CN114679015B - Frequency conversion integrated three-phase asynchronous motor - Google Patents
Frequency conversion integrated three-phase asynchronous motor Download PDFInfo
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- CN114679015B CN114679015B CN202210252360.5A CN202210252360A CN114679015B CN 114679015 B CN114679015 B CN 114679015B CN 202210252360 A CN202210252360 A CN 202210252360A CN 114679015 B CN114679015 B CN 114679015B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
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- Thermal Sciences (AREA)
- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a frequency conversion integrated three-phase asynchronous motor which comprises a motor body, a frequency converter and a motor cooling device, wherein the motor body is connected with the frequency converter through a dismounting and mounting structure; the motor body is provided with an input terminal frame, a frequency converter is fixedly arranged in the input terminal frame through a dismounting and mounting structure, the dismounting and mounting structure comprises a mounting block and a fixing column which are fixedly arranged in the input terminal frame, a supporting spring is sleeved outside the fixing column, the dismounting and mounting structure also comprises a fixing sleeve arranged at the bottom of the front side and the rear side of the frequency converter, guide blocks are fixedly arranged at the left side and the right side of the fixing sleeve, a spring groove is formed in the guide blocks, and a positioning pin penetrates through the guide blocks and extends into the inner cavity of the fixing sleeve; the frequency converter is convenient to disassemble due to the disassembling and assembling structure; the motor cooling device improves the heat dissipation performance of the motor body and prolongs the service life of the motor; the setting of depositing the line box body has avoided the motor to be in a jumble in the converter wiring, and need not demolish the wire and can pull down the converter and inspect and maintain.
Description
Technical Field
The invention relates to the technical field of variable frequency motors, in particular to a variable frequency integrated three-phase asynchronous motor.
Background
The variable frequency speed regulating motor is called as variable frequency motor for short, and is a general name of a motor driven by a frequency converter, and the motor can realize different rotating speeds and torques under the driving of the frequency converter so as to adapt to the requirement change of a load; the existing variable frequency motor has a severe use environment and poor heat dissipation condition, and the variable frequency motor often breaks down due to overhigh working temperature for a long time; in the frequency conversion integrated three-phase asynchronous motor, the frequency converter is directly and fixedly arranged on the motor body, so that the frequency converter needs to be disassembled and maintained when the frequency converter breaks down, and in the traditional bolt installation mode, the bolt is practical for a long time, easy to rust and difficult to disassemble, and enough disassembling operation space is needed, so that the frequency converter is time-consuming and labor-consuming to disassemble and assemble; the output of converter need pass through the wire with the input of motor and be connected, and traditional connected mode connecting wire's length is fixed and unable regulation, and the winding easily takes place for the three-phase line, and connecting wire places in a jumble in the terminal frame of motor wiring, influences the dismouting of converter, and easily takes safety hidden danger.
The prior application CN110898023A discloses a measurement and control integrated motor, which solves some technical problems of distributed control and monitoring of a speed reduction motor equipment cluster, and comprises (1) the existing control system and a state monitoring system belong to two systems, hardware equipment redundancy with similar functions is caused in the aspect of hardware, and various signals are easy to form mutual interference in an industrial field; (2) The power cables, the control signal cables and the state monitoring signal cables for the cluster-distributed gear motor equipment form loops respectively, so that the problems of excessive cables, large wiring workload and the like are caused, the operation errors of field installation and debugging personnel are easily caused, and more fault hidden trouble points exist; (3) The separation of the control system and the monitoring system causes the cost of a power supply cable, a control signal cable and a state monitoring signal wireless transmitting device used by the speed reducing motor equipment cluster and the cost of wiring working hours. However, it does not address: in the traditional bolt installation mode, the bolt is practical for a long time, easy to rust and difficult to disassemble, and enough disassembling operation space is needed, so that the frequency converter is time-consuming and labor-consuming to disassemble and assemble; the output of converter need pass through the wire with the input of motor and be connected, and traditional connected mode connecting wire's length is fixed and unable regulation, and the winding easily takes place for the three-phase line, and connecting wire places in a jumble in the terminal frame of motor wiring, influences the dismouting of converter, and easily takes safety hidden danger, such technical problem.
Disclosure of Invention
The present invention aims to overcome the above-mentioned shortcomings and provide a technical solution to solve the above-mentioned problems.
A frequency conversion integrated three-phase asynchronous motor comprises a motor body, a frequency converter and a motor cooling device, wherein the motor body and the frequency converter are connected through a dismounting and mounting structure; the motor cooling device comprises a cooling fan arranged on the side provided with the motor rotor, the cooling fan is in key connection with the motor rotor, and the motor cooling device also comprises a conical guide sleeve rotationally connected to the motor rotor through a bearing; the diameter of one end, far away from the cooling fan, of the conical guide sleeve is larger than that of one end, close to the cooling fan, of the conical guide sleeve, a motor right side plate is fixedly mounted at one end, far away from the cooling fan, of the conical guide sleeve, a motor body is fixedly mounted on the left side of the motor right side plate, radiating fins arranged in parallel to the direction of a motor rotor are uniformly and fixedly mounted on the peripheral side of the motor body, an input end wiring end sub-frame is arranged on the motor body, a frequency converter is fixedly mounted in the input end wiring end sub-frame through a dismounting and mounting structure, the dismounting and mounting structure comprises a mounting block and a fixing column which are fixedly mounted in the input end wiring end sub-frame, the fixing column is mounted at the top end of the mounting block, a support spring is sleeved on the outer side of the fixing column, and the bottom end of the support spring is fixedly connected with the mounting block; the dismounting and mounting structure also comprises a fixed sleeve arranged at the bottom of the front side surface and the rear side surface of the frequency converter, guide blocks are fixedly mounted at the left side and the right side of the fixed sleeve, a spring groove is formed in each guide block, and a positioning pin penetrates through each guide block and extends into an inner cavity of the fixed sleeve; the guide spring is sleeved on the outer side of the positioning pin, one side of the guide spring, which is far away from the fixing sleeve, abuts against the side wall of the spring groove, and the guide spring is close to one side of the fixing sleeve for fixedly connecting the positioning pin.
The motor cooling device is arranged to enable the motor to have a good heat dissipation effect, and long-time stable operation of the motor is guaranteed.
Furthermore, the number of the fixed columns and the number of the fixed sleeves are four, the fixed columns are opposite to the fixed sleeves, the fixed columns comprise supporting sections at the bottom and guiding sections at the top, supporting springs are sleeved on the outer sides of the supporting sections, upper convex fixed ball blocks are fixedly mounted at the top ends of the guiding sections, lower convex movable ball blocks are slidably sleeved on the guiding sections, gaps are formed between the upper convex fixed ball blocks and the lower convex movable ball blocks, and the gaps are larger than the diameters of the positioning pins.
Wherein, fixed column and fixed sleeve all are provided with four, and the position is just to setting up, direction when the converter dismouting of being convenient for, fixed ball piece of epirelief and supporting spring's setting has restricted fixed telescopic up-and-down motion, makes the converter fixed firm, and dismantles simple to operate.
Furthermore, the top end of the positioning pin is a tip end, the upper surface of the tip end of the positioning pin is a plane, and the lower surface of the tip end of the positioning pin is an arc-shaped surface.
The top end of the positioning pin is a tip end, and the upper surface of the tip end is a plane so as to be conveniently attached to the lower surface of the upper convex fixing ball block; the lower surface of the tip is an arc-shaped surface, when the positioning pin moves downwards, the arc-shaped surface enables the positioning pin and the upper surface of the lower convex movable ball block to slide relatively, and the positioning pin and the upper surface of the lower convex movable ball block are gradually ejected out of the inner cavity of the fixed sleeve.
Further, motor cooling device still includes the air guide sleeve of fixed connection on the left of motor right side board, a determining deviation has between air guide sleeve inner wall and the fin top, air guide sleeve cladding motor body sets up, constitute the wind-guiding passageway between two adjacent fins and the air guide sleeve inner wall.
The arrangement of the air guide channel enables cold air blown out by the cooling fan to be accurately guided and distributed, and heat on the radiating fins can be taken away.
Further, the motor right side board includes the grid that circumference was arranged, the thickness that the grid is close to motor body side is the same with the thickness of fin, grid thickness reduces to keeping away from motor body side direction gradually, the space that constitutes between two adjacent grids is just right wind-guiding passageway.
Wherein, grid thickness reduces gradually to keeping away from motor body side direction, and its thickness tends to zero gradually, and the grid mode of setting has reduced the resistance that cold wind got into between the adjacent two grids, is favorable to the direction of cold wind, reduces cold wind energy loss.
Further, the converter is including setting up at its positive control panel and setting up the adjust knob on control panel, converter leading flank fixed mounting has and deposits line box and output binding post, the upper end of depositing the line box sets up the wire export, the lower extreme of depositing the line box sets up the wire entry, it has the spool to deposit the internal fixed mounting of line box, rotate on the spool and install a plurality of wire winding cylinders, fixed connection between a plurality of wire winding cylinders, wire winding cylinder with set up the torsional spring between the spool, the one end fixed connection spool of torsional spring, the other end fixed connection wire winding cylinder of torsional spring.
When an output terminal of the frequency converter is connected with an input terminal in an input terminal frame arranged on the motor body through a wire, one end of the wire is firstly connected with the input terminal of the motor body, after each terminal at the input end of the motor body is connected with different wires, each wire is led in from a wire inlet of the wire storage box body, is respectively wound on adjacent winding rollers, is led out from a wire outlet of the wire storage box body after being wound to a plurality of circles to a proper length, and the other end of each wire is respectively connected with the corresponding output terminal of the frequency converter; the length of connecting wire between converter output binding post and the motor input binding post can be adjusted in the setting of this structure, need not demolish the wire and can pull down the converter and inspect and maintain, and the three-phase line emergence winding has been avoided in the setting of this structure.
Further, the left end of the motor body is fixedly provided with a motor left side plate, the structure of the motor left side plate is the same as that of the motor right side plate, and the air guide sleeve is fixedly connected with the motor left side plate.
Wherein, the air guide sleeve is fixed jointly to motor left side board and motor right side board, and motor left side plate structure is the same with motor right side plate structure, and the cold wind of being convenient for blows out through the left side board.
Further, the motor cooling device further comprises a cover body covering the outer side of the cooling fan, the cover body is fixedly connected with the right side plate of the motor through a bolt, and the cover body is provided with a filter screen over against the cooling fan.
Wherein, the cover body is used for protecting cooling fan, and the filter screen is arranged in the impurity of filtered air, avoids motor body's the outside to pile up the dust.
Furthermore, the motor cooling device further comprises a cooling circulating water pipe arranged outside the air guide sleeve in a winding mode, and the cooling circulating water pipe, the water pump and the cooling water tank form a circulating cooling structure.
Wherein, a water cooling device is arranged in the cooling water tank, the cooling water can continuously cool the circulating water, and the water pump drives the circulating water to continuously flow around the outer side of the air guide sleeve to take away the redundant heat on the air guide sleeve; although the arrangement of the air guide channel enables the wind direction to be parallel to the axial direction of the air guide sleeve, heat can be transmitted to the air guide sleeve, and the arrangement of the cooling circulating water pipe further optimizes the heat dissipation effect of the motor.
Has the advantages that:
(1) The invention is provided with a dismounting and mounting structure between a motor body and a frequency converter, wherein the dismounting and mounting structure comprises a mounting block and a fixing column which are fixedly mounted in an input terminal frame, and fixing sleeves which are arranged at the bottoms of the front side surface and the rear side surface of the frequency converter; when the frequency converter is disassembled, the frequency converter is only required to be continuously pressed downwards, the positioning pin is enabled to move to the lower side of the lower convex movable ball block, the frequency converter is vertically pulled upwards, the positioning pin moves upwards, the lower convex movable ball block synchronously moves upwards under the supporting effect of the positioning pin until the upper end face of the lower convex movable ball block coincides with the lower end face of the upper convex fixed ball block, in the process, the positioning pin is ejected out of the inner cavity of the fixed sleeve under the limiting effect of the outline of the lower convex movable ball block, and at the moment, the frequency converter and the positioning pin continuously move upwards until the frequency converter is disassembled.
(2) The motor cooling device comprises a cooling fan arranged on the side provided with the motor rotor and a conical guide sleeve, and the conical guide sleeve is arranged to guide cold air blown out by the cooling fan through the conical guide sleeve, so that most of the cold air flows to the peripheral edge of the right side plate of the motor, the energy loss of the cold air is reduced, and the cooling effect is improved; the cold air blown out by the cooling fan enters a space formed by the adjacent grids after reaching the edge of the periphery of the right side plate of the motor, and is guided into a wind guide channel formed by the adjacent two cooling fins on the motor body and the inner wall of the wind guide sleeve because the space formed by the adjacent two grids is over against the wind guide channel, wherein the thickness of the grids is gradually reduced towards the direction far away from the motor body, so that the cold air is further guided; through the setting of wind-guiding passageway for the cold wind that cooling fan blew out is by accurate direction and reposition of redundant personnel, does benefit to and takes away the heat on the fin, utilizes the limited amount of wind to obtain the most ideal radiating effect to a certain extent.
(3) The front side surface of the frequency converter is fixedly provided with the wire storage box body, the wire storage box body can adjust the length of a connecting wire between a connecting terminal at the output end of the frequency converter and a connecting terminal at the input end of a motor, the wire is automatically tightened, the winding of a three-phase connecting wire is avoided, and the connecting wire is placed in a mess in a sub-frame of the connecting terminal of the motor.
(4) The motor cooling device also comprises a cooling circulating water pipe arranged outside the air guide sleeve in a winding manner, and a water pump and a cooling water tank which are communicated in a circulating manner, wherein a water cooling device is arranged in the cooling water tank, so that the circulating water can be cooled continuously, and the water pump drives the circulating water to flow continuously around the outer side of the air guide sleeve to take away redundant heat on the air guide sleeve; although the arrangement of the air guide channel enables the wind direction to be parallel to the axial direction of the air guide sleeve, heat can still be transferred to the air guide sleeve, and the arrangement of the cooling circulating water pipe further optimizes the heat dissipation effect of the motor.
Drawings
FIG. 1 is a front view of the overall structure of the present invention;
FIG. 2 is a top view of the overall structure of the present invention with the cooling circulation water pipe removed;
fig. 3 is a schematic structural view of fig. 2 with the air guide sleeve and the frequency converter removed;
FIG. 4 isbase:Sub>A sectional view taken along line A-A of FIG. 1 with the cooling circulation water pipe removed, according to the present invention;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4 in accordance with the present invention;
FIG. 6 is a schematic view of the right side plate of the motor of the present invention;
FIG. 7 is a front cross-sectional view of a frequency converter of the present invention;
FIG. 8 is an enlarged view of the structure at A in FIG. 7 according to the present invention;
FIG. 9 is a schematic view of a fixing post structure according to the present invention;
FIG. 10 is a schematic view of the disassembling process of the disassembling and assembling structure of the present invention.
In the figure: 1. a motor body; 2. a frequency converter; 3. a motor rotor; 4. a cooling fan; 5. a tapered guide sleeve; 6. a right side plate of the motor; 7. a heat sink; 8. an input terminal frame; 9. mounting blocks; 10. fixing a column; 11. a support spring; 12. fixing the sleeve; 13. a guide block; 14. a spring slot; 15. positioning pins; 16. a guide spring; 17. a convex fixed ball block; 18. a lower convex movable ball block; 19. an air guide sleeve; 20. a grid; 21. a control panel; 22. adjusting a knob; 23. a wire storage box body; 24. an output terminal connecting terminal; 25. a spool; 26. a winding drum; 27. a torsion spring; 28. a left side plate of the motor; 29. a cover body; 30. a filter screen; 31. cooling the circulating water pipe; 32. a water pump; 33. and a cooling water tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a frequency conversion integrated three-phase asynchronous motor comprises a motor body 1 (arranged on the inner side of an air guide sleeve 19), a frequency converter 2 and a motor cooling device, wherein the motor body 1 and the frequency converter 2 are connected through a disassembly and assembly structure;
specifically, the frequency converter 2 and the motor body 1 are convenient to disassemble and assemble due to the arrangement of the disassembling and assembling structure, and the frequency converter 2 is convenient to maintain; the motor cooling device is arranged, so that the motor has a good heat dissipation effect, and the long-time stable operation of the motor is ensured.
Referring to fig. 3-5, a motor body 1 is fixedly mounted between a left motor side plate 28 and a right motor side plate 6, heat dissipation fins 7 arranged parallel to the direction of a motor rotor 3 are uniformly and fixedly mounted on the periphery of the motor body 1, an input terminal frame 8 is arranged on the motor body 1, and a frequency converter 2 is fixedly mounted in the input terminal frame through a dismounting and mounting structure (the frequency converter 2 is not shown in fig. 3).
The motor cooling device comprises a cooling fan 4 arranged on the side provided with the motor rotor 3, the cooling fan 4 is in key connection with the motor rotor 3, and the motor cooling device also comprises a conical guide sleeve 5 which is rotationally connected to the motor rotor 3 through a bearing; the diameter of one end of the conical guide sleeve 5 far away from the cooling fan 4 is larger than that of one end close to the cooling fan 4, and a motor right side plate 6 is fixedly mounted at one end of the conical guide sleeve 5 far away from the cooling fan 4.
The conical guide sleeve 5 is arranged, so that most of cold air blown out by the cooling fan 4 flows to the peripheral edge of the right side plate 6 of the motor through the guide of the conical guide sleeve 5, the energy loss of the cold air is reduced, and the cooling effect is improved.
Referring to fig. 4-6, the motor cooling device further includes an air guiding sleeve 19 fixedly connected to the left side of the right side plate 6 of the motor, a certain distance is provided between the inner wall of the air guiding sleeve 19 and the top ends of the heat dissipation fins 7, the air guiding sleeve 19 is disposed to cover the motor body 1, and an air guiding channel is formed between two adjacent heat dissipation fins 7 and the inner wall of the air guiding sleeve 19. The right side plate 6 of the motor comprises grids 20 which are circumferentially arranged, the thickness of the grid 20 close to the side of the motor body 1 is the same as that of the radiating fins 7, the thickness of the grid 20 is gradually reduced towards the direction far away from the side of the motor body 1, and a space formed between every two adjacent grids 20 is over against the air guide channel.
After the cold air blown out by the cooling fan 4 reaches the peripheral side edge of the right side plate 6 of the motor, the cold air enters the space formed between the adjacent grids 20, the space formed between the two adjacent grids 20 is over against the air guide channel, the cold air is guided to enter the space formed between the two adjacent radiating fins 7 on the motor body 1 and the inner wall of the air guide sleeve 19 to form the air guide channel, and the arrangement of the air guide channel enables the cold air blown out by the cooling fan 4 to be accurately guided and shunted, so that the heat on the radiating fins 7 can be favorably taken away. Grid 20 thickness reduces to keeping away from 1 side direction of motor body gradually, and its thickness tends to zero gradually, and grid 20 sets up the mode, has reduced the resistance that cold wind got into between two adjacent grids 20, is favorable to the direction of cold wind, reduces cold wind energy loss.
Referring to fig. 4, a left side plate 28 of the motor is fixedly mounted at the left end of the motor body 1, the left side plate 28 of the motor has the same structure as the right side plate 6 of the motor, and the air guide sleeve 19 is fixedly connected to the left side plate 28 of the motor.
The air guide sleeve 19 is fixed by the motor left side plate 28 and the motor right side plate 6 together, and the structure of the motor left side plate 28 is the same as that of the motor right side plate 6, so that cold air can be blown out through the left side plate conveniently.
Referring to fig. 4, the motor cooling device further includes a cover 29 covering the cooling fan 4, the cover 29 is fixedly connected to the right side plate 6 of the motor through a bolt, and a filter screen 30 is disposed at a position where the cover 29 faces the cooling fan 4.
The cover 29 is used to protect the cooling fan 4, and the filter screen 30 is used to filter impurities in the air, so as to prevent dust from accumulating outside the motor body 1.
Referring to fig. 1, the motor cooling device includes a cooling circulation water pipe 31 wound around the outer side of the air guiding sleeve 19, and the cooling circulation water pipe 31, a water pump 32 and a cooling water tank 33 form a circulating cooling structure.
Wherein, a water cooling device is arranged in the cooling water tank 33, which can continuously cool the circulating water, and the water pump 32 drives the circulating water to continuously flow around the outer side of the air guide sleeve 19, so as to take away the redundant heat on the air guide sleeve 19; although the wind guide channel is arranged to enable the wind direction to be parallel to the axial direction of the wind guide sleeve 19, heat can still be transmitted to the wind guide sleeve 19, and the arrangement of the cooling circulating water pipe 31 further optimizes the heat dissipation effect of the motor.
Referring to fig. 2 (which shows a top view of the frequency converter 2), the frequency converter 2 includes a control panel 21 disposed on a front surface thereof and an adjusting knob 22 disposed on the control panel 21, a wire storage box 23 and an output terminal 24 are fixedly mounted on a front side surface of the frequency converter 2,
referring to fig. 7 (showing a front view of the frequency converter 2), a wire outlet is disposed at an upper end of the wire storage box 23, a wire inlet is disposed at a lower end of the wire storage box 23, a winding reel 25 is fixedly mounted in the wire storage box 23, a plurality of winding rollers 26 are rotatably mounted on the winding reel 25, the plurality of winding rollers 26 are fixedly connected with each other, a torsion spring 27 is disposed between the winding rollers 26 and the winding reel 25, one end of the torsion spring 27 is fixedly connected with the winding reel, and the other end of the torsion spring 27 is fixedly connected with the winding rollers 26.
When the output terminal 24 of the frequency converter 2 is connected with the input terminal in the input terminal sub-frame 8 arranged on the motor body 1 through a wire, one end of the wire is firstly connected with the input terminal of the motor body 1, after each terminal at the input end of the motor body 1 is connected with different wires, each wire is led in from the wire inlet of the wire storage box 23, respectively wound on the adjacent winding rollers 26, and led out from the wire outlet of the wire storage box 23 after being wound to a plurality of turns to a proper length, and the other end of each wire is respectively connected with the corresponding output terminal 24 of the frequency converter 2; the length of connecting wire between 2 output binding post 24 of converter and the motor input binding post can be adjusted in the setting of this structure, need not demolish the wire and can pull down converter 2 and inspect and maintain, and the winding has been avoided the three-phase line to the setting of this structure.
Referring to fig. 8-9, the dismounting and mounting structure includes a mounting block 9 and a fixing post 10 fixedly mounted in the terminal frame 8 of the input terminal, the fixing post 10 is mounted at the top end of the mounting block 9, a supporting spring 11 is sleeved outside the fixing post 10, and the bottom end of the supporting spring 11 is fixedly connected with the mounting block 9; the dismounting and mounting structure also comprises a fixed sleeve 12 arranged at the bottom of the front side surface and the rear side surface of the frequency converter 2, guide blocks 13 are fixedly mounted at the left side and the right side of the fixed sleeve 12, a spring groove 14 is formed in each guide block 13, and a positioning pin 15 penetrates through each guide block 13 and extends into an inner cavity of the fixed sleeve 12; the guide spring 16 is sleeved outside the positioning pin 15, one side of the guide spring 16, which is far away from the fixing sleeve 12, abuts against the side wall of the spring groove 14, and one side of the guide spring 16, which is close to the fixing sleeve 12, is fixedly connected with the positioning pin 15.
The top of locating pin 15 is most advanced setting, and the tip upper surface of locating pin 15 is the plane, and the lower surface is the arcwall face. The top end of the positioning pin 15 is a tip end, and the upper surface of the tip end is a plane so as to be conveniently attached to the lower surface of the upper convex fixing ball block 17; the lower surface of the tip is an arc surface, and when the positioning pin 15 moves downwards, the arc surface enables the positioning pin 15 and the upper surface of the lower convex movable ball block 18 to slide relatively and be gradually ejected out of the inner cavity of the fixed sleeve 12.
Referring to fig. 2-3, four fixed columns 10 and four fixed sleeves 12 are provided, the fixed columns 10 face the fixed sleeves 12, each fixed column 10 includes a bottom supporting section and a top guiding section, a supporting spring 11 is sleeved outside the supporting section, an upper convex fixed ball block 17 is fixedly mounted at the top end of the guiding section, a lower convex movable ball block 18 is slidably sleeved on the guiding section, and a gap is provided between the upper convex fixed ball block 17 and the lower convex movable ball block 18, and the gap is larger than the diameter of the positioning pin 15.
Wherein, fixed column 10 and fixed sleeve 12 all are provided with four, and the position is just to setting up, direction when the 2 dismouting of converter of being convenient for, fixed ball piece 17 of epirelief and supporting spring 11's setting have restricted fixed sleeve 12's up-and-down motion, make converter 2 fixed firm, and dismantle simple to operate.
Referring to fig. 10, fig. 10 shows a disassembly process of the disassembly and assembly structure, when the assembly is performed, only the fixing post 10 needs to be aligned with the fixing sleeve 12, the frequency converter 2 is pressed vertically downward, when all the positioning pins 15 are clamped on the lower end surface of the upper convex fixing ball block 17, the supporting spring 11 is compressed downward by the fixing sleeve 12 for a certain distance, and the frequency converter 2 is assembled and fixed under the supporting of the supporting spring 11 and the clamping action of the positioning pins 15 (see fig. 10 a);
when the frequency converter 2 is dismounted, the frequency converter 2 is only required to be pressed downwards continuously, the supporting spring 11 is further compressed, the positioning pin 15 is moved to the position of the lower convex movable ball block 18 (see fig. 10 b), when the positioning pin 15 is moved to the lower side of the lower convex movable ball block 18 (the downward pressing limit position), the frequency converter 2 is pulled vertically upwards, the positioning pin 15 moves upwards, the lower convex movable ball block 18 moves upwards synchronously under the supporting action of the positioning pin 15 until the upper end surface of the lower convex movable ball block 18 is overlapped with the lower end surface of the upper convex fixed ball block 17 (see fig. 10 c), the frequency converter 2 is pulled upwards continuously, the lower convex movable ball block 18 cannot move upwards continuously, the positioning pin 15 is pushed out of the inner cavity of the fixed sleeve 12 under the limiting action of the profile of the lower convex movable ball block 18, the positioning pin 15 is separated from the profile of the lower convex movable ball block 18, the lower convex movable ball block 18 slides downwards to the initial position (see fig. 10 d), and the frequency converter 2 and then continues to move upwards until the frequency converter 2 is dismounted.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (9)
1. The utility model provides a frequency conversion integral type three-phase asynchronous motor which characterized in that: the motor comprises a motor body (1), a frequency converter (2) and a motor cooling device, wherein the motor body (1) is connected with the frequency converter (2) through a dismounting and mounting structure; the motor cooling device comprises a cooling fan (4) arranged on the side provided with the motor rotor (3), wherein the cooling fan (4) is in key connection with the motor rotor (3), and the motor cooling device also comprises a conical guide sleeve (5) rotationally connected to the motor rotor (3) through a bearing; the diameter of one end, far away from the cooling fan (4), of the conical guide sleeve (5) is larger than that of one end, close to the cooling fan (4), of the conical guide sleeve (5), a motor right side plate (6) is fixedly installed at one end, far away from the cooling fan (4), of the conical guide sleeve (5), a motor body (1) is fixedly installed on the left side of the motor right side plate (6), radiating fins (7) arranged in parallel to the direction of a motor rotor (3) are uniformly and fixedly installed on the peripheral side of the motor body (1), an input terminal frame (8) is arranged on the motor body (1), a frequency converter (2) is fixedly installed in the input terminal frame through a dismounting and installing structure, the dismounting and installing structure comprises an installing block (9) and a fixing column (10) fixedly installed in the input terminal frame (8), the fixing column (10) is installed at the top end of the installing block (9), a supporting spring (11) is sleeved on the outer side of the fixing column (10), and the bottom end of the supporting spring (11) is fixedly connected with the installing block (9); the dismounting and mounting structure further comprises a fixing sleeve (12) arranged at the bottom of the front side surface and the rear side surface of the frequency converter (2), guide blocks (13) are fixedly mounted on the left side and the right side of the fixing sleeve (12), a spring groove (14) is formed in each guide block (13), and a positioning pin (15) penetrates through each guide block (13) and extends into an inner cavity of the fixing sleeve (12); guide spring (16) is established to locating pin (15) outside cover, one side conflict spring groove (14) lateral wall of fixed sleeve (12) is kept away from in guide spring (16), one side fixed connection locating pin (15) that guide spring (16) are close to fixed sleeve (12).
2. The variable frequency integrated three-phase asynchronous motor according to claim 1, characterized in that: the fixed columns (10) and the fixed sleeves (12) are four in number, the fixed columns (10) are right opposite to the fixed sleeves (12), the fixed columns (10) comprise supporting sections at the bottom and guiding sections at the top, supporting springs (11) are sleeved on the outer sides of the supporting sections, upper convex fixed ball blocks (17) are fixedly mounted at the top ends of the guiding sections, lower convex movable ball blocks (18) are slidably sleeved on the guiding sections, gaps are formed between the upper convex fixed ball blocks (17) and the lower convex movable ball blocks (18), and the gaps are larger than the diameters of the positioning pins (15).
3. The variable frequency integrated three-phase asynchronous motor according to claim 2, characterized in that: the top of locating pin (15) is most advanced setting, the tip upper surface of locating pin (15) is the plane, and the lower surface is the arcwall face.
4. The variable frequency integrated three-phase asynchronous motor according to claim 1, characterized in that: the motor cooling device further comprises an air guide sleeve (19) fixedly connected to the left side of the right side plate (6) of the motor, a certain distance is reserved between the inner wall of the air guide sleeve (19) and the top ends of the radiating fins (7), the air guide sleeve (19) covers the motor body (1), and an air guide channel is formed between each two adjacent radiating fins (7) and the inner wall of the air guide sleeve (19).
5. The variable frequency integrated three-phase asynchronous motor according to claim 4, wherein: the motor right side board (6) are including grid (20) that circumference was arranged, the thickness that grid (20) are close to motor body (1) side is the same with the thickness of fin (7), grid (20) thickness reduces to keeping away from motor body (1) side direction gradually, and the space that constitutes between two adjacent grids (20) is just right the wind-guiding passageway.
6. The variable frequency integrated three-phase asynchronous motor according to claim 1, characterized in that: converter (2) is including setting up at its positive control panel (21) and adjusting knob (22) of setting on control panel (21), converter (2) leading flank fixed mounting has and deposits line box (23) and output binding post (24), the upper end of depositing line box (23) sets up the wire export, the lower extreme of depositing line box (23) sets up the wire entry, it has spool (25) to deposit line box (23) internal fixed mounting, it installs a plurality of wire winding cylinder (26) to rotate on spool (25), fixed connection between a plurality of wire winding cylinder (26), wire winding cylinder (26) with set up torsional spring (27) between spool (25), the one end fixed connection spool of torsional spring (27), the other end fixed connection wire winding cylinder (26) of torsional spring (27).
7. The variable frequency integrated three-phase asynchronous motor according to claim 4, wherein: the air guide sleeve is characterized in that a motor left side plate (28) is fixedly mounted at the left end of the motor body (1), the structure of the motor left side plate (28) is the same as that of the motor right side plate (6), and the air guide sleeve (19) is fixedly connected with the motor left side plate (28).
8. The variable frequency integrated three-phase asynchronous motor according to claim 1, characterized in that: the motor cooling device further comprises a cover body (29) covering the outer side of the cooling fan (4), the cover body (29) is fixedly connected with the right motor side plate (6) through a bolt, and a filter screen (30) is arranged at the position, right opposite to the cooling fan (4), of the cover body (29).
9. The variable frequency integrated three-phase asynchronous motor according to claim 4, wherein: the motor cooling device further comprises a cooling circulating water pipe (31) arranged on the outer side of the air guide sleeve (19) in a winding mode, and the cooling circulating water pipe (31), a water pump (32) and a cooling water tank (33) form a circulating cooling structure.
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| CN202210252360.5A CN114679015B (en) | 2022-03-15 | 2022-03-15 | Frequency conversion integrated three-phase asynchronous motor |
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| CN114679015B true CN114679015B (en) | 2022-12-16 |
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| CN211351958U (en) * | 2019-12-13 | 2020-08-25 | 厦门钨业股份有限公司 | Frequency conversion integrated motor |
| CN212435503U (en) * | 2020-07-31 | 2021-01-29 | 荣成市亿能电机有限公司 | High-efficiency three-phase asynchronous motor |
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| CN208656583U (en) * | 2018-08-08 | 2019-03-26 | 东莞群力电机有限公司 | A kind of variable-frequency motor |
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| CN114679015A (en) | 2022-06-28 |
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Denomination of invention: A variable frequency integrated three-phase asynchronous motor Effective date of registration: 20230222 Granted publication date: 20221216 Pledgee: Zhejiang Xiaoshan rural commercial bank Limited by Share Ltd. Jingjiang branch Pledgor: HANGZHOU JIE DRIVE TECHNOLOGY Co.,Ltd. Registration number: Y2023980033135 |
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