Abstract: The present disclosure provides an optical device including a collimator array, a plug housing, and a detachable coupling means. The collimator array includes a fiber array and a collimator lens array. The fiber array includes fibers, a plate holder, and a groove. The plate holder carries the fibers. The groove is on a top face of the plate holder and parallel along a longitudinal direction of the fibers. The plug housing is fixated to the collimator array in part by engagement of a strip protrusion at a bottom face of the plug housing to the groove on the top face of the plate holder. The detachable coupling means is at a side surface of the plug housing and configured to mechanically couple the plug housing to a corresponding receptacle housing external to the optical device.

Abstract: A thermal radiation heat dissipation device for an electronic component includes a heat dissipation substrate including a heat dissipation surface having a heat dissipation surface emissivity; and an emissivity modulation layer disposed on the heat dissipation surface including an emissivity modulation layer surface having an emissivity modulation layer surface emissivity. The emissivity modulation layer surface emissivity is greater the heat dissipation surface emissivity.

Abstract: An optical device is provided. The optical device includes a substrate and a plurality of filters. The plurality of filters are disposed over the substrate. Each of the filters includes a support body, a filter layer, and a centrosymmetric spacer. The support body has a first side surface and a second side surface opposite to the first side surface. The filter layer is on the first side surface. The spacer is attached to the first side surface by a second adhesive layer on the first side surface. The centrosymmetric spacer is attached to the filter layer, at least a peripheral portion of the filter layer is free from being covered by the centrosymmetric spacer.

Abstract: Provided is a charging system and a charging connector thereof. The charging system includes a charging stand, a positioning module mounted in front of the front surface of the charging stand for securing the tire of an electric vehicle, and a moving module mounted within and connected to the charging stand. The charging connector includes a positive charging plug and a negative charging plug located on the moving module. The charging connector is connected to the charging stand. When the electric vehicle is secured by the positioning module, the charging stand detects the type of the battery of the electric vehicle and drives the moving module to move outside the charging stand, so that the positive charging plug and the negative charging plug that are isolated from each other are connected to the chargeable positions of the electric vehicle, thereby forming a charging loop.

Abstract: Provided is a variable optical attenuator, including a pigtail, a spacer, a lens and a cap. The pigtail has a first waveguide and a second waveguide. The first waveguide transmits incident light, and the second waveguide receives the returned light. The pigtail is attached to one side of the space, and the lens is attached to another side of the space. Moreover, the cap includes a hollow portion, a first connecting portion and a second connecting portion. The lens is placed inside the hollow portion, and the space is connected to the first connecting portion of the cap.

Abstract: Provided is a charging system and a charging connector thereof. The charging system includes a charging stand, a positioning module mounted in front of the front surface of the charging stand for securing the tire of an electric vehicle, and a moving module mounted within and connected to the charging stand. The charging connector includes a positive charging plug and a negative charging plug located on the moving module. The charging connector is connected to the charging stand. When the electric vehicle is secured by the positioning module, the charging stand detects the type of the battery of the electric vehicle and drives the moving module to move outside the charging stand, so that the positive charging plug and the negative charging plug that are isolated from each other are connected to the chargeable positions of the electric vehicle, thereby forming a charging loop.

Abstract: Provided is a variable optical attenuator, including a pigtail, a spacer, a lens and a cap. The pigtail has a first waveguide and a second waveguide. The first waveguide transmits incident light, and the second waveguide receives the returned light. The pigtail is attached to one side of the space, and the lens is attached to another side of the space. Moreover, the cap includes a hollow portion, a first connecting portion and a second connecting portion. The lens is placed inside the hollow portion, and the space is connected to the first connecting portion of the cap.

Abstract: A terminal-cover assembly for a secondary battery comprises a cover and at least two terminal assemblies. The cover is arranged on one side of the battery housing and has several through-holes where two terminal assemblies are installed. Each terminal assembly has an electric-conduction terminal penetrating the through-hole. The electric-conduction terminal has an installation member at one end thereof and at least one fixing element with a female thread. A fastening element with a male thread is inserted through the installation member and engaged with the female thread of the fixing element. The fixing element and fastening element are made of an identical material. Thereby, the fastening element and the fixing element can cooperate with electric-conduction plates to cascade secondary batteries to form a battery assembly, neither damaged by hardness difference nor loosened by different extents of deformations resulting from different thermal expansion coefficients.

Abstract: The present invention discloses a secondary battery assembly with enhanced protection, which comprises a battery assembly whose two sides respectively have two electric conduction members each electrically connected with a lead; a casing having an accommodation space accommodating said battery assembly; and a protection layer into said casing fully to wrap said battery assembly. The secondary battery assembly is electrically connected with and supplies power to external devices through the leads. The protection layer is in a solid state at an ambient temperature and melts into a liquid state at a high temperature. The protection layer isolates the battery assembly from the external environment and absorbs and conducts heat generated by the battery assembly efficiently. Therefore, the present invention can prevent the overheated battery assembly from reacting with oxygen and exempt the battery assembly from combustion and explosion.

Abstract: A variable optical attenuator with wavelength-dependent loss compensation is provided, including: an optical fiber pigtail comprising at least a first waveguide and a second waveguide; a lens being disposed between the optical fiber pigtail and a reflector for focusing an emitted light from the first waveguide and returning a reflected light from the reflector to the second waveguide of the optical fiber pigtail; and the reflector being disposed at the focus of the lens to reflect the emitted light from the first waveguide passing the lens, and the reflected light passing through the lens to return to the second waveguide, the reflector having an initial position with a normal forming a pre-tilt angle with the axis of lens in the incident plane defined by the two axes, and the reflector tilting towards a larger tilt angle when an attenuation value increasing.

Abstract: The present invention discloses a high temperature-proof device for a lithium battery, which is installed in a casing of a lithium battery. The casing has a sealing board on one face thereof. The sealing board has at least one through-hole where a pressure relief module is installed. The pressure relief module has a top cover protruding from the sealing board. The top cover has at least one exhaust hole and an engagement member arranged inside the top cover. The engagement member has a first exhaust channel. A low-melting point compound is arranged inside the first exhaust channel. The present invention releases the high-temperature gas generated by inappropriate chemical or electric reaction inside a lithium battery. Thus, the present invention can prevent a lithium battery from burning or explosion caused by the high-temperature gas. Therefore, the present invention can effectively promote safety of lithium batteries.

Abstract: A terminal-cover assembly for a secondary battery comprises a cover and at least two terminal assemblies. The cover is arranged on one side of the battery housing and has several through-holes where two terminal assemblies are installed. Each terminal assembly has an electric-conduction terminal penetrating the through-hole. The electric-conduction terminal has an installation member at one end thereof and at least one fixing element with a female thread. A fastening element with a male thread is inserted through the installation member and engaged with the female thread of the fixing element. The fixing element and fastening element are made of an identical material. Thereby, the fastening element and the fixing element can cooperate with electric-conduction plates to cascade secondary batteries to form a battery assembly, neither damaged by hardness difference nor loosened by different extents of deformations resulting from different thermal expansion coefficients.

Abstract: A high-temperature-proof lithium battery terminal cover set, disposed on a lithium battery, comprising: a sealing plate, disposed on the housing, and is provided with a plurality of through holes, to penetrate at least two terminal sets, that is includes a positive terminal set and a negative terminal set, disposed respectively in through holes. Each terminal set includes: a terminal, on which is provided with a lock-and-fix portion, protruding out sealing plate; a spring, made of insulator, and is sleeved around lock-and-fix portion; a conductive plate, sleeved around lock-and-fix portion, and is connected to battery cells of lithium battery; and a low melting point locking piece, to lock and fix spring and conductive plate onto terminal. The lithium battery terminal cover set, current flowing to terminal can be cut off automatically, preventing fire or explosion.

Abstract: The present invention discloses a high temperature-proof device for a lithium battery, which is installed in a casing of a lithium battery. The casing has a sealing board on one face thereof. The sealing board has at least one through-hole where a pressure relief module is installed. The pressure relief module has a top cover protruding from the sealing board. The top cover has at least one exhaust hole and an engagement member arranged inside the top cover. The engagement member has a first exhaust channel. A low-melting point compound is arranged inside the first exhaust channel. The present invention releases the high-temperature gas generated by inappropriate chemical or electric reaction inside a lithium battery. Thus, the present invention can prevent a lithium battery from burning or explosion caused by the high-temperature gas. Therefore, the present invention can effectively promote safety of lithium batteries.

Abstract: The present invention discloses a anti-vibration and shock pressure relief device for compound containers, which is installed in one face of a container, and which comprises a sealing board and a pressure relief module. The sealing board is installed in the abovementioned face of the container and having at least one through-hole where the pressure relief module passes through the sealing board. The pressure relief module includes a top cover having at least one exhaust hole and a fastening member passing through the sealing board; an engagement member installed inside the top cover and having a pressure relief valve thereinside. The pressure relief device applies to various compound containers and can timely release the vaporized gas accumulated inside the container. Thereby, the present invention can effectively prevent compound containers from explosion and obviously improve the safety of compound containers.

Abstract: The present invention certifies control modules of engineered safety feature instruments for a power plant automatically. The control modules can be tested before storing or operating. The test is done with enhanced testing speed and saved cost. Thus, safety of the control modules is confirmed.

Abstract: The present invention certifies control modules of engineered safety feature instruments for a power plant automatically. The control modules can be tested before storing or operating. The test is done with enhanced testing speed and saved cost. Thus, safety of the control modules is confirmed.

Abstract: A valve is provided for controlling a flow of a fluid between a first environment and a second environment. The valve includes a frame adapted to fit within a perimeter of an aperture in a divider separating the first environment from the second environment. The valve additionally includes a first gate movable within the frame to control a flow of the fluid through the aperture between the first environment and the second environment. The first gate includes a substantially aerodynamically clean surface substantially free from protrusions disrupting the flow of the fluid over the first gate surface. Additionally, the first gate includes a trailing edge having a baffle adapted to cover an aft edge of the frame when the first gate is positioned to have a small opening angle. The baffle includes a plurality of 3-D notches in a front side of the baffle.

Abstract: A low resistance lithium battery set includes a chassis, and lithium batteries. A collector board is disposed in the chassis, which includes many insertion holes for connecting with the electrodes of lithium batteries. The electrodes of the batteries are penetrated through the insertion holes and then folded to connect with each other. The power output of the lithium batteries is then delivered through the contact points of the collector board. The output of the battery set is thus adjustable by changing the connection of battery electrodes. Therefore, the battery set can be used in a variety of electronic devices.

Abstract: A hose coupling includes a connector having one or more ports each having an enlarged outer duct and an inclined segment disposed between the duct and the port. One or more gaskets are disposed in the port and engaged with an inclined surface of the duct, a ferrule includes a threaded end for threading with the duct, and for forcing the gasket between the connector and the ferrule and the hose. The ferrule includes an inclined surface, a sleeve is disposed in the ferrule, and engaged between the gasket and the ferrule, and includes a number of orifices to receive spherical members which are engaged between the inclined surface of the ferrule and the hose, to solidly secure the ferrule and the hose together.