2409results about "Axial flow pumps" patented technology

A hand-held refrigeration fan is provided, including a fan head and a hand-held portion. The fan head includes a fan housing, an air duct is formed in the fan housing, and the fan housing is provided with a connecting through hole penetrating through inner and outer sides of the air duct. A conductive member is arranged on an outer surface of the hand-held portion, a refrigeration apparatus is arranged in the hand-held portion, a refrigeration end of the refrigeration apparatus is connected to the conductive member in a heat conduction manner, and a heat dissipation end of the refrigeration apparatus communicates with the air duct after penetrating through the connecting through hole. A conductive sheet is arranged on an outer surface of a hand-held portion, and a refrigeration effect is achieved by the conductive sheet through the operation of a refrigeration apparatus.

A high-speed wind-gathering booster fan is provided. The high-speed wind-gathering booster fan includes a housing. An air duct is arranged inside the housing. A motor base is arranged at an axis of the air duct. Part of a circumferential wall surface of the motor base extends radially outward to form guide vanes. The air guide vane includes a parallel part and a torsional wind cutting part. The parallel part is close to the side of an air outlet. The parallel part is in parallel with an axis of an air outlet. The torsional wind cutting part is close to the side of an air inlet. The torsional wind cutting part is deviated from a plane where the parallel part is. An extension surface of the torsional wind cutting part is axially intersected with a wind-deflecting fan blade set.

An air guide frame, a fan head, and a handheld concentrating fan are provided. The air guide frame is configured to be arranged at an air outlet of a fan head and guide air from a fan. the air guide frame includes an inner frame and a separator ring arranged at a periphery of the inner frame; a first air channel is formed in a periphery of the separator ring; a second air channel is formed between the inner frame and the separator ring; and a wind speed of wind exported from the second air channel is greater than a wind speed of wind exported from the first air channel. Compared with the existing technology, the air guide frame having the first air channel and the second air channel can implement the wind speeds of winds blown out through the two air channels being different.

A portable fan includes a housing body, a fan assembly, a power supply assembly and a first clamping device. The housing body is provided with an accommodating chamber, an air inlet, and an air outlet; the air outlet, at least part of the accommodating chamber and the air inlet are communicated to each other in sequence along a first preset direction. The fan assembly is located within the accommodating chamber and between the air inlet and the air outlet, and is configured to drive an airflow to flow from the air inlet to the air outlet. The power supply assembly is located within the accommodating chamber, the power supply assembly is offset from a projection of the fan assembly along the first preset direction, and the power supply assembly is electrically connected to the fan assembly to supply power to the fan assembly.

Apparatus and methods are described including a ventricular assist device that includes an impeller configured to be placed inside a left ventricle of a subject. A driving magnet is coupled to a motor and is rotated by the motor. A driven magnet is magnetically coupled to the driving magnet and is rotated by the driving magnet. A drive cable extends from the driven magnet and imparts rotational motion from the driven magnet to the impeller. A set of sensors is configured to detect a magnetic phase difference between the driven magnet and the driving magnet. A computer processor receives the detected magnetic phase difference and determines a physiological parameter of the subject, at least partially in response thereto. Other applications are also described.

A misting fan includes a fan assembly and a misting assembly. The fan assembly includes a fan housing and a fan blade assembly. The fan housing includes an air inlet guard and an air outlet guard. The air outlet guard includes a mist outlet portion and air outlet vanes, the mist outlet portion includes a mist outlet hole and air outlet holes. The misting assembly includes an atomizing member and a water tank. The water tank includes a main tank body, at least one water delivery pipeline, and an atomizing portion. Liquid in the main tank body is provided to the atomizing member through the at least one water delivery pipeline and the atomizing portion, thereby enabling the atomizing member to spray mist spray formed by atomizing the liquid from the mist outlet hole, and outlet airflow is arranged around the mist spray.

A waist hanging fan is provided, which includes an outer shell and a blowing component. The blowing component includes an inner wind duct shell, two ends of the inner wind duct shell are provided with an air inlet end and an air outlet end; an air blower provided in the inner wind duct shell; and a wind guide cover. The wind guide cover is circular. A lower end of the wind guide cover is provided in the outer shell and is sleeved on an outer side of the inner wind duct shell. An outer wall of the lower end of the wind guide cover is provided with a clamping protrusion, a wall of the outer shell or inner wind duct shell is provided with at least two clamping grooves. The present disclosure has the advantage that it is easier for wind to blow onto a user's body.

An axial fan assembly includes a first axial fan and a second axial fan arranged side by side. The second axial fan includes an impeller having a shaft, and a frame. The frame includes a surrounding wall and a lateral guiding structure. The surrounding wall forms an axial flow channel for accommodating the impeller, wherein the surrounding wall includes a first outer wall surface facing the first axial fan, and an airflow generated by the impeller flows out of the axial flow channel through an outlet end. The lateral guiding structure is protrudently disposed at the outlet end on an edge surface connected with the first outer wall surface, wherein the lateral guiding structure guides a partial airflow of the airflow at the first edge surface toward a first direction, and the first direction and a normal direction of the first outer wall surface include a first acute angle.

A spray fan includes a box, a mounting base and a fan body. The fan body is arranged on the mounting base so that the fan body has a first state arranged on the box and a second state contained in the box. The disassembly and assembly design of the spray fan enhances the convenience of storage and portability. The configuration of the spray assembly effectively prevents an excessive amount of liquid in the water storage tank, thereby avoiding issues of excessive internal pressure. Additionally, it prevents liquid from overflowing from the ultrasonic atomizer of the spray assembly, ensuring optimal atomization performance.

A fan assembly and an electronic device are provided in the present disclosure. The electronic device comprises a housing and the fan assembly mounted in the housing. The housing is provided with a receiving chamber, a first opening, and a second opening. The fan assembly includes a plurality of brackets, a fan unit, and a plurality of locking mechanisms. The fan unit includes a mounting plate and a plurality of fan sections. The fan unit may be fitted in the receiving chamber in a forward state or a backward state, to achieve a forward airflow or a backward airflow. Each of the plurality of fan sections may be locked to each bracket by each locking mechanism and be taken out from the receiving chamber with a corresponding bracket.

A portable fan includes a housing body, a fan assembly, a power supply assembly and a first clamping device. The housing body is provided with an accommodating chamber, an air inlet, and an air outlet; the air outlet, at least part of the accommodating chamber and the air inlet are communicated to each other in sequence along a first preset direction. The fan assembly is located within the accommodating chamber and between the air inlet and the air outlet, and is configured to drive an air flow to flow from the air inlet to the air outlet. The power supply assembly is located within the accommodating chamber, the power supply assembly is offset from a projection of the fan assembly along the first preset direction, and the power supply assembly is electrically connected to the fan assembly to supply power to the fan assembly.

A fan includes a main body of fan and a bracket assembly. The main body of fan is connected to the bracket assembly. The main body of fan includes a blower part for blowing air, a rotating bracket and a main unit. The rotating bracket is arranged between the blower part and the main unit and is configured to connect the blower part and the main unit. The main unit is configured to control air blowing of the blower part. The bracket assembly includes at least one bendable and shapeable supporting leg configured to fix the fan to an external object. A rotating bracket is rotatably connected to both a blower part and a main unit, enabling vertical and horizontal rotation of the blower part. This configuration achieves multi-angle adjustment of the blower part, simplifies user control over airflow direction, and thereby significantly improves user experience.

A ceiling fan comprising a stationary inner housing defining a first interior, a stationary outer housing that circumscribes at least a portion of the stationary inner housing and defines a second interior, a motor assembly located within the first interior and having a rotor, and a plurality of blades extending between corresponding roots and tips, with the roots coupled to the rotor and the tips extending toward to the outer housing. The tips are coupled to a tip housing that can at least partially be received within a portion of the outer housing. A flow channel is formed between the stationary inner housing and the stationary outer housing.

A neck hanging fan is provided, which includes a neck wearing bracket including side shells located on left and right sides and a rear shell located on a rear side, the rear shell includes a rear air outlet; a fan located at an air inlet port at an end of the side shells; an air duct provided in the side shells, and an internal aperture of the air duct is gradually decreased. A lower side of the air duct is provided with a plurality of first air outlet ports provided along a length direction of the side shells; the air duct further includes a second air outlet port provided at a tail end, and the second air outlet is aligned with the rear shell. The present disclosure has the advantage of optimizing the air duct path to reduce wind loss and noise, thereby improving the comfort of the wearer.

The invention relates to the technical field of chip radiators, in particular to a chip radiator for a Loongson 3A6000 processor. The heat dissipation device comprises a heat conduction device and a heat dissipation device, the heat conduction device comprises a heat conductor and a fixing body, and the heat conductor comprises a heat conduction structure and a plurality of heat dissipation fins arranged on the heat conduction structure. According to the invention, when the rotating speed of the speed regulation fan is increased and the downward pressure applied to the wall surface of the guide cavity during air flowing is greater than the elastic force of the spring, the middle clamping plate is pressed downwards to drive the regulation and control plate to move downwards along the heat dissipation fins, and the distance from the heat conduction plate to the bottom end of the regulation and control plate is reduced, so that the air circulation sectional area of the air guide channel is reduced; therefore, the flow rate of air flowing out of the air guide channel is further increased, air flow in the case can be promoted, air circulation conditions in the case can be improved, virtuous circular flow of the air in the case can be formed, cooling of the processor is further facilitated, and the problem that the processor is damaged due to overheating or the performance of the processor is reduced is solved.

The invention relates to a vacuum pump, in particular a turbomolecular pump, with a housing and at least one pump stage arranged in the housing, comprising a stator and a rotor rotating relative to the stator about an axis of rotation during operation and cooperating with the stator to effectively pump, wherein the stator has at least one stator component with a surface having a first part and a second part different from the first part, and wherein the second part of the surface is uncoated and has a thermal emissivity ε of at least 0.25, preferably at least 0.3, at 50°C.

A mass damper is connected to a vacuum pump to reduce vibrations during operation. The mass damper includes a conic portion defined by a converging end and a diverging end and a damping mass connected to the converging end of the conic portion. The vacuum pump has a pump body, a vacuum inlet in fluid communication with an internal volume of a vacuum chamber, a vacuum outlet, and a rotor assembly disposed within the pump body. The rotor assembly is configured to rotate about a rotary axis to pump gas from the internal volume of the vacuum chamber out of the vacuum outlet. The conic portion may have a cone axis that is coaxial with the rotary axis of the vacuum pump.

A portable fan includes a housing body, a fan assembly, a power supply assembly and a first clamping device. The housing body is provided with an accommodating chamber, an air inlet, and an air outlet; the air outlet, at least part of the accommodating chamber and the air inlet are communicated to each other in sequence along a first preset direction. The fan assembly is located within the accommodating chamber and between the air inlet and the air outlet, and is configured to drive an air flow to flow from the air inlet to the air outlet. The power supply assembly is located within the accommodating chamber, the power supply assembly is offset from a projection of the fan assembly along the first preset direction, and the power supply assembly is electrically connected to the fan assembly to supply power to the fan assembly.

A hollow-structured cooling fan includes a fan frame, a fan blade, a display module, and a drive module. A mounting tube is disposed in a central portion of the fan frame, a first bearing is disposed within the mounting tube; a sleeve shaft is disposed in a central portion of the fan blade, and inserted into the mounting tube, and a second bearing is disposed within the sleeve shaft; a fixed shaft is disposed in a central portion of the display module, and inserted into the sleeve shaft, and an outer wall of the fixed shaft is connected to an inner ring of the second bearing; an end portion of an insertion end of the fixed shaft extends through a bottom of the mounting tube to form a limiting connection; and the drive module is disposed on an outer side of the mounting tube and cooperates with the fan blade.

The invention provides a flow guide ring structure, a fan assembly, an air conditioner and a noise reduction control method thereof.The flow guide ring structure comprises a flow guide ring, a noise reduction unit is arranged on the periphery of the flow guide ring, the noise reduction unit comprises a first sound absorption assembly, and the first sound absorption assembly comprises a first shell cover, a first partition plate and a first movable plate; the first shell cover covers the peripheral face of the flow guide ring to form a first cavity, the first cavity is divided by the first partition plate into a first sound absorption cavity and a second sound absorption cavity, the first sound absorption cavity and the second sound absorption cavity are different in size, and a plurality of first communicating holes are formed in a first perforated plate section of the first partition plate in a penetrating mode. The first movable plate is movably arranged on the first perforated plate section so as to adjust the number of the shielded first communicating holes. According to the flow guide ring structure, self-adaptive adjustment and noise reduction can be carried out according to the change of the operating parameters, so that noise of different frequencies generated under different operating parameters is effectively reduced, the frequency range of effective noise reduction is widened, the noise reduction effect is improved, and the mute experience comfort of a user is improved.

The invention relates to a turbomolecular pump with an inlet, an outlet, a pumping system operating in a pumping direction from the inlet to the outlet and comprising at least one turbomolecular pumping stage, the pumping system comprising a rotor with rotor elements and stator elements that interact with the rotor elements during operation to effectively pump, and a spindle unit comprising a spindle housing and, within the spindle housing, a shaft rotatably connected to the rotor, and for the shaft a drive motor and a bearing arrangement, wherein the shaft can be driven into rotation about an axis of rotation by means of the drive motor and is rotatably mounted by the bearing arrangement, wherein the spindle housing is at least partially surrounded by the rotor, and wherein at least one blocking stage is arranged in an intermediate space between the spindle housing and the rotor, which blocks at least one direction, in particular for a process gas pumped by the pumping system,has a blocking effect and is formed by an area on the outside of the spindle housing and / or by an area on the inside of the rotor.

Apparatus and methods are described including an impeller (50) that includes a proximal bushing (64) and a distal bushing (58). Two or more helical elongate elements (52) extend from the proximal bushing (64) to the distal bushing (58), and an axial structure (54) is disposed inside of the two or more helical elongate elements (52), and along an axis around which the helical elongate elements (52) wind. The impeller (50) includes an impeller-overexpansion-prevention element (72). The impeller-overexpansion-prevention element is a single integrated structure that includes a ring (73) disposed around the axial structure (54), and a plurality of elongate elements (67) each of the elongate elements (67) extending from the ring to a respective helical elongate element (52) and being coupled to the respective helical elongate element (52) so as to prevent radial expansion of the impeller (50). Other applications are also described.

The invention relates to the technical field of axial flow fans, in particular to an impeller with S-shaped blades and an axial flow fan applying the impeller. On the axial projection of the impeller, the peripheral contour of each blade is defined by a blade root edge, a blade front edge, a blade outer edge and a blade rear edge, and the blade root edge is connected with the hub; the blade front edge and the blade rear edge are both wavy curves, and the blade root edge and the blade outer edge are both arc-shaped lines with the axis O of the hub as the circle center. Each blade is provided with a pressure face and a suction face, the pressure faces and the suction faces are oppositely arranged, and on the radial projection of the impeller, the pressure faces are arranged in a wave shape in a protruding mode from one end of the blade root edge to one end of the blade rear edge towards the suction faces and then concavely arranged, so that the blades are of an S-shaped structure. The problem that a traditional blade structure cannot meet the use requirements of high efficiency and low noise can be solved.

The utility model provides a fan structure, a heat dissipation system and an air conditioner, and the fan structure comprises a fan part which is rotatably arranged; the control module is in signal connection with the fan component so as to send a driving signal to the fan component; and the power generation module is arranged corresponding to the fan component, and when the fan component rotates, the power generation module generates power by utilizing kinetic energy of the fan component so as to send an electric signal to the control module. When the fan component moves, the power generation module is driven to generate power, the control module deduces whether the fan component moves or not according to electric signals sent by the power generation module, and therefore whether the fan component works normally or not can be judged. Due to the fact that the electric energy is generated instantly, a worker can know the change of the state of the fan component at the first time, and the technical problem that abnormal conditions of the fan cannot be found in time easily is solved.

A fan device having a first pedestal configuration and a second table-top configuration is provided. In one embodiment, the fan device includes a head assembly having a fan and a motor operatively coupled to the fan. The head assembly can also include an articulation mechanism and a plurality of legs coupled to the articulation mechanism. The fan device can further include a base assembly having a base and a support with a first end coupled to the base and a second end opposite the first end. The support can include a housing and an elongate receiving portion arranged within the housing at the second end of the support. The receiving portion can be configured to receive the plurality of legs to detachably couple the head assembly to the base assembly.

An integrated illuminated fan includes a conjoined base, a conjoined fan frame, fans and a lighting structure. The conjoined base is disposed with bearing portions which are arranged at intervals. The conjoined fan frame is connected with the conjoined base and disposed with vane wheel chambers. The vane wheel chamber is arranged correspondingly to the bearing portion. The fan includes a stator assembly and a vane wheel. The stator assembly is separately disposed on the bearing portion. The vane wheel is separately accommodated in the vane wheel chamber and connected correspondingly to the stator assembly. The lighting structure is disposed in the conjoined base and electrically connected to the stator assembly. Thereby, it has a simple structure and can be assembled easily and improve the overall cooling performance.

A handheld blower including a housing, an air duct defining a duct axis, the air duct including an air inlet and an air outlet opposite the air inlet, and a handle. The handle at least partially defining a battery receiving cavity configured to receive at least a portion of a battery pack therein, where the handle defines a grip axis, and where the grip axis is parallel to the duct axis.