175results about How to "Fast conduction" patented technology

The invention relates to the technical field of wire and cable manufacturing, in particular to a high-flexibility low-smoke fire-fighting power cable and a preparation method thereof. The cable sequentially comprises a cable core, a shielding layer and an outer sheath layer from inside to outside, the outer sheath layer is prepared from the following preparation raw materials: 60 to 65 parts of methyl vinyl silicone rubber, 12 to 15 parts of ethylene propylene diene monomer, 8 to 10 parts of linear low-density polyethylene, 5 to 6 parts of cross-linking agent, 20 to 22 parts of flame retardant, 6 to 8 parts of reinforced flame-retardant filler, 20 to 25 parts of modified heat-conducting filler, 1.2 to 1.5 parts of coupling agent, 1.3 to 1.5 parts of antioxidant, 3 to 3.5 parts of lubricant, 2 to 2.5 parts of vulcanizing agent and 0.6 to 0.8 part of accelerant. The outer sheath layer of the high-flexibility low-smoke fire-fighting power cable prepared by the invention has excellent mechanical strength, toughness, heat-conducting property, high temperature resistance and flame retardant property, so that the high-flexibility low-smoke fire-fighting power cable has higher reliability and safety in fire-fighting power supply occasions.

The invention discloses a heating assembly, a machine head assembly and air blowing equipment, and relates to the technical field of air blowing equipment.The heating assembly comprises a heating piece and a heat conduction fin structure, and the heat conduction fin structure extends in the circumferential direction of the heating piece and is in heat conduction connection with the heating piece. The heat conduction fin structure and the heating piece can be arranged in the air outlet channel of the machine head assembly and are arranged on the air outlet path of the air outlet channel. According to the heating assembly, the heating piece is in heat conduction connection with the heat conduction fin structure, the heat conduction fins are used for improving the conduction speed of heat on the heating piece, the heat exchange area of the inlet air and the heating assembly is increased, and the beneficial effect of improving the heat exchange efficiency of the heating piece and the inlet air is achieved.

The invention discloses a multichannel optical fiber fluorescent temperature measuring device and method for an electrostatic chuck in an etching machine, and relates to the technical field of semiconductor etching. The device comprises temperature measurement sensors arranged in different areas of an electrostatic chuck, and each temperature measurement sensor comprises a fluorescent temperature measurement head, a ceramic sleeve, a switching optical fiber, a transmission optical fiber, an optical coupling module, a photoelectric detection module and a working light source module; wherein the fluorescent temperature measuring head comprises a fluorescent layer and a heat conducting layer which are stacked, the fluorescent layer is prepared through a hot pressing sintering method, the end face of the fluorescent layer is plated with gold, the heat conducting layer comprises a copper-diamond composite material, the end face of the heat conducting layer is plated with gold and is connected with the end face of the fluorescent layer through a vacuum backflow void-free welding process, and the ceramic sleeve wraps the switching optical fiber. The end face of the ceramic sleeve is plated with gold and is connected with the fluorescent temperature measuring head through a vacuum backflow void-free welding process. By adopting the device, the temperature measurement precision can be effectively improved, the temperature measurement range can be effectively widened, and the temperature distribution on the surface of the semiconductor wafer can be accurately measured.

The invention discloses a laser resonant cavity capable of strengthening the heat dissipation performance of a gain medium and a heat dissipation method, and belongs to the field of laser optical-mechanical structure design. Comprising a laser sealing cavity and a gain medium welding part installed in the laser sealing cavity, and the gain medium welding part is fixed in the laser sealing cavity through a resonant cavity support. The resonant cavity support comprises a support body and a heat pipe assembly installed on the support body, the heat absorption end of the heat pipe assembly is connected with the gain medium welding part, and the heat dissipation end of the heat pipe assembly is connected with a shell of the laser sealing cavity through a heat transfer assembly. Heat generated by the gain medium welding part is sequentially transmitted to the heat transmission assembly and the shell through the heat pipe assembly, so that heat dissipation of the gain medium is completed. The problem that an existing small laser product is narrow in space and cannot dissipate heat in time is solved.

The invention discloses a method for preparing a metal casting mold based on steel grit 3D printing, and belongs to the technical field of metal casting mold machining. In order to solve the technical problem that in the prior art, the mechanical strength and collapsibility of a metal casting mold need to be further improved, the method for preparing the metal casting mold based on steel grit 3D printing comprises the following steps that a sand mold three-dimensional model is established according to a metal casting, then casting mold steel grit is filled in an operation box of sand mold 3D printing equipment, and the casting mold steel grit is obtained; the binder storage tank is filled with a binder; and according to the section formation of the sand mold three-dimensional model, a sand paving system of the sand mold 3D printing equipment paves cast steel sand on a printing platform. The casting steel sand and the binder are matched with each other, the metal casting mold blank is prepared through 3D printing and then dried, the normal-temperature mechanical property and high-temperature property of the metal casting mold are effectively improved, the application range of the metal casting mold is widened, and meanwhile the collapsibility of the metal casting mold is improved.

The invention relates to the technical field of lithium ion batteries, in particular to a sodium ion poly-cathode and anode material synthesized by a solid phase method and a preparation method thereof. The sodium ion polycathode and anode material is sodium ferric fluorophosphate (NFPF), the chemical composition of the sodium ferric fluorophosphate (NFPF) is Na < 4 + x > Fe < 3 + y > P4O12 + zF gamma, and x is greater than or equal to-0.1 and less than or equal to 0.1; y is in the range of-0.1 < = y < = 0.1; z is more than 0 and less than or equal to-1; 0 < gamma < = 2. The sodium ion polycathode and anode material-sodium ferric fluorophosphate (NFPF) prepared by the solid phase method has the advantages of high ion and electron conductivity, structural stability, easiness in synthesis of a pure phase and the like, is favorable for improving the performance of a battery and reducing the production cost, and has a wide application prospect.

The intelligent reactive power compensation device comprises a box body provided with a plurality of through holes for heat dissipation, the inner wall of the box body is provided with a mounting cover covering the through holes, and the mounting cover comprises a cover body and a flange arranged along the periphery of the opening side of the cover body; a plurality of rain and snow intercepting nets and heat dissipation grid plates which are parallel to the inner wall of the box body are fixedly arranged in the mounting cover; the rain and snow intercepting net is formed by alternately stacking a plurality of hydrophilic fiber net layers and hydrophobic fiber net layers, and the heat dissipation grid plate and the installation cover are both made of metal materials. The heat dissipation grid plate comprises at least two layers of hexagonal grating plates parallel to each other and a plurality of connecting short rods used for connecting the adjacent hexagonal grating plates, and the connecting short rods are connected to grid nodes of the hexagonal grating plates on the two sides. Rainwater guide holes close to the bottom of the mounting cover are formed in the side wall of the box body and communicate with an inner cavity of the mounting cover and the outside of the box body. On the premise that the heat dissipation effect is not affected, the negative influence of rainwater can be reduced to the maximum extent, and it is ensured that the reactive power compensation device works stably.

The present invention discloses a paraffin and liquid metal composite phase change energy storage radiator, which relates to the field of radiator technology, including an upper shell and a lower shell that are separately arranged, an upper heat dissipation groove is provided on the upper shell, a lower heat dissipation groove is provided on the lower shell, the upper shell is embedded and installed in the lower heat dissipation groove, a heat dissipation cavity is formed between the lower heat dissipation groove and the upper heat dissipation groove, the heat dissipation cavity forms a liquid metal filling cavity at the corresponding position of the high-power chip, and the heat dissipation cavity forms a paraffin filling cavity at the corresponding position of the low-power chip, the paraffin filling cavity and the liquid metal filling cavity are separated by an annular liquid cooling channel, and a plurality of air cooling channels are provided through the bottom of the lower shell. Low-melting-point liquid metal is combined with a traditional phase change energy storage radiator, and the high thermal conductivity of liquid metal is used to conduct the heat of the chip with high power consumption to the phase change material heat storage area more quickly, effectively solving the heat dissipation problem in scenarios such as high overall thermal capacity requirements of electronic components and the need for rapid temperature equalization of large chips.

The present application provides a diaphragm-free lithium ion battery. The battery comprises a positive electrode current collector, a positive electrode active material, a solid electrolyte, a solvent, a negative electrode active material, and a negative electrode current collector. The solid electrolyte is a solid porous organic polymer, which contains specific functional groups, including weakly coordinated anion groups, and the corresponding cation of the anion group is lithium ion. The porous polymer is a solid powder, which can act as a barrier between the positive electrode active material and the negative electrode active material, eliminating the need for a diaphragm and greatly improving the safety performance of the battery.

The utility model discloses a split type heat dissipation device of an electromagnetic valve, which relates to the technical field of heat dissipation devices and comprises two combined type heat dissipation frames which are symmetrically arranged, and the inner wall of each combined type heat dissipation frame is provided with a coating cavity matched with the outer contour of the electromagnetic valve. A plurality of heat dissipation fins are evenly distributed on the outer surface of each combined type heat dissipation frame, the two combined type heat dissipation frames are detachably connected, and a flexible heat conduction pad is arranged in a wrapping cavity of each combined type heat dissipation frame in an attached mode. The combined heat dissipation frame is easier to install and maintain and higher in use flexibility, the wrapping cavity can be matched with the outer contour of the electromagnetic valve, the flexible heat conduction pad is matched, the wrapping cavity can be tightly attached to the valve body, the heat conduction efficiency is improved, heat is rapidly conducted, and therefore the heat dissipation effect can be improved.

The utility model relates to a liftable tool jig, which belongs to the technical field of welding and comprises a welding jig base, two threaded C-shaped fixing clamps, a welding jig upper cover and a radiating module, the welding jig upper cover and the radiating module are arranged on the threaded C-shaped fixing clamps, and the number of the threaded C-shaped fixing clamps is two. The welding jig base comprises a welding base body, a lifting sliding block is embedded in the bottom side of the welding base body, a lifting positioning pin for fixing the lifting sliding block is detachably installed on the bottom side of the welding jig base body, and a fixing screw fixed to the welding jig base body is arranged in the lifting positioning pin. And a mounting groove for mounting the heat dissipation module and the welding jig upper cover is formed in the welding base. According to the liftable tool jig, the lifting device is additionally arranged in the base of the tool jig, when a copper sheet is placed, the positioning base descends, the periphery of the positioning retaining wall becomes high, and the position of the thin copper sheet is effectively limited.

This invention relates to the field of solid-state battery technology, and particularly to a composite solid-state electrolyte material, its preparation method, and its application. The composite solid-state electrolyte material contains a crystalline phase substance with the general chemical formula: B%A a RE b X 1 c D g +C%A d M e X 2 f D h Where A represents charge carriers; RE represents rare earth elements; M represents metallic elements; X represents... 1 X 2 D is a halide anion; A is an anion doping element or group; a RE b X 1 c D g and A d M e X 2 f D h It is a crystalline phase substance; B% is A a RE b X 1 c D g The mass fraction of the composite solid electrolyte material; C% is A d M e X 2 f D h The mass fraction of the composite solid electrolyte material is defined as follows: 0 ≤ a ≤ 3, 0 < b ≤ 1, 0.5 < c ≤ 12, 0 < d ≤ 5, 0 < e ≤ 2, 1 < f ≤ 20, 0 ≤ g ≤ 4, 0 ≤ h ≤ 5; 85 < B + C < 98, 10% < B% ≤ 85%; 10% < C% ≤ 85%, 0.2 ≤ C / B ≤ 10. The composite solid electrolyte material of this invention includes crystalline and amorphous phase components, giving it high ionic conductivity. The use of moisture-resistant non-metallic halide components instead of traditional halides and oxyhalides in the raw materials also provides it with good air stability.

The utility model belongs to the technical field of cables, and particularly relates to a new energy vehicle fast charging cable which comprises an insulating sleeve, a heat dissipation piece is fixedly connected in the insulating sleeve, heat dissipation protruding points are fixedly connected to the surface of the heat dissipation piece, a heat conduction ring is fixedly connected to the lower end of the heat dissipation piece, and a supporting piece is fixedly connected to the inner wall of the heat conduction ring in a sleeved mode. The surface of the supporting piece is fixedly connected with a heat conduction fin plate, and the heat conduction fin plate is fixedly connected with the heat conduction ring. Through the arrangement of the heat conduction fin plates and the heat conduction rings, heat generated by the inner conductor can be rapidly conducted, under the action of the heat dissipation piece and the heat dissipation protruding points, the heat can be rapidly dissipated, the current circulation effect of the cable is improved, through the arrangement of the supporting piece, the compression resistance effect of the inner conductor can be improved, and under the action of the protection piece, the service life of the cable is prolonged. And an accidental impact force can be released, so that the inner conductor is protected, and the use durability of the cable is improved.

The invention discloses a high-stability rectifier bridge module assembly process. The high-stability rectifier bridge module assembly process comprises the following steps: step 1, preparing components; 2, fixing the electrode and the heat dissipation substrate; step 3, mounting an insulating part; 4, arranging and connecting the diodes; step 5, coating of a sealing coating; step 6, performing surface treatment on the heat dissipation substrate; 7, assembling and fixing the frame; the silicon nitride-based composite material is adopted as the heat dissipation substrate, compared with a traditional metal cooling fin, the heat conductivity and the insulation performance of the material are excellent, heat can be rapidly conducted in high-power operation, local overheating is prevented, and the high-temperature resistance of the module is improved; the heat dissipation substrate composite material can quickly lead out internal heat, the service life of the module is effectively prolonged, it is ensured that the module stably works in a high-temperature environment, and the shock resistance of the module is remarkably improved through the design of a double-layer buffering structure.

The utility model relates to back adhesive technology field discloses the heat dissipation type breathable back adhesive, including polyester film, the polyester film top is provided with the heat conducting filler layer, is provided with the adhesive layer one between heat conducting filler layer with polyester film, heat conducting filler layer top is provided with graphite sheet, graphite sheet top is provided with the breathable microporous structure layer, the breathable microporous structure layer top is provided with adhesive layer two, heat conducting filler layer inside includes graphite sheet and boron nitride powder, graphite sheet with boron nitride powder is pasted together. In the utility model, through the high heat conduction performance of graphite sheet and boron nitride powder, the heat is conducted fast, and the intercommunication micropore of breathable microporous structure layer lets the air circulation and carries away the heat, and the heat dissipation problem is solved efficiently. The adhesive layer guarantees the close connection of each layer, maintains the stable overall structure, finally makes the object of being pasted stable operation under the suitable temperature, guarantees the normal use of relevant equipment or product.

The invention provides a magnetron structure. The magnetron structure comprises a main body part which is provided with an accommodating cavity; the main body part is provided with a plurality of fan blade parts, and the multiple fan blade parts are arranged around the containing cavity at intervals; a resonant cavity is formed in a gap between every two adjacent fan blade parts; the resonant cavity is communicated with the accommodating cavity; the mounting groove is formed in the multiple fan blade parts and communicates with the resonant cavity, so that an annular groove is defined; the diaphragm belt is arranged in the mounting groove; wherein the mounting groove comprises a shallow groove section and a deep groove section, and the depth of the deep groove section is larger than that of the shallow groove section in the extending direction of the containing cavity; at least two shallow groove sections and at least two deep groove sections are arranged, and the shallow groove sections and the deep groove sections are alternately arranged at intervals. Through the technical scheme provided by the invention, the technical problem that the supporting stability of the structure for supporting the diaphragm belt in the magnetron in the prior art is relatively poor can be solved.

This invention provides a film that combines thermal conductivity, thermal insulation, and electromagnetic shielding. It includes a high thermal conductivity film, a phase change film, and a thermally insulating electromagnetic shielding film. The high thermal conductivity film and the thermally insulating electromagnetic shielding film are respectively disposed on both sides of the phase change film. The thickness of the high thermal conductivity film is 0.01–0.5 mm; the thickness of the phase change film is 0.1–1 mm; and the thickness of the thermally insulating electromagnetic shielding film is 0.05–1.5 mm. This invention, combining thermal conductivity, thermal insulation, and electromagnetic shielding, can effectively solve the problem of poor heat dissipation in electronic devices such as mobile phones under high load, while reducing the impact of electromagnetic radiation on users. The product is lighter, thinner, and more flexible; the entire film product can be completely folded without material breakage.

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 discloses a heat conduction pipe provided with a heat dissipation core, and belongs to the technical field of heat conduction and heat dissipation. The heat conduction pipe provided with the heat dissipation core comprises a pipe body, a plurality of heat dissipation fins are arranged on the outer side of the pipe body, connecting pipes are installed at the two ends of the heat dissipation fins and the two ends of the pipe body, and connecting discs are installed on the outer sides of the connecting pipes. The heat dissipation mechanism comprises a center shaft, a heat dissipation core is installed on the outer side of the center shaft and is of a spiral structure, the outer side of the heat dissipation core is fixedly connected with the inner side of the pipe body, the multiple heat dissipation fins are distributed at equal intervals and are in a wave shape, the heat dissipation fins and the pipe body are integrally formed, and multiple flow guide holes are formed in the surface of the heat dissipation core; according to the utility model, the contact area and the retention time of a heat transfer medium and the heat dissipation core can be effectively increased, the transfer efficiency of heat in the pipe body is greatly improved, and the heat dissipation pipe has higher practical value.

The invention relates to the technical field of cable materials, and particularly discloses a heat-conducting insulated cable material and a preparation method thereof. The preparation method of the heat-conducting insulated cable material comprises the following steps: dispersing hexagonal boron nitride in water, adding a sulfuric acid solution and a hydrogen peroxide solution, stirring in a constant-temperature water bath, cooling, centrifuging, drying, adding tetraisopropyl titanate, ethylene glycol, an antioxidant and terephthalic acid, stirring in a constant-temperature oil bath, reducing the system pressure and stirring, cooling in a vacuum environment, and obtaining the heat-conducting insulated cable material. The activated polyethylene glycol terephthalate is obtained; the preparation method comprises the following steps: adding spherical boron nitride and dopamine hydrochloride into a Tris-HCl buffer solution for ultrasonic treatment, adding amino-terminated polyamidoamine for ultrasonic treatment, centrifuging, washing and drying to obtain activated boron nitride; mixing the activated polyethylene glycol terephthalate and the activated boron nitride, stirring, extruding and cooling to obtain the heat-conducting insulated cable material. The cable material is good in thermal conductivity and insulativity, and the preparation method is simple.

The utility model discloses a rotor assembly and a motor. The rotor assembly comprises a rotor iron core and a heat exchange part. The rotor core comprises a plurality of rotor punching sheets, the plurality of rotor punching sheets are sequentially stacked in the axis direction of the rotor core, a plurality of heat exchange holes are formed in the circumferential direction of each rotor punching sheet, and a mounting groove is formed between every two adjacent heat exchange holes; the heat exchange component is arranged in the heat exchange hole, the heat exchange component comprises a plurality of heat exchange strips, the heat exchange strips are arranged in a radial shape from the center of the heat exchange hole to the periphery, and a heat exchange channel is formed between every two adjacent heat exchange strips. The heat exchange hole structure can solve the problem that in the prior art, the heat exchange power of the unit sectional area of a heat exchange hole structure is small.

The tooth piece extending structure of the radiator comprises a plurality of extending pieces connected to the upper ends of radiating fins. The extension sheet comprises a connecting end connected with the cooling fin, a supporting section connected to the connecting end, and an extension section connected to the supporting section at a certain connecting angle. According to the utility model, through simple installation on the original radiator, the heat radiation air channel is improved, the heat radiation effect is enhanced, and the radiator is suitable for different heat radiation environments.

The utility model belongs to the field of microwave devices, and particularly relates to an integrated microwave source device. Comprising a shell, a microwave power supply and a microwave generator, the microwave power supply comprises a high-voltage power supply, the high-voltage power supply comprises an input rectifier module, an inverter module, a transformer module and an output rectifier module which are sequentially connected in series, and the microwave generator comprises a magnetron; a middle partition plate is arranged in the shell, the interior of the shell is arranged in a double-layer mode through the middle partition plate, a first water-air heat exchanger and a fan are arranged on the two sides of the magnetron correspondingly, and a first ventilation opening and a second ventilation opening are formed in the two ends of the middle partition plate correspondingly; and the shell upper layer, the first ventilation opening, the shell lower layer and the second ventilation opening form a circulating air duct. The utility model provides an integrated microwave source device, and aims to solve the problem of poor heat dissipation capability of an integrated microwave source device in the prior art.

The utility model discloses a kind of heating disc and the liquid heater applied to it, it is related to heating disc technical field, comprising have: stainless steel contact layer, the stainless steel contact layer is used to directly contact with liquid, realize the heating conduction of liquid;Stainless steel base layer, the stainless steel base layer is used to bear thick film circuit or heating element, realize heat generation and conduction;Aluminum alloy soldering layer, the aluminum alloy soldering layer is between stainless steel contact layer and stainless steel base layer, for the welding of auxiliary stainless steel contact layer and stainless steel base layer;Stainless steel contact layer and stainless steel base layer of using S316 or S304 material, collocation porous aluminum alloy soldering layer, avoid heating disc surface rust, corrosion, prolong the service life of heating disc, while enhanced the overall structural stability of heating disc, and effectively improve heating efficiency, shorten the time of liquid heating.

The application relates to the field of high-speed communication and information network technology, in particular to a space expandable photoelectric information processing device, which comprises a device body, the device body comprises a power board module, an information processing board module, an interface board module, an expansion information processing module and a processing board heat dissipation top cover, a shielding block is arranged in the interface frame, and the device body comprises the processing board heat dissipation top cover. The application can not only improve the complex processing technology, overcome the deficiencies of the existing technology in the aspects of efficiency, cost, precision, material utilization rate, environmental protection and the like, improve the modularization and expandability of the system, improve the photoelectric data processing capacity, realize high integration and small and light design, help improve the heat dissipation performance and environmental adaptability of the device, and help unify the information processing of multiple types of photoelectric loads.

The utility model discloses a kind of multi-cavity injection molding components for motor heat dissipation, including motor component one and motor component two, and the outer surface of motor component one and motor component two is equipped with heat dissipation fin assembly. The utility model distributes multiple ventilation chambers in motor component one and motor component two, and three-dimensional heat dissipation path is formed by multi-cavity design, avoids heat concentration by partition design, increases heat dissipation area, motor component one and motor component two are integrally injection molded using carbon fiber composite material, reduce production cost and reduce weight, the positioning boss set ensures close contact with motor, accelerates heat dissipation, the heat conduction plate set on the outside of motor component one and motor component two penetrates ventilation chamber, can quickly conduct the heat of motor heat source to each cavity, avoid local overheating, and the heat dissipation fin set increases surface area to improve heat dissipation efficiency.

The utility model discloses a waterproof dustproof grade high's projection lamp, including lamp body shell, heat dissipation fin and glass fixed shell, the heat dissipation fin sets up at the outside of lamp body shell, the top fixed mounting of lamp body shell has the installation outer thread cylinder, the inner wall of glass fixed shell is equipped with internal thread groove, the glass fixed shell is screwed in the outside of installation outer thread cylinder, be provided with the light transmission glass panel between installation outer thread cylinder and glass fixed shell, the utility model relates to projection lamp technical field, waterproof dustproof grade high's projection lamp, through multiple sealing structure design, has effectively promoted waterproof dustproof grade. In the connecting portion of lamp body shell and glass fixed shell, set up annular sealing groove and first sealing washer, set up glass panel sealing washer simultaneously in the upper and lower two sides outer edge of light transmission glass panel, formed multiple sealing defense line, can effectively block rainwater and dust and invade the lamp body inside from this part.

The utility model provides a top sealed type semiconductor refrigerator, which relates to the technical field of semiconductor thermoelectric refrigeration, and comprises a radiating fin, a refrigeration sheet and an evaporation sheet, the top of the radiating fin is provided with a groove, the bottom of the evaporation sheet is provided with a base, the bottom of the base is provided with a fitting groove, and the refrigeration sheet is arranged in the groove and is positioned in the fitting groove; the grooves are matched with the attaching grooves, the grooves in the tops of the cooling fins are used in cooperation with the attaching grooves in the bottoms of the evaporation fins, the contact area between the refrigeration fins and the cooling fins and the contact area between the refrigeration fins and the evaporation fins are increased, heat resistance is reduced, and heat transfer efficiency is improved; the refrigeration sheet, the cooling sheet and the evaporation sheet are bonded through heat conduction silicone grease glue, interface gaps are filled with the silicone grease glue with the high heat conduction coefficient, it is ensured that heat is rapidly conducted to the cooling sheet, cold energy is efficiently transferred to the evaporation sheet, and the overall energy efficiency is improved.

This utility model relates to the field of laser welding equipment technology, and in particular to a fiber laser welding machine with precise positioning. It includes a platform, an mounting plate fixedly installed on the upper surface of the platform, a sliding plate symmetrically slidably mounted on the upper surface of the mounting plate, multiple placement plates fixedly mounted on the sliding plate via multiple support rods, multiple electrically operated telescopic rods fixedly mounted on the upper surface of the sliding plate, a placement plate fixedly mounted at the top of the drive shaft of each of the electrically operated telescopic rods, and a positioning plate fixedly mounted on the lower surface of each placement plate via a connecting rod. A telescopic rod is horizontally fixedly installed in the mounting groove, and a baffle is fixedly mounted on each telescopic rod via an L-shaped rod. Through the cooperation of multiple electrically operated telescopic rods, multiple positioning plates, and baffles, precise positioning of multiple sets of optical fibers of different sizes to be welded can be quickly completed, ensuring accurate docking of the ends of the optical fibers to be welded. Simultaneously, multiple optical fibers to be welded can be positioned and welded, improving welding efficiency.

The utility model discloses a composite lock catch geothermal floor which comprises a floor body, a heat conduction plate is fixedly embedded in the bottom of the floor body, a fixing frame located above the heat conduction plate is fixedly installed in the floor body, and a plurality of partition plates are integrally arranged in the fixing frame. Heat conducting rubber is filled between the adjacent partition plates, a mounting through hole is formed in the middle of the heat conducting rubber, a telescopic sleeve located in the mounting through hole is integrally arranged at the top of the heat conducting plate, and a telescopic column is slidably connected to the top of the telescopic sleeve in a penetrating mode; a heat dissipation plate located at the top of the heat conduction rubber is fixedly installed at the top of the telescopic column, and a jacking spring is arranged at the bottom of the telescopic column. Heat is conducted into air through the top of the floor body through the heat dissipation plate, the heat is rapidly conducted to the upper surface of the geothermal floor, and the geothermal floor has the advantages of being short in heat conduction path, rapid in heating and high in heat efficiency.