CN118188545B - Permanent magnet synchronous fan of variable frequency air conditioner - Google Patents
Permanent magnet synchronous fan of variable frequency air conditioner Download PDFInfo
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- CN118188545B CN118188545B CN202410513924.5A CN202410513924A CN118188545B CN 118188545 B CN118188545 B CN 118188545B CN 202410513924 A CN202410513924 A CN 202410513924A CN 118188545 B CN118188545 B CN 118188545B
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Abstract
The invention discloses a permanent magnet synchronous fan of a variable frequency air conditioner, which comprises: the front side and the rear side of the shell are respectively provided with a front fan housing and a fixed bracket through bolts; further comprises: the positioning frame is fixed in the shell, is rotationally connected with the middle rotating piece, and is rotationally provided with a fan wheel through a bearing; the communication pipe fitting penetrates through the middle parts of the fixed support and the middle rotating piece, a cleaning brush rod is fixed on the communication pipe fitting, the cleaning brush rod is located on the front side of the front fan cover, a magnetic positioning component is arranged on the communication pipe fitting and the fan wheel, and magnetic attraction positioning is utilized for rotary driving of the communication pipe fitting. This frequency conversion air conditioner PMSM need not artificial participation and uses, can be at every turn the fan and participate in the back of work and adhere mixed material to the wind gap and clear up, clear up the setting of component simultaneously, can not last work when the fan starts, noise pollution in the reduction fan start-up process.
Description
Technical Field
The invention relates to the technical field of air conditioner fans, in particular to a permanent magnet synchronous fan of a variable-frequency air conditioner.
Background
The air conditioner fan is an energy-saving, high-efficiency and variable-rotation-speed ventilation exhaust component, is applied to a variable-frequency air conditioner, and is used for carrying out unidirectional diversion and discharge on air in the process of air compression temperature adjustment and variable quantity of the air conditioner, so that cold and heat exchange in the process of air compression circulation is realized, and meanwhile, the air conditioner fan is used, so that the carrying of cold and hot air flows is realized, and the cooling or heating effect in an indoor or independent isolation environment area is achieved.
The existing air conditioner fan is used as an air flow carrying facility matched with an air conditioner to achieve ventilation operation of indoor and outdoor environment air, and a frequency conversion technology is utilized to reduce power consumption and improve energy conservation of use, and the air conditioner fans of different types have basic ventilation functions and can be added with special facilities to increase active oxygen content of indoor living environment, but the following problems still exist in the use process:
Because the air conditioner fan is directly mounted on the air conditioner outdoor unit in a matched manner, and the air conditioner outdoor unit components are generally placed in an outdoor open environment and can be directly influenced by particulate solid matters such as pollution or dust in the outdoor environment, dust impurities in gas and particulate matters such as grease matters and pollutants with viscous adhesion can be collected to the air inlet position of the air conditioner fan in long-term ventilation operation, mixing and adhesion among the impurities are formed, the collection of the pollutants, the impurities and the like on an air inlet isolation screen plate of the air conditioner fan is caused, the air flow at the air inlet of the air conditioner fan is not smooth after long-term use, and the collection of harmful matters is influenced.
Aiming at the problems, innovative design is urgently needed on the basis of the original air conditioner fan.
Disclosure of Invention
The invention aims to provide a permanent magnet synchronous fan of a variable frequency air conditioner, which aims to solve the problems that dust impurities in air and particulate matters such as grease matters and pollutants with viscous adhesion are collected to the air inlet position of the air conditioner in the long-term ventilation operation of the conventional air conditioner provided by the background art, so that the mixing and adhesion among the impurities are formed, and the collection of the pollutants, the impurities and the like on an air inlet isolation screen plate of the air conditioner is caused.
In order to achieve the above purpose, the present invention provides the following technical solutions: a variable frequency air conditioner permanent magnet synchronous fan, comprising:
The front side and the rear side of the shell are respectively provided with a front fan cover and a fixed bracket through bolts, a middle rotating piece is rotatably arranged between the front fan cover and the middle part of the fixed bracket, a motor driving mechanism of the middle rotating piece is arranged in the middle of the fixed bracket, and a guide fan blade is also fixed on the outer wall of the middle part of the middle rotating piece;
Further comprises: the positioning frame is fixed in the shell, is rotationally connected with the middle rotating piece, and is rotationally provided with a fan wheel through a bearing;
the communication pipe fitting penetrates through the middle parts of the fixed support and the middle rotating piece, a cleaning brush rod is fixed on the communication pipe fitting, the cleaning brush rod is located on the front side of the front fan cover, a magnetic positioning component is arranged on the communication pipe fitting and the fan wheel, magnetic attraction positioning is utilized for rotary driving of the communication pipe fitting, and a pressure air guide component used for cleaning the brush rod and used for rotary driving is further arranged in the middle rotating piece.
Preferably, the communicating pipe fitting is communicated with the interior of the cleaning brush rod, the cleaning brush rod is fixed with hard bristles towards one side of the front fan cover, and the communicating pipe fitting, the front fan cover and the middle rotating piece are arranged to be a penetrating dismounting and mounting structure.
Preferably, the outer wall of the communicating pipe fitting is sequentially rotatably provided with a positioning cover and a connecting cover from left to right through a bearing, wherein the middle part of the positioning cover and the front fan cover is in threaded connection, and the connecting cover and the inner wall of the left end of the communicating pipe fitting are in fit sealing relative rotation sliding connection.
Preferably, the magnetic positioning member comprises an electromagnet on the outer wall of the middle cylinder structure of the fan wheel, an energizing slip ring is arranged at the rotation joint of the positioning frame and the middle rotating piece, and the electromagnet is electrically connected with an internal circuit wire of the positioning frame through the energizing slip ring;
The magnetic positioning component further comprises a pushing pin on the outer wall of the middle part of the communicating pipe fitting, permanent magnets are fixed on the upper end of the pushing pin and the communicating pipe fitting, wherein the middle part of the communicating pipe fitting is positioned in the middle rotating piece, and the electromagnet, the pushing pin and the permanent magnets are positioned in the same projection plane.
Preferably, the pressure air guide component comprises an air bag component which is internally mounted in the middle rotating piece, the left end of the air bag component is fixed on the inner wall of the middle rotating piece, an elastic piece is further mounted between the right end of the air bag component and the inner part of the middle rotating piece, a one-way air valve is mounted on the outer wall of the left end of the air bag component and the middle rotating piece in a penetrating mode, meanwhile, the middle part of the left end of the air bag component is in penetrating laminating type relative rotating connection with the right end of the communicating pipe fitting, and the right end of the communicating pipe fitting is internally provided with a gas blocking component.
Preferably, the gas barrier component comprises a pushing pin on the outer wall of the middle part of the communicating pipe fitting, the pushing pin and the communicating pipe fitting form a relative telescopic structure, elastic adhesive layers are symmetrically distributed on the inner wall of the communicating pipe fitting, elastic adhesive strips are fixed on the adjacent side edges of the elastic adhesive layers, and the middle part of the elastic adhesive strips is fixedly connected with the tail ends of the pushing pin.
Preferably, the pushing pins are in one-to-one correspondence with the elastic adhesive layers and the elastic adhesive strips, the elastic adhesive layers are symmetrically distributed about the transverse central axis of the communicating pipe fitting, the elastic adhesive layers are arranged in a semicircular mode, the elastic adhesive layers and the elastic adhesive strips realize blocking and blocking of the inside of the communicating pipe fitting, and the pushing pins are distributed along the diameter of the circular structure of the cross section of the communicating pipe fitting.
Preferably, the cleaning brush rod is further provided with an exhaust hole on one side facing the front fan cover, the exhaust hole is obliquely arranged on the cleaning brush rod, and the inclination direction of the exhaust hole is the same as the rotation direction of the cleaning brush rod and the fan wheel.
Preferably, the top and the bottom of the interior of the front-mounted fan housing are both fixed with air ducts, the head end of each air duct, which is positioned in the front-mounted fan housing, is fixed with an electromagnetic valve, the tail end of each air duct is in through connection with a communication cavity, the communication cavity is fixed on the outer wall of the front-mounted fan housing, a slip ring is movably mounted on the inner side of the communication cavity, and the slip ring is connected with the interior of the cleaning brush rod through a connector.
Preferably, the communicating cavity and the slip ring are arranged in an annular structure in coaxial distribution, the communicating cavity and the slip ring form a relative rotating structure in fit sliding connection, a rubber connecting pipe is arranged between the connector and the cleaning brush rod, and the connector is connected with the cleaning brush rod in a positioning manner through a bolt.
Compared with the prior art, the invention has the beneficial effects that: this synchronous fan of variable frequency air conditioner permanent magnetism need not artificial participation and uses, can clear up the mixed material that adheres to on the wind gap after the fan participated in at every turn, clear up the setting of component simultaneously, can not last work when the fan starts, reduces the noise pollution of fan start-up in-process, and its concrete content is as follows:
1. Only needs to start through the middle rotating piece and the fan wheel, when the middle rotating piece and the fan wheel are started normally, the air flow and the mechanical external force only drive the fan wheel to rotate, in the process, the communicating pipe fitting and the cleaning brush rod are kept relatively static due to the external pressure, and when the middle rotating piece rotates continuously, the cleaning brush rod and the communicating pipe fitting keep relatively static, so that the fan cannot generate noise and sound effects under the effects of wind damping and friction force due to the continuous rotation of the cleaning brush rod when the fan ventilates;
2. When the fan stops working, the middle rotating piece and the fan wheel on the middle rotating piece continuously rotate for a period of time and slowly stop due to inertial working, in the process, the fan wheel is started due to air flow and inertial working, meanwhile, the electromagnet is synchronously started, the communicating pipe fitting and the fan wheel synchronously rotate due to the magnetic adsorption effect between the electromagnet and the permanent magnet, and the communicating pipe fitting and the cleaning brush rod rotate after the fan stops working to remove adhesion substances on the air port;
Further, a unidirectional air valve and an air bag component are arranged on the middle rotating piece, when the fan is started, the air pressure effect enables quantitative air to be filled in the air bag component and stored, when the electromagnet and the permanent magnet are magnetic, the electromagnet synchronously drives the pushing pin to stretch through the magnetic effect, so that the pushing pin opens the elastic adhesive layer and the elastic adhesive tape, the inside of the original blocked communicating pipe fitting is opened, when the cleaning brush rod rotates, air in the air bag component is discharged from the cleaning brush rod, and the cleaning brush rod rotates more stably while the removal efficiency of adhesion substances on the air port is accelerated;
Furthermore, the communicating pipe fitting is positioned and installed on the front fan housing and the middle rotating piece through the positioning cover and the connecting cover, so that the operation is convenient, the maintenance and the replacement of accessories on the communicating pipe fitting are convenient, and meanwhile, the disassembly and the cleaning of the brush rod are convenient;
3. When the fan stops working, the electromagnetic valve synchronously works to enable the original blocking state to be changed into an open state, so that air flow driven by inertia effect after the fan stops working can be led into the communication cavity through the air guide pipe, air is led into the cleaning brush rod under the action of the connector and the slip ring, and is discharged from the air outlet hole on the cleaning brush rod, and the adhesion substance removal efficiency on the air inlet is quickened.
Drawings
FIG. 1 is a schematic diagram of the front structure of the present invention;
FIG. 2 is a schematic side sectional view of the present invention;
FIG. 3 is a schematic view of the present invention in a top-down configuration;
FIG. 4 is a schematic view of the elevation-section structure of the present invention;
FIG. 5 is a schematic view of the front mounting structure of the communicating tube and the intermediate rotary member of the present invention;
FIG. 6 is a schematic view of the back side structure of the communication pipe fitting and the intermediate rotary member of the present invention;
FIG. 7 is a schematic view of a communication tube structure according to the present invention;
FIG. 8 is a schematic view of a connecting cross-section of the connecting tube and the intermediate rotary member of the present invention;
FIG. 9 is a schematic view of the installation and distribution structure of the elastic glue layer and the elastic adhesive tape of the invention;
FIG. 10 is a schematic view of the mounting structure of the cleaning brush bar of the present invention;
FIG. 11 is a schematic view of the connection structure of the slip ring and the communication cavity of the present invention.
In the figure: 1. a housing; 2. a front fan housing; 3. a fixed bracket; 4. an intermediate rotating member; 5. flow guiding fan blades; 6. a positioning frame; 7. a fan wheel; 701. an electromagnet; 702. pushing the pin; 703. a permanent magnet; 704. an elastic adhesive layer; 705. an elastic adhesive tape; 8. a communicating pipe fitting; 801. positioning the cover; 802. a connection cover; 9. removing the brush rod; 10. an airbag module; 11. a one-way air valve; 12. an air duct; 13. an electromagnetic valve; 14. a communication chamber; 15. a slip ring; 16. and (5) a connector.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one: referring to fig. 1 to 7, the present invention provides a technical solution: a variable frequency air conditioner permanent magnet synchronous fan, comprising:
The front side and the rear side of the shell 1 are respectively provided with a front fan cover 2 and a fixed bracket 3 through bolts, a middle rotating piece 4 is rotatably arranged between the front fan cover 2 and the middle part of the fixed bracket 3, a motor driving mechanism of the middle rotating piece 4 is arranged in the middle of the fixed bracket 3, and a guide fan blade 5 is also fixed on the outer wall of the middle part of the middle rotating piece 4;
As shown in fig. 1 and fig. 2, when the motor driving mechanism is started, the motor driving mechanism can drive the middle rotating piece 4 and the guide fan blades 5 to synchronously rotate, and under the rotation action of the guide fan blades 5, the air flow in the fan is driven to flow, so that the ventilation effect of the fan is achieved.
The permanent magnet synchronous fan of the variable frequency air conditioner further comprises: the positioning frame 6 is fixed in the shell 1, the positioning frame 6 is rotationally connected with the middle rotating piece 4, and the middle rotating piece 4 is rotationally provided with a fan wheel 7 through a bearing; the communicating pipe fitting 8 penetrates through the middle parts of the fixed support 3 and the middle rotating piece 4, a cleaning brush rod 9 is fixed on the communicating pipe fitting 8, the cleaning brush rod 9 is positioned on the front side of the front fan housing 2, a magnetic positioning component is arranged on the communicating pipe fitting 8 and the fan wheel 7, magnetic attraction positioning is utilized for rotary driving of the communicating pipe fitting 8, and a pressure air guide component for cleaning the brush rod 9 in rotary driving is further arranged in the middle rotating piece 4.
The communicating pipe fitting 8 and the cleaning brush rod 9 are arranged in a penetrating way, and hard bristles are fixed on one side of the cleaning brush rod 9 facing the front fan housing 2, and the communicating pipe fitting 8, the front fan housing 2 and the middle rotating piece 4 are arranged in a penetrating dismounting and mounting structure; a positioning cover 801 and a connecting cover 802 are sequentially rotatably arranged on the outer wall of the communication pipe fitting 8 from left to right through a bearing, wherein the positioning cover 801 is in threaded connection with the middle part of the front fan housing 2, and the connecting cover 802 is in fit and sealed relative rotary sliding connection with the inner wall of the left end of the communication pipe fitting 8;
In the above technical scheme, as shown in fig. 4-7, when the middle rotating member 4 and the guide fan blade 5 are started, the magnetic positioning member is in a dormant operation state, so that the middle rotating member 4 and the guide fan blade 5 rotate, the communication pipe fitting 8 and the cleaning brush rod 9 keep relatively static under the action of airflow damping external force and friction force at the installation structure, the structure is arranged to prevent the communication pipe fitting 8 and the cleaning brush rod 9 from synchronously rotating and being perpendicular to airflow guiding of the fan when the middle rotating member 4 is started and rotated along with the fan, noise pollution caused by airflow disturbance is formed due to the friction damping effect, and low noise effect of the fan is maintained; meanwhile, the communicating pipe fitting 8 is in threaded connection with the front fan housing 2 through the positioning cover 801, the connecting cover 802 is in fit sliding connection with the communicating pipe fitting 8, and the tail end of the communicating pipe fitting 8 and the air bag assembly 10 are in coaxial penetrating function, so that the communicating pipe fitting 8 is convenient to detach, and when the communicating pipe fitting 8 and the mounting component on the cleaning brush rod 9 are subjected to fatigue damage, replacement and maintenance operation can be facilitated.
Embodiment two: the invention is as shown in fig. 2 and 7-9, the technical proposal adopts a magnetic positioning component comprising an electromagnet 701 on the outer wall of the middle cylinder structure of the fan wheel 7, an energizing slip ring is arranged at the rotation connection part of the positioning frame 6 and the middle rotating piece 4, and the electromagnet 701 is electrically connected with the internal circuit wire of the positioning frame 6 through the energizing slip ring; the magnetic positioning member further comprises a pushing pin 702 on the outer wall of the middle part of the communicating pipe fitting 8, and permanent magnets 703 are fixed on the upper end of the pushing pin 702 and the communicating pipe fitting 8, wherein the middle part of the communicating pipe fitting 8 is positioned in the middle rotating piece 4, and the electromagnet 701, the pushing pin 702 and the permanent magnets 703 are positioned in the same projection plane;
by adopting the technical scheme, the electromagnet 701 is synchronously started when the fan stops working, the fan wheel 7 continuously rotates due to the inertia of objects and the airflow flowing action, and meanwhile, the electromagnet 701 is started to generate magnetic adsorption acting force on the permanent magnet 703, so that the fan wheel 7 synchronously drives the communicating pipe fitting 8 and the cleaning brush rod 9 to clean substances adhered on the air inlet when rotating;
According to the technical scheme, as shown in fig. 8 and 9, the pressure air guide component comprises an air bag component 10 which is internally installed in the middle rotating piece 4, the left end of the air bag component 10 is fixed on the inner wall of the middle rotating piece 4, an elastic piece is further installed between the right end of the air bag component 10 and the inside of the middle rotating piece 4, a one-way air valve 11 is installed on the outer wall of the left end of the air bag component 10 and the middle rotating piece 4 in a penetrating mode, meanwhile, the middle part of the left end of the air bag component 10 is in penetrating laminating type relative rotation connection with the right end of the communicating pipe fitting 8, and the right end of the communicating pipe fitting 8 is internally provided with an air blocking component; the gas barrier component comprises a pushing pin 702 on the outer wall of the middle part of the communicating pipe fitting 8, the pushing pin 702 and the communicating pipe fitting 8 form a relative telescopic structure, elastic rubber layers 704 are symmetrically distributed on the inner wall of the communicating pipe fitting 8, elastic rubber strips 705 are fixed on the adjacent side edges of the elastic rubber layers 704, and the middle part of the elastic rubber strips 705 is fixedly connected with the tail ends of the pushing pin 702; the pushing pins 702 are in one-to-one correspondence with the elastic adhesive layers 704 and the elastic adhesive strips 705, the elastic adhesive layers 704 are symmetrically distributed about the transverse central axis of the communicating pipe fitting 8, the elastic adhesive layers 704 are arranged in a semicircular shape, the elastic adhesive layers 704 and the elastic adhesive strips 705 realize blocking and blocking of the inside of the communicating pipe fitting 8, and the pushing pins 702 are distributed along the diameter of the circular structure of the cross section of the communicating pipe fitting 8;
When the fan is normally started, air pressure acts on to enable air to be guided into the air bag component 10 through the one-way air valve 11 for temporary storage, the air bag component 10 is expanded in the process, the spring arranged at the tail end of the air bag component is compressed and deformed, the air blocking component inside the communicating pipe fitting 8 is pressed and attached to be damped through the elastic adhesive layer 704 and the elastic adhesive tape 705, the inside of the communicating pipe fitting 8 is blocked, air in the communicating pipe fitting 8 cannot be discharged, when the electromagnet 701 is started to generate magnetic adsorption acting force on the permanent magnet 703, the pushing pin 702 on the communicating pipe fitting 8 stretches under the magnetic action, the pushing pin 702 enables the elastic adhesive layer 704 and the elastic adhesive tape 705 to deform, the inside blocking state of the communicating pipe fitting 8 is opened, and the air inside the air bag component 10 can be discharged, and is guided into the cleaning brush rod 9 through the communicating pipe fitting 8.
According to the technical scheme shown in the figures 1-3, 10 and 11, one side of the cleaning brush rod 9, which faces the front fan cover 2, is provided with an exhaust hole, the exhaust hole is obliquely arranged on the cleaning brush rod 9, and the oblique direction of the exhaust hole is the same as the rotation direction of the cleaning brush rod 9 and the fan wheel 7; the top and the bottom of the interior of the front-mounted fan housing 2 are both fixed with air guide pipes 12, the head end of the air guide pipe 12 positioned in the front-mounted fan housing 2 is fixed with an electromagnetic valve 13, the tail end of the air guide pipe 12 is communicated with a communication cavity 14, the communication cavity 14 is fixed on the outer wall of the front-mounted fan housing 2, the inner side of the communication cavity 14 is movably provided with a slip ring 15, and the slip ring 15 is connected with the interior of the cleaning brush rod 9 through a connector 16; the communication cavity 14 and the slip ring 15 are arranged in an annular structure which is coaxially distributed, the communication cavity 14 and the slip ring 15 form a relative rotating structure which is in fit sliding connection, a rubber connecting pipe is arranged between the connector 16 and the cleaning brush rod 9, and the connector 16 is connected with the cleaning brush rod 9 in a positioning way through bolts;
the setting of cleaing away brush-holder stud 9, through the setting of intercommunication pipe fitting 8 location installation, be connected with sliding ring 15 through connector 16 at its rod end, conveniently clear away brush-holder stud 9 dismouting and change, simultaneously when the fan work of above-mentioned stops, solenoid valve 13 opens, make the gas that flows in the fan can also be led into through air duct 12 and communicate chamber 14 and clear away in the brush-holder stud 9, in the same embodiment, the exhaust hole that the gas in the brush-holder stud 9 was passed through on discharges, the discharge of air current and the rotatory effort of intercommunication pipe fitting 8, it is rotatory to drive the brush-holder stud 9 in step, clear up the material that adheres to on the leading fan housing 2, simultaneously the fan is after stopping starting because the air current that flows in the inertial effect fan is brief and a small amount, but the intercommunication pipe fitting 8 and the brush-holder stud 9 only need rotate two to three circles can, do not need to rotate constantly, because can clear away the adhesion to leading fan housing 2 after every fan stops, have good cleaning effect.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (10)
1. A variable frequency air conditioner permanent magnet synchronous fan, comprising:
The front side and the rear side of the shell (1) are respectively provided with a front fan cover (2) and a fixed bracket (3) through bolts, a middle rotating piece (4) is rotatably arranged between the front fan cover (2) and the middle part of the fixed bracket (3), a motor driving mechanism of the middle rotating piece (4) is arranged in the middle of the fixed bracket (3), and a guide fan blade (5) is further fixed on the outer wall of the middle part of the middle rotating piece (4);
Characterized by further comprising:
The positioning frame (6) is fixed in the shell (1), the positioning frame (6) is rotationally connected with the middle rotating piece (4), and the middle rotating piece (4) is rotationally provided with a fan wheel (7) through a bearing;
The communication pipe fitting (8), it runs through to the middle part of fixed bolster (3) and middle rotating member (4), and be fixed with on the communication pipe fitting (8) and clear away brush-holder stud (9), clear away brush-holder stud (9) and be located the front side of leading fan housing (2) to be provided with magnetic positioning component on communication pipe fitting (8) and fan wheel (7), utilize magnetism to inhale the rotary drive that the location is used for communication pipe fitting (8) mutually, still be provided with in middle rotating member (4) and clear away the pressure air guide component when brush-holder stud (9) rotary drive.
2. The variable frequency air conditioner permanent magnet synchronous fan according to claim 1, wherein: the connecting pipe fitting (8) is communicated with the inside of the cleaning brush rod (9), hard bristles are fixed on one side of the cleaning brush rod (9) facing the front fan housing (2), and the connecting pipe fitting (8), the front fan housing (2) and the middle rotating piece (4) are arranged to be penetrated in a detachable installation structure.
3. The variable frequency air conditioner permanent magnet synchronous fan according to claim 2, wherein: the outer wall of the communication pipe fitting (8) is sequentially rotatably provided with a positioning cover (801) and a connecting cover (802) through bearings from left to right, wherein the middle parts of the positioning cover (801) and the front-mounted fan housing (2) are in threaded connection, and the connecting cover (802) and the inner wall of the left end of the communication pipe fitting (8) are in fit sealing relative rotation sliding connection.
4. The variable frequency air conditioner permanent magnet synchronous fan according to claim 1, wherein: the magnetic positioning component comprises an electromagnet (701) on the outer wall of the middle cylinder structure of the fan wheel (7), an energizing slip ring is arranged at the rotation connection part of the positioning frame (6) and the middle rotating piece (4), and the electromagnet (701) is electrically connected with an internal circuit lead of the positioning frame (6) through the energizing slip ring;
The magnetic positioning member further comprises a pushing pin (702) on the outer wall of the middle part of the communicating pipe fitting (8), permanent magnets (703) are fixed at the upper end of the pushing pin (702) and on the communicating pipe fitting (8), wherein the middle part of the communicating pipe fitting (8) is located in the middle rotating piece (4), and the electromagnet (701), the pushing pin (702) and the permanent magnets (703) are located in the same projection plane.
5. The variable frequency air conditioner permanent magnet synchronous fan according to claim 1 or 4, wherein: the pressure air guide component comprises an air bag component (10) which is internally mounted in the middle rotating piece (4), the left end of the air bag component (10) is fixed on the inner wall of the middle rotating piece (4), an elastic piece is further mounted between the right end of the air bag component (10) and the inside of the middle rotating piece (4), a one-way air valve (11) is mounted on the outer wall of the left end of the air bag component (10) and the middle rotating piece (4) in a penetrating mode, meanwhile, the middle of the left end of the air bag component (10) is in penetrating laminating type relative rotating connection with the right end of a communicating pipe fitting (8), and a gas blocking component is arranged inside the right end of the communicating pipe fitting (8).
6. The variable frequency air conditioner permanent magnet synchronous fan according to claim 5, wherein: the gas barrier component comprises a pushing pin (702) on the outer wall of the middle of the communicating pipe fitting (8), the pushing pin (702) and the communicating pipe fitting (8) form a relative telescopic structure, elastic adhesive layers (704) are symmetrically distributed on the inner wall of the communicating pipe fitting (8), elastic adhesive strips (705) are fixed on the adjacent side edges of the elastic adhesive layers (704), and the middle of the elastic adhesive strips (705) are fixedly connected with the tail ends of the pushing pin (702).
7. The variable frequency air conditioner permanent magnet synchronous fan according to claim 6, wherein: the pushing pins (702) are in one-to-one correspondence with the elastic adhesive layers (704) and the elastic adhesive strips (705), the elastic adhesive layers (704) are symmetrically distributed on the transverse central axis of the communicating pipe fitting (8), the elastic adhesive layers (704) are arranged in a semicircular mode, blocking and blocking of the inside of the communicating pipe fitting (8) are achieved through the elastic adhesive layers (704) and the elastic adhesive strips (705), and the pushing pins (702) are distributed along the diameter of the circular cross section structure of the communicating pipe fitting (8).
8. The variable frequency air conditioner permanent magnet synchronous fan according to claim 1 or 7, wherein: the cleaning brush rod (9) is provided with an exhaust hole on one side facing the front fan cover (2), the exhaust hole is obliquely arranged on the cleaning brush rod (9), and the oblique direction of the exhaust hole is the same as the rotation direction of the cleaning brush rod (9) and the fan wheel (7).
9. The variable frequency air conditioner permanent magnet synchronous fan according to claim 8, wherein: the inside top and the bottom of leading fan housing (2) all are fixed with air duct (12), and the head end that air duct (12) are located leading fan housing (2) is fixed with solenoid valve (13), and the end and the intercommunication chamber (14) of air duct (12) link up and are connected, and intercommunication chamber (14) are fixed in on the outer wall of leading fan housing (2), and the inboard movable mounting of intercommunication chamber (14) has sliding ring (15), and sliding ring (15) pass through connector (16) and clear away the internal connection of brush-holder stud (9).
10. The variable frequency air conditioner permanent magnet synchronous fan according to claim 9, wherein: the connecting cavity (14) and the slip ring (15) are arranged in an annular structure in coaxial distribution, the connecting cavity (14) and the slip ring (15) form a relative rotating structure in fit sliding connection, a rubber connecting pipe is arranged between the connecting head (16) and the cleaning brush rod (9), and the connecting head (16) is connected with the cleaning brush rod (9) in a positioning mode through bolts.
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| CN202410513924.5A CN118188545B (en) | 2024-04-26 | 2024-04-26 | Permanent magnet synchronous fan of variable frequency air conditioner |
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| CN202410513924.5A CN118188545B (en) | 2024-04-26 | 2024-04-26 | Permanent magnet synchronous fan of variable frequency air conditioner |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653657A (en) * | 2021-08-31 | 2021-11-16 | 王自明 | Frequency conversion axial fan |
| CN220378519U (en) * | 2023-08-04 | 2024-01-23 | 佛山市风泰风机科技有限公司 | Axial flow centrifugal fan of vertical annealing furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10655645B2 (en) * | 2018-03-28 | 2020-05-19 | Lenovo Enterprise Solutions (Singapore) Pte. Ltd. | Fan systems including brushes and bristles for self-cleaning |
| CN220769737U (en) * | 2023-04-20 | 2024-04-12 | 山东冰恒制冷科技有限公司 | Axial flow fan capable of treating surface dust |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653657A (en) * | 2021-08-31 | 2021-11-16 | 王自明 | Frequency conversion axial fan |
| CN220378519U (en) * | 2023-08-04 | 2024-01-23 | 佛山市风泰风机科技有限公司 | Axial flow centrifugal fan of vertical annealing furnace |
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