71results about How to "Reduce load (power" patented technology

The embodiment of the invention discloses an automatic dimming emergency lamp. The automatic dimming emergency lamp comprises an emergency power supply, a boost constant current module, a power supply switching module and a field effect transistor Q2, a load of the boost constant current module comprises a first load resistor and a second load resistor, two ends of the first load resistor are connected with ground and one end of the second load resistor respectively, the other end of the second load resistor is connected with a source electrode of the field effect transistor Q2, a drain electrode of the field effect transistor Q2 is grounded, a grid electrode of the field effect transistor Q2 is connected with a first input end of the power supply switching module, the first input end of the power supply switching module is connected with a mains supply conversion low power supply, a second input end of the power supply switching module is connected with the emergency power supply, an output end of the power supply switching module is connected with the boost constant current module, the power supply switching module is used for controlling the boost constant current module to access to the mains supply conversion low power supply when a mains supply is normal, the field effect transistor Q2 is connected, when the mains supply is cut off, the power supply is switched to the emergency power supply, and the field effect transistor is disconnected. According to the automatic dimming emergency lamp, the access or cutting off of the second load resistor is controlled through connecting and disconnecting of the Q2, so that the illumination intensity of the emergency lamp is changed, and the illumination time is prolonged.

Provided is a storage device comprising: a display cabinet capable of dividing the interior into a plurality of storage areas; supply duct; exhaust duct connected to an exhaust outlet capable of drawing air from the storage area. With this storage device, air for conditioning such as cooling or heating is in a state of circulating in each storage area, and environmental conditions can be efficiently adjusted in a unit storage area. Therefore, the storage device provided with the open display cabinet can provide a storage device with a high storage capacity that can omit the air curtain covering the entire open surface.

The invention discloses a large-scale upper oil tank hydraulic power unit. The large-scale upper oil tank hydraulic power unit comprises a machine frame, an oil pump motor assembly and an oil tank; the oil pump motor assembly is arranged on a mounting platform of the machine frame, and the oil tank is arranged above the oil pump motor assembly through a support assembly of the machine frame so as to form an upper oil tank. The design of the upper oil tank is adopted by the hydraulic power unit, and the hydraulic power unit has a compact structure, the advantages of low shaking degree and stability in working of a side oil tank hydraulic power unit and the advantages of small occupied space of a lower oil tank hydraulic power unit; the oil tank is arranged on the upper part to bring convenience to the oil absorption of the oil pump; and due to the action of gravity, under the condition of not adding compressed air on the oil tank, the oil pump can absorb oil easily, and the load power of the oil pump can be reduced.

A switching power supply circuit which can achieve enhancement of the power conversion efficiency is disclosed. In a composite resonance converter wherein a current resonance type converter constructed on the primary side and a primary side partial voltage resonance circuit are combined, a primary side DC input rectification circuit is formed from a full-wave rectification circuit. Further, a gap G of the core of an insulating converter transformer (PIT) is set to 2.0 mm to set the coupling coefficient of the primary winding (N1) and the secondary winding (N2) to approximately 0.81 of a loose coupling state. Further, the numbers of turns of the primary winding (N1) and the secondary winding (N2) are selected so that the induced voltage per one turn of the secondary winding (N2) is 2 V or less. With the configuration, if the leakage inductance (L1l) of the primary winding (N1) and the leakage inductance (L2l) of the secondary winding (N2) are increased, then reduction of the primary side current (I1) in a light load condition can be achieved and the switching output current (IQ1), (IQ2) can be reduced.

In the vehicle air conditioning system according to the present invention, the thin condenser 2 of the condensing part part 10 is installed on the flat roof of the vehicle (such as a bus) and slopes downward from the front to the rear of the vehicle, and the condenser fan 4 is directly arranged Above the condenser, the air inlet 51 of the condenser is arranged in front of the condenser and the air outlet 52 is arranged above the condenser.

The invention discloses a controllable load demand response menu pricing method considering user risk preferences. By mining different risk preference characteristics of electric power users to a controllable load demand response, and taking demands of controllable load users as a guide, demand risk preference characteristics of different users are considered and user types are divided; and by taking a demand response electricity price and a load reduction quantity as menu options, a controllable load demand response menu pricing model taking minimum total cost of system power supply as an objective function is built, and the model is subjected to optimization solving to obtain an optimal controllable load demand response menu for the electric power users to select. According to the pricing method, the users with different risk preferences can be effectively distinguished, so that the autonomous selectivity of the users to the electricity price is improved, the positivity of user participation is enhanced, and optimization and configuration of electric power resources are easy to realize.

The invention provides a system and a method for reducing power consumption of a dry pump. The system for reducing the power consumption of the dry pump is additionally provided with an electricity saving module (4) connected with the dry pump (2), wherein the electricity saving module (4) comprises a reducing valve (41); an admission end (A) of the reducing valve (41) is communicated with an outlet end (C) of an exhaust line (27) of the dry pump (2); and a vent end (B) of the reducing valve (41) is communicated with atmosphere. When the dry pump (2) is in an idling state, the reducing valve (41) can reduce pressure at the outlet end (C) of the exhaust line (27) to result in vacuum; negative pressure is kept in the exhaust line (27); compared with the prior art, the pressure of a final stage pump cavity (21) of the dry pump (2) is reduced to the negative pressure instead of atmospheric pressure; the pressure that the final stage pump cavity (21) is required to reach is decreased; rotating speeds of corresponding rotors (23) in pump cavities (21) at all stages are reduced; and the load power of the dry pump (2) is reduced, so that the power consumption of the dry pump can be reduced effectively.

The invention discloses a stepless variable power inductive ballast which is arranged between a load and a power supply, and comprises a constant power control device, a stepless varindor and a forward-reverse rotation motor; the constant power control device is used for acquiring load power, compares the load power with set power, outputs a control signal according to a comparison result, and thus drives the forward rotation and the number of rounds of forward rotation or the reverse rotation and the number of rounds of reverse rotation of the forward / reverse rotation motor; the stepless varindor comprises a fixed iron core and a moving iron core, and the move-in quantity of the moving iron core corresponding to the fixed iron core is adjusted through the forward / reverse rotation adjustment of a lead screw, so that the inductance which is output to the load is changed and the load power is controlled; the power input end of the forward / reverse rotation motor is electrically connected with the output end of the constant power control device; and a pin shaft (3) of the forward / reverse rotation motor is fixedly connected with the lead screw. The stepless variable power inductive ballast is linear and stepless, has no instantaneous power-off and arcing phenomena, and has the advantages that the service life of a lamp tube is prolonged, the energy-saving efficiency is improved and the maintenance cost is low.

The invention discloses a sieving and crushing integrated machine. The sieving and crushing integrated machine comprises a machine housing, a sieving and distributing machine (1) arranged at an upper part of the machine housing, and a sieving and crushing machine (35) arranged at a lower part of the machine housing, wherein the sieving and distributing machine (1) comprises a charge hole (2), an arc-shaped distributing plate (6), an iron remover (11), a transmission device, a flange type sieve shaft (4) and a filter sieve shaft (5); the sieving and crushing machine (35) comprises a main rotor, an arc-shaped counterattack sieve roller set, a particle size adjusting device and a transmission device; and a charge hole (36) of the sieving and crushing machine is positioned below a discharge hole (9) of the sieving and distributing machine. The sieving and crushing integrated machine has the following creative effects: the original two-stage crushing and one-stage sieving mode is changed to be a one-stage sieving and one-stage crushing mode, so that a system structure is simplified; problems of material adhesion and blockage, high iron content, low sieving and crushing efficiency, high power consumption, non-uniform ring hammer wear, unadjustable particle size, high difficulty in overhauling and replacement of spare parts, inconvenience in operation and the like are solved; and the sieving and crushing integrated machine is a major innovation of sieving and crushing equipment technology.

A wavelength conversion member includes a substrate, a phosphor layer, and a ventilated blade. The substrate is configured to rotate based on an axis. The phosphor layer is disposed on the substrate. The ventilated blade is disposed on the substrate and has a pore density between 10 ppi and 500 ppi or a volume porosity between 5% and 95%.

The present invention relates to an apparatus for controlling power of mufti core processor, which includes a power control device by core unit, controls a plurality of power-related parameters by core unit, and thus decreases a load for power management and enables realization of a low power multi core processor through minute power control. The apparatus includes a processor core adapted to provide code information on an application program for executing to a power regulation controller, and a power regulation controller adapted to receive the code information on the application program from the processor core to determine an operation frequency of the processor core, set an operation voltage, a clock-gating value and a power-gating value according to the determined operation frequency, and provide the set values and voltage to the processor core.

A wavelength conversion element comprises a substrate, a fluorescent powder layer and a through-hole blade. The substrate is configured to rotate based on an axis. The fluorescent powder layer is arranged on the substrate. The through-hole blade is disposed on the substrate, and has a pore density of between 10 ppi and 500 ppi, or has a volume porosity of between 5% and 95%.

The invention relates to an AC-DC lateral-light source light-emitting plate, comprising light guide plate and light source, where the back of the light guide plate is provided with reflecting film, and characterized in that: it also comprises a 'U'-shaped elastic insulating bar, where two sides of the lower part of the insulating bar is provided with salient edges on the inner wall, extending in the direction of the insulating bar; the light source comprises LEDs welded on a circuit board at certain intervals; the circuit board is inserted below the salient edges; the polished end surface of the light guide plate is inserted above the salient edges; the back of the light guide plate is provided with netlike refracting grooves formed by 3D laser carving, where the further the refracting groove is apart from the light source, the larger the groove diameter is and the larger the space is; the power supply input end of the light source is connected with a switching power supply. The invention can be widely applied to highways, city traffic marks, etc.