| SHANGHAI GUANGWEI ELECTRIC & TOOLS CO., LTD. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110287673 | HIGH CONDUCTIVITY ENERGY-SAVING CLAMPING DEVICE - The high conductivity energy-saving clamping device comprises a clamp and a cable fixed upon the clamp. Inside the cable, the conductive material protrudes and is set on the juncture of the clamp and the external conductor. When the clamp is connected to the external conductor, the conductive material and the external conductor contact and meet. This invention possesses the following advantages: it simplifies the production technology, lessens raw materials needed for production and hence saves resources and cost by the direct contact of the conductive material and the external conductor; moreover, due to the increase of conductive contact area, it enhances the electrical conductivity by 10% to 15% compared to those common clamps which use tooth-like conductive parts to connect the external conductor. Meanwhile, the invention greatly decreases environmental pollution by omitting the plating process of tooth-like conductive parts. | 11-24-2011 |
| 20100302052 | INTELLECTUALIZED POLARITY IDENTIFICATION DEVICE - The invention involves an intellectualized polarity identification device which comprises an electromagnetic module connected with a control circuit. The electromagnetic module comprises a magnetic inductor (electromagnet), a movable contact plate coaxially set with the magnetic inductor (electromagnet) and stationary contact plates. The control circuit comprises a reversed-polarity alarm protecting circuit connected with a correct-polarity conducting circuit. The reversed-polarity alarm protecting circuit comprises an alarm circuit and a protection circuit, the protection circuit comprising a diode and a photocoupler. The correct-polarity conducting circuit comprises a conduction circuit and an indicator circuit, respectively connected with the photocoupler. The intellectualized polarity identification device is electromagnetically controlled such that a closed circuit is created only when the device is connected with the correct polarity. | 12-02-2010 |
