162results about How to "Save copper" patented technology

Welding gun with double conductor composed by a torch body (1) and electronic scales (2) to measure the intensity of the sensors (6) located in each conductor (3) and with mechanisms to trigger an alarm when there is an imbalance of the intensities circulating through both conductors. To this end, a microcontroller (5) connected to intensity (6) and temperature (8) sensors in the conductors is used, with indicators of failure or anomaly. The microcontroller (5) program calculates the difference between the magnitudes of both intensity signals and determines which of the two is higher, and, based on predefined parameters, triggers the corresponding alarm signal.

A high voltage electric cable including a cable core, a cooling pipe for cooling the cable core including a polymer and adapted for carrying a cooling fluid, and a cable covering enclosing the cable core and the cooling pipe. The electric cable further includes a heat conducting element surrounding the cable core, and being arranged in thermal contact with the cable core and the cooling pipe.

This invention relates to one rare each permanent part pressing and shaping method and its magnetic adding device and taking device, wherein, the shaping method comprises the following steps: top head presses the material case into magnetic powder into mode; top and down heads unmoved and negative mode elevates to fill powder into magnetic field; top head and negative mode unmoved, the top head presses into magnetic part; the negative mode drops till whole magnetic part outside negative mode; the top head elevates to push pull bar into finally product area; the materials add devices comprises materials case and barrel with changeable height.

The invention provides a carbon brush contact-type self-coupling-type AC (alternating current) voltage regulator based on segmented variable cross-section windings. The carbon brush contact-type self-coupling-type AC voltage regulator based on segmented variable cross-section windings comprises windings and annular iron cores; the windings are divided into a plurality of sections, and the cross-section areas of the sections are different; the windings are arranged on the annular iron cores; insulation gaskets which correspond to the sections and are different in thickness are arranged between the windings and the annular iron core; and the outer edges of the windings and the central line distances of the annular iron cores are equal. Due to adoption of the carbon brush contact-type self-coupling-type AC voltage regulator based on segmented variable cross-section windings, copper material is saved and the cost is lowered.

The invention relates to a semiconductor adhesive used for electric apparatuses, which contains, by weight percentage, an adhesive material 55 to 65% which contains an epoxy adhesive 79 to 81%, a curing agent 7 to 9% and a toughening agent 11 to 13%; a packing material 31 to 41% which contains graphite 58 to 62% and kaolin 38 to 42%; and a low-temperature curing agent 2 to 4%. The epoxy adhesive is heated to fluid by a 50-60-DEG C oven; the fluidic epoxy adhesive is added into a beaker and then in a constant-temperature water bath at 50-60 DEG C; the curing agent, the toughening agent and a diluting agent are sequentially added into the beaker while stirring until stirring uniformly; and the packing material is added and stirred uniformly. The invention solves the technical problems of the prior arts such as poor shielding reliability and poor safety. The invention has the advantages of simple implementation process and high production efficiency, and can be used for electrostatic shielding or for formation of semiconductor layer.

The invention relates to the field of cable belts, in particular to a copper-plastic composite belt suitable for a communication cable and an optical cable and preparation thereof. The copper-plastic composite belt is coated on the outer surface of the communication cable or the optical cable and sequentially comprises a red copper layer (1), an adhesive layer (2) and a polyester film layer (3), wherein the red copper layer (1), the adhesive layer (2) and the polyester film layer (3) are bonded and heated to form a composite structure. The tensile strength of the copper-plastic composite belt is larger than or equal to 180MPa, the elongation at break of the copper-plastic composite belt is larger than or equal to 15%, the interlayer peeling strength between a copper belt and a plastic layer is larger than or equal to 15N/cm, the conductivity of the copper-plastic composite belt is larger than or equal to 90% IACS, and no punchthrough happens on the single side of the copper-plastic composite belt 1 kvd.c,1min.

The invention discloses a variable frequency air conditioning system for dry working condition refrigeration and a control method of the variable frequency air conditioning system, and relates to thetechnical field of air conditioners. The variable frequency air conditioning system structurally comprises a fan, a compressor, an evaporator, an expansion valve, a condenser, a hot air bypass valve,a sensor used for obtaining the evaporation temperature, an air temperature sensor, an air humidity sensor and a controller, wherein the output end of the compressor is connected with the input end ofthe condenser, the output end of the condenser is connected with the input end of the expansion valve, the output end of the expansion valve is connected with the input end of the evaporator, and theoutput end of the evaporator is connected with the input end of the compressor; a controlled end of the compressor, the air humidity sensor, the air temperature sensor, the sensor used for obtainingthe evaporation temperature and the fan are correspondingly connected with the controller and are controlled by the controller; the sensor used for obtaining the evaporation temperature is arranged onthe evaporator, and the hot air bypass valve is arranged on a pipeline between an outlet of the compressor and an outlet of the expansion valve; and the compressor is a variable-frequency compressorcapable of achieving stepless regulation of output of the refrigerating capacity, the fan is an speed-adjustable fan capable of achieving stepless regulation of output of the air volume, and the hot air bypass valve is an electronic adjustable flow valve.

The laminated cooling wall includes one base wall body layer, one laminated wall layer and one water pipe. The base wall body layer and the laminated wall layer have separate base wall body layer cooling channel U and laminated wall layer cooling channel The with separate water inlets and water outlets. The technological scheme of the present invention has raised cooling effect, saving in copper material, low cost and other beneficial effects.

The invention provides a method for starting HID lamps randomly and a control device thereof. By using a random number seed generated by a singlechip built-in clock to generate a true random number, the invention controls the random start of HIP lamps on the same circuit, thereby greatly improving the reliability and the service life of the existing electronic ballast, and creating favorable conditions for replacing the inductive ballast on a large scale.

The invention discloses an electromagnetic brake which comprises a magnet yoke and the like. An electromagnetic coil is arranged inside the magnet yoke. A fastening bolt penetrates the magnet yoke and an armature in sequence, and then the fastening bolt is fixedly connected with a brake shoe. The magnet yoke is opposite to the armature. The armature can move relative to the magnet yoke. A reset elastic component is abutted between the armature and the brake shoe; and/or a slope force amplification mechanism is arranged inside the magnet yoke. The magnet yoke directly drives the slope force amplification mechanism. The electromagnetic force of the magnet yoke is amplified by beta times through the slope force amplification mechanism; and/or a groove with a cone-shaped side surface is formed in the end portion, opposite to the armature, of the magnet yoke. Correspondingly, a boss with a cone-shaped side surface is formed in the corresponding end portion, opposite to the magnet yoke, of the armature and matched with the groove; and/or a plurality of electromagnetic coils are arranged, the connection mode of the electromagnetic coils can be converted between the series connection and the parallel connection, conversion of the series connection and the parallel connection of the electromagnetic coils can be achieved through an electromagnetic coils series-parallel connection conversion circuit; and/or a pin-positioning air resistance-buffering device is arranged between the armature and the brake shoe to integrates the pin positioning and air resistance buffering into a whole.

The invention discloses an electromagnet of a built-in inclined plane force-amplifier. The electromagnet of the built-in inclined plane force-amplifier comprises a magnet yoke, an electromagnetic coil arranged inside the magnet yoke, an armature, and a fastening bolt, wherein the fastening bolt penetrates through the magnet yoke, the magnet yoke forms an embedded groove, an inclined plane force-amplifier is arranged inside the embedded groove, the inclined plane force-amplifier comprises a supporting plate which is flexibly sleeved in the fastening bolt, a driven plate which is tightly connected with the fastening bolt, a driving drive inclined sleeve which depends on the magnet yoke to propel, and a sliding body, wherein the driving drive inclined sleeve is fixed on the magnet yoke, the supporting plate is fixed on the armature, the supporting plate is arranged outside corresponding to the driven plate, a gap is reserved between the inner end of the supporting plate and the end portion of the driven plate, the driving drive inclined sleeve is sleeved outside the driven plate, and the inclined plane section of the driving drive inclined sleeve corresponds to a gapped portion of the supporting plate and the driven plate, and therefore the driving drive inclined sleeve, the supporting plate and the driven plate form a region. The sliding body is loaded inside the region, the sliding body contacts the driving drive inclined sleeve, the supporting plate and the driven plate, and at least two planes of three planes which contact the sliding body are inclined planes.

The invention discloses a PON (Passive Optical Network)-based intelligent household control terminal. The PON-based intelligent household control terminal disclosed by the invention comprises a PON CPU (Central Processing Unit), a human-computer interaction module, a data interface, a display module, a communication interface and a wireless network card; the human-computer interaction module is connected with the PON CPU; the display module is connected with the PON CPU by the data interface; the wireless network card is connected with the PON CPU by the communication interface; the wireless network card is connected to WIFI (Wireless Fidelity) controlled equipment in a wireless manner. According to the PON-based intelligent household control terminal, which is disclosed by the invention, the intelligent household control adopts the full WIFI environment; the intelligent household control terminal is wiring-free; a communication manner adopts a standard manner; the bandwidth of the intelligent household control terminal can be suitable for audio and video transmission; the intelligent household control terminal is directly connected to the network; network wiring is reduced; copper cables can be saved.

A multiphase magnetic integration coupling inductor comprises a U-type iron core, a T-type iron core and coils; the magnetic pillars of the T-type iron core are positioned between magnetic pillars of the U-type iron core; an air gap group is formed between the magnetic yoke of the T-type iron core and each magnetic pillar of the U-type iron core; another air gap group is formed between the magnetic yoke of the U-type iron core and each magnetic pillar of the T-type iron core; each magnetic pillar of the U-type iron core are winded by the coil. The advantages are that the multiphase magnetic integration coupling inductor is applied to coupling integration of each phase inductor in an interleaving switch power supply, thus improving symmetry level of each phase inductance parameters, simplifying iron core coupling structure, reducing coil length, saving copper material, reducing coil copper loss, reducing power supply output current and voltage ripples, reducing power supply output filter capacitance, and improving power supply efficiency and dynamic response speed .

The invention relates to an assembled center pillar inductor. The assembled center pillar inductor comprises a closed magnetic-loop magnetic core stack, a framework and windings, wherein the closed magnetic-loop magnetic core stack consists of an assembled center pillar and two side pillar magnets; the assembled center pillar consists of a clamping magnet and an I-shaped supporting magnet; a group of winding is coiled on each winding coiling shaft of the framework respectively; the coiling directions of two adjacent groups of windings are opposite; when the clamping magnet is arranged in a hollow hole of the framework and the supporting magnet is inserted into the hollow hole, a folding arm of the clamping magnet is clamped at both ends and the hollow part of the hollow hole; and the outward end faces of folding arms of the two side pillar magnets are attached to two side surfaces of the assembled center pillar so as to form at least two induction units. The assembled center pillar inductor has the advantages of effectively reducing the height of the winding framework, effectively enhancing an excitation angle of a magnetic loop and improving the structure of the magnetic loop.

This invention relate to a method for manufacturing the coil disk of the induction cooker. Its feature is that: the coil disk is made of copper cladding aluminum wires. The invention of the beneficial effects : (1) it saves copper and greatly reduce production cost, (2) the plasticity of the aluminum wires is better than ones of copper wire, easy molding, (3) the Insulation Resistance and heat tolerance of the coating layer of the aluminum is better, thereby it prolongs its using-life.

The invention discloses a photovoltaic assembly with built-in diodes. The assembly comprises a front glass plate, a solar energy cell array, back plates and a wire box arranged on the back plate, wherein the solar energy cell array comprises multiple series connection solar energy strings. The assembly is characterized in that the diodes are connected between two bypass cell strings, positive and negative electrodes of the diodes are respectively pre-welded with one segment of bus bar, one electrodes are needed to lead out pre-welded longer bus bars connected with the wire box, during assembly lamination, the diodes pre-welded with the bus bars are connected between two bypass cell strings according to polarity, for one ends pre-welded with longer bus bars, relatively extra parts of the longer bus bars are bent to lead outside the assembly and are used for connecting with the positive/negative electrodes of the wire box, positions of the back plate corresponding to the diodes are respectively provided with an opening, and the bus bars after being bent on the diodes are led out from the openings. The assembly is convenient for part maintenance and replacement, and cost is reduced.

The invention relates to the field of cable straps, in particular to a copper plastic composite strap suitable for a telecommunication cable and an optical cable and a copper plastic composite strap preparation method. The copper plastic composite strap is wrapped on the outer surface of the telecommunication cable or the optical cable. The copper plastic composite strap is provided with a red copper layer (1), an adhesive layer (2) and a polyester film layer (3) in sequence. The red copper layer (1), the adhesive layer (2) and the polyester film layer (3) are attached together through bonding and heating to form a composite structure. The tensile strength of the copper plastic composite strap is larger than or equal to 180 MPa. The breakage elongation of the copper plastic composite strap is larger than or equal to 15%. The interlaminar peeling strength between a copper strap and a plastic layer is larger than or equal to 15N/centimeter. The conductivity of the copper plastic composite strap is larger than or equal to 90% of international annealed copper standard (IACS). The breakdown phenomenon does not happen to the single-sided copper plastic composite strap 1kvd.c in one minute.