28results about How to "With cooling function" patented technology

The utility model discloses an impregnating machine, which belongs to the field of textile equipment and comprises a rack, a glue tank and a mounting plate are arranged on the rack, the mounting plate is provided with an adjustable connecting structure, and an impregnating roller component can be transversely or vertically arranged on the mounting plate; the dipping roller assembly comprises a roller shaft support and a dipping roller driven by a first motor, the dipping roller is partially immersed in the glue tank, the roller shaft support is provided with a clamping groove, a clamping block driven by an air cylinder is arranged in the clamping groove, the clamping block is in pivot connection with a pressing roller, and the air cylinder drives the clamping block to enable the pressing roller to abut against the dipping roller under preset pressure. The wall of the glue tank is of a hollow structure and forms a cooling water channel, and the glue tank is provided with a liquid inlet valve and a liquid outlet valve which are communicated with the glue tank. By manually adjusting the position of the dipping roller assembly, the dipping machine can switch two modes to meet the dipping requirements of different products; meanwhile, the cooling function of the glue tank can reduce the temperature of the glue solution, the cooling waiting time of the product after glue dipping in the rear section is shortened, and the overall production efficiency is further improved.

The utility model discloses a hydro-pneumatic spring with a heat dissipation function, and belongs to the technical field of hydro-pneumatic springs. The device comprises a hydro-pneumatic spring body, a floating piston, a one-way check valve, a cooler and a pipeline system. The floating piston achieves oil-gas isolation, the main piston divides an inner cavity of the cylinder body into a center cavity and an annular cavity, and the center cavity and the annular cavity are communicated through a piston rod damping oil channel and an external pipeline. The core innovation is that in the active cooling circulation, in the compression stroke, hot oil in a central cavity is pressed out, is forcibly guided into an external cooler through a one-way check valve to be cooled, and then is injected into an annular cavity; and in the stretching stroke, the oil flows back to the central cavity through the damping hole. By means of the structure, a double heat dissipation mechanism combining cylinder barrel convection radiation heat dissipation and oil liquid replacement convection heat dissipation is formed, the limitation that a traditional hydro-pneumatic spring only relies on a cylinder body for heat dissipation is broken through, the temperature of oil liquid and gas can be actively and efficiently controlled, temperature rise is remarkably restrained, and sealing reliability and system work stability are guaranteed.

The utility model relates to a cooling device for waste plastic recycling and processing, which belongs to the technical field of plastic recycling and processing and comprises a box body, two supporting columns are fixedly connected to the bottom of the box body, a filtering mechanism is arranged on the box body, a cooling assembly is arranged on the box body, and the cooling assembly is arranged on the box body. And the filtering mechanism comprises a supporting plate slidably connected with the interior of the box body, an electric push rod is fixedly mounted at the top of the supporting plate, and a protective shell is arranged on the outer side of the electric push rod. According to the cooling device for waste plastic recycling and processing, the filtering mechanism and the adjusting assembly are arranged, so that the cooling device has a filtering function, the effect of filtering cooling water is achieved, the cooling water can be conveniently recycled, meanwhile, impurities can be conveniently cleaned out from the interior of the box body, subsequent waste cooling is facilitated, and the cooling efficiency is improved. And the waste cooling efficiency is improved, use by a user is facilitated, and the practicability of the cooling device is improved.

The processing method of the glass substrate comprises the following steps: forming a metal transition layer on a first surface of the glass substrate; forming an anti-scraping layer on the metal transition layer; forming a first protective layer on the scratch-resistant layer; forming a blue light ultraviolet layer on a second surface, opposite to the first surface, of the glass substrate; and forming a second protective layer on the blue-light ultraviolet layer. The method is easy to operate and low in cost, the heat dissipation performance of the glass can be improved, and the anti-blue-light and anti-ultraviolet performance can be improved, so that the use requirements of users are met.

The invention relates to the technical field of forging dies, in particular to a forging die for producing marine reducing flanges, which comprises a fixing plate, a pushing mechanism is arranged at the lower end of the fixing plate, the pushing mechanism comprises a first punch, an extrusion mechanism is arranged at the upper end of the first punch, the extrusion mechanism comprises a die, and a correction mechanism is arranged at one end of the die. The correcting mechanism comprises an arc-shaped plate, and a cleaning mechanism is arranged at one end of the arc-shaped plate and comprises an air inlet pipe. When the pushing mechanism drives the workpiece to move, the correcting mechanism uses a special guide groove to enable an arc-shaped block to center, correct and protect the workpiece, and chippings are prevented from splashing; during forging, the extrusion mechanism extrudes in stages and can automatically limit; after forging is completed, the cleaning mechanism drives a sliding block to move through a hydraulic cylinder, high-pressure gas is sprayed out from small holes of an arc-shaped plate, chippings are cleaned, a punch is cooled, the service life of a die is prolonged, the punching precision is improved, and the production efficiency is improved through the automatic process.

The battery assembly, the battery pack and the new energy vehicle provided by the present disclosure relate to the field of batteries. The busbar comprises a connecting row and a top plate, the connecting row and the top plate are connected, and a sealed cavity is formed between the connecting row and the top plate; the sealed cavity is provided with a capillary structure and a cooling liquid. The cooling liquid is used for absorbing heat of the connecting row and evaporating, the evaporated gas is condensed on the inner wall of the sealed cavity, and the condensed liquid flows back through the capillary structure. The busbar has a cooling function, realizes rapid heat dissipation of the busbar, and the cooling liquid can be recycled, thereby solving the problem of excessively high temperature rise of the busbar under the condition of large-rate charging and discharging.

The utility model discloses an automobile clutch pressure plate with a heat dissipation function, relates to the technical field of automobile clutch pressure plate structures, and aims to solve the problems that an existing automobile clutch pressure plate is poor in heat dissipation performance, the automobile clutch pressure plate is likely to be overheated in the working process, and the service life of the automobile clutch pressure plate is affected. Therefore, the service life of the automobile clutch pressure plate is influenced. A mounting groove is formed in one end of the pressure plate cover plate, a connecting hole is formed in the mounting groove, a limiting hole is formed in one end of the connecting hole, a transmission piece is mounted in the mounting groove, a first supporting ring is mounted on one side of the pressure plate cover plate, and a diaphragm spring is mounted on one side of the first supporting ring. A second supporting ring is installed on one side of the diaphragm spring, a clutch pressure plate is installed on one side of the second supporting ring, a supporting seat is arranged at one end of the clutch pressure plate, a positioning seat is arranged at one end of the supporting seat, and a heat dissipation groove is formed in one end of the clutch pressure plate.

This utility model relates to pipes, condensers, finned heat exchangers, evaporators, and refrigerators used in heat exchange equipment. The pipe is formed by bending a single, continuous pipe. The pipe is made of corrugated tubing, with one end serving as an inlet and the other as an outlet. The corrugated tubing is bent vertically, with adjacent upper and lower sections arranged parallel to each other, in at least two rows. Each row has a U-shaped bend at both ends, and inlet and outlet pipes are installed at the inlet and outlet. This utility model has a simple and reasonable overall structure and is practical and convenient to use.

The utility model discloses a kind of constant temperature device of gravure press ink, it is related to printing technical field, including the cooling assembly for communicating ink groove and ink storage tank, cooling assembly is used to carry out cooling treatment to the ink conveyed between both;The cooling assembly includes the cylinder with built-in cooling pipeline, cooling pipeline is used to generate cooling environment atmosphere inside cylinder, cylinder is connected with ink groove, ink storage tank respectively, to make the ink by ink storage tank into cylinder is cooled and is discharged to ink groove with cooling.This utility model connects ink groove and ink storage tank by cooling assembly, realizes the active cooling treatment to ink, this design not only can replace original conveying pipeline to ink groove play the function of feeding, and it has the cooling function to ink, can effectively control ink temperature, prevent viscosity change or printing quality problem caused by ink overheating, to ensure the stability and consistency of printing process.

The present application relates to a kind of green frozen sand mold additive manufacturing forming system equipment and method, including heat-insulated sealed printer shell;Detachable multifunctional printing platform;With temperature adjustment function's ink supply system;With heat insulation function's printing assembly;Adjustable sanding volume's sanding device;Adjustable interlayer refrigerator;Multi-material precooling sand mixing device;External control cooling and humidity refrigerating unit.The device of the present application is based on the principle of additive manufacturing, according to the designed three-dimensional digital model of casting, adopts interlayer cooling method to rapidly cool down and freeze the sprayed water-based ink, forms layer by layer, can quickly produce multi-material, green pollution-free, high-quality complex sand mold (core), meet the casting needs in many aspects, improve the performance and precision of casting, realize the high efficiency, high performance and green casting of complex casting.

The utility model discloses a refrigeration air conditioning equipment control box with a heat dissipation function, which comprises refrigeration equipment, one end of the refrigeration equipment is fixedly connected with a control box, the inside of the control box is fixedly connected with a water collecting box, the inside of the water collecting box is fixedly connected with a refrigeration pipe, and one end of the refrigeration pipe is fixedly connected with a cold air pipe. The utility model relates to the technical field of control boxes. According to the refrigeration air conditioning equipment control box with the heat dissipation function, through mutual cooperation of the refrigeration pipe and the water collecting tank, moisture in the control box is condensed, the control box can be kept dry, and short circuit caused by too high humidity is prevented; through mutual cooperation of the fan, the fixing frame and the refrigeration pipe, positive pressure is always kept in the control box, cold air of the refrigeration pipe is blown into the control box through the fan, the temperature in the control box can be reduced, and dust prevention of the control box can be achieved.

The utility model relates to the technical field of screw extrusion equipment, and discloses single-screw extrusion equipment with a heat dissipation function, which comprises an extrusion cylinder, a heat dissipation frame is fixedly assembled on the side surface of the extrusion cylinder, the side surface of the heat dissipation frame is in sliding connection with a fixed frame, auxiliary filter plates are fixedly assembled on the inner walls of the two sides of the fixed frame, and the auxiliary filter plates are fixedly assembled on the inner walls of the two sides of the fixed frame. A main filter plate is fixedly assembled on the inner wall of the side, away from the extrusion cylinder, of the fixing frame, a U-shaped frame is fixedly assembled on the inner wall of the heat dissipation frame, and a motor is fixedly assembled on the inner wall of the U-shaped frame. Through cooperative use of the motor and the driving gear, while the motor drives the screw rod body to rotate through the driving gear and the rotating shaft, the driving gear drives the rotating gear to rotate through the transmission gear, and then the rotating gear drives the fan blade rod to rotate; and heat in the auxiliary heat dissipation frame is driven by rotation of the fan blade rod to penetrate through the inner walls of the auxiliary heat dissipation groove and the main heat dissipation groove to the outside of the device, so that heat dissipation of the motor is assisted.

The utility model relates to the technical field of injection molding machine racks, and discloses an injection molding machine rack with a heat dissipation function, which comprises a support frame, universal wheels are mounted at the bottom of the support frame, a support seat is mounted on the upper surface of the support frame, a mounting frame is mounted on the surface of the support seat, a motor is mounted on the surface of the mounting frame, and the motor is mounted on the surface of the mounting frame. A rotor of the motor is coaxially provided with a screw rod, the surface of the screw rod is rotationally connected with a driving block, the upper surface of the driving block is provided with a mounting plate, and the additionally arranged motor can drive the screw rod to rotate, so that the driving block can be driven to move, the mounting plate can be driven to move, and a water cooling pipe can be driven to make contact with the surface of the injection molding bin; and the water cooling pipe can be separated from the injection molding bin by controlling the position of the mounting plate, so that when the injection molding bin is disassembled and assembled, the heat dissipation device does not need to be disassembled and assembled, the steps of maintaining the injection molding machine are reduced, and the injection molding machine is convenient to maintain.

The utility model relates to the technical field of cement production equipment, in particular to a cement grinding device, which adopts the technical scheme that the cement grinding device comprises a grinding machine barrel body, a neck bush body arranged in the grinding machine barrel body and a communicating groove, the communicating grooves are formed in two sides of the inner wall of the mill cylinder body; holes are formed in the two communicating grooves at equal intervals, and first communicating pipes are installed in the two communicating grooves in an embedded mode. The utility model solves the problem that the service life of the device in the prior art is easily shortened due to high temperature.

The utility model discloses a battery box which comprises a lower box body, the lower box body comprises a bottom plate and four side plates, and the four side plates and the bottom plate are arranged in a split mode; the bottom plate is provided with a mounting position for mounting the battery module; a ventilation opening is formed in at least one side plate; the upper cover is provided with a heat dissipation module; after the battery module is arranged at the mounting position, the four side plates surround the periphery of the bottom plate so as to form an accommodating space among the four side plates, the battery module is positioned in the accommodating space, and the upper cover covers the tops of the side plates so as to seal the top of the accommodating space; the battery pack comprises a battery box and a battery module, and the battery module is arranged at the mounting position; through the split arrangement of the bottom plate and the side plates of the lower box body, the side plates and the bottom plate can be mounted after the battery module is mounted to the mounting position of the bottom plate, the battery module is not blocked by the side plates during mounting, the battery module does not need to be excessively carried, the working intensity is reduced, and the product yield is improved; the heat dissipation effect of the battery box is enhanced through double heat dissipation of the ventilation openings and the heat dissipation modules.

The utility model discloses a drawing type DC power supply and distribution cabinet body, which comprises an outer cabinet body, a movable supporting plate is arranged in the outer cabinet body, fixed guide rails are arranged on two sides of the bottom of the movable supporting plate, the fixed guide rails are detachably installed on side walls of an inner cavity of the outer cabinet body, first installation grooves are arranged on two sides of the bottom of the movable supporting plate, and the first installation grooves are detachably installed on the side walls of the inner cavity of the outer cabinet body. According to the power distribution cabinet, the design of a built-in pull-out structure is adopted, all electric appliance parts in the power distribution cabinet are installed in the movable built-in cabinet body, the electric appliance parts are arranged in the movable built-in cabinet body, and therefore the power distribution cabinet is convenient to install, convenient to use and high in practicability. In the maintenance work, the inner cabinet body can be pulled out to the outside for maintenance work, so that the working posture is not limited by a narrow space, thereby improving the maintenance speed of the power distribution cabinet, improving the maintenance efficiency of the power distribution cabinet, and providing convenience for the work and use of a user.

This application relates to a beverage device, including an inner shell with a cavity inside, the cavity having an opening; a removable inner liner suspended within the cavity through the opening; a heating element disposed at the end of the cavity away from the opening and opposite the bottom of the removable inner liner; and a cooling component disposed on the side of the heating element away from the removable inner liner; wherein a first gap is formed between the sidewall of the cavity and the heating element. This application enables the beverage device to have both cooling and heating functions, meeting consumers' different needs for hot and cold beverages, eliminating the need to purchase separate cooling and heating equipment, thus reducing purchase costs.

The invention discloses a run-flat tire assembly which comprises a tire, a rim and at least two supporting pieces, all the supporting pieces are circumferentially spliced into an inner supporting body, every two adjacent supporting pieces are spliced through a mounting structure, and after mounting, a certain gap is formed between the inner ring annular surface of the inner supporting body and the mounting surface; the installation structure comprises a convex connector and a concave connector which are arranged at the two ends of the supporting piece, a fixing bolt used for fixing the adjacent supporting piece is arranged between the convex connector and the concave connector, and an anti-loosening structure used for preventing the fixing bolt from loosening is arranged on the convex connector and the concave connector. Due to the design of the gap between the inner supporting body and the rim, the assembling difficulty of the tire assembly can be effectively reduced, and the assembling efficiency is improved; and an anti-loosening structure is arranged between every two adjacent inner supporting bodies, so that the phenomena of loosening, collapse and the like of the inner supporting bodies caused by bolt loosening of the inner supporting bodies under long-term and high-frequency vibration can be effectively prevented, and the safety guarantee capability is extremely high.

This invention belongs to the field of ceramic wall and floor tile production, specifically relating to a digital ceramic slurry spraying device with a liquid cooling system. It mainly includes: a ceramic slurry spraying head, a slurry connecting pipe, a solenoid valve suitable for ceramic slurry, a solenoid valve heat dissipation and temperature control device, an integrated circuit board and control panel, and a fixing bracket. The solenoid valve heat dissipation and temperature control device mainly includes: a cooling tank, a cooling tank sealing cover, a coolant inlet, a coolant outlet, a solenoid valve fixing device, a refrigeration unit, a temperature controller, etc. This invention enables glazing and slurry spraying equipment using a solenoid valve to operate continuously at high frequency for extended periods.

The invention belongs to the technical field of composite materials, and relates to a preparation method of a metal hydroxide-cellulose composite material, which comprises the following steps: preparing a zinc salt precursor reaction solution, immersing a biomass fiber-aluminum film according to a ratio of 50-100g / L of the biomass fiber-aluminum film to the precursor reaction solution, carrying out hydrothermal reaction at 60-120 DEG C for 5-10 hours, cooling, filtering, washing and drying to obtain the metal hydroxide-cellulose composite material. The biomass cellulose and metal hydroxide nanosheets are obtained; according to the material ratio of the biomass cellulose and metal hydroxide nanosheet to the sodium laurate solution being 60-120 g / L, carrying out in-situ growth to obtain a hydrophobic biomass cellulose and metal hydroxide nanosheet; and performing electrostatic spinning on the surfaces of the hydrophobic biomass cellulose and metal hydroxide nanosheets to deposit cellulose acetate, thereby obtaining the hydrophobic biomass cellulose and metal hydroxide composite nanosheets. The prepared material is applied to an energy-saving packaging material, has asymmetric infrared radiation performance, has effective humidity regulation and control, heat dissipation and bacteriostasis functions, and can be used for fresh-keeping packaging of food fresh materials and the like.

The utility model discloses a computer heat dissipation module liner with conductive heat dissipation buffer functions, which comprises silica gel, a silica gel protective film, a single-sided MYLAR adhesive tape and a single-sided copper foil adhesive tape III, the silica gel protective film is arranged at the lower half part of the single-sided copper foil adhesive tape III, the single-sided MYLAR adhesive tape is arranged at the upper half part of the single-sided copper foil adhesive tape III, and the silica gel protective film is arranged at the lower half part of the single-sided copper and silica gel is arranged on one side, far away from the single-side copper foil adhesive tape III, of the single-side MYLAR adhesive tape According to the utility model, the silica gel with the hardness of 70 + / -5 degrees is designed to play a strong buffer role, components are more effectively protected, the single-sided MYLAR adhesive tape has an insulation function, and the single-sided copper foil adhesive tape I, the single-sided copper foil adhesive tape II and the single-sided copper foil adhesive tape III all have conductivity, a shielding effect and a heat dissipation function in the X-Y direction and the Z direction. The single-face copper foil adhesive tape I, the single-face copper foil adhesive tape II and the single-face copper foil adhesive tape III are overlapped, so that the heat dissipation function can be enhanced, and the computer heat dissipation module liner product has good electric conduction, heat dissipation and buffering functions.

The utility model relates to the technical field of heating cable rolling, in particular to a rolling device with a cooling function for heating cable production, which comprises a rolling body, a rolling cavity is arranged in the rolling body, through grooves penetrating through the rolling cavity are arranged on the front side and the rear side of the rolling body, and an inlet is arranged on the left side of the rolling body. An outlet is formed in the right side of the rolling body, moving plates are arranged on the upper portions of the front end and the rear end in a through groove, electric telescopic rods are arranged at the top ends of the moving plates, and moving rollers are connected between the two moving plates. Cold air makes contact with the surface of the heating cable and absorbs heat, so that the heat conduction efficiency is improved, the efficient cooling effect is achieved, liquid is used for cooling, the cooling efficiency can be enhanced and improved by means of the characteristic that the specific heat capacity of water is large, and the heating cable can be rapidly cooled after being rolled.

This utility model relates to the field of voltage electronic sensor technology, and in particular to a fully enclosed, insulated voltage electronic sensor device, comprising a sensor body. A vent hole is provided at the top of the sensor body's outer shell, and a waterproof and breathable membrane is installed inside the vent hole. A limiting ring is provided on the upper side of the vent hole, and limiting through holes are provided on the left and right sides of the limiting ring. A cooling fan is installed inside the limiting ring, and an outer frame is provided outside the cooling fan. Grooves are provided on the left and right sides of the outer frame, and limiting blocks are provided inside the grooves. Guide sliders are provided on the front and rear sides of the inner end of the limiting blocks, and guide grooves are provided on the inner wall of the grooves. A spring is provided between the inner end of the limiting blocks and the grooves, and a pinch plate is provided on the top of the limiting blocks. Based on the above design, the voltage electronic sensor can have a heat dissipation function.

The application discloses a power bus duct with temperature monitoring, which comprises a bus duct shell, an insulating support, adjacent end sides of the bus duct shell are connected through tenon and mortise connection, the insulating support is arranged and fixed on the outer side of the bus duct shell, single-zone temperature control adjustment structures are correspondingly fixed on the outer surface of the bus duct shell, side ends of the single-zone temperature control adjustment structures are fixed on the inner side wall of the bus duct shell, a power signal wire is arranged in the bus duct shell, and the power signal wire is electrically connected with the single-zone temperature control adjustment structure. The application optimizes the design of the power bus duct, and the power bus duct with the heat dissipation function can directly observe the temperature in the bus duct, has a more wear-resistant structure, reduces the wear of the bus duct and the wire, and has the advantages of simple structure, low cost, convenient installation, different support frames for different installation scenes and wide application range.

This utility model relates to the field of permanent magnet synchronous motor technology, and in particular to a heat dissipation base for a permanent magnet synchronous motor. The base includes a permanent magnet synchronous motor body and a first heat sink. The first heat sink is located on the outer side of the permanent magnet synchronous motor body. In this utility model, by setting a heat-conducting plate, a second heat sink, a flow equalizing plate, a support frame, a cooling fan, an air inlet slot, and a filter plate, when the permanent magnet synchronous motor body is powered on, the support frame supports the cooling fan. The cooling fan is started by an external controller, causing it to rotate and allowing air to quickly enter the base body through the air inlet slot, accelerating air circulation. The flow equalizing plate ensures uniform air distribution, the heat-conducting plate conducts heat to the bottom of the permanent magnet synchronous motor body, and the second heat sink increases the heat dissipation area, allowing heat to dissipate quickly and flow out from the heat dissipation slot. This device enables the base body to have a heat dissipation function and improves the overall heat dissipation efficiency.

The utility model relates to the technical field of circuit protection low-voltage cabinets, and discloses a circuit protection low-voltage cabinet with a circuit heat dissipation function, which comprises a protection low-voltage cabinet, a door plate is arranged on the front side surface of the protection low-voltage cabinet, the rear side surface of the door plate is hinged with the front side surface of the protection low-voltage cabinet, and a heat dissipation mechanism is arranged on the inner side surface of the protection low-voltage cabinet. The inner side surface of the protection low-voltage cabinet is provided with a dismounting mechanism, the heat dissipation mechanism comprises a heat dissipation part and an adjusting part, the adjusting part is located on the outer side surface of the heat dissipation part, the dismounting mechanism comprises a sliding part and a dismounting part, and the dismounting part is located on the outer side surface of the sliding part. Through a heat dissipation mechanism, a filter plate and a heat dissipation plate in a heat dissipation part are utilized for heat dissipation, so that a threaded rod in an adjusting part is utilized, the threaded rod drives a sliding block, a linear plate is driven to move under the action of the sliding block, a door-shaped plate and a second motor are driven, and fan blades are driven by the second motor for comprehensive heat dissipation; and electric appliance elements at different positions in the low-voltage cabinet main body are blown, so that the working efficiency is improved.

This utility model relates to the field of vehicle refrigerator technology, providing a vehicle refrigerator including a cabinet and an ice-making module. The cabinet has a chamber with a cooling zone and an ice-making zone. The ice-making module is located in the ice-making zone and includes an ice-making box and an ice-making evaporator. The ice-making box has an ice-making slot, and the ice-making box and ice-making evaporator are fitted together. The ice-making box is detachably located in the ice-making zone. The vehicle refrigerator makes ice through the ice-making module, the ice-making box, and the ice-making evaporator, thus providing both cooling and ice-making functions. The close fit between the ice-making box and the ice-making evaporator facilitates cold air transfer during ice making, fully utilizing the low temperature of the ice-making evaporator, improving heat exchange efficiency, accelerating ice making, and increasing ice-making efficiency. After ice making, the entire ice-making box can be directly removed for pouring or use, reducing the difficulty of removing ice.

The standard colorimetric lamp box with the heat dissipation function comprises a lamp box body, and the lamp box body comprises a bottom plate, a left side plate, a right side plate, a rear back plate and a top standard light source body. A light uniformizing plate, a standard light source, an isolation plate and a fan heat dissipation exhaust hole are arranged in the standard light source body. Ventilation holes are formed in the left side and the right side of the standard light source body. The fan heat dissipation exhaust holes and the ventilation holes in the left side and the right side are all provided with dustproof nets, and dust particles are prevented from entering the standard light source to affect the light source environment in the lamp box. A fan capable of rotating positively and negatively is mounted in the fan radiating exhaust hole, so that the temperature of an internal standard light source can be effectively reduced, and the service life of a standard light source lamp tube or a lamp bead is prolonged. The ventilation holes in the left side and the right side can improve the convection effect, the heat dissipation capacity is further improved, and therefore the service life of the standard colorimetric lamp box is effectively prolonged.