58results about How to "Same cooling effect" patented technology

A cooling device includes: a cooling fan; a shroud provided at an outer circumferential side of the cooling fan; and a ring having an inner circumferential wall and an outer circumferential wall. The inner circumferential wall is provided on the shroud and adjacent to an outer circumference of the cooling fan. The outer circumferential wall surrounds the inner circumferential wall, and an air-flow-direction downstream side end of the outer circumferential wall is positioned at a further downstream position in an air flow direction than an air-flow-direction downstream side end of the inner circumferential wall. An air-flow-direction downstream side end of an outer circumferential edge of the cooling fan is positioned at a further downstream position in the air flow direction than the air-flow-direction downstream side end of the inner circumferential wall.

A cooling device includes: a cooling fan; a shroud provided at an outer circumferential side of the cooling fan; an inner circumferential wall provided on the shroud and adjacent to the outer circumference of the cooling fan; and an outer circumferential wall provided to surround the inner circumferential wall. An air-flow-direction downstream side end of an outer circumferential edge of the cooling fan is positioned at a further downstream position in an air flow direction than an air-flow-direction downstream side end of the inner circumferential wall. An angle between: an line connecting the air-flow-direction downstream side end of the inner circumferential wall to the air-flow-direction downstream side end of the outer circumferential wall in cross section along the air flow direction of the inner circumferential wall and the outer circumferential wall; and a line orthogonal to the air flow direction, is 9 degrees or more and 45 degrees or less.

A cooling device includes: a cooling fan; a shroud provided at an outer circumferential side of the cooling fan; an inner circumferential wall provided on the shroud and adjacent to the outer circumference of the cooling fan so as to surround the cooling fan; an outer circumferential wall provided to surround the inner circumferential wall. An air-flow-direction downstream side end of the outer circumferential wall is positioned at a further downstream position in an air flow direction than an air-flow-direction downstream side end of the inner circumferential wall. The cooling fan is rotatable within a space provided on a radially inner side of the inner circumferential wall. The air-flow-direction downstream side end of the outer circumferential wall is provided at a further upstream position in the air flow direction than an air-flow-direction downstream side end of the cooling fan.

A cooling device includes: a cooling fan; a shroud provided at an outer circumferential side of the cooling fan; an inner circumferential wall provided on the shroud and adjacent to the outer circumference of the cooling fan; and an outer circumferential wall provided to surround the inner circumferential wall. An air-flow-direction downstream side end of the outer circumferential wall is positioned at a further downstream position in an air flow direction than an air-flow-direction downstream side end of the inner circumferential wall. An air-flow-direction downstream side end of the cooling fan is positioned at a further downstream position than the air-flow-direction downstream side end of the inner circumferential wall. A ratio between a length of the outer circumferential wall and a length of the inner circumferential wall in the air flow direction is 1.07 or more and 1.81 or less, and a width between the outer circumferential wall and the inner circumferential wall is 15 mm or more and 55 mm or less.

The invention belongs to the field of refrigerants, and particularly relates to a refrigerant replacing R-410A and a preparation method thereof. The refrigerant is formed by fully mixing the following raw materials including, by weight, 44-54 parts of propylene, 10-20 parts of iodotrifluoromethane and 30-40 parts of ethyl fluoride. The preparation method of the refrigerant comprises the following steps that S1, the purity of the raw materials are detected to ensure that the purity reaches the refrigerant-grade standard; S2, a cleaning reagent is used for cleaning a pressure vessel; S3, the cleaned pressure vessel is vacuumed; S4, the raw materials which reach the stand are added into the vacuumed pressure vessel according to the proportion of parts by weight and mixed to obtain a mixture; and S5, the mixture in the S4 is sampled, and whether all components in a sample meet the corresponding proportion of the parts by weight or not is detected. By adoption of the refrigerant replacing the R-410A, all original refrigeration equipment do not need to be replaced, the improvement cost is greatly reduced, and the refrigerant is good in energy saving effect and saves energy by 20-25% compared with the original refrigerant R-410A.

A stator for a dynamoelectric machine includes a stator core and a stator coil. The stator coil is made up of wave-shaped electric wires mounted on the stator core. Each of the electric wires has in-slot portions, each of which is received in one of slots of the stator core, and connecting portions each of which is located outside of the slots to connect one adjacent pair of the in-slot portions. Each of the connecting portions includes an apex part that is located axially furthest in the connecting portion from the stator core and includes an oblique section extending obliquely with respect to the radial direction of the stator core. Further, the oblique sections of the electric wires on one side of the stator core in the axial direction of the stator core are oblique in the same direction as those on the other side of the stator core.

The invention provides a cooling structure of a busbar mold. The cooling structure of the busbar mold comprises a mold body. A plurality of forming grooves are linearly formed in the mold body. Cooling devices are arranged below the forming grooves. The cooling structure of the busbar mold is characterized in that the mold body comprises a constant-temperature area, cast welding areas and heat preservation areas. The forming grooves are formed in the cast welding areas. One independent cooling device is correspondingly arranged in each cast welding area. Each cooling device comprises a cooling body which is arranged below the corresponding cast welding area and / or the corresponding heat preservation area, wherein a liquid inlet pipe is arranged on the cooling body in the arrangement direction of the corresponding forming groove, and a water injection nozzle is arranged on the liquid inlet pipe and faces the bottom of the corresponding forming groove; and a backflow groove is further formed in the cooling body, and the backflow groove is lower than the water injection nozzle. According to the cooling structure of the busbar mold, cooling systems independently correspond to the cast welding areas are arranged, so that cooling consistency of the different cast welding areas is ensured while the cooling efficiency is improved, constant-temperature control of the mold is facilitated, and thus the cast welding effect is improved.

The invention relates to an electric vehicle annular forced air-cooled heat dissipation parallel battery module and application thereof. The electric vehicle annular forced air-cooled heat dissipation parallel battery module comprises a battery module box body, a battery module box cover and a battery module core; the battery module box body is internally provided with a first air duct wall and a second air duct wall; ventilation holes are formed in the first air duct wall and the second air duct wall respectively; the battery module core is arranged between the first air duct wall and the second air duct wall; a first air duct is arranged between the first air duct wall and the inner side wall of the battery module box body; the inner side wall of the second air duct wall is a second air duct; the top end of the second air duct is connected with the battery module box cover; the bottom end of the second air duct is provided with a heat dissipation fan; and a plurality of standard electrical cores are arranged on the battery module core. The electric vehicle annular forced air-cooled heat dissipation parallel battery module changes the traditional battery module layout mode, adopts a novel layout mode to carry out mounting, improves the forced air cooling effect and ensures each single standard electrical core to have the same heat dissipation effect, so that the purpose of effectively dissipating heat is reached, the problem of uneven heat dissipation of the battery module is also solved, and normal running of the battery module is effectively guaranteed.

The invention discloses an engine cooling system, which is characterized in that: a cooling water distribution pipe is installed on the engine block, and the distribution pipe has a plurality of passages, and one passage corresponds to one cylinder. The cooling water enters the engine block through each channel to cool the engine, and then the coolant enters the cylinder head through the cylinder block to cool the engine cylinder head, and then the coolant returns to the water collector through the cylinder head, and then returns to the thermostat. Eventually back to the water pump. The present invention installs a water distribution pipe under the ordinary engine cylinder, so that each cylinder corresponds to each channel of a water distribution pipe, so that the water intake of each cylinder is the same, and the water intake pressure and water intake speed are the same. In this way, the cooling effect of all the cylinders is guaranteed to be the same, which improves the cooling effect of the engine, and the uniformity of the coolant distribution in the engine block is also improved. The fuel economy of the engine has been improved, and the emission of the engine has been optimized.

A cooling device includes: a cooling fan; a shroud provided at an outer circumferential side of the cooling fan; an inner circumferential wall provided on the shroud and adjacent to the outer circumference of the cooling fan so as to surround the cooling fan; an outer circumferential wall provided to surround the inner circumferential wall. An air-flow-direction downstream side end of the outer circumferential wall is positioned at a further downstream position in an air flow direction than an air-flow-direction downstream side end of the inner circumferential wall. The cooling fan is rotatable within a space provided on a radially inner side of the inner circumferential wall. The air-flow-direction downstream side end of the outer circumferential wall is provided at a further upstream position in the air flow direction than an air-flow-direction downstream side end of the cooling fan.

The invention discloses a furnace slow-cooling area structure capable of shrinking cross-sectional temperature differences, which comprises a slow-cooling chamber, a plurality of conveying rollers, a large amount of heat-exchanging pipes and an exhausting mechanism, wherein the exhausting mechanism is communicated with the heat-exchanging pipes, the conveying rollers are sequentially arranged along the length direction of the slow-cooling chamber and are placed at the middle part of the slow-cooling chamber, the heat-exchanging pipes are arranged along the longitudinal direction of the slow-cooling chamber, each heat-exchanging pipe is a U-shaped steel pipe with two open ends, one end of each heat-exchanging pipe is communicated with a workshop, and the other end of each heat-exchanging pipe is communicated with the exhausting mechanism. The furnace slow-cooling area structure has the beneficial effects that the basic sameness of the temperatures of all points on the same cross section is realized; because a wind inlet and a wind outlet are positioned at different positions on the same section, the cooling effects can tend towards consistency under the conditions that the diameters of branched pipes are the same and the flow speeds of hot wind are the same, the cross-sectional temperature difference of a furnace-cooling passage is shrunk, the sameness of the cooling speeds of a product at the slow-cooling stage can be ensured, and the defects of the product caused by cooling temperature differences are avoided.

The embodiment of the invention provides a motor controller shell, a motor controller and a vehicle, and belongs to the technical field of controllers. Comprising a plurality of device placing grooves which are at least used for placing a first device and a second device; wherein a cooling part is arranged between the first device and the second device; when cooling liquid circulates in the cooling part, the cooling part is used for cooling the first device and the second device at the same time. By using the motor controller shell, the motor controller and the vehicle provided by the invention, the cooling effect of the cooling component on the second device can be improved.