30results about How to "Guaranteed cooling speed" patented technology

The invention relates to the technical field of household electric appliances, in particular to a fan rotation speed control method, a control system and a water tank. The method comprises the following steps: receiving fan starting request; judging needs, on refrigerating capacity and air quantity, of a refrigerator compartment, and selecting preset fan target voltage according to the needs, on refrigerating capacity and air quantity, of the refrigerator compartment; and regulating current working voltage of a fan to be fan target voltage. According to the fan rotation speed control method, need conditions, on refrigerating capacity and air quantity, of the refrigerator compartment are taken into consideration, different fan target voltage is selected according to different refrigerating capacity and air quantity needs, and fan rotation speed is controlled by regulating working voltage of the fan, so that the control method is simple, a cooling rate can be improved, refrigerator starting-stopping time can be optimized, and the problem that part of cooling capacity of a compressor is wasted due to the fact that fixed fan rotation speed is adopted for supplying air in the prior art is solved, and therefore, integral power consumption of a refrigerator system is reduced.

The invention provides a control method, a control system and a refrigerator. The control method is used for controlling the rotation speed of a draught fan of the refrigerator, and includes the steps that according to a received draught fan start request, whether current environment temperature is larger than or equal to a first preset temperature value is judged; a rotation speed threshold range of current compressor rotation speed of the refrigerator is determined according to a judgment result, and draught fan work voltage of the refrigerator is adjusted according to the rotation speed threshold range so as to determine the rotation speed of the draught fan. By means of the technical scheme, the rotation speed of the draught fan can be reasonably adjusted through cooperation of the environment temperature, the compressor rotation speed and refrigeration requirements of chambers in the refrigerator, so that start and stop time of a compressor is optimized and overall energy consumption of a refrigerator system is reduced while the cooling speed is guaranteed.

The invention relates to the technical field of refrigerators, in particular to a control method for a refrigerator. The control method for the refrigerator comprises the steps that different control modes are operated according to different environment temperatures, refrigeration of a refrigerating chamber is conducted preferably when the environment temperature is smaller than a set environment temperature value as well as when the environment temperature is not smaller than the set environment temperature value and the temperature in a freezing chamber is smaller than a set freezing temperature value, and refrigeration of a temperature-variable chamber is conducted after refrigeration of the refrigerating chamber is completed; and whether refrigeration of the refrigerating chamber is needed or not is monitored while refrigeration of the temperature-variable chamber is conducted, and a throttling mechanism of the freezing chamber is controlled to be connected with a freezing refrigeration circuit when both refrigeration of the refrigerating chamber and refrigeration of the temperature-variable chamber are not needed, so that independent refrigeration of the freezing chamber is conducted. When the environment temperature is larger than the set environment temperature value and the temperature in the freezing chamber is not smaller than the set freezing temperature value, refrigeration of the refrigerating chamber is conducted after the refrigerator operates in the initial operating mode. According to the control method for the refrigerator, a compressor operates under a small load condition, so that damage caused by liquid impact is avoided, the refrigerating speeds of all the chambers are guaranteed, and the system stability is improved.

An axial big load permanent magnetism direct driving motor comprises a shell, a rotor, a stator, a bearing inner cap, an end closure, a rotating shaft, a thrust bearing, an upper steady bearing, and a large aspect ration end closure. The rotor adopts a permanent magnetism structure. The motor is characterized in that the bearing end of the rotating shaft is provided with the large aspect ration end closure; the diameter of the large aspect ration end closure is same as the outside diameter of the shell of the motor; the thrust bearing adopts a spherical roller thrust bearing which is arranged between the rotating shaft of the motor and a bearing block of the large aspect ration end closure; the lower part of the spherical roller thrust bearing is added with a lower steady bearing to be arranged on the end of the rotating shaft and embedded in the large aspect ration end closure; a bearing housing is formed between the lower steady bearing and the spherical roller thrust bearing; the inner cap of the bearing is above the spherical roller thrust bearing and is arranged on the upper part of the large aspect ration end closure; an oil chamber is formed between the inner cap of the bearing and the large aspect ration end closure and is provided with liquid lubricant; the bearing block of the large aspect ration end closure between the bearing housing and the oil chamber is provided with a plurality of oil passage through holes.

The invention provides a heat dissipation device for a new energy motor. A spiral cooling water pipe is arranged inside a double-layer motor housing. To the top of the cooling tower, the water inlet pipe is connected with the bottom of the cooling water tower, and a circulating water pump is arranged on the water inlet pipe; the bottom end of the water outlet of the water outlet pipe in the cooling water tower is provided with a number of horizontally extending partitions with holes, and the cooling water tower There are cooling fins evenly distributed on the outside; the output end of the solar photovoltaic panel is connected to the electrical input end of the storage device, and the electrical output end of the storage device is connected to the electrical input end of the circulating water pump. The invention has the beneficial effects of fast heat dissipation, energy saving and environmental protection.

The invention discloses an energy-saving heat-preservation oil tank. The energy-saving heat-preservation oil tank comprises a shell, a feeding port, a tank body, a heating plate, a control cabinet, a refrigerating plate, supporting legs, a discharging port, a control switch, a button, a controller and a display screen, wherein the feeding port is formed right above the shell, the feed port is fixed on the shell through a screw, the discharging port is fixed at the bottom of the inner side of the shell through a screw, an electromagnetic valve is arranged at the discharging port, the tank body is arranged below the feeding port, the tank body is fixed inside the shell through a screw, a crude oil is poured into a tank body device, the tank body device is electrified, the controller, the control cabinet and the temperature sensor are started by the control cabinet, and the heating plate or the refrigerating plate is started; and the electromagnetic valve is arranged at the discharging port, buttons are connected with the electromagnetic valve through cables, and the control cabinet is fixed on the shell through a screw, the temperature sensor is fixed to the right side of the inner side of the shell through a screw. The energy-saving heat-preservation oil tank is used for controlling the switch, the buttons, the display screen and the temperature sensor in real time through the controller, the contact area is designed through the circular truncated cone at the bottom of the tank body, the heat energy consumption speed of the crude oil storage tank is reduced, and the energy-saving and heat-preserving effects are achieved.

The invention relates to an aluminum special-shaped part. The aluminum special-shaped part is characterized by comprising a special-shaped part body, a circular through hole is formed in the middle end of the special-shaped part body, the circular through hole is a heat dissipation channel, the hole diameter of the circular through hole is gradually reduced from the middle end to the left end andthe right end, first installation grooves are correspondingly formed in the upper end and the lower end of the special-shaped part body, and second installation grooves are correspondingly formed in the left end and the right end of the special-shaped part body. According to the aluminum special-shaped part, the upper end and the lower end of the special-shaped part body are correspondingly provided with the first installation grooves and the second installation grooves are correspondingly formed in the left end and the right end of the special-shaped part body, and when the special-shaped part body and a rubber part are connected and installed, an operator can conveniently performs the installation; and the circular through hole is formed in the middle end of the special-shaped part body,so that the effects that during use of the special-shaped part body in an automobile, the special-shaped part body is prevented from being damaged by a large amount of heat energy in the automobile,and the service life is prolonged are effectively guaranteed.

The invention discloses a long-row lamp, which comprises a mounting base, a circuit board, LED lamp beads, a radiating assembly, a mask and a silicon film, wherein the LED lamp beads are arranged on the circuit board; the circuit board is arranged at the upper end of the mounting base through the silicon film; the mask is covered and connected with the upper end of the mounting base; the radiatingassembly is arranged at the lower end of the mounting base; the radiating assembly is formed by splicing a plurality of radiating fins;the long-row lamp transmits heat through radiating strips between the radiating fins; the design of the radiating strips not only ensures the circulation of air, but also ensures the radiating area, so that the product achieves the best heat conduction and radiation effect; according to the radiation requirement of the product, the product can be fixedly connected through the overlapping combination of the radiating fins and screws, so that the structure is simple, the installation is convenient, and the damaged radiating fins are replaced conveniently.

The invention relates to a novel electromagnetic induction heating device which comprises a shell, a water outlet located above the shell and a water inlet located below the shell, a support plate isarranged on the lower side of the interior of the shell, the support plate and the base plate of the shell form a sealing cavity for accommodating a power supply part, and the power supply part is connected with an electromagnetic induction coil formed by a square copper alloy coil above the support plate to conduct electricity and generate heat. The square copper alloy coil increases the efficiency of electromagnetic induction to induce water movement, namely increases the rate of warming; tested parameters show that the heat generated by a round copper coil is below 95%, and heat energy generated by the square copper alloy coil is up to 99.6% in effect; the power supply stops automatically when the water temperature reached the set temperature, the water temperature begins to drop gradually normally, however the water continuous to get the transfer temperature due to the action of research and development of a heat storage device, and rate of temperature dropping is sustained while the temperature rises in a certain range; the heat generated by 30% of electric energy is equivalently achieved, and 30% of electricity energy is saved.

The invention relates to an ancient irregular cold heading part which is characterized by comprising an irregular cold heading part body, wherein the irregular cold heading part body takes the shape of a column; an annular convex ring is arranged at the middle end of the irregular cold heading part body; the annular convex ring comprises two side walls and an upper wall; connecting parts of the two side walls and the upper wall are arc-shaped surfaces; connecting parts of the two side walls and the irregular cold heading part body are arc-shaped surfaces. The ancient irregular cold heading part has the beneficial effects that the annular convex rings and circular through holes are formed in the ancient irregular cold heading part, the connecting parts of the two side walls and the upper wall are arc-shaped surfaces, the connecting parts of the two side walls and the ancient irregular cold heading part are arc-shaped surfaces, the left end and the right end that are matched with the circular through holes at the edge of the irregular cold heading part body are inclined surfaces respectively. When being connected and mounted with a rubber part, a guide function is achieved, convenience in mounting is achieved, and meanwhile, the rubber part can be prevented from being scratched.

The invention provides a cooling system for a refrigerator and the refrigerator. The cooling system for the refrigerator comprises a compressor, a condenser, a throttling device, a flow dividing three-way valve and an evaporator component. A first end of the condenser is connected to an outlet of the compressor. A first end of the throttling device is connected to a second end of the condenser. An inlet of the flow dividing three-way valve is connected to a second end of the throttling device. The evaporator component comprises a first evaporator and a second evaporator. A first end of the first evaporator is connected to a first outlet of the flow dividing three-way valve. A second outlet of the flow dividing three-way valve and a second end of the first evaporator are connected to first ends of the second evaporator through a flow combining three-way valve respectively. A second end of the second evaporator is connected to an inlet of the compressor. According to the technical scheme, cooling speeds of different cavities can be guaranteed, large difference between the cooling speeds of different cavities is avoided, and the using effect of the refrigerator cannot be affected.

The invention provides a PCB of a power circuit for an automobile instrument and a design method of the PCB and belongs to the design field of the PCBs of the power circuits for the automobile instruments. The PCB is used for solving the problems of unstable voltage output due to heating of the power circuit for the automobile instrument, and low working efficiency and inconvenience for the production of the production line due to the fixation of a cooling fin, a screw and a nut. The PCB of the power circuit for the automobile instrument is characterized in that the bonding pad of each heating element is covered with a large-area top copper coating. According to the design method of the PCB of the power circuit for the automobile instrument, the large-area top copper coating is designed on the bonding pad of each heating element. The top copper coating is advantageous for quickly dissipating heat and guaranteeing stable voltage output. The PCB and the design method are suitable for the production of the PCBs of the power circuits for the automobile instruments.

The invention relates to a methanol cooler. The methanol cooler comprises a barrel and supporting legs, wherein a first pipe box is arranged at one end of the barrel; a second pipe box is arranged atthe other end of the barrel; the first pipe box and the second pipe box are used for sealing two ends of the barrel respectively; the supporting legs are arranged at the lower end of the barrel; a water outlet is formed in the first pipe box; a water inlet is formed in the lower portion of the second pipe box; a liquid discharging opening is formed in the barrel; a liquid inlet is formed in the lower portion of the barrel; a plurality of baffle plates are arranged in the barrel; a plurality of heat exchange pipes are arranged in the barrel; two first sliding grooves are formed in the first pipe box; a first sliding plate is arranged between the two first sliding grooves; the first sliding plate can be used for blocking the heat exchange pipes; two second sliding grooves are formed in the first pipe box; a second sliding plate is arranged between the two second sliding grooves; the second sliding plate can be used for blocking the heat exchange pipes. Compared with the prior art, the methanol cooler has the advantages that the water flow speed of cooling water can be guaranteed and the heat dissipation efficiency of methanol is improved; and warm water also can be prevented from flowing back.

The invention discloses a thermal electromagnetic refrigeration component and a preparation method thereof, the preparation method comprises the steps of preparation of a thermal electromagnetic block material, seed processing and cutting, seed surface treatment and device assembly integration, and the thermal electromagnetic refrigeration component comprises an electrode block, and an n-type thermal electromagnetic refrigeration arm and a p-type thermal electromagnetic refrigeration arm which are symmetrically connected to one side of the electrode block. According to the shape characteristics of the thermal electromagnetic all-solid-state refrigeration component, the n-shaped thermal electromagnetic component and the integrated manufacturing method thereof are developed, the method can efficiently achieve processing and manufacturing of the thermal electromagnetic all-solid-state refrigeration component, and the method has the advantages of being high in yield, easy to operate, capable of achieving batch manufacturing and the like; by designing and optimizing the composition and the structure of the thermal electromagnetic block material, the magnetothermal effect heat dissipation speed of the heat dissipation end of the obtained device can be effectively ensured, and the thermal resistance of the magnetothermal effect is effectively reduced; and technical support can be provided for high-performance thermal electromagnetic refrigeration components and preparation thereof.

The invention discloses a stroboscopic lamp and an assembly method thereof. The stroboscopic lamp includes an installation base, a circuit board, an LED lamp bead, a heat dissipation assembly, a coverand a silicon film. The LED lamp bead is arranged on the circuit board, the circuit board is arranged at the upper end of the installation base through the silicone film, the cover covers and is connected with the upper end of the installation base, the heat dissipation assembly is arranged at the upper end of the installation base, and the heat dissipation assembly is formed by splicing severalcooling fins. According to the provided stroboscopic lamp, heat conduction is achieved through heat dissipation convex points between the cooling fins, the design of the heat dissipation convex pointsensures air circulation and the heat dissipation area, and thus the product can achieve the optimal heat conduction and heat dissipation effects. According to the heat dissipation requirement of theproduct, the product is combined by overlapping the cooling fins and fixedly connected through screws, in this way, the structure is simple, installation is convenient, and damaged cooling fins are easily replaced.