48results about How to "Reduce working temperature rise" patented technology

The invention relates to the electric field, in particular to a circumferential radial multipath oil cooling system for a high-speed motor. An oil inlet which is connected with an oil inlet channel of the oil cooling system is formed in the axial middle of a stator frame. Axial cooling passages are formed at positions at certain distance from an excircle of each stator yoke iron core. Each stator yoke iron core is provided with circumferential arc cooling passages. Each stator yoke iron core is provided with radial cooling passages. End circumferential arc cooling passages are formed at two ends of each stator yoke iron core. Comb-shaped guide plates are disposed at two ends of each stator yoke iron core. The circumferential radial multipath oil cooling system has the advantages that different cooling passages combine a three-dimensional cooling path network, working temperature rising of the high-speed motor is lowered effectively, system stability of the motor is increased, axial temperature difference of a rotor is reduced evidently, and influence, caused by unbalanced heat stress distribution, on the motor is weakened.

The present invention discloses an electrical push device, comprising a motor (1), a housing (2), and an axially movable push rod (3) provided in the housing (2). A lead screw (4) whose helix rise angle is larger than the locking angle is provided in the push rod (3). A screw nut (5) is provided in the inner end of the push rod (3), and the screw nut and the lead screw (4) constitute a screw pair. The inner segment of the lead screw is provided with a supporting bearing (8). The inner end of the lead screw (4) is connected with the shaft of the motor (1). The electrical push device includes an electromagnet (6) and a brake pair (7). A spring (6b) acting on the moving core (6a) of the electromagnet (6) is provided in the stationary core (6c) of the electromagnet (6). The brake pair (7) includes a rotating brake disc (7a) and a translational movement brake disc (7b). The rotating brake disc (7a) is connected with the shaft of the motor (1). The translational movement brake disc (7b) is connected with the moving core (6a) of the electromagnet (6) and axially moves in a straight line along with the moving core (6a).

The invention relates to an intelligent controller of a frame circuit breaker with high reliability and security and low production cost. The intelligent controller of the frame circuit breaker comprises a microcontroller, a current signal conditioning module connected with the microcontroller, a voltage signal conditioning module, a transformer off-line detection module, a frequency detection module, a keyboard, a display module, an execution mechanism driving module and a relay output module, wherein the current signal conditioning module and the voltage signal conditioning module are connected with the output ends of a current transformer and a voltage transformer respectively. The intelligent controller of the frame circuit breaker realizes the functions realized by hardware in like products by using a digital method, greatly simplifies circuit hardware, and reduces the number of components so as to improve the reliability of the system and reduce the production cost. In the design aspect of a power supply circuit, the adoption of a DC/DC voltage-stabilizing circuit with hysteresis property remarkably improves the efficiency of the power supply so as to obviously reduce the temperature rise of a product.

The present invention provides a motor dual-bearing structure with a dual-lubricating system. The motor dual-bearing structure is characterized in that an inner bearing, a grease regulator and an outer bearing sleeve on a rotating shaft, the grease regulator is located between the inner bearing and the outer bearing, an outer bearing chamber sleeves the outer bearing, and an inner bearing chamber sleeves the inner bearing; the end parts of the inner bearing and the inner bearing chamber are equipped with the inner bearing covers, and an inner oil seal is arranged between the inner bearing covers and the rotating shaft; the end parts of the outer bearing and the outer bearing chamber are equipped with the outer bearing covers, and an outer oil seal is arranged between the outer bearing covers and the rotating shaft; the inner bearing chamber, the inner bearing covers, the inner oil seal and the inner bearing form an inner grease storage cavity, and an inner grease injection channel is arranged inside the outer bearing chamber; the outer bearing chamber, the outer bearing covers, the outer oil seal and the outer bearing form an outer grease storage cavity, and an outer grease injection channel is arranged in the outer bearing chamber; the inner bearing chamber, the inner bearing and the grease regulator form an inner grease discharging cavity, and the outer bearing chamber, the outer bearing and the grease regulator form an outer grease discharging cavity; the grease discharging holes are arranged at the lateral bottom of the outer bearing chamber and are communicated with the inner grease discharging cavity and the outer grease discharging cavity separately.

The invention discloses an organic light-emitting diode and a preparation method thereof. The organic light-emitting diode comprises an anode, a cathode and an organic electroluminescence unit clamped between the anode and the cathode; and the cathode is made of a metal material, the cathode is provided with a metal-insulator-metal plasma nano waveguide filter reflector, and light, emitted to the cathode, of the organic electroluminescence unit reversely irradiates to the anode direction. The preparation method of the organic light-emitting diode is used to manufacture the organic light-emitting diode, and to prepare the metal-insulator-metal plasma nano waveguide filter reflector on the cathode of the organic light-emitting diode through adoption of a nano imprint method. The light irradiated to the cathode is reflected to the anode direction through the metal-insulator-metal plasma nano waveguide filter reflector, light-extraction efficiency of the organic light-emitting diode is improved, a work temperature rise is reduced at the same time, and a working current is improved.

The invention discloses an ultra-rapid recovered diode, the insulating shell of which is provided with a diode chip; the invention is characterized in that: the cathode of the diode chip is welded on an insulating plate and a copper bottom plate sequentially after being welded on a copper electrode plate, and the anode thereof is conducted out by a conductive strip; the cooper electrode plate is conducted out by the cathode conductive strip. The ultra-rapid recovered diode of the invention, which adopts the module-type encapsulating structure, has the advantages of freely combining two or more chips by common-cathode connection according to the need of the circuit structure, increasing the working electric flow, ensuring the short time of the reverse-recovery, and facilitating the installation owing to the insulating bottom plate. Meanwhile, the invention has compact structure, can reduce circuit connection and improve operation security, and the copper bottom plate can be both a heat conduction component and a heat dissipation component, which can lower working temperature-rising, and increase working electric flow.

The invention provides an oil-oil lubrication design method for a high-speed electric spindle rolling bearing, belonging to the technical field of rolling bearing cooling and lubrication. The design technology includes the following steps: 1, the configuration design of the oil-gas lubrication system of the high-speed electric spindle rolling bearing; 2, structural design of the oil-gas nozzle ofthe high-speed rolling bear; 3, designing the oil and gas parameters of the high-speed roll bearing. The design technology puts forward a basic configuration scheme of oil-air lubrication system, andprovides a technical method for structural design of oil-air nozzle and selection of oil-air parameters. The oil-oil lubrication design technology of the high-speed electric spindle rolling bearing provided by the invention can effectively improve the lubrication effect of the oil-oil lubrication system of the high-speed electric spindle rolling bearing, greatly reduce the working temperature riseof the high-speed electric spindle rolling bearing, and prolong the service life of the high-speed electric spindle rolling bearing.

The invention discloses a stacking-type lithium battery system. The stacking-type lithium battery system comprises a plurality of lithium battery units which are connected in parallel; each lithium battery unit is formed by serial connection of a plurality of lithium battery modules with functions of current balancing, backflow protection, shirt circuit protection, temperature protection as well as signal transmission; each lithium battery unit is respectively connected with a controller by a corresponding magnetic maintaining relay. According to the stacking-type lithium battery system provided by the invention, not only is volume small and peripheral control circuit simple, but also the operation is stable and reliable, the discharge capacity resistance is high, and the existing cost can be directly reduced by more than 40%. According to the lithium battery system, lithium battery modules with required amount can be connected in series and parallel within a certain range so as to achieve a lithium battery system with different voltages and capacities, so that the lithium battery is applied simply, the traditional and complex using mode of the lithium battery pack can be overturned completely, and the stacking-type lithium battery system is extremely important in the application fields of electric tools, electric bicycles, electric mobiles and minitype energy storage and the like.

The invention provides lubricating oil for engineering machinery and a preparation method thereof. The lubricating oil is prepared from the following components: modified calcium carbonate, modified titanium dioxide, modified nano copper powder, an ethanol solution, linseed oil, polyurethane, a natural gum extract, paraffin, basic oil, a dispersing agent, a viscosity index improver, an antioxidant, polyalcohol, a defoaming agent, an extreme pressure antiwear agent and an oiliness agent. The lubricating oil prepared by the preparation method provided by the invention can substantially reduce the friction power consumption and wear of the engineering machinery and heavy machinery equipment; meanwhile, the working temperature rise of the equipment is obviously reduced; pollution of waste andleaking engine oil to the environment is relieved; the consumption of the lubricating oil is reduced; nonrenewable petroleum resources are saved.

The invention relates to a thin-film capacitor element with a middle heat dissipation through hole structure, which comprises a capacitor element core and a shell for accommodating the capacitor element core, a central through hole is formed in the shell, and a core rod through hole in the capacitor element core is communicated with the central through hole, so that part of heat generated when the capacitor element core works is diffused out through the central through hole. The capacitor element with the radial middle through hole has good natural ventilation and heat dissipation capability, so that the working temperature rise of the capacitor element is obviously reduced, the possibility of thermal stress and thermal damage is greatly reduced, the service life of the capacitor element is prolonged, and the cost of enterprises and society is reduced under lower enterprise cost and social cost. Enterprises and society are benefited at the same time through improvement of product quality and service life.