32results about How to "Soft airflow" patented technology

The invention provides a wall-mounted air conditioner indoor unit. The indoor unit comprises a shell, a heat exchanger, a first air jetting part, a second air jetting part, a first air supply assemblyand a second air supply assembly; the shell comprises a cover shell and a front panel arranged in front of the cover shell, the front panel is provided with a first air supply port and a second air supply port which are in long circle shapes, and the shell is arranged obliquely downward relative to a supporting wall so as to make the air supply ports be inclined downward; the heat exchanger is arranged in the shell, and the position of the heat exchanger communicates with an air inlet; the first air jetting part is arranged in the first air supply port, the second air jetting part is arrangedin the second air supply port, the inner circumferential wall of the first air jetting part and the inner circumferential wall of the second air jetting part are provided with a first air jetting port and a second air jetting port which allow the air flow subjected to heat exchange to be discharged correspondingly, and the air flow subjected to heat exchange drives the air in center air draft hole of the first air jetting part and the air in the center air draft hole of the second air jetting part to be sent out obliquely downward; and the first air supply assembly and the second air supply assembly are arranged in the shell at intervals, and are used for providing heat exchange air flows for the first air jetting part and the second air jetting part respectively. According to the scheme,the air supply amount is increased, so that the temperature of the indoor temperature is reduced integrally and uniformly.

Ceiling type ventilation equipment based on Coanda effect comprises a top plate, a Coanda disc shell, an arc-shaped guide sleeve, an exhaust fan, a plurality of connecting blocks and an annular mounting rack with a filter net. A wall plate of the Coanda disc shell is a Coanda curved surface, and the small opening end of the Coanda disc shell is curled inwards so as to form an annular guide head with a smooth curved surface. An opening is formed in the outer side of the annular guide sleeve, an annular guide groove is formed in the outer side of the annular guide sleeve, an arc-shaped guide hole is formed in the inner wall of the annular guide sleeve, and the annular mounting rack with the filter net is mounted on an annular boss in the arc-shaped guide hole through screws. The Coanda disc shell is connected with the annular guide sleeve through the plurality of connecting blocks, and an annular air outlet is formed by the outer side of the annular guide head on the Coanda disc shell and the inner side of the small end of the annular guide groove of the annular guide sleeve. The Coanda disc shell is mounted on the top plate through screws, an air inlet cavity is formed between the inner wall plate of the Coanda disc shell and the top plate, and the exhaust fan is suspended on the top plate and positioned in the arc-shaped guide hole in the annular guide sleeve.

The invention discloses an indoor air ventilation device based on the Coanda Effect. The indoor air ventilation device comprises a Coanda airfoil-shaped panel, an arc-shaped shield plate, a bottom plate, side plates, an air inlet barrel, an annular frame and a variable frequency fan, wherein the Coanda airfoil-shaped panel, the arc-shaped shield plate and the side plates are arranged on the bottom plate; the arc-shaped shield plate is arranged on the upper end, on which a flow guidance head provided with a smooth curve surface is arranged, of the Coanda airfoil-shaped panel; the two side plates are separately arranged on the two sides of the Coanda airfoil-shaped panel and the arc-shaped shield plate; an air inlet cavity is formed by the Coanda airfoil-shaped panel, the arc-shaped shield plate, the side plates and the bottom plate; a strip-shaped air outlet is formed between the arc-shaped flow guidance head of the Coanda airfoil-shaped panel and the arc-shaped shield plate; the air inlet barrel is arranged on the bottom plate, and is communicated with the air inlet cavity; the assembly height of the air inlet barrel is lower than that of the strip-shaped air outlet, so that noise which is generated when air flow flows out of the air inlet cavity is reduced; the annular frame is arranged in a barrel hole at one end of the air inlet barrel; and the variable frequency fan is arranged in the barrel hole of the air inlet barrel, and is fixed on the annular frame through screws.

The invention provides a wall-mounted air conditioner indoor unit. The indoor unit comprises a casing, a heat exchanger, a first air spraying part, a second air spraying part, a first air supplying assembly and a second air supplying assembly; the casing comprises a housing and a front panel arranged in front of the housing; a long and round first air supplying opening and a long and round secondair supplying opening which are formed at an interval are formed in the front panel; side wall air inlets are formed in two sides of the housing; panel air inlets are formed between the first air supplying opening and the second air supplying opening; the heat exchanger is arranged in the casing; the first air spraying part is arranged in the first air supplying opening; the second air spraying part is arranged in the second air supplying opening; a first air spraying opening and a second air spraying opening which supply air flows after heat exchange are correspondingly formed in the inner circumferential wall of the first air spraying part and the inner circumferential wall of the second air spraying part; heat-exchange air flows drive the ambient air in central air drawing holes of thefirst air spraying part and the second air spraying part to be sent out; the first air supplying assembly and the second air supplying assembly are arranged inside the casing at an interval and are used for providing the heat-exchange air flows for the first air spraying part and the second air spraying part correspondingly. According to the scheme, the air supplying volume is increased, and the indoor temperature is reduced in an overall even manner.

The invention provides a wall-mounted air conditioner indoor unit. The wall-mounted air conditioner indoor unit comprises a shell, an air jetting component, a first air supplying assembly and a secondair supplying assembly, the shell is provided with a housing and a front panel, and air inlets are formed in the top wall and the side wall of the housing correspondingly. A long circular air supplyopening is formed in the lower portion of the front panel. The shell is arranged to be obliquely downward relative to a support wall so as to enable the air supplying opening to face downwards and obliquely. The air jetting component is arranged in the air supplying opening, an air exhausting hole is defined in the inner side of the annular inner wall of the air jetting component, an air supplyingcavity is defined by the annular outer wall and the annular inner wall jointly, and an air jetting opening is formed in the connected edges of the annular outer wall and the annular inner wall. A first air inlet and a second air inlet which are used for supplying heat exchange air flows to the air supplying cavity are formed in the transverse two ends of the annular outer wall correspondingly. The air jetting opening is used for jetting air of the air supplying cavity out and enabling environment air to be exhausted to penetrate through the air supplying opening. The first air supplying assembly and the second air supplying assembly are used for generating the heat exchange air flows supplied into the air supplying cavity through the first air inlet and the second air inlet correspondingly. According to the wall-mounted air conditioner indoor unit, the air supplying quantity is increased to enable the indoor temperature to be overall evenly decreased.

The invention provides a wall-mounted air conditioner indoor unit. The wall-mounted air conditioner indoor unit comprises a shell, an air supply device, a heat exchange device, an air injection part and a fresh air device; a first air inlet is formed in the top of a case of the shell; a first air supply outlet is formed in the lower portion of a front panel; the air supply device promotes air to be sent out from the first air inlet through the first air supply outlet; the heat exchange device is arranged between the first air inlet and the air supply device so as to perform heat exchange withthe air entering the shell from the first air inlet; the air injection part is arranged below the first air supply outlet; an air injection port is formed in the edge, connected to an annular inner wall, of an annular outer wall; the fresh air device is arranged on one side of the shell and is provided with a fresh air pipe and a fresh air fan, wherein the fresh air pipe communicates with a freshair source environment; the fresh air fan enables fresh air flow to be sprayed out forwards from the air injection port so as to drive ambient air to mix with the air which is sent out by the first air supply port and is subjected to heat exchange in front of the shell. According to the scheme of the wall-mounted air conditioner indoor unit, the air supply distance can be increased, the user experience can be improved, and the air quality can be improved.

The invention provides an indoor unit of a wall-mounted air conditioner. The indoor unit of the wall-mounted air conditioner comprises a shell body, an air supply device, a heat exchange device, an air injection assembly and two fresh air devices, wherein a first air inlet port is formed in the top of a housing of the shell body, a first air supply port is formed below a front panel, and a first fresh air pipe connection port and a second fresh air pipe connection port are formed in the end surfaces of the two sides of the shell body separately; the air supply device is arranged in the shell body, and urges air to be supplied out through the first air supply port from the first air inlet port; the heat exchange device is arranged between the first air inlet port and the air supply device,and used for carrying out heat exchange with air entering the shell body from the first air inlet port; the air injection assembly is arranged below the first air supply port, and is formed with an air injection port; and the two fresh air devices suck in air from the corresponding fresh air pipe connection ports separately, enable air supply flow to be injected forwards from the air injection port, and drive ambient air to be mixed with the air supplied out through the first air supply port in front of the shell body. According to the scheme, the air supply distance can be increased, so thatthe air sense experience of a user is improved, and the indoor air quality is improved.

The invention relates to an anti-fog and anti-haze face mask. The anti-fog and anti-haze face mask comprises a face mask body, a fixing mechanism, an air purifier, an air delivery hose and a transversely-arranged air outlet pipe. The face mask body is placed in front of the face of a person through the fixing mechanism. The space between the face mask body and the face of the person communicates with the outside. The air outlet is arranged on the lower portion of the face mask body, located in the space between the face mask body and the face of the person and also located below the mouth of the person, and N air outlets which are open upwards are evenly formed in the air outlet pipe. An air outlet of the air purifier communicates with the interior of the air outlet pipe through the air delivery hose. The interior of the air outlet pipe communicates with the outside only through the N air outlets. The mask face body is an arc-shaped panel which is matched with the face of the person. The air outlet pipe is an arc-shaped pipe and fixedly connected with the inner side face of the face mask body, and the radian of the air outlet pipe is matched with the radian of the inner side face of the face mask body. By adoption of the anti-fog and anti-haze face mask, people can inhale clean air and can also breathe smoothly and speak clearly, and interpersonal communication is facilitated.

The invention provides an indoor unit of a wall-mounted air conditioner. The indoor unit comprises a shell, a heat exchanger, an air injection assembly, a first air supply assembly and a second air supply assembly. The shell comprises a housing and a front face plate arranged in the front of the housing; air inlets are formed in the top wall and the side wall of the housing correspondingly; and along-round-shaped air supply port is formed in the lower portion of the front face plate. The air injection assembly is arranged in the air supply port and comprises a first air injection part and a second air injection part which are transversely arranged; a first air injection port and a second air injection port are formed in the inner circumferential walls of the first air injection part and the second air injection part correspondingly; and the first air injection port and the second air injection port are used for forwards spraying out air flows in the air injection parts and driving ambient air in air draft holes to be forwards supplied, wherein the air draft holes are defined by the inner circumferential walls of the air injection parts. The first air supply assembly is used for generating first heat exchanging air flows which enter from the air inlets, conduct heat exchanging with the heat exchanger and then are supplied into the first air injection part. The second air supplyassembly is used for generating second heat exchanging air flows which enter from the air inlets, conduct heat exchanging with the heat exchanger and then are supplied into the second air injection part. According to the scheme of the indoor unit of the wall-mounted air conditioner, the air supply volume is increased, and the room temperature is made to be evenly decreased.

The invention relates to a conveniently adjusted newborn nursing bed which comprises a first shell, a second shell, a third shell, a storage mechanism, a rotating mechanism, a ventilation mechanism, awinding mechanism and a lifting mechanism. The second shell is arranged on one side of the first shell, the third shell is arranged on the other side, far away from the first shell, of the second shell, the storage mechanism is arranged in the second shell, the rotating mechanism is arranged on one side, far away from the second shell, of the storage mechanism, the ventilation mechanism is arranged on one side, far away from the storage mechanism, of the rotating mechanism, the winding mechanism is arranged on one side, far away from the rotating mechanism, of the ventilation mechanism, and the lifting mechanism is arranged between the first shell and the third shell. The conveniently adjusted newborn nursing bed is provided with the ventilation mechanism, inner air in the bed can be circulated, air flow and illumination can be softer in the working process of the ventilation mechanism by the aid of a wind shielding plate and a light shielding plate below the ventilation mechanism, and the bed is more comfortably used.

The invention provides a wall-mounted air-conditioner indoor unit. The wall-mounted air-conditioner indoor unit comprises a shell, a heat exchanger, an air jetting part, a first air supply assembly and a second air supply assembly. The shell is provided with an air inlet and an air supply outlet, the air supply outlet is in a long circular shape and formed in the lower portion of the shell, the air jetting part is arranged in the air supply outlet, and comprises an annular inner wall and an annular outer wall, an air draft hole is limited out by the inner side of the annular inner wall, and anair supply cavity is defined jointly by the annular outer wall and the annular inner wall; an air jetting port is formed by the edges, connected with each other, of the annular outer wall and the annular inner wall, a first air inlet and a second air inlet which are used for providing air flows which are subjected to heat exchanging through the heat exchanger for the air supply cavity are formedin the two transverse ends of the annular outer wall correspondingly, the air jetting port is used for jetting out air of the air supply cavity forwards, and therefore air in the rear of the air supply port is sucked to penetrate through the air supply port; and the first air supply assembly and the second air supply assembly are used for producing heat exchanging air flows which are subjected toheat exchanging with the heat exchanger and then supplied into the air supply cavity through the first air inlet and the second air inlet correspondingly. According to the scheme of the wall-mounted air-conditioner indoor unit, the air supply amount is increased, and the indoor temperature is integrally and evenly decreased.

An electric fan has a bracket, a transmission assembly, a linking assembly, a swing object and a fan. The transmission assembly is mounted on the bracket. The linking assembly is connected to the transmission assembly. The swing object is connected pivotally to the linking assembly. The fan is connected to the swing object. The transmission assembly is actuated to drive the fan to swing up and down and provide gentle and sustained airflow so users can feel truly comfortable.

The invention provides a wall-mounted-type air conditioner indoor unit which comprises a shell, a heat exchanger arranged in the shell, a first air spraying part arranged in a first air supplying opening and a second air spraying part arranged in a second air supplying opening and further comprises first air supplying assemblies and second air supplying assemblies which are arranged in the shell at intervals. The shell comprises a housing and a front panel arranged in front of the housing. An air feeding opening, the long circular first air supplying opening and the long circular second air supplying opening are formed in the front panel. The shell is obliquely downwards arranged relative to a supporting wall body to enable the air supplying openings to face the oblique lower portion. First air spraying openings and second air spraying openings for allowing heat-exchanged air flows to be sprayed out are formed in the inner circumferential walls of the first air spraying part and the second air spraying part correspondingly. The heat-exchanged air flows drive environment air in center air draft holes of the first air spraying part and the second air spraying part to be sent out. Thefirst air supplying assemblies and the second air supplying assemblies are used for providing the heat-exchanged air flows to the first air spraying part and the second air spraying part correspondingly. According to the scheme, falling of dust on the openings is avoided, the air supplying volume is enlarged, and thus the indoor temperature is overall evenly decreased.

The invention provides an air pressure type eye fatigue recovery apparatus which comprises an air pressure bulb, a bulb tube connecting piece, a rubber vent tube and a head band and further comprise a housing, a silica gel lip supporting cover, a silica gel lip, a rubber tube connecting plug, a square air inlet groove, a main air inlet hole, a square transverse air distributing groove, an air inlet-outlet hole, an air way turning baffle and the like. The head band is tied on a user to make the silica gel lip in tight contact with the orbital skin, then the hollow rubber bulb is extruded with hand, the eye is driven to move by utilizing the physical mode of air pressure change, blood circulation of the eye ground is promoted, the metabolism of the eye is promoted, the eye fatigue is relieved, and the eye is helped to be relaxed very well. The air pressure type eye fatigue recovery apparatus is quiet, silent and free of power consumption in the whole process, 200 times of bulb extrusion need about 3 minutes in use each time, the apparatus can be repeatedly used any time anywhere, and energy is saved. The symptoms of shortsightedness, presbyopia and cataract are relieved somewhat, and the apparatus has the obvious relieving effect on the symptoms such as over eye fatigue, eye drying, eyestrain, eye itching and blurred vision, especially dizzy or giddy feeling caused by astigmatism.

The invention provides an air flow adjusting device and an air conditioner. The air flow adjusting device comprises a shell body and at least one guiding structure, wherein at least one air flow channel which penetrates through the shell body is formed; and the guiding structures are arranged on the inner wall of the shell body, the guiding structures are protruded from the inner wall surface of the shell body and extends along the inner wall surface, and the side faces, of the guiding structures, which are located on both sides of the extending direction are arched to the same side, so that the air flow is disturbed in the air flow channel and the air flow forms a rotating jet. Through the technical scheme of the air flow adjusting device and the air conditioner, the air flow passing through the air flow adjusting device can form the rotating jet, so that the diffusion ability of the air outlet flow and the ability of entraining surrounding air are enhanced; and the temperature and wind speed of the air outlet flow is quickly neutralized, so that the blowing feeling of the air outlet flow is reduced, the occurrence of condensation phenomenon is reduced, and the use comfort of theair conditioner is effectively improved.

The invention provides a wall-mounted air conditioner indoor unit which comprises a shell and at least one rotary wind shielding piece. Air dispersing openings are formed in the shell and are used forexhausting an air supply airflow in the shell; each rotary wind shielding piece comprises a wind shielding plate and a micro-pore plate; the wind shielding plates and the micro-pore plates face different directions; and the rotary wind shielding pieces are arranged to be capable of rotating to the wind shielding positions enabling the wind shielding plates to shield the air dispersing openings orrotating to the air dispersing positions enabling the micro-pore plates to shield the air dispersing openings so as to allow the air supply airflow to be blown out through multiple micro-pores of themicro-pore plates. According to the wall-mounted air conditioner indoor unit provided by the invention, comfortable air supply is achieved.

The invention discloses a drum type rosa roxburghii tratt stab removing device. The drum type rosa roxburghii tratt stab removing device comprises a bracket, wherein annular sliding rails of which axle centers are vertically upwards are arranged on the bracket; a drum is connected to the inner part of the annular sliding rails in a sliding manner; a driving motor is connected to the bottom of thedrum; a sealing cover is connected to the top end of the drum through hinges; a gas blowing pipe is movably connected to the axle center of the sealing cover through a bearing; after one end of the gas blowing pipe extends in the drum, exhaust holes are formed in the pipe wall of the gas blowing pipe; and a blowing machine is connected to the other end of the gas blowing pipe through a gas guidingpipe. The drum type rosa roxburghii tratt stab removing device disclosed by the invention has the characteristics that the stab removing effect for rosa roxburghii tratt of different diameters is good, the stab removing is thorough, and the rosa roxburghii tratt is not liable to break.

The present invention provides an indoor unit of a cabinet type air conditioner, which comprises a casing, an air supply fan arranged in the casing, a heat exchanger, an air guide member, an air guide swing blade group and a first drive mechanism, wherein the guide The air member has a through-air passage extending front and rear and communicated with the air outlet, and has at least one annular jet opening extending around the front-rear direction, the annular jet opening is configured to guide the heat exchange airflow to the through-air passage, and blow the airflow forward to The airflow in the through-air passage is driven forward to the air outlet; the wind-guiding swing blade group includes at least one air-guiding swing-blade, one air-guiding swing-blade group is located at an annular jet port, and the first drive mechanism is configured to drive an air-guiding swing At least one air guide swing blade in the blade group rotates up and down to adjust the air outlet direction of the air outlet in the vertical direction, thereby increasing the air outlet coverage in the vertical direction of the air outlet, and improving the front and surrounding areas of the air outlet temperature uniformity, providing users with a better cooling and heating experience.

The invention discloses a car roof ventilation skylight. The car roof ventilation skylight comprises a mounting plate and a main window frame, wherein the mounting plate is fixed on a car roof, the main window frame is arranged on the mounting plate, the main window frame is movably connected with the mounting plate and covers the mounting plate, and a sealing strip is arranged at the joint of themain window frame and the mounting plate; the rear end of the mounting plate is provided with a telescopic supporting rod capable of propping the rear end of the main window frame outward, and a backward opening is formed in the car roof when the main window frame is propped. The car roof ventilation skylight has the advantages that the structure is simple, the implementation is easy, the main window frame is movably connected with the mounting plate, the mounting plate is provided with a telescopic supporting frame capable of propping the main window frame and tempered glass together, and the backward opening is formed in the car roof, so that excessive wind resistance cannot be generated when a car travels.

The invention provides an indoor unit of a cabinet air conditioner. The indoor unit comprises an air supply fan, a heat exchanger, an air guide component and a driving mechanism. The air guide component comprises at least three air guide rings which are opened front and back and are through in the middle, and all the air guide rings are sequentially arranged in the front-back direction to form a through air channel penetrating through all the air guide rings. A jet flow opening is formed between every two adjacent air guide rings, and the jet flow openings are configured to guide heat exchangeairflow to the through air channels and blow the airflow forwards, so that the air in the through air channels is fed forwards to an air outlet located in the front side of a machine shell. The driving mechanism comprises a motor, a driving box and a transmission mechanism which is at least partially located in the driving box and further connected with the motor so as to drive at least two adjacent air guide rings to move, the edges of the two transverse sides of the driving box are in a streamline shape with the middle being recessed inwards, the size of the driving box in the transverse direction is decreased, and therefore wind resistance is reduced, the air amount entering the through air channels from the jet flow opening is increased, and meanwhile the airflow can flow upwards moresmoothly along the edges of the two transverse sides of the driving box.

The invention provides a wall-mounted air conditioner indoor unit. The wall-mounted air conditioner indoor unit comprises a machine case, a heat exchanger and a plurality of air supply assemblies, wherein the heat exchanger and the air supply assemblies are arranged in the machine case; the machine case is provided with an air inlet and a plurality of first air supply ports; each air supply assembly comprises an air supply fan; each air supply assembly corresponds to one first air supply port; the air supply assemblies are used for guiding heat exchange air flow to the corresponding first airsupply ports to be supplied to the indoor environment. The wall-mounted air conditioner indoor unit provided by the invention selectively supplies air to one of the first air supply ports through thecorresponding air supply assembly or supplies air to the multiple first air supply ports simultaneously through the air supply assemblies to realize zoning air supply and enlarges the air supply range. Thus, the cooling and heating effect is improved, and the use experience of users is improved.

The invention discloses an energy-saving bladeless fan. The energy-saving bladeless fan comprises a base, a support, a circular edge, an impeller, an air-inhaling hole, a switch and a power supply, wherein the base is located on the lowest portion and supports the whole fan; the air-inhaling hole is formed in the lower portion of the base; the circular edge is arranged above the support and facilitates airflow collection, and airflow is sprayed outwards along a circular trace; the impeller is hidden inside the circular edge; the switch and the power supply are arranged on the base and facilitate use. The energy-saving bladeless fan works according to the first step of inhaling, namely, air is inhaled from the bottom layer of the fan through the air-inhaling hole, the second step of accelerating, namely, the air enters the circular edge and makes strong injection airflow through the annular aperture, the third step of guiding, namely, the airflow passes through a 16-degree spiral wing-shaped air guide slope, and air is blown outwards, the fourth step of inducing, namely, air behind the fan is introduced to the airflow, the fifth step of clamping and involving, namely, air around the fan is involved in the airflow and the sixth step of reinforcing, namely, the airflow is instantly reinforced through air inducing, clamping and involving.

The invention relates to an elevator pit with good ventilation performance, and belongs to the field of elevators, the elevator pit comprises a pit body, the pit body comprises a pit bottom and a side wall located at the edge of the pit bottom and in an enclosed shape, the side wall is concaved inwards to form a ventilation groove, the lower end of the ventilation groove abuts against the pit bottom, and the lower end of the ventilation groove abuts against the pit bottom. The upper end of the ventilation groove extends out of the side wall, the ventilation groove and the vertical direction are arranged in an inclined mode, an included angle is formed between the ventilation groove and the vertical direction, the depth of the ventilation groove is gradually reduced from top to bottom, and an exhaust fan with the air outlet direction downward along the ventilation groove is arranged at the upper end of the ventilation groove. The ventilation grooves are obliquely formed in the clockwise direction or the anticlockwise direction. The elevator has good ventilation performance, the stuffiness feeling of maintenance personnel can be effectively eliminated, it is guaranteed that the working state of the maintenance personnel is good, and then the quality of elevator maintenance operation of the maintenance personnel is guaranteed.

The invention provides a wall-mounted type indoor unit of an air conditioner. The wall-mounted type indoor unit comprises a housing, a heat exchanger, a first gas spraying part and a second gas spraying part, and a first air feeding assembly and a second air feeding assembly, wherein the housing comprises a casing and a front panel arranged in front of the casing; a first air feeding hole and a second air feeding hole, which are in the shape of a long circle, are formed in the front panel in a spaced mode; an air inlet is formed between the first air feeding hole and the second air feeding hole; the first gas spraying part is distributed in the first air feeding hole, and the second gas spraying part is distributed in the second air feeding hole; a first gas spraying hole and a second gasspraying hole for spraying heat-exchanged gas flow are separately formed in the inner peripheral wall of the first gas spraying part and the inner peripheral wall of the second gas spraying part; heat-exchanged gas flow drives ambient air in a central air exhaust hole of the first gas spraying part and a central air exhaust hole of the second gas spraying part to feed out; and the first air feeding assembly and the second air feeding assembly are arranged inside the housing in the spaced mode, and are separately used for providing heat-exchanged gas flow to the first gas spraying part and thesecond gas spraying part. With the adoption of the scheme, ash is prevented from dropping into an opening, so that air feeding amount is increased, and therefore, an indoor temperature is integrally reduced uniformly.

The invention discloses a floor type air conditioner indoor unit. The floor type air conditioner indoor unit comprises a machine shell, an air duct assembly and a opening-closing door assembly; an air inlet and a first air outlet are formed in the machine shell, and an airflow path from the air inlet to the first air outlet is a first airflow path; the air duct assembly is arranged in the machine shell and comprises a wind wheel, and the wind wheel is located on the first airflow path; the opening-closing door assembly comprises an opening-closing door and a protective door, wherein the opening-closing door is arranged at the first air outlet in a sliding mode so as to open or close the first air outlet, the protective door is in linkage with the opening-closing door so that the protective door can be located on the first airflow path when the first air outlet is in an open state, the protective door is provided with a hollow area for airflow to pass through, and when the protective door is located on the first airflow path, the protective door is located on the downstream of the wind wheel. The floor type air conditioner indoor unit has the advantages of high assembling efficiency and low production cost.

Coanda vane ventilation fan includes cabinet, Coanda vanes, two half-shaped Coanda vanes, exhaust fan and screen. The cabinet includes a fan cavity, a voltage stabilizing cavity and a frame for installing Coanda fins and half-sided Coanda fins. The front panel and rear panel of the cabinet are equipped with air inlets connected to the fan cavity. Two parallel guide rails are provided on the inner end surfaces of the front panel and the rear panel of the cabinet. Two movable baffles are installed between the two guide rails, and the gauze is installed on the frame. The pressure stabilizing cavity is located at the upper end of the fan cavity and communicates with the fan cavity through the vent, and the frame is located at the upper end of the pressure stabilizing cavity. The exhaust fan is installed at the upper end of the fan cavity, and the Coanda fin and the half-shaped Coanda fin are installed in the frame. One end of it is connected to the pressure stabilizing cavity, and the other end is connected to the frame wall plate and closed by the frame wall plate; two pieces The half-shaped Coanda fins are respectively connected with the wall panels of the frame to form the inner cavity of the tube, and the Coanda fins are arranged between two half-shaped Coanda fins.

The invention provides an air duct, an air guide assembly and an air conditioner. An air flow passage is formed in the air duct and comprises a first curve section and a second curve section, whereinone end of the second curve section and one end of the first curve section are opposite to each other and are linked, and the other end of the second curve section is formed as an outlet. The air ductis designed to comprise the first curve section and the second curve section. The first curve section can be used to be matched with a fan or a wind wheel so as to meet the requirements of wind pressure control and air flow rationalizing. The second curve section is utilized to carry out turning diversion again after the first curve section, so that air flow discharged from the outlet of the airduct can obviously have upward deflection inertia under the flow guide function of the second curve section before being discharged. Therefore, the air flow can spin to a certain extent after being discharged from the outlet of the air duct under the action of the deflection inertia, spiral air flow is formed, air discharge is softer, and as a result, the product use experience is improved.