14results about How to "Ensure electrical insulation" patented technology

The flip COB light source comprises a substrate assembly, a light source area is arranged on the substrate assembly, a reflection white glue layer is laid in the light source area, multiple sets of electrode bonding pads are arranged on the substrate assembly, and welding layers and multiple chips are arranged on the multiple sets of electrode bonding pads. The chips are arranged on the electrode bonding pads in a one-to-one correspondence mode and welded to the electrode bonding pads through the welding layers, the height of the reflection white glue layer is located at the positions where the lower surfaces of the chips are located, and the reflection white glue layer is provided with a plurality of protrusions used for surrounding the connecting positions of the electrode bonding pads and the chips. The reflecting white glue layer can uniformly cover each electrode bonding pad and the welding layer arranged on the electrode bonding pad, so that the influence of the electrode bonding pads and the welding layer on the reflectivity of the substrate is reduced, impurities which are volatilized in the welding process of the welding layer and are left on the surface of a chip gap are covered, the reflectivity of the whole device is improved, and the light-emitting effect is optimized.

The utility model relates to a four-probe probe head with replaceable probes, specifically refers to a four-probe probe head composed of probes, probe sleeves, insulating probe bases, probe sleeve fixing pieces, elastic washers, mounting seats, waterproof joints and four-core cables, wherein the probes can be quickly replaced through simple pulling and inserting. The utility model can be widely used in the process monitoring and online detection of the research and development testing and production process of semiconductor materials and devices.

The present invention relates to a motor protection circuit breaker comprising metallic parts and non-metallic parts, at least a part of the metallic parts being inside a cavity made of non-metallic parts, said non-metallic parts being formed of a composite material comprising a polymer, a reinforcing filler, a flame retardant, a gas phase corrosion inhibitor, a montmorillonite, a lubricant, an antioxidant and an acid absorbent. The motor protection circuit breaker of the present invention is able to provide good performances in terms of corrosion protection, reduction of gas phase corrosion inhibitor precipitation, electrical insulation.

The digital display torque wrench comprises a metal inner shell, a square tenon connector, a torque sensor, a storage battery, a torque displayer and an insulation coating layer, a clamping groove is formed in the end, close to the torque sensor, of the square tenon connector, a protruding rod is arranged at the end, close to the square tenon connector, of the torque sensor, and the protruding rod is inserted into the clamping groove; the width of the clamping groove is larger than the thickness of the protruding rod so that a gap can be formed between the side wall of the clamping groove and the protruding rod, the gap is filled with an insulating filling layer, the torque sensor is clamped and installed in a cavity in one end of the metal inner shell, and the storage battery is clamped and installed in a cavity in one end, away from the torque sensor, of the metal inner shell. An inlaying hole is formed in the portion, between the storage battery and the torque sensor, of the metal inner shell, the torsion displayer is fixedly installed in the inlaying hole, and the square tenon connector and the metal inner shell are wrapped with the insulation wrapping layer. The torque wrench has the effect of improving the situation that an existing common torque wrench cannot guarantee the electrical insulation performance.

The present invention ensures electrical insulation between different lead portions. The first voltage detection device (30A) includes: a plurality of first voltage detection portions (310A) connected to a plurality of lead portions (110) of a plurality of battery cells (100); a first holding body (300A) holding the plurality of first voltage detection portions (310A); and an insulator disposed on the first holding body (300A) and at least a portion thereof located between the different lead portions (110).

The invention relates to a cooling body (1) for electrically insulating and / or thermally conducting contact with a support body (2), wherein the cooling body (1) has a first surface (10). In order to improve the contact, it is proposed that the first surface (10) has at least one recess (11), wherein the recess (11) is arranged in a region of the first surface (10) which is provided for edge contact with a contact surface (21) of the support body (2), wherein the recess (11) forms a closed path on the first surface (10), wherein the first surface (10) is essentially configured as a planar surface. The invention also relates to a contact system (3) having such a cooling body (1) and a support body (2), wherein the contact surface (21) of the support body (2) is arranged at the cooling body (1) such that the recess (11) of the cooling body (1) extends completely along the edge of the contact surface (21). The invention also relates to a method for producing such a contact system (3), wherein the support body (2) is placed on the cooling body (1) such that the entire edge of the contact surface (21) of the support body (2) extends along the recess (11) of the cooling body (1).

The utility model discloses a ceramic heating element with good insulating property, which comprises an upper ceramic layer, a lower ceramic layer and a tungsten slurry heating circuit arranged on the opposite side surfaces of the upper ceramic layer and the lower ceramic layer, and the upper ceramic layer is provided with two electrode holes which are respectively arranged at the two ends of the tungsten slurry heating circuit. The high-temperature-resistant ceramic capacitor is characterized in that a protective shell is arranged at the right end of the upper ceramic layer and the right end of the lower ceramic layer, the electrode holes are located in the inner side of the protective shell, an isolation block is arranged in the protective shell, a filling layer located in the protective shell is arranged on the right side of the isolation block, and the right side of the filling layer is provided with an electrode plate and a power-on wire connected with the electrode plate. The electrified wire sequentially penetrates through the isolation block, the filling layer and the protective shell and extends to the right side of the protective shell; the utility model has the advantage of good electrical insulativity.

A bus bar assembly according to an embodiment of the present invention comprises: a bus bar for guiding an electrical connection in a battery pack; the glass fiber layer comprises glass fibers and wraps the bus bar; a fireproof silicone layer filling the empty space of the glass fiber layer and wrapping the bus bar; and a glass fiber tape surrounding the fire-resistant silicone layer.

The present invention relates to a lithium secondary battery comprising: an electrode assembly comprising an electrode and a porous coating layer formed on the electrode; and a flame-retardant electrolyte containing a flame-retardant solvent defined as a predetermined flash point and a lithium salt, in which the porous coating layer contains polymer particles or ceramic particles having a zeta potential absolute value of 25 mV or more, thereby improving stability while maintaining various properties of the lithium secondary battery.

The invention relates to the technical field of polymer materials, and discloses a modified polyphenylene sulfide and a synthesis method thereof. By adding 0.5-2% of a potassium end group-containing polyaryletherketone (such as PEEK or PEEKK) during the synthesis of the polyphenylene sulfide, the potassium end group of the polyaryletherketone reacts with the chlorine end group of the polyphenylene sulfide during a heating and heat preservation treatment process, more chain extensions can be formed in a polycondensation reaction, and the directional growth of the chain can be ensured, thereby improving the orderly arrangement of polymer molecules and increasing the crystallinity of the polymer; the need to introduce oxygen into the polyphenylene sulfide to generate thermal oxidation crosslinking in the prior art can be avoided, so that the polyphenylene sulfide resin is modified and the polyphenylene sulfide resin has a linear structure, which is beneficial to the modification processing of the polyphenylene sulfide resin and the application of the polyphenylene sulfide resin, and at the same time, the electrical insulation of the polyphenylene sulfide resin in a humid environment is maintained.

The invention provides a chip embedding structure of a hybrid integrated circuit and a preparation method thereof, and the structure comprises a packaging substrate (1), the packaging substrate (1) is provided with an embedding groove (11) and BGA solder balls (2), the embedding groove (11) is internally connected with a multi-layer chip interconnection assembly (3), the multi-layer chip interconnection assembly (3) is connected with an AlN substrate (5), the embedding groove (11) is filled with heat-conducting insulation glue (6), and the BGA solder balls (2) are arranged on the packaging substrate (1). The AlN substrate (5) is electrically connected with the package substrate conductor through gold wire ball bonding. According to the preparation method provided by the invention, a multi-layer chip interconnection component embedded structure is adopted, so that the integration efficiency, the function density and the heat dissipation capability of integrated packaging of a chip embedded circuit are obviously improved, the internal structure space is fully utilized, and the high-density integration level and the packaging reliability are improved.

A battery system (10) comprising at least one battery cell (12, 14) and a bus bar assembly (16); a bus bar assembly (16) for an electric vehicle having a bus bar (18) for power distribution and a connector (20) wherein the bus bar (18) comprises a body made of an electrically conductive material, the body being at least partially hollow such that the bus bar (18) comprises at least one electrically conductive inner surface (22) and an air gap adapted to increase cooling efficiency by natural convection, therefore, passive cooling is realized.

This invention relates to an electrical device, such as a contactor, comprising metallic and non-metallic components, with at least a portion of the metallic components located within a cavity formed of the non-metallic components. The non-metallic components are formed from a composite material comprising a polymer, reinforcing filler, flame retardant, vapor phase corrosion inhibitor, montmorillonite, lubricant, antioxidant, and acid absorbent. The electrical device of this invention provides excellent properties including corrosion resistance, reduced vapor phase corrosion inhibitor precipitation, and electrical insulation.