34results about How to "Increase air volume" patented technology

The present disclosure relates to an axial flow fan blade, a fan assembly, an air conditioner outdoor unit and an air conditioner. The axial flow fan blade comprises a hub and a plurality of blades arranged on the outer side of the hub, each blade comprising a pressure surface and a suction surface arranged oppositely, each blade comprising a blade inner edge and a blade outer edge arranged oppositely, and each blade further comprising a blade leading edge and a blade trailing edge arranged oppositely. Each blade is divided into a first region, a second region and a third region in a circumferential direction. The first included angle of the first region, the second included angle of the second region and the third included angle of the third region are selected to be in a ratio of 1:1.25-1.9:1.25-1.9.

The application relates to the technical field of heating equipment, and provides a heating air outlet device and a bathroom heater. The heating air outlet device comprises a mounting bracket and a heating module. A plurality of mounting cavities are formed in the mounting bracket, and the mounting cavities form air passing channels for external airflow to pass through. The heating module comprises a plurality of heating blocks. The plurality of heating blocks are respectively and correspondingly mounted in the plurality of mounting cavities along a first direction, and the plurality of heating blocks are arranged in a staggered manner along the first direction. The mounting heights of at least two heating blocks along the first direction are different. The heating air outlet device provided by the application can construct heating structures with different shapes according to requirements, and the mounting heights of the heating blocks can be correspondingly set according to the air volume before the air enters the respective mounting cavities, so that the heat exchange efficiency of airflow and the corresponding heating blocks in the part with relatively small air volume is improved, and the problem of poor local heat dissipation effect of the heating air outlet device is solved.

The utility model discloses an air conditioner, the air conditioner includes: casing and ventilation heat exchange component, the length direction of casing is up and down direction, one of left wall surface and right wall surface of casing is first side wall, and the other is second side wall, and the air outlet of air conditioner forms on first side wall and / or the front wall surface of casing, and the intersection of second side wall and at least one of rear wall surface and front wall surface of casing forms into chamfered corner, and at least part of the air inlet of air conditioner forms on chamfered corner, ventilation heat exchange component is located in casing, and is used to inhale airflow from air inlet, and makes airflow send out from air outlet after heat exchange with airflow. According to the air conditioner of the utility model, when being applied to wall corner, the rear wall can be set to face rear wall, the second side wall can be set to face side wall, the air inlet is set on chamfered corner, the air inlet is not easy to be blocked by wall, and it is favorable to improve air intake.

The application relates to the technical field of kitchen appliances, and discloses an oven. The oven comprises an inner container, the inner container is provided with an inner cavity; a fan cover is located in the inner cavity to divide the inner cavity into a cooking cavity and a hot air cavity, the fan cover comprises: a flat plate structure, the flat plate structure is opposite to a first side plate of the inner container, the flat plate structure is provided with an air inlet part, the air inlet part is communicated with the cooking cavity and the hot air cavity; a flow guide structure is arranged on the circumferential side of the flat plate structure; along the circumferential side of the flow guide structure, the flow guide structure and the inner wall of the opposite inner container are both provided with an air outlet spacing; a first fan is located in the hot air cavity, air in the hot air cavity enters the cooking cavity through the air outlet spacing, and air in the cooking cavity enters the hot air cavity through the air inlet part; wherein the air outlet spacing is negatively correlated with the distance from the side edge of the flat plate structure corresponding to the flow guide structure to the axis of the first fan. The oven provided by the application has high cooking efficiency and good uniformity of heat distribution in the cooking cavity.

The application discloses a power monitoring multifunctional instrument convenient to install, and relates to the technical field of multifunctional instruments.The power monitoring multifunctional instrument convenient to install comprises a protection device.The power monitoring multifunctional instrument convenient to install is characterized in that a cover plate slides in the inner side of a slide rail, so that the cover plate is convenient to disassemble and place components;the monitoring instrument is supported by a supporting plate, so that the monitoring instrument is convenient to fix;the monitoring instrument is extruded by a clamping mechanism, so that the clamping mechanism can fix components;the components are reduced to shake, the components are reduced to shake in the equipment, the stability of the components is improved;air flow is transported into the protection shell by a treatment device, so that the treatment device can ventilate and radiate heat, the temperature of the components in the equipment is prevented from being too high, the components are prevented from malfunctioning, moisture in the air flow is absorbed during the air supply of the treatment device, so that water vapor and dust are reduced to enter, the pollution of the equipment by the outside is reduced, and the equipment is kept to normally operate.

The application relates to a high-efficiency energy-saving fan blade structure, which comprises a hub and a plurality of blades installed on the hub, the blade surface is provided with a plurality of concave lines, and a convex reinforcing rib is arranged between the blade and the hub. The application has the effect of improving the air volume under the condition of equal power.

The utility model belongs to the field of warming stove, concretely relates to a kind of multi-section catalytic combustion function's warming stove, including furnace body, furnace cover and detachable furnace head, the furnace body hollow setting, the furnace cover is set in the top of furnace body, detachable catalyst sheet layer is set in the furnace head, the inside of the top of furnace cover is fixedly provided with sleeve, the sleeve is set corresponding with the furnace head position under the furnace body, furnace cover clamping state;The inside lower part of the sleeve is detachably provided with at least one layer of catalyst sheet layer;The sleeve cross section position corresponding vent hole is set on the furnace cover;The warming stove adopts the unique sleeve and multilayer catalyst installation structure design, can effectively reduce the escape of fuel vapor, and improve the combustion efficiency and utilization of fuel, reduce the emission of TVOC.

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.

This invention provides a rear-mounted guide vane with a cylindrical body for an axial flow fan, belonging to the field of ventilation equipment technology. It solves the problems of insufficient airflow or low static pressure efficiency in the high static pressure zone in existing technologies. This invention includes a guide vane body, guide vane blades, and a central hub. The two sides of the guide vane body are the outlet side and the inlet side, respectively, with the diameter of the outlet side being larger than that of the inlet side. The guide vane body is integrally formed and has a conical ring shape. The inner wall of the guide vane body forms a first mounting surface, which is a conical ring structure. The central hub is ring-shaped, and several mounting protrusions are formed on one side of the central hub. The outer surface of the central hub and the mounting protrusions forms a second mounting surface. The guide vane blades are numerous and arranged in a circumferential array, fixed between the first and second mounting surfaces. The cross-section of the guide vane blades is a thin plate structure of uniform thickness with an arc shape. This invention has the advantages of reducing turbulence, increasing airflow in the high static pressure zone, high static pressure efficiency, and increased range.

This utility model discloses a heat exchange device and an electrical cabinet. The heat exchange device is used in a cabinet with a parallel cabinet surface and includes a shell and a heat exchange unit. A receiving cavity is formed inside the shell, and the shell has an exhaust port and a first air inlet. The heat exchange unit is placed in the receiving cavity. The heat exchange unit has an inner cavity communicating with the corresponding exhaust port and a cooling fan installed at the exhaust port. It includes two heat exchange sections and two baffles perpendicular to the X-axis direction. The two heat exchange sections are inclined relative to both the Y-axis and Z-axis directions. The two baffles connect the two heat exchange sections at their respective ends along the X-axis direction. The inner cavity is connected to the first air inlet only through air ducts. The cooling fan drives airflow from the first air inlet through each air duct to the exhaust port. The electrical cabinet includes the above-mentioned heat exchange device. This application still has high heat dissipation efficiency when the cabinets are parallel.

The utility model relates to air conditioning technical field, concretely provides a mobile air conditioner, aims at solving the problem of straight blowing user of air outlet and poor indoor air circulation efficiency. For this purpose, the mobile air conditioner of the utility model includes: the casing, the inside is limited to have indoor heat exchange cavity, and the top cover plate of casing is equipped with the indoor air outlet of indoor heat exchange cavity, at least one indoor heat exchanger is arranged in indoor heat exchange cavity, and indoor heat exchanger is structured as the multi -section heat exchanger of bended connection, and the side plate of casing is equipped with indoor air inlet all on corresponding indoor heat exchanger, and the top of indoor heat exchanger is set up and is in abutment with casing and is equipped with the vent of air duct cover plate, and the lower plate surface of air duct cover plate is set up and is arranged along the circumference of indoor heat exchanger, and indoor fan is arranged between vent and indoor air outlet, and indoor fan is axial flow fan. The application can make the air flow of air outlet to spray and flow out upwards, then disperses and radiates to the four directions, and the circulation efficiency of indoor air is improved.

This utility model discloses a light source module with uniform heat dissipation, relating to the field of heat dissipation devices. The light source module includes: a lamp body, a heat dissipation pipe, an air guide shell, and a first heat sink. A first heat source and a second heat source are located on the left and right sides of the lamp body. The heat dissipation pipe includes a first section and a second section. The air guide shell includes an air duct, an air inlet, a first air outlet, and a second air outlet. The air duct has a recessed internal structure. The first air outlet is located on the left side of the air duct, the second air outlet is located on the right side of the air duct, and the air inlet is located in the middle of the air duct. The first section of the heat dissipation pipe is attached to the first heat source, and the first heat sink is attached to the second heat source. The air guide shell is attached to the lamp body. By utilizing the heat dissipation pipe and heat sink to absorb and dissipate heat from the heat sources, and in conjunction with the air guide shell, uniform heat dissipation is achieved for heat sources with varying heat levels. Even using a single fan can achieve efficient heat dissipation, reducing operating costs.

A mixed-flow ventilation fan includes a base plate and a panel that snaps onto it. An exhaust pipe is connected to the rear of the base plate. An air inlet is provided on the panel, communicating with the exhaust pipe on the base plate. A motor mount is connected to the inner wall of the exhaust pipe via several guide vanes. The motor mount is fixed to the central axis of the exhaust pipe by the guide vanes. A drive motor is installed inside the motor mount, and a front fan blade is mounted on the main shaft of the drive motor. The front fan blade rotates inside the exhaust pipe, drawing in air from the air inlet and expelling it from the rear of the exhaust pipe. The beneficial effects of this invention are: the front fan blade is a mixed-flow fan blade, and combined with an optimized number of blades and a reasonable design of the inclination angle, curvature, and angle of attack of the inner and outer edges of the blades, the blades can efficiently perform work on the air during rotation, generating excellent airflow characteristics that balance large air volume and high air pressure.

This application relates to the field of fan technology, disclosing a fan and a range hood. The fan includes: a volute casing, including annular walls; and an impeller located inside the volute casing. In the axial section of the fan, the annular walls bulge towards the side away from the axis, and the outer annular wall surface of the impeller also bulges towards the side away from the axis. This improves the fan's airflow and air pressure output capacity, increases energy efficiency and air volume, and reduces noise.

The application discloses an air conditioner indoor unit, and belongs to the technical field of household appliances. The air conditioner indoor unit comprises a casing, a heat exchanger, a fan and an air duct piece. The casing is provided with a casing air inlet and a casing air outlet. The heat exchanger is arranged in the casing, and the fan and the air duct piece are arranged in the casing. The air duct piece comprises a containing part, an air duct part and a main body part. The containing part is used for containing the fan, and is provided with an air inlet part for air to enter the containing part. The air duct part is defined to form a first air duct, which is communicated with the containing part. The main body part is defined to form a second air duct, which is communicated with the first air duct. An air inlet end of the second air duct is arranged towards the casing air inlet, and an air outlet end of the second air duct is arranged towards a windward side of the heat exchanger. The inner diameter of the second air duct decreases first and then increases along the flow direction of the airflow, so that when the airflow flows through the second air duct, a negative pressure is formed in the second air duct, thereby enabling the air outside the casing to flow into the second air duct from the casing air inlet.

This invention relates to the field of air conditioning technology, and more specifically, to an air deflector assembly and an air conditioner. The air deflector assembly includes a main air deflector and a secondary air deflector; the main air deflector has a first air guide hole in its opening area, and the secondary air deflector has a second air guide hole in its opening area, the diameter of the second air guide hole being smaller than the diameter of the first air guide hole; the secondary air deflector is movable along the main air deflector, and can be moved to a zero-wind-feel position and a soft-wind position, the secondary air deflector in the zero-wind-feel position being opposite to the opening area of ​​the main air deflector, and the secondary air deflector in the soft-wind position being offset from the opening area of ​​the main air deflector.

The application discloses a centrifugal fan air outlet structure, a fan applying the same and a combined fan, and belongs to the technical field of centrifugal fans. The centrifugal fan air outlet structure comprises an outer shell plate, an air outlet and an air inlet. The air inlet is arranged on one side wall of the outer shell plate. The other side of the outer shell plate is open to form an opening. The air outlet is arranged on one end of the outer shell plate. The centrifugal fan air outlet structure further comprises a wind guide part. The wind guide part is arranged on the upper edge of the outer shell plate connected with the air outlet. When viewed along the air outlet direction of the air outlet, the included angle between the inner side of the wind guide part facing the inner cavity and the horizontal plane is B, and 0° < B ≤ 15°. The flow rate difference of the air inlet is adjusted through the inclination angle of the wind guide part, so that the airflow turbulence at the outlet is reduced, the noise of the fan is reduced, and low-pressure surge is eliminated.

This utility model discloses an automotive electromagnetic switch with a wind-driven structure, belonging to the field of electromagnetic switch technology. It solves the problem that existing electromagnetic switches for automotive starters generate heat in the internal electromagnetic coil, reducing the stability and shortening the lifespan of the switch. The switch includes an electromagnetic switch body with a heat dissipation assembly on its exterior. The curved surface of the electromagnetic switch body has linearly arrayed connecting grooves. An airflow guide increases the air intake at the front end of the sleeve, and the air passes through the sleeve and is discharged. A heat-conducting plate absorbs heat from inside the electromagnetic switch body and conducts it to a heat sink. During the airflow through the sleeve, heat is carried away from the heat sink, achieving cooling of the electromagnetic switch body. This provides protection for the electromagnetic switch body and improves its stability and lifespan.

The application relates to the air conditioning technical field, in particular to an air conditioning system, a vehicle and an operation method of the air conditioning system, wherein the air conditioning system comprises a compressor, a pipeline switching component, an outdoor heat exchanger and a throttling device which are sequentially connected in series, the air conditioning system further comprises a first indoor heat exchanger, a second indoor heat exchanger and a valve mechanism; the first indoor heat exchanger and the second indoor heat exchanger are both arranged in parallel between the throttling device and the pipeline switching component; the valve mechanism is used for selectively opening the pipeline of one of the first indoor heat exchanger and the second indoor heat exchanger or opening the pipelines of the first indoor heat exchanger and the second indoor heat exchanger according to the size of indoor load. According to the technical scheme of the application, the first indoor heat exchanger and the second indoor heat exchanger can be independently operated or simultaneously operated according to the size of indoor load, so that the adaptability is better, and the use experience of users can be improved.

The application provides a coke discharging dust removal air duct maintenance method and relates to the technical field of coking operation, which comprises the following steps: S1: collecting the images of the dust removal pipeline and the box body for abnormal texture detection, performing segmented nondestructive testing on the dust removal pipeline and the box body by using a thermal anemograph, a metal thickness gauge and a pressure transmitter, finding out defects according to the air volume loss and the differential pressure changes of each part, and performing accurate positioning of the defects; and S2: according to the nondestructive testing result, repairing the defect positions of the weak pipeline wall thickness and performing surface corrosion prevention treatment; the coke oven coke discharging dust removal system air duct leakage points and weak positions are repaired and the technical transformation of the sealing position of the flap valve is performed, so that the suction force and the air volume of the air duct system are greatly improved, the original design working condition is restored, the smoke and dust generated during coke discharging are effectively captured, the economic benefit, the environmental protection benefit and the social benefit are multiple wins, and a new situation of safe production and environmental protection work is effectively created.

This application discloses a microchannel heat exchanger, its fabrication method, and an air conditioner. The fabrication method includes: providing a flat tube and fins; inserting the flat tube into the fins to pre-fix the flat tube and fins; providing a manifold; pre-fixing the manifold and flat tube and connecting the manifold and flat tube; immersing the manifold in a solder bath to weld it to the flat tube by dip welding; and introducing fluid into the flat tube to cause it to expand under fluid pressure and form an expansion connection with the fins. The fins have a hydrophilic layer or a hydrophobic layer. The microchannel heat exchanger, its fabrication method, and the air conditioner of this application can improve heat exchange performance while ensuring the uniformity and stability of the hydrophilic or hydrophobic layer on the fins.

The utility model discloses a kind of air conditioners, the air conditioner includes: shell and ventilation heat exchange component, the length direction of shell is up-down direction, one of left wall surface and right wall surface of shell is first side wall, the other is second side wall, the air outlet of air conditioner is formed on first side wall and / or the front wall surface of shell, the air inlet of air conditioner includes side air inlet formed on second side wall, and rear air inlet formed on the rear wall surface of shell;Ventilation heat exchange component is located in shell, and for inhaling airflow from air inlet, after heat exchange with airflow, make airflow send out from air outlet. According to the air conditioner of the utility model, when applied to wall corner, rear wall is set to rear wall, second side wall is set to side wall, at this time, shell has greater area to set air inlet, can improve air intake, and air outlet is away from rear wall and / or away from side wall, not easy to form return air short circuit problem, can reduce air volume loss.

This utility model relates to a humidifying and heating dual-purpose floor blower, including a blower body. An air outlet is provided at the front end of the blower body. Threaded fixing grooves are provided on the left and right sides of the upper and lower surfaces of the blower body. An air expansion hood is sleeved onto the front end of the blower body. Mounting plates are fixedly connected to the upper and lower ends of one end of the air expansion hood. Through-hole slots are provided on the left and right sides of the interior of the two mounting plates. Positioning grooves are provided on the left and right sides of the through-hole slots. Fasteners are provided between the mounting plates and the air expansion hood. A snap-fit ​​component is fixedly connected to one end of the fastener. Elastic components are provided at one end of each of the two mounting plates. Clamping components are fixedly connected to one end of each of the two elastic components for installation between the air expansion hood and the blower body. By installing the air expansion hood, the blowing area of ​​the blower is increased, improving work efficiency and saving time and effort.

This utility model discloses an outdoor unit for an air conditioner and an air conditioner having the same. The outdoor unit includes an air duct, fan blades, and an air guide ring. The cross-section of the air guide ring along the air outlet direction includes a first air guide section and a second air guide section. The airflow passes through the second air guide section and the first air guide section before exiting the outdoor unit. The cross-sectional projection of the first air guide section is an inclined straight line, while the cross-sectional projection of the second air guide section is a plurality of sequentially connected arcs. By sequentially arranging the air guide ring at the end of the air duct into a first air guide section and a second air guide section along the air outlet direction, and by setting the cross-section of the first air guide section as an inclined straight line and the cross-section of the second air guide section as a continuous arc segment, the first air guide section can better guide the airflow to the fan blades for driving circulation. The gap between the second air guide section and the fan blades is relatively small, increasing the airflow of the outdoor unit, reducing the rotational speed of the outdoor unit, thereby reducing the operating noise of the outdoor unit and improving the user experience.

The embodiment of the application provides a fresh air conditioner, which comprises a shell, a fresh air fan and a jet structure, a fresh air duct and an indoor air duct are arranged in the shell, the fresh air duct and the indoor air duct are communicated, the fresh air fan and the jet structure are arranged in the fresh air duct respectively, the fresh air fan is used for sucking outdoor air into the fresh air duct, and the jet structure is used for spraying the outdoor air introduced by the fresh air fan into the indoor air duct.

This application belongs to the technical field of air extraction equipment, specifically an electric air extraction pump, including a main unit and an impeller. The end of the main unit has an air inlet structure that connects to the air inlet channel. The impeller includes a shaft and multiple blades arranged around the shaft. The root end face of each blade has a recessed portion extending from the air inlet side of the impeller to the air outlet side, so that a recessed area is formed around the periphery of the shaft on the air inlet side of the impeller. By setting the recessed portion at the root of the blade, the recessed portions of each blade are combined to form an annular recessed area on the air inlet side of the impeller near the shaft. Therefore, when the impeller rotates, the air inlet space can be expanded, the air volume can be increased, and the extraction efficiency can be improved. By setting the recessed portion at the root of the blade near the shaft, the flow space can be expanded directly in the initial area where the airflow enters, avoiding the obstruction of the airflow by the blade root, allowing the air to flow more smoothly to the center of the impeller and reducing flow resistance.

This application provides a centrifugal fan and electronic device, relating to the field of fan technology. The centrifugal fan provided by this application includes: a volute housing, including an air inlet surface along its own axial direction; fan blades disposed within the volute housing; a first air outlet located on a first sidewall in the radial direction of the volute housing; and an air inlet located on the air inlet surface and directly opposite the fan blades. The edge of the air inlet is constructed as an annular inclined surface formed by splicing multiple arc-shaped inclined surfaces. At least two of the multiple arc-shaped inclined surfaces have different inclination angles. The multiple arc-shaped inclined surfaces include a first arc-shaped inclined surface, which corresponds to the first air outlet along the radial direction of the fan blades. The inclination angle of the first arc-shaped inclined surface is greater than or equal to 120° and less than or equal to 130°, and the inclination angle is the angle between the arc-shaped inclined surface and the air inlet surface. This application provides a centrifugal fan and electronic device that can improve air intake efficiency and reduce noise.

The application relates to the technical field of agricultural greenhouses, in particular to a ventilation device for an agricultural greenhouse, which comprises a wind guide pipe, a rectifier pipe, a first electromagnet and a second electromagnet, a plurality of one-way valves are uniformly arranged on the lower part of the side wall of the wind guide pipe in a circumferential direction, when the one-way valves are opened, the gas in the rectifier pipe enters the wind guide pipe through the one-way valves; the openings at the two ends of the rectifier pipe are provided with radially inwardly extending reduced-diameter parts, the inner side of the reduced-diameter parts is in sealing cooperation with the outer side of the wind guide pipe; the first electromagnet is fixedly connected to the upper part of the inner side of the rectifier pipe, the second electromagnet is located below the first electromagnet; the outer side of the second electromagnet is in sliding cooperation with the inner side of the rectifier pipe, the inner side of the second electromagnet is in sliding gap cooperation with the outer side of the wind guide pipe; the second electromagnet and the rectifier pipe are connected with a reset spring. The device can realize air convection in the greenhouse, reduce the air flow speed, reduce energy consumption and avoid crop damage.

The utility model discloses a kind of blade for centrifugal fan, centrifugal fan and fan, it is related to the field of centrifugal fan, wherein the blade main body of blade for centrifugal fan is located and is equipped with inverted arc surface structure on the side of leading edge suction surface, and inverted round structure is equipped on the side of leading edge pressure surface, blade main body upper part is set away from axis in the direction close to front disc, and lower part is gradually reduced in the direction close to rear disc towards axis distance;Centrifugal fan includes front disc, rear disc and above-mentioned blade, and the outer edge of front disc and rear disc is integrally formed with first reinforcing ring, and rear disc middle part is integrally formed with second reinforcing ring, and arch bridge structure is arranged between adjacent blade main body, and the area of arch bridge structure, upper arch height, arch bridge length and outlet distance ratio are limited;Fan includes above-mentioned centrifugal fan, and the application achieves the technical effects such as optimizing blade structure, enhancing fan strength, improving airflow flow performance.

The present application relates to the technical field of household appliances, and discloses an oil fume exhauster, which comprises a smoke collecting cavity, a first smoke collecting part and a second smoke collecting part, the first smoke collecting part is provided with an inlet, the second smoke collecting part is connected to one side of the top of the first smoke collecting part and communicates with the first smoke collecting part, the length of the second smoke collecting part is less than that of the first smoke collecting part, a box body is arranged in the smoke collecting cavity, the box body is arranged on the top of the smoke collecting cavity and simultaneously communicates with the first smoke collecting part and the second smoke collecting part, and the second smoke collecting part forms a transition and drainage part between the first smoke collecting part and the fan, compared with the related art, the top of the smoke collecting cavity is contracted from both sides to the middle, the space on both sides of the top of the smoke collecting cavity is reduced, the vortex formed at the cavity on both sides is reduced, the air volume of the fan is improved, and the noise is reduced.