28results about How to "Simple cooling structure" patented technology

The present invention discloses an integrated device of a motor and a planetary reducer and a manufacturing method thereof, and the technical scheme thereof includes: a casing, a motor assembly and a planetary reducer assembly, the casing is provided with mounting cavities for the motor assembly and the planetary reducer assembly respectively, the motor assembly and the planetary reducer assembly are matched in transmission, and a cooling structure is provided on the outer circle of the casing. The manufacturing method mainly processes the casing, the stator core is installed on the casing, the rear end cover of the motor is fixed on the casing, the rotor of the motor is first installed on the front end cover inside the motor, and then pressed into the stator, the sun gear of the planetary reducer is installed on the motor shaft, and the gear lubricating oil is added through the planetary gear oil filling port on the casing, and the coolant needs to be introduced into the casing during operation. The entire technical scheme has a compact structure, simple transmission, and convenient maintenance, and the system efficiency, rotation accuracy, position accuracy and service life are greatly improved, and the heat generation and operating noise are greatly reduced.

The invention relates to the technical field of laser packaging heat dissipation, in particular to an efficient heat dissipation butterfly-shaped packaging tube shell which comprises at least one tube shell bottom plate and four tube shell side plates, and a cavity is defined by the four tube shell side plates and fixed to the tube shell bottom plate. And a heat dissipation channel inlet, a heat dissipation channel outlet and a liquid cooling heat dissipation channel which are communicated with one another are respectively formed in each tube shell bottom plate and at least one tube shell side plate. The heat dissipation channel inlet, the heat dissipation channel outlet and the liquid cooling heat dissipation channel are introduced into the side plate and bottom plate structure of the butterfly-shaped packaging tube shell, so that the first-stage or second-stage heat dissipation mode of the butterfly-shaped packaging device is changed into liquid cooling heat dissipation, the advantages of large space, flexible and compact structure, multiple pins and the like of the butterfly-shaped packaging device are reserved, and the heat dissipation efficiency of the butterfly-shaped packaging device is improved. The heat dissipation efficiency and the heat dissipation capacity are greatly improved, the heat dissipation path is shortened, the heat dissipation structure is simplified, the packaging difficulty is reduced, the heat dissipation level is reduced, the total power consumption of the system is reduced, the influence of the external environment temperature on the device is reduced, and the stability and the reliability of the device are improved.

The utility model discloses a direct drive type drive and control integrated servo motor, which is characterized by comprising a servo driver and a permanent magnet synchronous motor, the permanent magnet synchronous motor comprises a machine shell, a rotor and a stator, the rotor and the stator are arranged in the machine shell, the machine shell comprises a shell, a front end cover and a rear end cover, the front end cover and the rear end cover are located at the two ends of the shell, the shell comprises an inner shell and an outer shell, a spiral heat dissipation flow channel is formed between the inner shell and the outer shell, and a heat dissipation plate is arranged on the outer surface of the outer shell; and the servo driver is arranged on the heat dissipation plate. According to the utility model, the driver and the motor are integrated, the installation space is reduced, the structure is compact, the installation is convenient, and the energy consumption, the calorific value and the operation noise are greatly reduced.

The utility model relates to the technical field of power distribution boxes, and discloses a terminal power distribution box, which comprises a power distribution box body, two cabinet doors are arranged in the power distribution box body, a dustproof structure used for dust prevention is arranged on the outer surface of the power distribution box body, a heat dissipation structure used for heat dissipation is arranged in the top end of the power distribution box body, and the two cabinet doors are arranged in the power distribution box body. Fixing grooves are formed in the cabinet doors, a rectangular transparent window is fixedly installed on the inner cavity wall of one fixing groove, an oval transparent window is fixedly installed on the inner cavity wall of the other fixing groove, the rectangular transparent window is located above the oval transparent window, and heat dissipation grids are arranged on the side walls of the inner cavity of the distribution box body. The heat dissipation grids are arranged in a linear array, the dustproof structure comprises a rectangular frame, and the rectangular frame covers the heat dissipation grids. According to the terminal distribution box, heat dissipation can be conveniently carried out on electronic components in the terminal distribution box, the heat dissipation structure is simple, and dust prevention can be carried out on the heat dissipation opening.

The invention discloses a mold for manufacturing blocking explosion-suppressing balls, the mold comprises a first seat plate, a second seat plate, a fixed mold mechanism, a movable mold mechanism, an ejection mechanism, a cooling mechanism, a filling mechanism, a limiting mechanism, a reset mechanism, an exhaust mechanism and a fixing mechanism; the fixed mold mechanism and the movable mold mechanism are arranged between the first seat plate and the second seat plate, the explosion-suppressing ball space for injection molding inside is a thin-wall skeleton structure, the ejection mechanism ejects the explosion-suppressing balls, and the reset mechanism is additionally provided with a sleeve with magnetorheological fluid, so as to actively control the displacement of the movable mold and reduce the influence of vibration on the injection-molded workpiece, solve the problems of complex structure of explosion-suppressing fillers, great manufacturing difficulty, low efficiency and high replacement rate, and achieve the advantages of smooth surface quality of the produced explosion-suppressing balls, eliminating shrinkage defects, thinner wall surface, small mass, small volume and stable output.

The utility model relates to a motor shaft air cooling structure which comprises a motor output shaft, a cooling channel is arranged in the motor output shaft in a penetrating mode, a fan is further arranged on the motor output shaft, the motor output shaft drives the fan to rotate synchronously, and air generated by rotation of the fan enters the cooling channel. An output positioning block is arranged at one end of the motor output shaft, a containing cavity communicated with the cooling channel is formed in the output positioning block, and the fan is located in the containing cavity; the inner wall of the containing cavity is bent to form a sixth positioning step, and the side face of the fan makes contact with the sixth positioning step. Compared with the prior art, the cooling channel and the fan are arranged in the motor output shaft, the fan is driven to rotate synchronously when the motor output shaft rotates, wind is generated when the fan rotates, and the wind enters the cooling channel through the horn mouth and rapidly takes away heat of an object in contact with the motor output shaft through the motor output shaft. And rapid heat dissipation and cooling of the motor are realized.

The invention belongs to the technical field of motor cooling, and discloses a distributed dual-motor cooling system which comprises a left speed reducer assembly, a dual-motor assembly, a right speed reducer assembly and an electric control assembly, the left speed reducer assembly and the right speed reducer assembly are located on the two sides of the dual-motor assembly, and the electric control assembly is located on the front side of the dual-motor assembly; a left oil inlet channel is formed in the bottom of the left speed reducer assembly and connected with an inlet of a first oil pump, an outlet of the first oil pump is connected with a first oil way of the first heat exchanger, and a left oil way, an oil injection way, a left motor cooling oil way, an oil outlet channel, a right oil way and a right motor cooling oil way are arranged in the shell. A right oil inlet channel is formed in the bottom of the right speed reducer assembly and connected with an inlet of a second oil pump, and an outlet of the second oil pump is connected with a second oil way of the second heat exchanger. When the heating amount of the assembly is small, only the first oil pump or the second oil pump can be started to cool the double motors and the speed reducer, and the energy consumption of the whole vehicle is reduced.

The invention relates to the field of battery heat dissipation, in particular to a high-specific-energy battery with a circulating heat dissipation shell, which comprises a lower shell, an upper shell is arranged above the lower shell, and the upper shell and the lower shell form a closed space. The air cooling radiator is used for heat dissipation when the heat of the battery pack is low, and when the temperature is high, the water inlet pipe conveys a water source into the water tanks, the water source flows in the water tanks through the connecting pipes and is finally conveyed out through the water outlet pipe, so that circulation of the water source is formed, and the heat of the battery pack is transferred to the heat dissipation frame in the circulation process; heat is transferred to the surface of the water tank through the heat dissipation frame, so that an internal water source takes away the heat, the heat dissipation effect is achieved, a valley-peak staggered heat dissipation mode is adopted, certain heat dissipation cost can be saved, the heat dissipation structure is simple, modular design is adopted, and therefore the cost and complexity of later maintenance are reduced, and the heat dissipation effect is good. Therefore, the problem that the heat dissipation cost of the battery is relatively high is solved.

A battery pack of a vehicle includes a plurality of battery modules and a first cooling jacket having a flow path through which a cooling medium flows formed therein, each of the plurality of battery modules may include a battery, a power conversion module, and a bus bar, and a power conversion module that converts power of the battery, and a bus bar that connects the battery and the power conversion module, and that may be in close contact with the first cooling jacket and may be integrally formed with the first cooling jacket.

The present invention relates to an in-wheel motor with improved driving force of the motor and a simplified cooling structure for the motor and a braking device. An in-wheel motor 20 according to the present invention comprises: a motor that transmits motive power to a wheel 11, at least a portion of the motor being disposed inside the wheel 11; a first cooling part 45 and a second cooling part 46 that cool a stator 21 of the motor; and a braking device 25 that applies braking to the wheel 11. The braking device 25 is formed from a brake disc 251 that rotates with the wheel 11 and a brake caliper 252 that induces braking by imparting friction to the brake disc 251. The brake caliper 252 operates in the axial direction of the motor to induce braking in the brake disc 251. A portion of an axial-direction end of the brake caliper 252 is in contact with the stator 21. The first cooling part 45 and the second cooling part 46 cool the braking device 25 through the stator 21.

The utility model provides an antenna cavity assembly and MPCVD equipment. The antenna cavity assembly comprises an antenna and a cavity, an inner cavity with a closed bottom, a closed circumference and an open top is defined by the cavity, and the inner cavity is used for containing plasma generating microwaves; the antenna cavity assembly further comprises a channel piece, and the channel piece comprises a bottom wall, an inner wall, an outer wall, an annular wall and a partition wall. The bottom wall covers the top of the cavity in a sealing mode. The inner wall is annular, is connected to the middle of the bottom wall and extends upwards, a microwave channel is defined by the inner wall, and the microwave channel is communicated with the inner cavity; the outer wall is annular and sleeves the inner wall, and the lower end of the outer wall is hermetically and fixedly connected with the inner edge of the antenna; the annular wall is connected between the outer edge of the antenna and the outer edge of the bottom wall in the vertical direction, and the inner wall, the bottom wall, the annular wall, the antenna and the outer wall define a closed space; the partition wall is arranged between the inner wall and the outer wall so as to divide the closed space into a circulating cooling flow channel allowing a cooling medium to flow. The MPCVD equipment comprises the antenna cavity assembly provided by the utility model.

The anesthesia machine comprises a driving gas branch, a fresh gas branch and a breathing loop, the fresh gas branch is used for feeding fresh gas with anesthetic gas into the breathing loop, and the driving gas branch is used for pushing the fresh gas in the breathing loop to a patient. The driving gas branch comprises a fan assembly, the fan assembly comprises a machine shell, a fan and a first heat dissipation piece, the machine shell comprises a first inner cavity, a first air inlet communicated with the first inner cavity and a first air outlet communicated with the first inner cavity, and the fan is arranged in the first inner cavity and used for driving air to enter the first inner cavity from the first air inlet and be blown out from the first air outlet; the fan comprises a volute, an impeller and a motor, the impeller is rotatably installed in the volute, the motor is installed in the volute and connected with the impeller, the surface, opposite to the first air inlet, of the motor is a projection plane, and the orthographic projection of the first air inlet and the surface of the motor are at least partially overlapped.

This invention discloses an azeotropic phase change cooling rotor assembly, a Roots compressor, and a vacuum pump. The rotor assembly includes a main rotor with circumferentially shaped through-holes and an axially oriented internal through-hole on the rotor shaft. A first and a second auxiliary rotor are mounted at both ends of the main rotor. Rotor sealing plates are arranged on the inner sides of the two auxiliary rotors to seal the shaped through-holes and form a first azeotropic flow region. One end of the rotor shaft is connected to a drive motor, and the other end connects to a swirl cooling pipe with swirl fins on its outer wall, forming a second azeotropic flow region through end sealing. The first and second azeotropic flow regions are filled with an azeotropic phase change cooling medium. This invention is based on the azeotropic phase change heat transfer principle and combines a swirl cooling structure to achieve efficient heat dissipation. The overall structure is simple and compact, eliminating the need for complex cooling equipment, effectively suppressing rotor temperature rise during operation, and avoiding rotor jamming caused by high-temperature thermal expansion.

The invention provides an electronic device, a circuit board and a vehicle. The electronic device comprises a circuit board, the circuit board is provided with a first side and a second side which are opposite to each other, and the circuit board comprises a substrate and a circuit arranged on the first side of the substrate; one or more chips attached to a first side of the circuit board and electrically connected to the lines; the radiator is thermally coupled with the circuit board, so that heat emitted by the one or more chips is transmitted to the radiator through the circuit board; wherein the substrate comprises a polymer matrix, graphene and hexagonal boron nitride, and the graphene and the hexagonal boron nitride are mixed into the polymer matrix. According to the device provided by the embodiment of the invention, a simplified heat dissipation structure of the electronic device is provided.

The invention discloses a passive auxiliary soft switching power amplifier based on hybrid ZVS (Zero Voltage Switching) / ZCS (Zero Voltage Switching). The passive auxiliary soft switching power amplifier comprises a double-direct-current voltage module, a double-resonant capacitor and resonant inductor passive soft switching network, a midpoint double-path parallel bridge arm, a double-switching tube high-frequency main power output bridge arm, a double-parallel auxiliary capacitor and an LC filtering output network. The passive auxiliary device adopted by the invention is simple, an additional auxiliary switch tube and a driving module are not needed, and the control complexity is greatly reduced; the design that the resonant inductor is connected in series with the midpoint bridge arm avoids the direct connection risk of the bridge arm fundamentally, dead time does not need to be set, and the operation reliability is improved; meanwhile, a hardware condition is created for realizing hybrid ZVS / ZCS for the full-switching tube, so that the switching loss is reduced, the heat loss of the whole machine is reduced due to the low-loss characteristic of the passive network, the heat dissipation design can be simplified, and the service life of the device can be prolonged; and the network structure is simple, small in size and easy to integrate.

The invention provides a cooling structure and a machine tool cooling system.The cooling structure comprises a heat exchanger, the heat exchanger is provided with a first heat exchange pipeline and a second heat exchange channel which are relatively independent, and the two ends of the first heat exchange channel are used for being connected with a to-be-cooled component so that a cooling medium can be input into the to-be-cooled component to cool the to-be-cooled component; the cooling medium for cooling the to-be-cooled part is subjected to heat exchange through the second heat exchange channel; the first heat exchange channel comprises a first flow channel and a second flow channel which are relatively independent so that two different cooling media can flow in the first flow channel and the second flow channel correspondingly. The inlet end and the outlet end of the cooling assembly are used for communicating with the two ports of the second heat exchange channel, so that a refrigerant is input into the second heat exchange channel, and the cooling medium located in the first heat exchange channel is cooled; the problem that in the prior art, when multiple cooling media are used for cooling a machine tool, multiple coolers need to be arranged is solved.

This invention discloses a power battery module based on a PCM heat absorber plate, comprising a battery pack consisting of several cylindrical batteries arranged in an array; a PCM heat absorber plate, the interior of which is filled with a thermally conductive porous structure and paraffin phase change material, which absorbs heat through melting of the phase change material to reduce battery temperature; the PCM heat absorber plate is provided with several sleeve structures, the sleeves being connected front and rear along the air-cooling flow direction via sleeve connecting plates, and the cylindrical batteries being mounted on the PCM heat absorber plate through the sleeve structures; heating strips, located at the bottom of the PCM heat absorber plate and perforated, fitting around the sleeves, used to heat the battery pack at low temperatures; and a cooling fan, located at the head or tail of the PCM heat absorber plate, used for air-cooling heat dissipation of the battery pack and the PCM heat absorber plate. This invention, using a PCM heat absorber plate, can enhance the thermal conductivity and heat absorption capacity between batteries, thereby reducing local hot spots and temperature differences between batteries, achieving efficient thermal management.

The utility model discloses a high-brightness LED lamp panel which comprises a radiator, a PCB is installed on the top of the radiator, a plurality of LED lamp beads are arranged on the top of the PCB, a heat conduction plate is arranged on the top of the PCB, a reflecting plate is arranged on the top of the heat conduction plate, a plurality of heat conduction holes are formed in the inner side of the PCB, heat conduction media are arranged in the heat conduction holes, and the reflecting plate is arranged on the inner side of the PCB. The top face of the heat-conducting medium makes contact with the heat-conducting plate, the bottom face of the heat-conducting medium makes contact with the radiator, and the top of the PCB is covered with a light-transmitting cover. The heat dissipation structure is simple, part of light emitted by the LED lamp beads is reflected by the reflecting plate and then emitted, light emitting is more uniform, light emitting dark areas are reduced, the illumination effect is improved, the using effect is good, heat in the lamp body is transmitted to the heat conducting plate through the reflecting plate, the heat conducting plate transmits the heat to the radiator for heat dissipation through the heat conducting medium, the heat dissipation effect is good, and the service life of the LED lamp is prolonged. The brightness of the LED lamp panel is easily improved, and the use is convenient.

This invention discloses an electrically driven, buffered, traveling device for a beam-moving machine, belonging to the technical field of beam-moving machines. It includes a balance beam, mounting seats fixed to both sides of the balance beam, and traveling wheels. This invention externally mounts the drive motor on the top of the lower support, using external heat dissipation for cooling, and is equipped with a pulse-blowing dust removal system. This retains the advantages of external heat dissipation—simple structure, high heat exchange efficiency, and no need for a high-energy-consuming independent refrigeration system—while also utilizing the linkage design between the air supply mechanism and the traveling buffer action of the beam-moving machine to provide a non-powered air source for pulse-blowing. Combined with a lifting mechanism that drives the pulse air pipe to reciprocate, it achieves pulse-type dust removal from the motor surface without dead angles. The entire process requires no additional power consumption or manual cleaning, solving the problem of reduced heat dissipation efficiency caused by dust accumulation on the external motor. This ensures the stability of motor heat dissipation while reducing equipment energy consumption and maintenance costs, and improving operational reliability.

The invention relates to the field of flame tubes of gas turbines, in particular to a flame tube cooling structure. Comprising an inner cylinder and an outer cylinder arranged outside the inner cylinder in a sleeving mode, at least one cooling water partition plate is arranged on the inner wall of the outer cylinder in the circumferential direction, the inner wall of the outer cylinder is divided into a plurality of cavities through the cooling water partition plates, and an inlet and an outlet for cooling water to enter and exit are formed in each cavity in the axial direction; the cooling structure provided by the invention is simple, so that the scheme provided by the invention is easy to implement and relatively low in processing cost, thereby having wide popularization and application prospects in gas turbines, being applicable to both large industrial equipment and small combustion systems, and being wide in applicability.

A linear motor heat dissipation device provided by the present invention comprises a motor mover slidably arranged on a motor stator, the motor mover comprises a mover shell and a mover cover plate, the mover shell and the mover cover plate form a closed space capable of accommodating a silicon steel sheet, the mover cover plate is provided with an air inlet and an air outlet, and the air inlet is communicated with the air outlet. A main heat dissipation groove is formed in the periphery of the silicon steel sheet, a silicon steel sheet heat dissipation groove is formed in the silicon steel sheet, and the silicon steel sheet heat dissipation groove is communicated with the main heat dissipation groove, so that cold air is input from the air inlet, heated hot air is output from the air outlet, and an air cooling air circulation air path is formed. According to the technical scheme provided by the invention, the heat dissipation structure of the traditional linear motor is greatly simplified by arranging the heat dissipation structure on the indispensable silicon steel sheet, the use of other heat dissipation parts is reduced on the basis of improving the heat dissipation efficiency, the manufacturing cost is reduced, and the service life of the linear motor is prolonged.

The utility model provides a battery cut-off unit, a battery pack and a vehicle. The battery cut-off unit comprises a relay shell, a relay body and a liquid cooling structure, the relay body is contained in the relay shell, a containing gap is formed between the relay shell and the relay body, the liquid cooling structure is contained in the containing gap, cooling liquid is arranged in the liquid cooling structure, and the liquid cooling structure is used for being in contact with the relay body for heat exchange. The liquid cooling structure for directly cooling the relay body is arranged in the relay shell, the relay body can be cooled without a liquid cooling system in the battery pack or the battery cut-off unit, the heat dissipation structure in the battery cut-off unit is simple, the liquid cooling structure is directly integrated in the relay shell, and the heat dissipation efficiency is improved. Other space in the battery cut-off unit is not additionally occupied, the overall size of the battery cut-off unit is guaranteed, and the problems that a heat dissipation structure in the battery cut-off unit is complex, the overall size is too large, and the battery cut-off unit cannot adapt to the installation space in a battery pack are solved.

The utility model discloses a heat dissipation flow channel and an AGV robot. The heat dissipation flow channel is used for cooling a heating source and comprises a bottom plate and side plates. The middle of the bottom plate is arranged to be in an arc shape protruding towards the heating source. The side plates are arranged on the two sides of the bottom plate, the side plates and the bottom plate are combined into a groove-shaped structure to form an airflow channel, and the cross section area of the middle of the airflow channel is smaller than that of the two ends. According to the AGV robot, the airflow channel is designed to be in the shape beneficial to air flowing, heat dissipation and cooling of a heating source of the AGV robot are facilitated, the heat dissipation structure is simplified, the self weight of the AGV robot is reduced, and the AGV robot is low in manufacturing cost, reliable and durable.

The utility model relates to motor control equipment. The motor control equipment comprises a box body, a main control board, a driving device, a capacitor plate, a shielding plate, an insulating module, a heat dissipation fan and a heat dissipation part, the box body is provided with a cavity with an opening in one end, and the main control board, the capacitor board and the driving device are sequentially arranged in the cavity of the box body in a stacked mode; the shielding plate is arranged between the main control board and the capacitor plate and is connected with the box body through a supporting part; the output end of the main control board is electrically connected with the input end of the driving device, the output end of the capacitor board is electrically connected with the input end of the driving device, and the output end of the driving device is suitable for being electrically connected with an external motor; the insulation module is arranged in the cavity of the box body and comprises a copper bar and bakelite; the capacitors are connected through copper bar bakelite; the cooling fan is arranged at the bottom of the box body, and the blowing end of the cooling fan faces the interior of the cavity of the box body; and the heat dissipation part is arranged on the side wall of the box body. The air cooling mode is adopted, the heat dissipation fan and the heat dissipation part are integrated, and the heat dissipation capacity is high.

The invention relates to an engine cylinder cover, an engine cooling method and an engine. The engine cylinder cover comprises an upper-layer water jacket, a lower-layer water jacket and a lower-layer water jacket, a lower water jacket; the first pressure valve is arranged at the communication part of the upper-layer water jacket and the lower-layer water jacket; and the second pressure valve is arranged at the communication part of the lower-layer water jacket and the cylinder body water jacket of the engine. By the adoption of the engine cylinder cover, the cooling structure can be simplified, energy consumption is reduced, and cooling efficiency is improved.

A battery pack according to one embodiment of the present disclosure includes: a plurality of battery modules; a plurality of radiators formed below each of the plurality of battery modules; a first flow path for supplying coolant to each of the plurality of radiators; and a second flow path for discharging the coolant circulating in the plurality of radiators, wherein the coolant supplied to each of the plurality of radiators circulates in a space formed between the radiator and a lower surface of a module frame.

The utility model relates to the technical field of energy storage batteries, in particular to an energy storage battery heat dissipation structure which comprises a shell, a liquid inlet pipe is fixedly connected to one side of the shell, a liquid outlet pipe is fixedly connected to the other side of the shell, a sealing clamping seat is arranged on the inner wall of the shell, a battery module heat exchange assembly is arranged in the shell, and the battery module heat exchange assembly is arranged in the shell. A heat dissipation assembly is arranged on the upper surface of the shell and comprises a sealing top cover, the bottom end of the sealing top cover is movably connected to the top of the shell in a clamped mode, and a connecting bolt is connected between the sealing top cover and the upper surface of the shell in a threaded mode. The energy storage battery is simple in structure and has an efficient heat dissipation structure with the synergistic effect of liquid cooling and air cooling, the heat dissipation area and the heat exchange efficiency are increased, heat generated by the battery can be taken away more quickly, the heat dissipation performance of the energy storage battery is improved, and the energy storage battery is very practical.

The utility model discloses a cooling mechanism of automobile bumper injection mold, including frame, locating block, fixed mode, movable die and hydraulic cylinder, the hydraulic cylinder fixed mounting is to frame, the hydraulic cylinder is used for driving movable die along frame horizontal movement, the fixed mode is fixed mounting through bolt to locating block, the locating block is integrally arranged with frame, the die cavity of movable die accesses injection equipment. The utility model discloses through the left side of heat conduction block complete and cooling liquid overall contact, realizes the full area cooling to the inside of mode groove, and the cooling effect is more uniform, and heat conduction block structure is simple, and the processing is convenient, utilizes the empty groove simultaneously and realizes the convenient loading and unloading connection between fixed mode and locating block, is convenient for the replacement mold of replacing mold simultaneously, makes heat conduction block and empty groove convenient fit, thereby realized the device has the advantages that the cooling structure is more simple, the processing difficulty is low, reduces the processing cost, and simultaneously realizes the overall uniform cooling effect of finished product.