Abstract: Disclosed is a gravity-adapted optical-fiber-connector comprising a gravity-adapted block and at least one gravity connector each including a fiber-stub; tail handle; rear seat being clamped and fixed by gravity-adapted block; elastic device being sleeved on a portion of excircle surface of tail handle and limited by an end face of rear seat and that of tail handle; outer sleeve and optical cable; gravity of gravity-adapted block is applied to elastic device through the end face of rear seat, after the elastic device is compressed, a spring having identical magnitude and direction with the gravity is generated and acted on the end face of tail handle, such that a physical butt-joint-surface of fiber-stub is always applied a preload about the gravity. The gravity-adapted optical-fiber-connector has stable optical-fiber coupling efficiency and coupling performance.

Abstract: Disclosed is a gravity-adapted optical-fiber-connector comprising a gravity-adapted block and at least one gravity connector each including a fiber-stub; tail handle; rear seat being clamped and fixed by gravity-adapted block; elastic device being sleeved on a portion of excircle surface of tail handle and limited by an end face of rear seat and that of tail handle; outer sleeve and optical cable; gravity of gravity-adapted block is applied to elastic device through the end face of rear seat, after the elastic device is compressed, a spring having identical magnitude and direction with the gravity is generated and acted on the end face of tail handle, such that a physical butt-joint-surface of fiber-stub is always applied a preload about the gravity. The gravity-adapted optical-fiber-connector has stable optical-fiber coupling efficiency and coupling performance.

Abstract: This invention involves and discloses a heat control device for power equipment, which comprises heat source, heat sink base plate, heat insulation layer, dissipation heat sink and thermal control switch, wherein the heat source is placed on and in contact with dissipation heat sink, and its bottom is in direct lap joint with heat sink base plate, wherein the heat insulation layer is set around heat sink base plate, wherein the thermal control switch is placed on heat sink base plate. This invention of heat control device is one that demonstrates excellent low temperature thermal insulation property for key components or heat-sensitive elements of power equipment. The heat control device applying technical solutions described in this invention features easy manufacturing, low cost and reliable performance.

Abstract: This invention involves and discloses a heat control device for power equipment, which comprises heat source, heat sink base plate, heat insulation layer, dissipation heat sink and thermal control switch, wherein the heat source is placed on and in contact with dissipation heat sink, and its bottom is in direct lap joint with heat sink base plate, wherein the heat insulation layer is set around heat sink base plate, wherein the thermal control switch is placed on heat sink base plate. This invention of heat control device is one that demonstrates excellent low temperature thermal insulation property for key components or heat-sensitive elements of power equipment. The heat control device applying technical solutions described in this invention features easy manufacturing, low cost and reliable performance.

Abstract: A nanocrystal cerium zirconium composite oxide and its preparation and application are disclosed. The nanocrystal cerium zirconium composite oxide of the present invention comprises 4-98% by weight of CeO2 and 1-95% by weight of ZrO2, the crystalline particle size thereof is 100 nm or less, and the ignition loss thereof after igniting at 900° C. for one hour is smaller than 5%.