.13 percent of ZnO and 0.1 to 0.53 percent of CuO. The preparation method of the composite soft magnetic material comprises mixing, pre-burning, smashing, pressing and sintering. The saturation flux density of the composite soft magnetic material is adjusted by adjusting the content of FeSiCr, and the content of generated NiCuZn ferrite is adjusted by adjusting the content of Fe2O3, NiO, ZnO and CuO, so that the insulation and pressure-resistant property of the composite soft magnetic material are enhanced.

A backing material that is advantageous in insulation property and can realize a desired acoustic impedance without making the cross-linking and curing reaction of elastomer or resin as a parent material unstable. The backing material is provided on a backside of vibrators for transmitting and/or receiving ultrasonic waves in an ultrasonic probe, and the backing material includes: a parent material containing elastomer or resin and having an insulation property; and composite powder dispersed to fill the parent material, and the composite powder includes powder of a material having a larger acoustic impedance than that of the parent material and an insulation coating for covering a surface of the powder, and the insulation coating contains an oxide of an element of group XIII to group XV except for carbon (C), nitrogen (N), phosphorus (P).

The invention relates to a vacuum interrupter (1) with at least one substantially cylindrical, electrically insulating housing part (3), which is connected in vacuum-tight fashion to a metal part (9). In this case, the metal part has been provided with a field control element (13). The field control element (13) is arranged in a cutout (5) in the housing part (3) in such a way that the field control element (13) is arranged so as to be recessed with respect to the outer lateral surface of the housing part (3) or terminates flush with the outer lateral surface.

An insulated cooler chest for carrying perishables and cooling medium such as ice is improved to provide an extended period during which low temperatures are maintained. A sheet of flexible, synthetic, closed cell foam insulation material is placed over the perishables and the cooling medium. The sheet is trimmed or cut oversized, compared to the size of the cavity of the cooler chest. The sheet is pressed downward in the cavity and against the perishables and cooling medium, substantially conforming to the upper surface thereof. As the insulating sheet is oversized, the edges of the insulating sheet compress and seal against the interior walls of the cooler cavity, thus sealing perishables and cooling medium from outside convection currents and conductive heat. Preferably, the insulating material is of closed cell polyvinyl chloride nitrile butadiene rubber foam (PVC/NBR), which possesses elastic, compressive and rebound properties. It is lightweight, washable, sufficiently flexible and can be easily trimmed or cut to size. The insulation material is preferably of sufficient thickness to seal against the interior cooler walls and not bow significantly.