20results about How to "Increase the effective cooling area" patented technology

The invention provides a high-power box type multifunctional composite antenna thermal control system which comprises a box type composite antenna, a high-power single machine, a waveguide assembly and a graphite film. The box type composite antenna comprises a heat dissipation box body, two sets of high-power single machines are installed on the inner side of the heat dissipation box body through heat expansion plates respectively, a graphite film is pasted on any high-power single machine and extends to the heat dissipation face of the heat dissipation box body, and the graphite films on the two sets of high-power single machines are connected. The waveguide assembly comprises a waveguide and a waveguide support, a heat conduction copper cable is connected between the waveguide and the waveguide support, and integrated cooling fins are arranged on the waveguide. The effective heat dissipation area of a single machine is increased through the graphite film, and the heat dissipation capacity is effectively enhanced; the mechanical property of the waveguide assembly in the feed source is enhanced through the heat-conducting copper cable, and the temperature level of the waveguide in the feed source is reduced; the temperature level of the antenna in the working period is reduced by enhancing the heat dissipation capability of the high-power single machine and the waveguide assembly; the whole device is high in reliability and high in process realizability.

The invention relates to a method for preparing a heterostructure magnesium alloy based on low-temperature friction stir additive in the field of metal processing, and designs a high-quality and high-efficiency cooling tool, which mainly comprises the following steps: firstly, cooling alcohol to low temperature by using liquid nitrogen; then the magnesium alloy plate to be machined is fixed to a cooling tool in a lap joint mode, and the tool mainly comprises a device body (1), a cooling liquid inflow hole (2), a cooling liquid outflow hole (3), a workpiece containing groove (4), a liquid storage chamber (5), a pressing plate (6) and fastening screws (7); then low-temperature alcohol is introduced, an advancing path and technological parameters are set, first-layer stirring friction additive manufacturing is conducted, and in the machining process, a stirring head and a workpiece are always kept to be submerged in cooling liquid; then, the surface obtained after material adding is milled to be flat, a layer of plate is overlaid on the other unmachined surface again, and the plate is fixed into the workpiece containing groove; and finally, second-layer friction stir additive manufacturing is conducted on the other face of the plate according to the same parameters and the same path. The method can be suitable for additive manufacturing of low-melting-point metal such as magnesium alloy and aluminum alloy at the same time, the multi-scale gradient heterostructure magnesium alloy can be prepared at the same time, the preparation efficiency is improved, and high-quality and low-cost preparation of heterostructure materials is achieved.

The utility model discloses a high-power flat wire vertically-wound hollow inductor which comprises a coil assembly, a mounting assembly and a connector bar, and the coil assembly is formed by spirally and stereoscopically winding a plurality of strands of hollow wires; the installation assembly comprises insulation fixing frames located at the two ends of the coil assembly, and the line bank is located on the outer sides of the two insulation fixing frames and electrically connected with the coil assembly. The coil assembly is formed by spirally and stereoscopically winding the multiple strands of hollow wires, the effective heat dissipation area of the coil can be increased by adopting the multiple strands of hollow wires, meanwhile, the size and weight of the reactor are reduced, the proximity effect can be effectively reduced by vertically winding the multiple strands of the coil, the electrical performance of a product is improved, and the coil is directly fixed through the insulating fixing frame for the coil. The manufacturing and use efficiency is improved; and the device is suitable for full-automatic equipment operation.

The invention belongs to the technical field of disc brakes, and particularly relates to a ventilation type brake disc with a heat dissipation structure, which comprises two outer side discs and the heat dissipation structure arranged between the two outer side discs. The heat dissipation structure specifically comprises a plurality of heat dissipation ribs, the heat dissipation ribs are distributed between the two outer side discs in a circumferential array mode, the lower side face of each heat dissipation rib is fixedly connected with one outer side disc, the upper side face of each heat dissipation rib makes contact with the other outer side disc, and a ventilation flow channel is formed between every two adjacent heat dissipation ribs. The outer contour of the cross section of each radiating rib comprises an upper side arc, a lower side arc, an inner arc and an outer arc; the inner arc is located on the side, close to the circle center of the outer side disc, of the lower side arc and the upper side arc, the outer arc is located on the side, away from the circle center of the outer side disc, of the lower side arc and the upper side arc, and the width of the inner arc is smaller than that of the outer arc. Therefore, through the arrangement of the multiple radiating ribs, the effective radiating area of the brake disc is increased, the convection heat exchange efficiency is improved, the radiating effect is remarkably improved, and heat accumulation is restrained.

This invention provides a cooling circulation device for a wind turbine nacelle, comprising a nacelle, with a cooling circulation mechanism installed on the upper part of the nacelle. The cooling circulation mechanism includes an upper cover and a lower cover; the upper and lower covers are fixedly connected to each other, and the bottom opening of the lower cover communicates with the upper part of the nacelle; a circulation pump is fixedly installed inside the upper cover, with the output end of the circulation pump connected to a first circulation pipe and the input end connected to a second circulation pipe. This invention constructs a closed cooling circuit on the top of the nacelle, consisting of a circulation pump, circulation pipes, and upper and lower double-layered serpentine coils, enabling the coolant to circulate continuously within the nacelle and perform large-area heat exchange, achieving uniform absorption and rapid conduction of heat from the nacelle; the upper and lower serpentine coils are stacked, expanding the effective heat dissipation area, allowing the device to maintain stable heat dissipation efficiency even during high-load power generation, thereby ensuring the long-term reliable operation of the power generation system.

The utility model relates to computer heat dissipation technical field especially is publicize a kind of vertical straight contact type heat tower radiator of evaporation end, including fixed base, fixed buckle, heat pipe, the evaporation end of multiple heat pipe is vertically fixed in fixed base, and the fixed base is fixed on the heat dissipation surface by fixed buckle.Affinity effect lies in: the evaporation end of heat pipe directly contacts CPU surface with vertical mode, and adopts honeycomb matrix type arrangement, breaks the restriction of traditional horizontal layout to heat pipe quantity, and the number of heat pipe that can be accommodated under same area is realized substantial increase, forms a "three-dimensional heat equalizing bucket", effectively reduces thermal resistance, significantly improves heat conduction performance.

This utility model relates to the field of automotive parts technology, specifically an automotive brake disc, including an outer disc body and an inner disc body disposed on the back of the outer disc body. A connecting member is disposed between the outer disc body and the inner disc body. The outer disc body has several first heat dissipation holes, which are connected to the interior of a heat dissipation cavity. This automotive brake disc, through the coordinated use of the outer disc body, inner disc body, heat dissipation cavity, connecting member, first heat dissipation holes, mounting part, mounting hole, and second heat dissipation holes, allows for rapid heat generation due to friction between the brake disc and brake pads during braking. The heat dissipation grooves, first heat dissipation holes, and second heat dissipation holes on the surfaces of the outer and inner disc bodies, with their unique structure and layout, guide air to form a complex airflow when the brake disc rotates, increasing the contact time and area between the air and the brake disc surface, significantly improving heat exchange efficiency and enhancing heat dissipation performance. Furthermore, the heat dissipation grooves increase the effective heat dissipation area of ​​the brake disc.

The utility model discloses an aluminum alloy heat dissipation cold plate structure based on the 3D printing technology, and relates to the technical field of heat dissipation cold plates, the aluminum alloy heat dissipation cold plate structure comprises a first heat dissipation cold plate body and a second heat dissipation cold plate body, four first connecting pieces are fixedly installed at the top of the first heat dissipation cold plate body, and four second connecting pieces are fixedly installed at the bottom of the second heat dissipation cold plate body; and four second connecting sheets are fixedly mounted at the top of the second heat dissipation cold plate body. According to the utility model, when the control pull rod is pulled to enable the fixed insertion rod to move out of the first insertion hole and the second insertion hole, the first connection sheet and the second connection sheet can be loosened, and when the control pull rod is loosened, the fixed insertion rod can be automatically reset and inserted into the first insertion hole and the second insertion hole under the elastic force action of the reset spring; the first connecting piece and the second connecting piece are fixed, so that the purpose of assembling and splicing the first heat dissipation cold plate body and the second heat dissipation cold plate body is achieved, heat dissipation cold plates of different sizes can be spliced according to actual requirements, the application range is widened, the splicing operation is simple and convenient, and the practicability is good.

The present invention relates to a core-moving autofocus camera module, which solves the problems of the existing core-moving autofocus camera's flexible circuit board being easily offset when moving, occupying a large space, and having poor heat dissipation. The module comprises a housing, a lens arranged on the housing, a circuit board arranged in the housing, an image sensor, a position sensor, and a driving mechanism. When in use, the position sensor is used to detect the displacement of the image sensor to achieve automatic focusing; when the circuit board body moves upward, the deformation support part restores to provide a downward restoring force to the support connection part; when the circuit board body moves downward, the deformation support part restores to provide an upward restoring force to the support connection part at the same time. When the camera module is not working, the restoring force will reset the movable seat to reduce the impact of the movable seat on other parts and abnormal noise caused by external vibration; in addition, the circuit board body is not easy to tilt when moving up and down, the positioning is accurate, and the space occupied is small. Furthermore, the heat dissipation efficiency of the image sensor is improved.

The utility model belongs to the technical field of automobile parts, and provides an element heat dissipation structure which comprises a heat conduction substrate installed on an element, the top of the heat conduction substrate is provided with a plurality of grooves arranged in parallel, each groove is internally provided with a phase change heat conduction layer, the back face of the heat conduction substrate is provided with a plurality of first-level fins distributed in parallel at intervals, and the first-level fins are arranged in parallel at intervals. Secondary fins are arranged between the opposite surfaces of every two adjacent primary fins, the secondary fins are obliquely arranged, a flow guide channel is formed between every two secondary fins, and an airflow guide cover is arranged at the top of the heat conduction substrate; according to the utility model, by arranging the heat dissipation device, heat dissipation can be carried out on elements with insufficient heat dissipation, so that the situation that the temperature of the elements is too high is effectively avoided, and the safety is improved.

The utility model discloses a heat dissipation structure at the bottom of a crankshaft box body, which comprises the crankshaft box body, a crankshaft box cooling air duct is arranged at the bottom of the crankshaft box body, and the crankshaft box cooling air duct penetrates from the input end side of the crankshaft box body to the output end side of the crankshaft box body; the side, close to the input end, of the crankcase cooling air duct is provided with an air supply outlet. The crankcase has the beneficial effects that the non-straight cooling air duct at the bottom of the crankcase body prolongs the residence time of cooling air in the air duct, increases the effective cooling area and improves the cooling efficiency of the cooling air flowing through the bottom of the crankcase body, so that the running oil temperature of an engine is effectively reduced, the running stability of the engine is improved, and the service life of the engine is prolonged. The service life of the engine is prolonged.

This invention discloses a MEMS synthetic jet heat sink and array heat sink based on an asymmetric dual-diaphragm and a top-surface through-flow channel, comprising a PCB substrate, a silicon substrate, a first piezoelectric diaphragm, a second piezoelectric diaphragm, and a top frame. The lower surface of the PCB substrate is used for mounting to a heat source and is a complete plane; the silicon substrate is disposed on the PCB substrate, and a vibration cavity is formed within the silicon substrate; the first and second piezoelectric diaphragms are sealed and connected to the silicon substrate, and together enclose the vibration cavity; the two piezoelectric diaphragms are arranged asymmetrically relative to the PCB substrate; the top frame is disposed above the first and second piezoelectric diaphragms and connected to the PCB substrate; the top frame has an opening; the opening communicates with the vibration cavity, together forming a top-surface through-flow bidirectional channel, so that the air intake and exhaust processes of the heat sink are completed through the top-surface through-flow bidirectional channel.

The utility model provides a kind of grain air conditioner arc-shaped radiator structure, including shell, condenser, air inlet, air outlet and vent are set up on shell, evaporator and fan are connected in shell, evaporator corresponds with air inlet, fan corresponds with air outlet, condenser corresponds with vent, compressor is connected in shell, compressor is connected with condenser, evaporator, condenser is connected with evaporator by expansion valve, auxiliary port is set up on shell, auxiliary port and vent are located on the two side walls adjacent of shell, vent, air inlet and air outlet are located on the same side of shell, condenser includes L-shaped fin, bracket and copper pipe, copper pipe is connected on bracket, multiple L-shaped fins are connected on copper pipe and along the height direction of bracket arrangement, one side of L-shaped fin corresponds with vent, another side of L-shaped fin corresponds with auxiliary port, reach the purpose of improving heat dissipation performance.

The utility model relates to the technical field of photovoltaic power devices, and discloses a photovoltaic-based reverse connection prevention device, which comprises a device box, a device element is fixedly arranged in the device box, the right side of the device element is fixedly connected with a plurality of element pins, the plurality of element pins penetrate through the side wall of the device box, and the device box is fixedly connected with the device element. Heat absorption nets are arranged on the upper side and the lower side of the device box, a positioning box is connected to the outer side of the device box in a sleeving mode, inserting grooves are formed in the upper side and the lower side of the positioning box, and positioning grooves are formed in the two side walls of the two inserting grooves. According to the photovoltaic-based reverse connection prevention device, through the positioning box and the heat dissipation box which are arranged on the outer side of the device box, the positioning box and the device box can be fixedly connected by screwing fixing bolts, and limiting blocks enter limiting grooves under the action of positioning springs, so that the heat dissipation box is fixedly connected with the positioning box and the device box; and therefore, the cooling fins start to carry out heat dissipation work under the action of the telescopic springs.

The invention discloses a cutting blade and a cutting tool, and relates to the field of cutters, the cutting blade comprises a top surface, a bottom surface and side surfaces, the top surface and the bottom surface are oppositely arranged along the thickness direction of the cutting blade, the side surfaces are respectively connected with the top surface and the bottom surface, and the top surface and the bottom surface are oppositely arranged along the thickness direction of the cutting blade. A cutting edge is formed at the joint of the side surface and the top surface; wherein the top surface comprises a margin surface, a front cutter surface and a groove part which are connected in sequence, the margin surface extends in the extending direction of the cutting edge, a plurality of notch parts which are distributed at intervals in the extending direction of the cutting edge are formed in the surface of the margin surface, the front cutter surface obliquely extends from the margin surface to the groove part, and the notch parts are distributed at intervals in the extending direction of the cutting edge. And a plurality of convex parts which are arranged in sequence are formed on the surface of the groove part. According to the cutting blade provided by the embodiment of the invention, local high temperature and thermal stress concentration can be reduced, the heat dissipation efficiency is improved, and the service life of a cutting tool is effectively prolonged.

The utility model provides a pipeline annular weld detection device's imaging board, including imaging panel, communication box and connecting frame, wherein, the imaging panel includes casing and a plurality of heat dissipation blocks, the heat dissipation block is integrally formed on the casing, and a plurality of heat dissipation blocks are arranged in the matrix spacing mode, the communication box is fixed with bolt setting on the casing, and is in close contact with the heat dissipation block and is away from the one side of casing, the connecting frame is fixed setting on the casing, is used for with walking frame fixed connection. The utility model discloses a plurality of heat dissipation blocks are set up on the casing, can increase the effective heat dissipation area of imaging board, intensifies the convection heat transfer effect of imaging board position to improve the heat dissipation effect of imaging board, guarantees the normal operation of imaging board.

The present invention belongs to the technical field of wireless communication terminals, and in particular, a wireless communication terminal based on Bluetooth low energy consumption technology, comprising a housing, a mounting column is provided on the bottom inner wall of the housing, a circuit board is provided on the top of the mounting column, a processor and a Bluetooth module are provided on the top of the circuit board, antennas are provided on both sides of the outer wall of the housing, an air inlet is provided on the bottom outer wall of the housing, an air inlet is provided on the inner wall of the air inlet, a bracket is provided on the inner wall of the air inlet, a motor is provided at the bottom of the bracket, a fan blade is connected to the output shaft of the motor, a heat-conducting column is provided at the bottom of the circuit board, a plurality of heat-conducting strips distributed at equal distances are provided on the outer wall around the heat-conducting column, the heat-conducting strips are in an S-shaped structure, and a plurality of heat-conducting protrusions are provided on the outer wall of the heat-conducting strips. The present invention ensures that the heat inside the housing is discharged in time, thereby increasing the service life of the equipment.

The invention discloses a casting die head for film production and casting film production equipment. A die head body of the casting die head is provided with a material injection opening, a transverse seam-shaped outlet and a plurality of heat dissipation grooves which are transversely arranged side by side, and notches of the heat dissipation grooves are exposed for heat dissipation. According to the cast film production equipment, raw materials are heated and melted into molten materials through an extruder, the molten materials are injected into an inner runner of a die head from a material injection opening of the cast die head, and a transverse seam-shaped outlet of the cast die head is aligned with a cooling roller so that sheet-shaped material bodies formed by extruding the molten materials outwards can flow onto the cooling roller; and the cooling roller is used for quenching and shaping the sheet-shaped material body to prepare a thin film. According to the casting die head, the heat dissipation groove is formed in the die head body, and the groove opening of the heat dissipation groove is exposed, so that the effective heat dissipation area of the die head is remarkably increased, and the die head is not prone to overheating in the production process. The multiple heat dissipation grooves are arranged in parallel in the transverse direction and are consistent with the transverse seam-shaped outlet in direction, so that the temperature of the die head body can be uniformly distributed, and local overheating is effectively avoided.

The present invention discloses a superhard blade with a superhard strip insert, comprising a tool body, wherein the peripheral contour of the tool body is in a polygonal shape; in the tool body, at least one corner position corresponding to the polygonal shape is set as a tool tip; the tool tip includes a substrate made of cemented carbide material and a superhard strip insert made of superhard material; the corresponding corner positions of the substrate are provided with notches for accommodating the superhard strip insert, and the superhard strip insert is fixed in the notch at the corresponding corner position of the substrate by welding; the outer edge of the upper end of the superhard strip insert is set as a cutting edge. The present invention can reduce the amount of superhard material used to reduce costs, and can design chip breakers with different functions according to different processing conditions in the area vacated by the superhard material, thereby improving the life and production efficiency of the blade.

The utility model discloses an LED court lamp capable of being spliced. The LED court lamp comprises a power source assembly, a plurality of lighting assemblies, a mounting assembly, a first lampshade shell, a second lampshade shell and a splicing assembly arranged between the top of the first lampshade shell and the top of the second lampshade shell. The first lampshade shell is provided with a power supply bin with a bottom opening and at least one lighting bin, and the second lampshade shell is provided with at least one lighting bin with a bottom opening; a plurality of radiating fins which are arranged in parallel are arranged at the tops of the first lampshade shell and the second lampshade shell corresponding to the lighting bin; the radiating fins on the first lampshade shell and the radiating fins on the second lampshade shell are connected in a one-to-one correspondence mode, so that a radiating channel is formed between every two adjacent radiating fins. The two ends of each heat dissipation channel are each provided with a flow guide hole, the flow guide hole in one end is formed in the first lampshade shell, and the flow guide hole in the other end is formed in the second lampshade shell. Heat interference is reduced, the effective heat dissipation area is increased, the lighting power of the lamp can be adjusted according to actual requirements, and water and dust can be effectively prevented from being accumulated on the top of the first lampshade shell and the top of the second lampshade shell.