38results about How to "Large air volume" patented technology

The utility model provides a fan and a ventilation device.The fan comprises a first cover plate, a second cover plate and a plurality of fan blades, the first cover plate is annular, and a first ventilation opening is formed in the inner side of the first cover plate; the second cover plate and the first cover plate are oppositely arranged at an interval, and a second ventilation opening is formed between the outer edge of the second cover plate and the outer edge of the first cover plate; the multiple fan blades are arranged between the first cover plate and the second cover plate at intervals around the center line of the first ventilation opening. The ends, close to the center of the first ventilation opening, of the fan blades extend into the first ventilation opening, so that the ends, close to the first ventilation opening, of the fan blades can be set to be high, the area of the fan blades is large, and the air volume is increased; and the end, close to the center of the first ventilation opening, of each fan blade is in the step shape with the height gradually increased in the direction from the center of the first ventilation opening to the edge of the first ventilation opening, noise can be effectively reduced, and therefore the fan is low in noise while having large air volume.

The utility model provides a kind of high-speed fan, including: motor assembly;Fan shell, sleeve joint motor assembly, the direction of the air flow produced by the outer periphery of cooperation motor assembly is formed into air inlet end and air outlet end respectively, the surface of motor assembly located at air outlet end is equipped with several self central outward helical extension's air deflector;Annular air inlet cover, connect the air inlet end of fan shell;And arc air outlet cover, connect the air outlet end of fan shell, the outer wall of fan shell, the inner wall of arc air outlet cover is divided by air deflector and is formed into several helical air ducts arranged in ring, air flow produced by motor assembly is shunted as sub-air flow by helical air duct, and sub-air flow is independently emitted outward from the air outlet opening in the center of arc air outlet cover.The utility model can improve air duct structure, effectively increase the air output of fan under the premise of constant motor power, and improve the effect of silence.

The utility model relates to a kind of hot exhaust gas recovery circulation devices of mobile air conditioner, it mainly is in mobile air conditioner inside is equipped with a circulating device and the heat generated by the operation of air compressor is recycled and recycled.The hot exhaust gas recovery circulation device includes blower, heat dissipation element, water collecting tank and exhaust pipe.The blower is located in the rear end of the heat dissipation fin of mobile air conditioner, and the hot exhaust gas generated by the air compressor is discharged to the heat dissipation unit of water collecting tank, and the heat dissipation pipeline and filter cotton piece inhale lower temperature fresh air and cool down, and then transported to air outlet of air conditioner through exhaust pipe, increase the air output of the mobile air conditioner.The utility model reduces to normal temperature and purifies by blower sending hot exhaust gas of mobile air conditioner to heat dissipation element, and then transported to air outlet of air conditioner to enhance air volume, solve the emission and pollution problem of traditional mobile air conditioner hot exhaust gas.

The application relates to a blade, an impeller and a ventilation device, the blade comprises a plurality of control surfaces arranged in layers along the height direction of the blade, the blade comprises an arc-shaped leading edge, the distance between the leading edge and the central axis of the impeller is an inner diameter of the blade, and the inner diameters of the plurality of control surfaces are different from each other. The impeller of the application changes the design of the blade along the height direction of the blade under the same hub groove structure, so that the leading edge of the blade is designed by using different control points, and the shape of the groove for accommodating the motor of the hub is matched, the air volume is increased, the aerodynamic noise is reduced, the power consumption is reduced, and the aerodynamic performance of the ventilation device is improved.

This utility model relates to the field of mine ventilation equipment technology, specifically to an improved adjustable filter window for mine ventilation safety. It includes a duct body and an adjustment connection unit. The adjustment connection unit includes multiple fan blades, multiple connecting shafts, multiple connecting plates, a movable frame, a track plate, a drive component, a filter assembly, and an installation assembly. In use, the duct body is inserted into the mine's air intake pipe and fixed using the installation assembly. To increase the airflow of the duct body, the drive component is activated, causing the movable frame to move backward within the track plate. During this process, the movable frame, in conjunction with the strip groove, pulls the connecting plate to rotate, causing the fan blades below the connecting shaft to open, increasing the airflow intake area. To reduce the airflow of the duct body, simply move the movable frame in the opposite direction, closing the fan blades and reducing the airflow intake area. This method allows workers to flexibly adjust the ventilation volume according to actual ventilation needs, effectively improving ease of use.

The utility model provides a range hood which comprises a fan, an exhaust fume collecting hood with a bottom inlet and a fan frame, the fan is fixed on the fan frame and communicated with the bottom inlet, the forward side of the fan frame comprises a front cover plate, a ventilation opening is arranged on the front cover plate, an air inlet of the fan is positioned on the forward side, and the air inlet of the fan is communicated with the ventilation opening. The inner side of the front cover plate is connected with an adsorption module used for adsorbing volatile organic compounds, an adsorption inlet of the adsorption module is exposed out of the ventilation opening, the height of the adsorption module is larger than that of the center line of the air inlet, and a closed inner space is formed in the fan frame to communicate with the bottom inlet and an adsorption outlet of the adsorption module. According to the utility model, on one hand, pollutants are adsorbed, so that air flow purification is realized, treatment of pollutants such as VOCs in a kitchen is realized, and the problems of peculiar smell in the kitchen and the like are solved; and on the other hand, the negative pressure of a local area is improved, the problem that the flow speed of the whole area of the air inlet of the fan is uneven due to size reduction of the fan frame is solved, air volume is increased, and rotating speed and noise are reduced.

The utility model discloses an air volume adjusting device of a constant-displacement air conditioner, which relates to the technical field of air volume adjustment of air conditioners, and comprises a constant-displacement air inlet air conditioner, one end of the air inlet air conditioner is communicated with an air flow meter through a pipeline, and the other end of the air inlet air conditioner is communicated with a precision filter through a pipeline, adjustable electric valves are mounted on a pipeline between the air inlet air conditioner and the air flow meter and a pipeline between the air inlet air conditioner and the precision filter, and the other ends of the adjustable electric valves between the air inlet air conditioner and the air flow meter are connected with an air pump through pipelines; according to the utility model, a part of air is pumped out from the rear part of the system through the air pump and is injected into the pipeline between the air inlet air conditioner and the air flow meter, so that the purpose of increasing the air volume is achieved under the condition that the displacement of the air inlet air conditioner is not changed, and the air flow in the brake emission measuring instrument is controlled through the opening degree of the two adjustable electric valves.

The invention relates to a centrifugal impeller and a ventilation device using the same. The centrifugal impeller comprises a central part, a connecting part and a plurality of blades surrounding the central part, wherein the connecting part extends outwards from the central part and is connected to the blades; the blade is bent from the radial inner side to the radial outer side, and a first included angle (alpha) formed by a first tangent line (L1) of the windward side of the blade on the radial outer side and a second tangent line (L2) of the windward side of the blade on the radial inner side is not smaller than 140 degrees and smaller than 180 degrees. Compared with a traditional straight blade scheme, the backward bent blade has larger air volume and higher efficiency, and the centrifugal impeller and the ventilation device can have better air inlet volume and efficiency.

The application relates to the technical field of starting motors, and particularly discloses a fan heat dissipation type starting motor for a centrifugal pump, which comprises a base and a machine shell fixedly connected to the base, a strip-shaped air inlet is arranged on the machine shell and penetrates through the inside and outside of the machine shell, a filter screen for shielding dust is arranged in the strip-shaped air inlet, a rotor is arranged in the machine shell, and a transmission shaft penetrates through the rotor coaxially. At the beginning of starting, the fan blade cannot rotate at high speed, so that the starting response slow degree and the starting current size of the centrifugal pump can be reduced, the additional energy consumption loss of the motor at the initial stage of starting can be reduced, the windward area of the fan blade at the initial stage of starting of the starting motor is small, so that the rotating resistance of the fan blade can be reduced, the starting response slow degree and the starting current size of the centrifugal pump can be further reduced, and the additional energy consumption loss of the motor at the initial stage of starting can be further reduced.

The invention discloses a working face dust removal, spraying and fresh air system for a coal mine, and belongs to the technical field of coal mine underground environment governance and occupational health safety. The system comprises a track hoisting and moving device, a wet-type vortex dust removal fan, a spraying and dust falling device, a fresh air device and an automatic control system. The structural frame is hung on the moving trolley through the hanging chain and is driven by the driving main machine to move dynamically along the track. The dust removal fan adopts the combination of a radial mixing type impeller and a dewatering vortex wheel, so that powerful dust collection and dry and comfortable exhaust are realized; the spraying device realizes intelligent avoiding and spraying stopping through a personnel proximity sensor; the fresh air device is of a double-channel structure, and positive-pressure clean fresh air is provided for the breathing area through four-stage deep purification. The problems that traditional equipment is installed and fixed, functions are split, people are prone to getting wet, and breathing guarantee is lacked are solved, integrated cooperation of full-working-face dynamic cruise control, precise dust suppression and medical-grade fresh air supply is achieved, and the safety and comfort of underground operation are remarkably improved.

This utility model discloses an ice maker, including a housing with a receiving cavity. The receiving cavity contains an ice chamber, a condenser, and a cooling fan. The housing has air inlets and outlets on both sides. An air guide shroud is also provided inside the receiving cavity, covering the ice chamber to form a heat dissipation channel between the shroud and the outer wall of the ice chamber. The two ends of the heat dissipation channel are connected to the air inlets and outlets, respectively. The condenser is located at the outlet end of the heat dissipation channel. This utility model, by covering the ice chamber with an air guide shroud to form a heat dissipation channel between the shroud and the ice chamber, increases the airflow velocity as it flows through the heat dissipation channel towards the outlet. By placing the condenser at the outlet end of the heat dissipation channel, the airflow exiting the channel passes through the condenser, thereby increasing the airflow through the condenser and rapidly cooling it, thus enhancing the heat dissipation effect.

The application provides a cross-flow fan and an electronic device. The cross-flow fan comprises a housing mechanism, a driving mechanism and a fan blade. The housing mechanism is provided with a receiving cavity, an air inlet and an air outlet. The air inlet and the air outlet are arranged on the side surface of the housing mechanism and are in communication with the receiving cavity. The driving mechanism is installed in the receiving cavity. The driving mechanism comprises a rotor and a stator. The rotor is installed on one side of the stator and can rotate relative to the stator under the driving of the stator along the thickness direction of the cross-flow fan. The fan blade is installed in the receiving cavity and is arranged on the rotor and located on the side of the rotor away from the stator. The cross-flow fan can form a higher air volume, which is beneficial to improving the heat dissipation effect of the heating device in the electronic device.

The application relates to an outlet cooling device of a three-way catalyst drying furnace, and relates to the field of three-way catalyst processing devices, which comprises a supporting grid for placing three-way catalysts and a cooling box, the supporting grid is located on the cooling box, a fan is arranged in the cooling box, a wind guide cavity and a wind distribution cavity are arranged between the air outlet of the fan and the supporting grid, a wind guide plate is arranged on the side wall of the wind guide cavity, a first wind swinging unit for up-down wind swinging and a second wind swinging unit for left-right wind swinging are arranged in the wind distribution cavity, a driving assembly for driving the first wind swinging unit to swing is arranged on the cooling box, and the first wind swinging unit drives the second wind swinging unit to swing through a connecting assembly. The application has the effects of improving the uniformity of three-way catalyst cooling and effectively avoiding cracks of the three-way catalyst.

The utility model discloses a kind of air duct devices of electromagnetic valve auxiliary louver opening and closing air outlet, belong to transformer technical field, including upper seal plate, the inside wall of upper seal plate is equipped with mounting bracket and fan mounting plate, the mounting bracket is located in fan mounting plate, the upper seal plate another side wall is equipped with outer wind cover and position sensor, the position sensor is located in outer wind cover, the lower end of outer wind cover is equipped with protection assembly, the upper seal plate is equipped with fixed frame, the fixed frame is sequentially movably installed with multiple groups of self-vertical louver from top to bottom, the self-vertical louver is movably installed with connecting assembly;Change the existing air duct air outlet structure, increase auxiliary electrical element, so that axial flow fan can operate in better operating environment;Reduce wind resistance when operating;Reduce the operating current of fan;Increase the air volume of air outlet;Increase the service life of fan.

The invention discloses a fan, an air conditioner outdoor unit and an air conditioner. The fan comprises a driving mechanism, a first impeller and a second impeller. The first impeller comprises a first hub and a plurality of first blades arranged on the first hub, and the first blades are arranged in the circumferential direction of the first hub at intervals. The first hub is in transmission connection with the driving mechanism. The second impeller and the first impeller are connected in series and stacked in the axial direction of the fan, the second impeller comprises a second hub and a plurality of second blades arranged on the second hub, and the second blades are arranged in the circumferential direction of the second hub at intervals. And the second hub is in transmission connection with the driving mechanism. And the rotating direction of the first blade is the same as that of the second blade. The fan can improve the air outlet amount and is beneficial to improving the heat exchange efficiency of the outdoor unit of the air conditioner, so that the use experience of a user on the air conditioner is improved.

The utility model provides a kind of flat panel head shaking fan and fan lamp, it includes: fixed panel, the fixed panel back face is concave to form installation let -pass slot, installation through -hole is equipped in the groove bottom of the installation let -pass slot, the opening of the installation through -hole is formed fixed convex ring by protruding towards the inside space of the installation let -pass slot;Head shaking fan assembly, it includes: head shaking fan base, and fan blade, the bottom of the head shaking fan base is outwardly protruding drive shaft, the fan blade is installed in the free end of the drive shaft, the head shaking fan base drives the fan blade by the drive shaft, and the fan blade is partially accommodated in the installation let -pass slot while rotating and shaking head;The top edge of the head shaking fan base extends outward to form fixed convex edge, the bottom of the head shaking fan base protrudes the front surface of the fixed panel after passing the installation through -hole, and the fixed convex edge is abutted and fixed to the fixed convex ring, so that the head shaking fan base is partially accommodated in the installation let -pass slot.

The utility model provides a graphite chuck and a Czochralski single crystal furnace, relates to the technical field of Czochralski single crystals, and is used for solving the problems of equipment complexity and difficulty in accurately covering the surface of a seed crystal in related technologies, the graphite chuck comprises a chuck body, the chuck body comprises a cylindrical part and an inverted cone frustum part which are connected, the cylindrical part is used for connecting a heavy punch, and the inverted cone frustum part is used for connecting a seed crystal; the inverted cone frustum piece is used for clamping a seed crystal; in the axial direction of the cylindrical part, the cylindrical part is provided with a first end face and a second end face which are opposite, the inverted cone frustum part is provided with a large bottom face and a small bottom face which are opposite, and the large bottom face is connected to the first end face and completely coincides with the first end face; a plurality of flow guide grooves distributed in the circumferential direction of the chuck body at intervals are formed in the peripheral wall of the chuck body, the flow guide grooves penetrate through the second end face from the small bottom face, and the flow guide grooves are distributed in a radial shape in the direction, facing the second end face, of the small bottom face. On the premise that an external argon gas supply system does not need to be transformed, the argon gas volume and the argon gas flow speed are increased, gas flow dissipation is avoided, and the argon gas utilization rate is increased.

The utility model belongs to the technical field of fan lamps, and particularly relates to a bladeless fan lamp. Comprising a cover body assembly, a draught fan assembly arranged in the cover body assembly and a lamp body assembly which is arranged in the cover body assembly and located in front of the draught fan assembly, an air outlet is formed in the cover body assembly and surrounds the periphery of the lamp body assembly, and the side, facing the draught fan assembly, of the lamp body assembly is provided with an air inlet. And an arc-shaped curved surface which is gradually raised from the periphery to the middle part to the direction close to the fan assembly is arranged. According to the fan lamp, the fan assembly and the lamp body assembly are both arranged in the cover body assembly, the problem that fan blades of an existing fan lamp are exposed is effectively solved, the fan blades are shielded by the cover body assembly, mistaken touch is avoided, the air outlet is formed around the periphery of the lamp body assembly, and the regional air outlet effect is achieved; the fan assembly is matched with the arc-shaped curved surface so that guiding and distribution of airflow can be optimized, the air supply effect is improved, compared with a traditional roller-shaped perfusion type fan, the fan lamp is larger in air output, and the use performance and user experience of the fan lamp are further improved.

The utility model discloses an air conditioner, include: casing, heat exchanger subassembly and air duct subassembly. The rear side of casing forms the air inlet, and the front side of casing forms the air outlet, air duct subassembly is located in the casing and is located between the air outlet and heat exchanger subassembly, and air duct subassembly includes a plurality of air duct parts that are sequentially spaced along the up-down direction, and each air duct part includes an air duct volute and a centrifugal fan wheel arranged in the air duct volute, at least one side of the air duct volute in the up-down direction forms the airflow inlet, and the front side of the air duct volute forms the airflow outlet, and the airflow outlet faces the air outlet and communicates with the air outlet. According to the air conditioner of the utility model embodiment, the air conditioner can have a large air volume, and the performance of the air conditioner is improved. Moreover, compared with the use of a cross-flow fan wheel, the use of a plurality of centrifugal fan wheels arranged along the up-down direction can reduce the height dimension of the whole machine in the up-down direction under the condition that the maximum air volume is the same, save space, and facilitate the carrying or placing of the air conditioner.

The utility model provides a kind of heat exchanger assembly and air conditioner, wherein, heat exchanger assembly includes shunt and two or more heat exchangers, shunt is used to shunt the air of the first side of heat exchanger assembly to each heat exchanger;Shunt is movable, to adjust the air volume shunted into each heat exchanger.When the heat exchanger assembly of the utility model is applied to air conditioner, the first side of heat exchanger assembly can be set as windward side when air conditioner is in heating operation.Due to shunt, the air volume shunted into each heat exchanger can be adjusted by moving, when air conditioner is in heating operation, and there is temperature difference in each heat exchanger of heat exchanger assembly, shunt can be moved, the air volume shunted into high-temperature heat exchanger is increased, and the air volume shunted into low-temperature heat exchanger is reduced, so it is beneficial to make the airflow temperature consistent after each heat exchanger heat exchange, to improve the uniformity of each heat exchanger outlet air temperature, improve the comfort and experience of user use.

The utility model relates to radiator technical field especially is a kind of radiator base with air duct, including lower cover, upper cover, sealing cover, turbine fan and circuit board, sealing cover is provided with air inlet, annular air duct plate and two airflow cavities, one air outlet is set up in the both sides of annular air duct plate, one airflow cavity is communicated with the inner chamber of annular air duct plate via one air outlet, turbine fan is located in annular air duct plate, air inlet is correspondingly set with the air inlet end of turbine fan, the bottom surface of lower cover is set with the through-hole for corresponding intercommunication with air inlet, dust cover is detachably installed at through-hole, upper cover is set with two groups of air outlet groups, two groups of air outlet groups are respectively communicated with two airflow cavities one-to-one, and each group of air outlet group includes multiple air outlets. The structure of the application is simple, the volume is thin and flat, the air volume is large, the heat dissipation effect is good, and the universality is good, can be used for electric game special notebook computer and general notebook computer.

The application belongs to the technical field of energy storage equipment, and particularly relates to an outdoor intelligent energy storage equipment; the outdoor intelligent energy storage equipment comprises an energy storage battery cabinet, a cabinet door is arranged on the energy storage battery cabinet, a ventilation opening is arranged on the cabinet body of the energy storage battery cabinet, and a plurality of partitions are fixedly connected in the energy storage battery cabinet; a plurality of battery groups are arranged in the energy storage battery cabinet, and the battery groups are arranged above each partition; the outdoor intelligent energy storage equipment further comprises a heat dissipation unit; the heat dissipation unit is arranged in the energy storage battery cabinet, the heat dissipation unit can dissipate heat in the energy storage battery cabinet, the heat dissipation effect of the region above each partition can be adjusted according to the temperature of the battery group above each partition, the heat dissipation effect of each region is adjusted according to the different heat generation amounts of the regions, and the region with a large heat generation amount is mainly subjected to heat dissipation.

The application provides a chemical raw material dust absorption device, and relates to the field of dust absorption, which comprises a main air pipe, a plurality of branch air pipes are connected to the bottom of the main air pipe, a self-adapting valve assembly is arranged on the inner side of the branch air pipe, a dust bin in a spherical shape is connected to the other end of the branch air pipe, a venturi pipe is arranged below the dust bin, a transmission assembly for providing power is arranged on the outer side of the throat of the venturi pipe, the transmission assembly is connected with the valve assembly, and the transmission assembly comprises a piston penetrating through the throat of the venturi pipe. The linkage structure of the venturi pipe, the piston, the transmission assembly and the self-adapting valve assembly is arranged, the intelligent distribution of the system air volume is realized, and the energy consumption is significantly reduced. When the dust concentration of a dust production point increases, the airflow velocity of the throat of the venturi pipe is accelerated, the static pressure is reduced, the piston and the transmission shaft are driven to move under the action of the pressure difference, the air valve is automatically opened, and the air volume of the branch is increased.

The application provides a data analysis processing method and system for e-commerce users, and belongs to the technical field of data analysis. Specifically, the title data of a title reference commodity is used to determine a test analysis scheme for title update processing of the newly listed commodity by updating the processing result, test data after title update processing is used to perform keyword update processing of the newly listed commodity, and whether the title reference commodity can be delisted is determined through the keyword of the title of the newly listed commodity and the update processing data of the comment data of the e-commerce user, thereby improving the reliability of the title update processing of the newly listed commodity.

The utility model belongs to the technical field of heat pumps, and particularly relates to a heat pump outdoor unit and heat pump equipment. The heat pump outdoor unit comprises a shell and a heat exchange part, the shell is provided with a heat exchange cavity, a notch used for communicating the heat exchange cavity with the external environment is formed in the rear side of the shell, and the heat exchange part is arranged in the heat exchange cavity and corresponds to the notch. The shell is provided with a plurality of air inlets communicating with the heat exchange cavity, and the multiple air inlets are distributed in the peripheral side of the heat exchange piece in the front-back direction of the shell. The heat pump outdoor unit is used for solving the problem that the heat exchange amount is affected due to the fact that the air inlet amount of the edge area of the heat exchanger of the outdoor unit is small.

This invention discloses a handheld high-speed fan, comprising a first column and a second column. A ducted motor is housed inside the first column, with fan blades at the bottom of the ducted motor. A battery is housed inside the second column, and the ducted motor is electrically connected to the battery. An air inlet is located at the connection point of the first and second columns, and an air outlet is located at the first end of the first column furthest from the second column. A guide plate is provided at the air outlet, with the upper part serving as a converging section and the lower part as an air collecting section. The guide plate and the air outlet form an air outlet channel. In this invention, the narrowing design of the air outlet and the guide plate results in a narrowing of the internal airflow channel from bottom to top, accelerating the airflow. The airflow then flows along the guide surface of the guide plate, and finally, the symmetrical airflows on both sides converge at the center of the convex surface, thus being ejected vertically. A high-pressure zone is formed at the center of the guide plate, increasing the wind pressure and creating a vortex jet effect. This reduces airflow loss and ensures effective airflow and speed.

This invention discloses a versatile wax powder spraying device, specifically relating to the field of wax powder production. It includes a centrifugal tower with a powder spraying mechanism connected to its top. Air supply pipes are distributed within the tower and connected to the air supply mechanism. An air outlet is located at the top of the tower, and an exhaust port is located at the bottom, connected to a separation mechanism. A discharge port is located at the bottom of the tower. The air supply mechanism connects to a heater and a fan. The fan and powder spraying mechanism are connected via a pneumatic transmission mechanism. This transmission mechanism allows for different types of wax powder to be produced, with varying pressures in the powder spraying mechanism. The fan speed is adjusted accordingly to change the air intake. This method is suitable for producing different types of wax powder while ensuring quality during the production of various wax powders.

This application relates to a fresh air module and an air conditioner. The fresh air module includes: a housing, a fresh air inlet, a first air inlet, a second air inlet, and an air outlet. The housing includes an indoor side, an outdoor side, and a duct side. The housing also includes an upper air duct and a lower air duct, which are connected to each other via a fan. The fresh air inlet is located on the outdoor side and connects to the outside, and is connected to the upper air duct via a fresh air channel. The first air inlet is located on the outdoor side and connects to the indoor side, and is connected to the upper air duct via a first circulation air duct. The second air inlet is located on the outdoor side and connects to the indoor side, and is connected to the upper air duct via a second circulation air duct. The first air inlet and the second air inlet are spaced apart on either side of the fresh air inlet.

The utility model discloses a kind of heating cover assemblies of clothes dryer, including main casing, the main casing includes bottom seat, the top surface of bottom seat is formed with the front side baffle portion extending upwards in front side, the top surface of bottom seat is formed with the middle baffle portion extending upwards in middle part, the top surface of bottom seat is formed with the right side baffle portion in right side, the inner side wall at the rear portion of right side baffle portion is formed with the rear baffle portion extending obliquely left and rearwards;It has two condensers and an evaporator, so that its condensation drying volume increases, to increase the air volume of hot air, improve drying effect, and the bottom seat at the lower side of its horizontal placement plate is directly formed entire water receiving structure, and directly flows into the water receiving tank at rear, so that the water inlet pipe of water pump only needs to be inserted into water receiving tank, it is convenient to install, and use effect is good.

The utility model discloses an air duct assembly and an electrical cabinet. The air duct assembly comprises a first housing and a second housing. The first shell is provided with a first air duct; the second shell and the first shell are arranged in the first direction, and the second shell is provided with a second air duct; the second shell is suitable for being matched with the first shell so that the first air channel can communicate with the second air channel. The second shell at least protrudes relative to one surface of the first shell so as to guarantee the heat dissipation effect or be conveniently connected with other elements, the second shell is further suitable for being separated relative to the first shell, so that the elements are allowed to be mounted or dismounted in the first direction, only the second shell needs to be separated from the first shell, the first shell does not need to be dismounted, and the mounting and dismounting efficiency is improved. Therefore, the maintenance is more convenient.