147 results about "Core cooling" patented technology

A spray oil cooling device for a stator core periphery of an electric drive unit in a motor vehicle comprising an oil pump for providing a cooling oil mass flow and an oil line for guiding the cooling oil mass flow starting from the oil pump to at least one first oil spray area at stator winding heads of a first stator end face, and at least one second oil spray area at stator winding heads of a second stator end face, wherein the oil line is designed to guide the cooling oil mass flow between the first and the second oil spray area, remote from a stator core cooling sleeve.

The invention provides a long-term passive cooling system of a compact small reactor, which is characterized in that a reactor and steam generators are arranged in a containment, the steam generators are connected with the reactor, and each steam generator is provided with a secondary side residual heat removal system; the liquid storage chamber is mounted on the outer wall surface of the containment in a surrounding manner; the passive heat exchanger is arranged in the liquid storage chamber and is connected with a secondary side residual heat removal system of the corresponding steam generator, so that steam of the steam generator enters the passive heat exchanger for heat exchange; the plurality of passive heat pipes are mounted on the wall surface of the containment in a penetrating manner and are used for guiding heat in the containment to the liquid storage chamber. The secondary side waste heat removal system is arranged on the secondary side of the steam generator and used for relieving non-loss-of-water accidents, short-term and long-term reactor core cooling is achieved outside the containment through the passive heat exchanger combining water cooling and air cooling, the peak pressure of the containment after the accidents is effectively reduced, long-term passive heat carrying is achieved, and the unit operation safety is improved.

The invention discloses a direct injection safety system for a reactor pressure vessel. The direct injection safety system comprises a first water injection pipeline and / or a second water injection pipeline, the first water injection pipeline penetrates through an upper seal head of the reactor pressure vessel, the input end of the first water injection pipeline is located outside the reactor pressure vessel and connected to a coolant source, and the output end of the first water injection pipeline is located in the reactor pressure vessel and penetrates through the reactor core upper supporting plate to extend to a reactor core area; the output end of the first water injection pipeline can be directly positioned to a reactor core area to output a coolant, so that the reactor core cooling efficiency is improved; the second water injection pipeline penetrates through the reactor pressure vessel, the input end of the second water injection pipeline is located outside the reactor pressure vessel and connected to the coolant source, the output end of the second water injection pipeline is located in the reactor pressure vessel and at least extends to the descending section of the reactor pressure vessel, and the output end of the second water injection pipeline can directly output coolant from the descending section. And more coolants are promoted to flow to the reactor core area from the reactor core lower support plate, so that the function of cooling the reactor core is achieved.

The utility model provides a liquid cooling assembly, a battery cell module and a battery pack, and relates to the field of a cylindrical battery cell cooling technology. The liquid cooling assembly comprises at least one liquid cooling plate, the two opposite sides of the liquid cooling plate are used for abutting against a battery cell row, a cooling channel is formed in the liquid cooling plate, the cooling channel comprises an upper layer channel and a lower layer channel communicated with the liquid outlet end of the upper layer channel, and the cooling channel is used for introducing cooling liquid. The cooling liquid flows out of the liquid cooling plate through the upper-layer channel and the lower-layer channel in sequence. After the cooling liquid is introduced into the cooling channel of the liquid cooling plate, the cooling liquid sequentially passes through the upper-layer channel and the lower-layer channel to cool the battery cell row, and compared with the traditional mode that the cooling liquid only circulates in the cooling channel once and cools the battery cell row once, the cooling effect is better. It can be understood that the contact duration between the cooling liquid and the liquid cooling plate can be prolonged, heat conduction between the liquid cooling plate and the cooling water is better achieved, and then the cooling effect is improved.

The present invention relates to the technical field of electric spindle cooling, and particularly relates to a high-speed electric spindle core cooling device and a using method thereof, including: a spindle core, a liquid distribution plate, and a liquid supply plate for supplying liquid to the liquid distribution plate; the spindle core has a plurality of first passages and a plurality of second passages, and the liquid distribution plate is provided with a plurality of guiding passages; the liquid supply plate is provided with a plurality of drainage tubes corresponding to the guiding passages, one end of the drainage tube is fixed on the liquid supply plate, and the outer cylindrical surface of the other end is provided with a sealing ring and is embedded in the guiding passage; a sliding sleeve is arranged on the outer side of the liquid supply plate, the sliding sleeve is fixedly connected with the liquid supply plate and is slidably arranged with the liquid distribution plate, a driving member is arranged on the sliding sleeve, and the driving member drives the sliding sleeve to drive the liquid supply plate to move towards or away from the liquid distribution plate, so that the drainage tube makes a telescopic movement in the guiding passage, accelerating the flow rate of the cooling liquid, improving the cooling efficiency, reducing the temperature rise inside the electric spindle, improving the performance of the electric spindle, and prolonging the working life of the electric spindle.

The utility model discloses a die-casting mold frame for mechanical processing, including a die-casting mold frame body and a workbench, wherein the bottom of the die-casting mold frame body is screwed and fixed on an adjustment seat, and sliders are fixedly installed on both sides of the bottom of the adjustment seat; the die-casting mold frame body includes an upper mold frame, and the bottom of the upper mold frame is fixedly connected to a movable mold seat, while a mold cavity structure is provided at the bottom of the movable mold seat, and a mold cavity cooling channel is provided inside the movable mold seat; a lower mold frame is installed at the bottom of the movable mold seat. In the die-casting mold frame for mechanical processing, cooling water enters the inside of the mold core cooling channel from a liquid inlet pipe, and enters the inside of the mold cavity cooling channel from a hose and a connecting pipe, and the cooling water inside the mold cavity cooling channel is discharged from a liquid outlet pipe, completing the fitting and uniform cooling work of the mold cavity structure and the lower mold core structure, and can quickly cool the molded product between the mold cavity structure and the lower mold core structure, reduce the mold opening time, and improve the processing efficiency of the die-casting mold frame body.

The invention relates to the technical field of cables, and particularly discloses a cooling cable for high-power direct-current charging and a charging cooling system. The cooling cable comprises a cable core and a protective structure layer, the cable core is at least provided with two DC wire cores, a wire core cooling pipe set composed of two wire core cooling pipes, and a pin cooling pipe set composed of two pin cooling pipes, the first DC wire core is installed in the first wire core cooling pipe in a clearance penetrating mode, the second DC wire core is installed in the second wire core cooling pipe in a clearance penetrating mode, and the protective structure layer is arranged between the first wire core cooling pipe and the second wire core cooling pipe. A cooling medium for heat exchange and cooling of the DC wire core is introduced into the wire core cooling pipe group, and a cooling medium for heat exchange and cooling of the charging pin is introduced into the pin cooling pipe group. According to the invention, heat dissipation of the conductive wire core in the cable is realized through a simple and compact structure, and heat dissipation of the DC charging pin is effectively considered, so that the cooling effect of the whole charging path is maximized as much as possible, and adverse effects caused by overheating of the charging path are reliably reduced.

The invention relates to the technical field of temperature control, in particular to an injection mold temperature control method for automobile part production, which comprises the following steps of: respectively finishing the first temperature regulation of a cavity and a core according to the difference between the temperature values of the cavity and the core at the current moment and a required temperature value, and after the first temperature regulation of the cavity and the core, controlling the temperature of the cavity and the core to be lower than the required temperature value; and the temperature value of each monitoring point in the cavity and the mold core at the next moment of the current moment and the flow speed of cooling liquid in the cavity and the mold core cooling system are obtained, so that the local temperature difference consistency of the temperature areas of the cavity and the mold core is determined, and secondary temperature adjustment of the cavity and the mold core is completed. The temperature control precision of the injection mold can be improved, and high-precision production of high-precision automobile parts is facilitated.

1. The name of the product of this design: Computer with a graphical user interface for a core cooling monitoring system. 2. Purpose of this design product: used to run programs. 3. The design highlights of this design product are the graphical user interface content displayed on the computer screen. 4. The picture or photo that best illustrates the design points: Interface change state diagram 1. 5. The computer is of conventional design, and the rear view, left view, right view, top view and bottom view are omitted. 6. Purpose of the graphical user interface: The software is mainly used for core temperature monitoring, core water level monitoring and display, subcooling margin monitoring, containment atmospheric pressure monitoring, cabinet status monitoring and alarm prompts, and core operation configuration parameter downloading. The main view is the login interface of the software. The interface of interface change state diagram 1 is the interface entered by the user entering the account and password in the main view and clicking the "Login" button; the interface of interface change state diagram 2 is the interface entered by clicking the "Core Overview and Equipment Information" option in interface change state diagram 1.

The invention provides a motor stator, a motor and a vehicle power system. The motor stator comprises a stator core which is provided with a plurality of winding installation grooves which penetrate through the stator core along the axial direction of the stator core; the windings are installed in the winding installation grooves, and the winding contained in each winding installation groove comprises a plurality of wires; the insulation sleeve is installed in the winding installation groove, the insulation sleeve extrudes and surrounds the plurality of wires, and the outer surface of the insulation sleeve is provided with a plurality of concave parts, so that a stator core cooling oil channel is formed between the insulation sleeve and the wall of the winding installation groove; the stator core cooling oil channel penetrates through the stator core in the axial direction, and / or the inner surface, facing the winding, of the insulating sleeve is provided with a plurality of concave parts, so that a winding cooling oil channel is formed between the insulating sleeve and the wire, and the winding cooling oil channel penetrates through the stator core in the axial direction.

The utility model discloses a novel cooling device for demineralized water. The novel cooling device comprises a core cooling water tank body, a support pad is fixedly arranged at an opening in the front part of the punched steel plate circular filter cartridge, the front part of the support pad is in close contact with the inner wall of the rear side of the support plate body, and the punched steel plate circular filter cartridge is communicated with the water inlet interface; and an ultrafiltration membrane cover body is arranged on the inner wall of the punched steel plate circular filter cartridge. The ultrafiltration membrane cover body is arranged on the inner wall of the punched steel plate circular filter cartridge, and the ultrafiltration membrane has higher filtering precision, so that impurities such as macromolecular organic matters, colloids and bacteria in desalted water can be removed. And the rear edge of the core shell and the edge of the rear plate body are fixedly connected in a threaded connection mode, and due to the connection mode, the internal parts of the device are very convenient to maintain or replace when the internal parts of the device need to be maintained or replaced.

The utility model discloses a shaft core cooling assembly, main shaft and machine tool, including machine body part and shaft core part, the shaft core part is supported on the machine body part through the bearing, the shaft core cooling assembly forms the independent assembly that can be dismantled on the main shaft, the shaft core part extends from the first end to the second end along the axial direction, and the shaft core part extends from the first end to the second end along the axial direction. A connecting end face used for being connected with a spindle core of a spindle is formed at the second end of the spindle core component, the spindle core component is provided with a cooling flow channel extending to the connecting end face, and the machine body component is provided with a cooling connector communicated with the cooling flow channel. According to the technical scheme, the detachable cooling module used for cooling circulation of the spindle core is adopted, is independent of the structure of the spindle, and has the advantages of being simple in structure, high in stability and convenient to mount and dismount. The cooling device can be applied to high / low rotating speed of various spindles, can bear higher cooling water pressure, and is better in cooling effect.

The utility model provides a kind of deep cavity injection mold cavity core cooling mechanism, comprising: mould body, cooling assembly one and cooling assembly two, the inside of mould body is equipped with cooling assembly one for cooling, the left side surface and the right side surface of mould body are equipped with one cooling assembly two for cooling respectively, cooling assembly one includes the mounting plate for installing cooling pipe, cooling pipe is installed in the inside of mould body and is in serpentine structure, cooling assembly one includes the fixing plate for installing cooling piece, compared with prior art, the utility model has the beneficial effects as follows: by setting cooling assembly one, when using, the cooling pipe of serpentine structure prolongs the flow path of cooling medium in mould, the contact area of cooling medium in serpentine pipe flow with mould body increases, contact time is extended, can more fully absorb the heat of mould, to more effectively reduce mould temperature, improve cooling efficiency.

The utility model provides a mold threaded core cooling sleeve clamping tool which comprises a tool body, the tool body is provided with a clamping groove, a pressing block groove communicated with the clamping groove, a jackscrew hole and a blind rivet hole, the jackscrew hole and the blind rivet hole are communicated with the pressing block groove in the radial direction, and the clamping groove is used for allowing a mold threaded core cooling sleeve to be inserted in; the arc pressing block is arranged in the pressing block groove, the side, facing the clamping groove, of the arc pressing block is provided with an arc surface, the side, away from the clamping groove, of the arc pressing block is provided with a connecting screw hole, and the arc surface is used for abutting against a mold threaded core cooling sleeve; the blind rivet penetrates through the blind rivet hole to be in threaded connection with the connecting screw hole and is used for driving the arc pressing block to move in the direction away from the clamping groove; the jackscrew penetrates through the jackscrew hole to abut against the arc pressing block and is used for driving the arc pressing block to move in the direction of the clamping groove. According to the utility model, the blind rivet and the jackscrew are arranged to clamp the threaded core cooling sleeve of the mold, so that the threaded core cooling sleeve of the mold is not easy to damage.

The invention discloses a compression molding mold which comprises an upper mold and a lower mold, a cover core cooling water channel and a cover wall cooling water channel are arranged in the upper die, part of the cover core cooling water channel and part of the cover wall cooling water channel pass through the lower end of the upper die, and the part, located at the lower end of the upper die, of the cover wall cooling water channel surrounds the outer side of the cover core cooling water channel. The bottom face and the side face of the bottle cap can be cooled at the same time, and the cooling device has the advantages of being large in cooling area, wide in range, short in period and high in product forming quality.

The utility model discloses a liquid cooling plate structure for cooling battery cells, which comprises a plurality of liquid cooling plates and a plurality of liquid cooling plates, and the battery cells are arranged between two adjacent liquid cooling plates; and the cooling liquid conveying assembly is used for providing cooling liquid for the single liquid cooling plate and enabling the cooling liquid to perform circulating heat exchange in the single liquid cooling plate. According to the utility model, the plurality of liquid cooling plates and the cooling liquid conveying assemblies are arranged, the battery cells are arranged between the two adjacent liquid cooling plates, and the cooling liquid conveying assemblies control the cooling liquid to circularly exchange heat in the liquid cooling plates, so that the two sides of the liquid cooling plates can exchange heat simultaneously, namely, the liquid cooling plates positioned on the two sides of a single battery cell can exchange heat for the battery cell simultaneously; the internal and external temperature difference of the battery cell is effectively reduced; the charging efficiency of the battery cell is improved; the energy consumption loss is reduced; the service life of the battery cell is prolonged;

A nuclear reactor comprises a pressure vessel containing a nuclear reactor core. A reactor core cooling system comprises a standpipe including a plurality of orifices in fluid communication with a refueling water storage tank (RWST) to drain water from the RWST into the standpipe, and an injection line configured to drain water from the standpipe to the pressure vessel. In some embodiments the standpipe is disposed in the RWST, while in other embodiments the standpipe is disposed outside of the RWST and cross-connection pipes connect the plurality of orifices with the RWST. The reactor core cooling system may further comprise a valve configured to control flow through one orifice of the plurality of orifices in fluid communication with the RWST based on water level in the standpipe. The valve may comprise a float valve having its float disposed in the standpipe.

A core cooling tube and core structure, including a core and a core cooling tube, wherein the core cooling tube is inserted into the inner cavity of the core for cooperative installation, one end of the cooling tube body is a preform cooling section, including a body cooling section, a neck cooling section and a mouth cooling section connected in sequence along the axial direction, the outer wall of the neck cooling section is provided with a plurality of first positioning bosses protruding outward, a plurality of the first positioning bosses are arranged in sequence around the outer wall of the neck cooling section, and at least part of the first positioning bosses abut against the inner cavity wall of the core. The utility model provides a first positioning boss on the neck cooling section, so that the first positioning boss abuts against the inner cavity of the core to achieve the positioning of the middle section of the preform cooling section, thereby providing a more ideal centering positioning effect for the preform cooling section, ensuring the combined installation quality of the core cooling tube in the core, thereby achieving the purpose of improving the quality of cooling water flow, and forming a strong guarantee for the cooling quality of the preform.

The utility model discloses a needle cylinder injection mold core cooling structure which comprises a first mold core, a cooling mold core and a second mold core which are sequentially connected in a matched mode, the cooling mold core comprises a first base, a spray pipe and an insert pin piece, the first base is detachably connected with the insert pin piece, and an installation cavity is formed in the first base. The spray pipe is arranged in the mounting cavity and is detachably connected with the first base, a first outlet is formed in the side wall of the first base, a first inlet is formed in the bottom of the first base and is communicated with the spray pipe, and a cooling medium enters the mounting cavity through the first inlet and flows out of the first outlet, so that the insert pin part is fully cooled; the second base is arranged on the outer side of the first mold core, the second cooling channel is formed in the second base and communicates with the cooling medium, and the second mold core is cooled, so that the needle head part and the connector of the needle cylinder product can be rapidly formed, and the forming quality, the yield and the attractiveness of the product are guaranteed.

The application relates to a continuous mold core cooling and cleaning system for pipe forming, and belongs to the technical field of pipe production equipment. The system comprises a core rod and a cooling system. The cooling system comprises a cooling box for containing cooling water. The cooling system further comprises a first circulating pipeline for driving the cooling water in the cooling box to enter the core rod and then return to the cooling box. The cleaning system further comprises an acid box for containing an acid solution and a second circulating pipeline for driving the acid solution to enter the core rod and then return to the acid box. The first circulating pipeline and the second circulating pipeline are two sets of independent pipelines. When the first circulating pipeline is conveying the cooling water, the second circulating pipeline is in a closed state. The application has the advantage of improving the cooling effect of the core rod on the inner wall of the pipe.

The invention discloses a graphitization furnace head / tail electrode core cooling water hole structure, which comprises an electrode (1) of a furnace head or a furnace tail, and is characterized in that cooling water holes (2) for water cooling in the electrode (1) are respectively formed in the pushing end surface of the electrode (1) of the furnace head or the furnace tail, and the cooling water holes (2) are arranged along the length direction in the electrode (1) and are of a closed barrel-shaped structure. According to the invention, the problem of water leakage of the through cooling water hole of the electrode group is completely eradicated, the common imprisonment that the copper pipe is difficult to cool, manufacture and install, inconvenient to maintain and operate and the like is broken, and the device has very important significance for reducing the labor intensity of workers and improving the installation efficiency and production efficiency of a furnace. And the problems of overheat damage and the like of the electrode and surrounding graphite blocks are effectively prevented, so that the service life of the furnace is prolonged, and unnecessary production waste is reduced.

The invention discloses an iron core magnetic induction heating and pressurizing production line with an optimized layout structure, which comprises a scattered sheet collecting and transferring device, an iron core assembling, weighing and height measuring device, a first electromagnetic induction heating press, a second electromagnetic induction heating press and a third electromagnetic induction heating press which are arranged from left to right to form a forward arrangement equipment group, the devices in the forward arrangement device group are connected through forward conveying lines; the iron core cooling return conveying line and the iron core positioning clamp dismounting workbench are arranged from right to left to form a reverse arrangement equipment set, and the first transfer machine is arranged between the iron core output end of the third electromagnetic induction heating press and the iron core input end of the iron core cooling return conveying line at the right end of the reverse arrangement equipment set. And the second transfer machine is arranged between the iron core output end of the iron core positioning clamp dismounting workbench at the left end of the reverse arrangement equipment group and the scattered sheet collecting and transferring device at the left end of the forward arrangement equipment group. The iron core manufacturing quality and efficiency are improved.

The utility model discloses a cooling heat pipe structure for battery cells in a battery pack. The cooling heat pipe structure comprises a box body, the cooling liquid is arranged in the box body; the evaporation section is arranged at the first end of the box body; the middle channel is arranged near the middle part of the box body; the condensation section is arranged at the second end of the box body; the cover plate can cover the box body; the battery cells are installed on the cover plate, parts of a whole vehicle for cooling the battery pack are omitted, the temperature of the battery cells in the battery pack can be controlled within the optimal working range through internal circulation of the battery pack, and the structure is simple.

The invention provides a spindle core cooling assembly and an electric spindle, the spindle core cooling assembly comprises a spindle core, the spindle core is provided with a first circulation channel, a second circulation channel and a first communication channel, the first communication channel is communicated between the first circulation channel and the second circulation channel, and the first circulation channel is communicated with the second circulation channel in the fluid flowing direction; the first circulating channel, the first communicating channel and the second circulating channel are communicated in sequence, and the flowing direction of cooling fluid in the first circulating channel is opposite to the flowing direction of cooling fluid in the second circulating channel. According to the invention, at least two sections of reciprocating cooling flow channel structures can be formed on the shaft core, compared with a single flow channel of the shaft core in the prior art, the cooling length of fluid to the shaft core is increased, and the cooling effect to the shaft core is improved; the problems that in the prior art, the flow direction of a cooling flow channel of an electric spindle core is single, and the cooling performance on the spindle core is poor are effectively solved.

The utility model discloses efficient cooling equipment for a demineralized water cooling device. The efficient cooling equipment comprises a core cooling shell, an auxiliary frame body is fixedly arranged on the outer wall of the core cooling shell, and an external water inlet pipe is arranged on the auxiliary frame body; the brine cooling mechanism comprises a brine core water inlet pipe body; and one end of the external water inlet pipe extends into a cold water inlet area with an opening formed by the salt water cooling pipe network. The efficient heat exchange performance is achieved, and efficient heat exchange is achieved through the unique design of the efficient cooling equipment. The saline water cooling pipe network is located in the core cooling shell, and a good heat exchange environment is formed by the saline water cooling pipe network and cold water introduced by an external water inlet pipe. High-temperature saline water enters from the saline water core water inlet pipe body, sequentially passes through the core hollow plate body, the saline water cooling pipe network and the auxiliary hollow plate body, and continuously exchanges heat with cold water sent by an external water inlet pipe in the whole process.

Integrated passive reactor including a reactor primary circuit, a containment cooling system, a residual heat removal system, and a reactor core cooling system. Loop resistance is reduced by means of a reactor-type process design, a flow guide device is provided at a rising section of fluid to reduce the loop resistance, the rising section is shrunken to increase the arrangement space of a heat exchanger so as to further optimize system resistance, and the designs of an infinite-time passive reactor core residual heat removal system and an infinite-time passive containment cooling system are achieved. By means of the rational configuration of a pressure relief system, high-pressure safety injection is removed, and the passive reactor core cooling system is simplified. By means of the design of an auxiliary circulation device for a loss of coolant accident, the safety of a reactor core in the loss of coolant accident is further enhanced.

The utility model discloses a battery pack. The battery pack comprises a battery assembly, a battery box and a convergence assembly, and the first cooling flow channel on the bottom wall, the battery core cooling flow channel and the cooling confluence flow channel of the confluence assembly form a path for cooling the battery monomers entering and exiting the battery assembly, so that the cooling of the battery monomers is realized. The first cooling flow channel is formed on the bottom wall, so that the cooling flow channel is prevented from being arranged in the accommodating space of the battery box, the internal space of the battery box is maximized, the energy density of a battery pack can be improved, and the number of structural parts of the battery box is reduced; a large amount of gas released during thermal runaway of the single batteries can enter the gas confluence flow channel of the confluence assembly and then is discharged out of the battery pack, so that safety accidents such as fire and explosion of the whole battery pack are avoided. And the cooling medium in the cooling confluence flow channel has a cooling effect on the gas in the gas confluence flow channel, so that the temperature of the gas is reduced, and the diffusion of thermal runaway is delayed.

Disclosed is a reactor pressure vessel direct injection safety system, which comprises a first water injection pipe and / or a second water injection pipe. The first water injection pipe passes through an upper head of a reactor pressure vessel, an input end of the first water injection pipe is located outside the reactor pressure vessel and connected to a coolant source, and an output end of the first water injection pipe is located inside the reactor pressure vessel and extends through an upper core support plate to a core region. The output end of the first water injection pipe can be directly positioned to the core region to output coolant, thus enhancing core cooling efficiency. The second water injection pipe passes through the reactor pressure vessel, an input end of the second water injection pipe is located outside the reactor pressure vessel and connected to the coolant source, and an output end of the second water injection pipe is located inside the reactor pressure vessel and at least extends to a downcomer section of the reactor pressure vessel. The output end of the second water injection pipe can output the coolant directly from the downcomer section, thus facilitating flow of more coolant from a lower core support plate to the core region to serve the function of core cooling.

The utility model relates to the technical field of laser depilation instruments, and discloses a movement structure of a laser depilation instrument, which comprises a depilation instrument main machine, a plurality of moving wheels are arranged at the lower end of the depilation instrument main machine, a depilation mechanism is arranged on one side of the depilation instrument main machine, and a movement cooling mechanism is arranged in the depilation instrument main machine. The machine core cooling mechanism comprises a water tank, a cooler, a cooling pipe, a laser generating end and a laser transmitting end, and the water tank is arranged at the bottom in the hair removing instrument main machine. According to the machine core cooling mechanism and the cooler, the cooling power can be increased according to the temperature of laser, and the cooling effect with the lower temperature is provided; and then rapid cooling is achieved through the cooling pipe, so that the cooling efficiency is improved while it is guaranteed that the laser power is increased, the better depilation effect is achieved through the device, and the thorough depilation effect is achieved.

A stator (100) for an axial flux machine, comprising: - stator members (201), each comprising: ∘ a ferromagnetic core (202); ∘ a coil (204); ∘ a sleeve (203) placed around the core (202), - a housing comprising a port adapted for supplying a cooling fluid, wherein: for any of the stator members (201), the sleeve (203) comprises a first (305, 900) and a second set of holes (303, 304), the sets each comprising one or more holes provided as openings in a sleeve wall (301, 302), and any of the holes comprised in the first set (305, 900) being in fluid communication with at least one hole comprised in the second set (303, 304), such that cooling fluid, for any of the stator members (201) at least partly flows via a path through the sleeve openings (305, 900, 303, 304), thereby flowing along and / or through the respective cores (202).