Abstract: This invention relates to the area of housing construction technologies. Especially, it refers to a rapidly assembled, finishing-free, modular house that is equipped with single-boards. The house comprises top, side and base. The panel of each top, side and base is made of a single board with a groove. The boards for top, side and base are connected firmly via embedded channel adapters. Building this house is very simple, easy and quick. Removing this house needs only to extract channel adapters from grooves of these boards. The dismantling process is also simple, easy and quick.

Abstract: This invention is a revolution structure for mounting a light fixture that can be rotated up and down, as well as left and right. This invention comprises a light box mounting plate, a supporter and a revolution axis. The top of a revolution axis is inserted in a light box mounting plate and the bottom of a revolution axis is inserted into a hole in a supporter. A steel ball located between a mounting plate and a revolution axis is used to align a proper position that is fastened by a button-head screw. A screw nut is used to fasten the bottom of a revolution axis and a supporter. A light box that has been installed with this structure allows changing its angle and position after installation. This structure is very simple and easy to use.

Abstract: The present invention provides a method of fastening leads to the positive and negative electrodes in large capacity, high power lithium-ion batteries, power lithium-ion batteries and power lithium-polymer batteries. This method uses rivets to fasten the leads (or terminals) to the positive and negative electrodes, which makes the connection secure and increases reliability.

Abstract: The present invention relates to a method of making large capacity lithium-polymer power battery array and its associated cooling system. To effectively increase output power, serially or parallel connected multiple individual battery cells with soft shell are used. In order to prevent over heating, metal pipes are imbedded inside the battery between each individual cells and when outside air passes through these pipes, either being forced by fan(s) or flowing naturally, it will effectively reduce the temperature.

Abstract: The present invention is related to the making of a battery array with cooling system, which includes outer case, at least two individual batteries connected in either serial or parallel and a cooling system. There are array of holes drilled on two opposing sides of the outer case to allow outside cooler air pass through. The present invention resolved over heating problem in large power battery assembly, realize multiple times of voltage output of lithium ion battery; in addition, when individual battery unit is broken it can be taken out of the assembly easily.

Abstract: This invention is a management protection circuit to be used with a battery pack to prevent the charging or discharging of the battery from exceeding the upper and lower voltage thresholds. The over-discharging protection adopts a high accuracy, low power consumption, four OP AMPs comparison circuit. Its static working current is less than 0.3 mA. The charging balance protection adopts a combined circuit of a high accuracy, low power consumption, four OP AMPs comparison circuit and a direct current inverter. When any of battery units in a battery pack reaches the upper voltage threshold of charging condition, the inverter goes into an active state and takes the charging electrical energy back to the charging system. Thus, the electrical energy can be fully utilized. It also reduces the temperature raised on the charging system and increases the system's reliability.