A frequency converter permanent magnet synchronous motor integrated device

Abstract

The application relates to the technical field of frequency converters, in particular to a frequency converter permanent magnet synchronous motor integrated equipment which comprises an equipment shell and a frequency converter, the top of the equipment shell is fixedly connected with a sliding chamber, the top of the sliding chamber is rotationally connected with a cover plate, the frequency converter is slidingly connected at the top of the equipment shell, a plurality of electric sliding rails are fixedly connected to the inner walls of the two sides of the equipment shell, one side of the equipment shell is provided with an end cover, and the outer wall of one side of the equipment shell is sleeved with the outer wall of the end cover. By pulling the bent rod, the displacement of the fan and the frequency converter driven by the rotating disc is realized, so that the completeness of the fan air guide when the motor rotation condition is checked is realized, the safety of the workers can be protected, the fan and the frequency converter can be fixed by pulling the bent rod to a certain position, the equipment is convenient to disassemble, time and labor are saved.

Description

TECHNICAL FIELD

[0001] The application relates to a frequency converter, in particular to a frequency converter permanent magnet synchronous motor integrated equipment. BACKGROUND

[0002] The permanent magnet synchronous motor is a synchronous motor using a permanent magnet to generate a magnetic field, the rotating speed of the rotor is consistent with the current frequency of the stator winding, with the rapid development of electronic technology, the frequency converter technology is becoming mature, the volume is getting smaller and smaller, the power range is continuously expanding, and the function is getting more and more, which provides necessary material basis for large-scale application of the frequency conversion speed permanent magnet synchronous motor.

[0003] Through retrieval, the Chinese patent with the publication number CN112234765B discloses a frequency converter permanent magnet synchronous motor integrated equipment, which comprises a frequency converter permanent magnet synchronous motor control and heat dissipation device, a permanent magnet synchronous motor device and a frequency converter permanent magnet synchronous motor bearing protection device; the frequency converter permanent magnet synchronous motor control and heat dissipation device is installed at the rear end of the permanent magnet synchronous motor device through bolts; the frequency converter permanent magnet synchronous motor bearing protection device is installed at the front end of the permanent magnet synchronous motor device through bolts. Further, the application has the advantages of compact structure and good heat dissipation performance; in addition, the frequency converter permanent magnet synchronous motor bearing protection device effectively prevents dust from entering the bearing, reduces the wear of the bearing and prolongs the service life of the bearing.

[0004] However, a large number of screws and nuts are needed for the frequency converter permanent magnet synchronous motor integrated machine, and the disassembly and assembly are relatively troublesome, time-consuming and laborious. SUMMARY

[0005] The application aims to provide a frequency converter permanent magnet synchronous motor integrated equipment to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the application provides a frequency converter permanent magnet synchronous motor integrated equipment, which comprises an equipment shell and a frequency converter, the top of the equipment shell is fixedly connected with a sliding chamber, the top of the sliding chamber is rotationally connected with a cover plate, the frequency converter is slidingly connected to the top of the equipment shell, the bottom of the equipment shell is fixedly connected with a base, the inner walls of the front and rear sides of the equipment shell are fixedly connected with a plurality of electric sliding rails, one side of the equipment shell is provided with an end cover, the outer wall of one side of the equipment shell is sleeved with the outer wall of the end cover, one side of the end cover is detachably connected with a motor base, the motor base is detachably connected with a fan cover away from the end cover, and a disassembly and assembly component is arranged between the outer wall of the motor base and the inner wall of the equipment shell.

[0007] As the preferred of the present application, the bottom of the motor base is fixedly connected with a support column, the motor base is fixedly connected with the top of the base through the support column, strip-shaped holes are formed in the front and rear outer walls of the motor base, the motor base is fixedly connected with a raised plate on the top of the side away from the end cover, and the frequency converter is slidingly connected with the top of the raised plate.

[0008] As the preferred of the present application, the raised plate is provided with a first ventilation opening at the middle end of the motor base, the raised plate is provided with a second ventilation opening at the end away from the first ventilation opening, and the first ventilation opening and the second ventilation opening are communicated with the inner wall of the motor base.

[0009] As the preferred of the present application, a rotating shaft is rotatably connected with the inner side of the center of the fan cover, a fixed ring is slidingly connected with the outer wall of the rotating shaft, a fan is rotatably connected with one side of the fixed ring, and the fan is slidingly connected with the outer wall of the rotating shaft.

[0010] As the preferred of the present application, the inner wall of the motor base is fixedly connected with a partition plate, the partition plate is located on the inner wall of the side of the motor base close to the fan cover, and a circular hole with a diameter matching the size of the outer ring of the fan is formed in the outer wall of the partition plate.

[0011] As the preferred of the present application, a motor stator and a motor rotor are installed in the inside of the side close to the end cover of the motor base, and the rotating shaft is fixedly connected with the motor rotor at the end away from the fan cover.

[0012] As the preferred of the present application, the dismounting assembly comprises a sliding plate, the sliding plate is slidingly connected with the electric sliding rail, the sliding plate is fixedly connected with a triangular plate on the side away from the electric sliding rail, and the sliding plate is located at the lower end of the triangular plate.

[0013] As the preferred of the present application, the upper end of the triangular plate is rotatably connected with a first connecting rod, the middle end of the first connecting rod is fixedly connected with a raised bent rod, the outer walls of the two ends of the first connecting rod are rotatably connected with rotating discs, penetrating rods are fixedly connected with the circumferential positions of the two rotating discs, the penetrating rods penetrate the rotating discs, the outer walls of the penetrating rods are rotatably connected with telescopic connecting rods, and the telescopic connecting rods are rotatably connected with the outer wall of the frequency converter at the end away from the penetrating rods.

[0014] As the preferred of the present application, the rotating disc is provided with a ratchet gear groove at the position connected with the first connecting rod, the outer wall of the first connecting rod is fixedly connected with telescopic buckle blocks at the position connected with the rotating disc, and the sizes of the buckle blocks are matched with the ratchet gear groove.

[0015] As the preferred of the present application, the two ends of the through rod are rotatably connected with the second connecting rod, the second connecting rod is located outside the two side rotary discs, the second connecting rod is rotatably connected with the sliding rod at the end away from the through rod, the sliding rod is fixedly connected with the outer wall of the fixed ring at the end away from the second connecting rod, and the sliding rod is slidably connected in the strip-shaped hole.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] 1、The present application realizes the displacement of the fan and the frequency converter driven by the rotary disc by pulling the bent rod, so as to realize the integrity of the fan guide when checking the rotation of the motor, and to protect the safety of the workers.

[0018] 2、The present application drives the through rod to rotate from the right side of the rotary disc to the left side, and then slides to the left under the drive of the electric sliding rail and contacts the pressing sensor, then the pressing sensor locks the buckle block to prevent the first connecting rod and the rotary disc from rotating greatly, and cannot rebound under the limitation of the buckle plate, at this time, the fan and the frequency converter will be locked to the fixed position after moving.

[0019] 3、The present application disassembles the fan on the rotary rod together with the fixed ring to the right side after disassembling the fan cover, then disassembles the sliding chamber, and pushes the equipment shell to the direction of the fan cover, disassembles the equipment shell, can disassemble the frequency converter together with the equipment shell and the sliding chamber, convenient to disassemble and save time and effort. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application;

[0021] Figure 2 It is a schematic diagram of the longitudinal section structure of the present application;

[0022] Figure 3 It is a schematic diagram of the transverse section structure of the present application;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the present application in the open state of the cover plate;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the equipment shell inside the present application;

[0025] Figure 6 It is a schematic diagram of the structure of the present application in the expanded state of the internal parts;

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the disassembling assembly of the present application;

[0027] In the figure: 1, equipment shell; 11, sliding chamber; 111, cover plate; 12, base; 13, electric sliding rail; 2, frequency converter; 3, end cover; 31, support column; 32, motor base; 321, strip-shaped hole; 322, protruding plate; 33, fan cover; 331, rotating rod; 332, fixing ring; 333, fan; 34, partition plate; 341, motor stator; 342, motor rotor; 35, No. 1 ventilation opening; 351, No. 2 ventilation opening; 4, dismounting assembly; 41, sliding plate; 42, triangular plate; 421, No. 1 connecting rod; 422, bent rod; 43, rotating disc; 431, through rod; 432, telescopic connecting rod; 44, No. 2 connecting rod; 441, sliding rod. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0030] Please refer to Figures 1-7 As shown in the figure, a frequency converter permanent magnet synchronous motor integrated equipment includes an equipment shell 1 and a frequency converter 2, the top of the equipment shell 1 is fixedly connected with a sliding chamber 11, the top of the sliding chamber 11 is rotatably connected with a cover plate 111, the frequency converter 2 is slidably connected at the top of the equipment shell 1, the bottom of the equipment shell 1 is fixedly connected with a base 12, the inner walls of the front and rear sides of the equipment shell 1 are fixedly connected with a plurality of electric sliding rails 13, one side of the equipment shell 1 is provided with an end cover 3, the outer wall of one side of the equipment shell 1 is sleeved on the outer wall of the end cover 3, one side of the end cover 3 is detachably connected with a motor base 32, the motor base 32 is detachably connected with a fan cover 33 on the side away from the end cover 3, and a dismounting assembly 4 is arranged between the outer wall of the motor base 32 and the inner wall of the equipment shell 1;

[0031] The inner wall of the sliding chamber 11 is provided with a pressing sensor and a buckle plate. When the bending rod 422 is turned to the position of the pressing sensor, the buckle plate is used to fix the bending rod 422 on the pressing sensor. When the bending rod 422 presses and contacts the pressing sensor, the buckle plate limits the bending rod 422.

[0032] As shown in Figures 2-3 The bottom of the motor base 32 is fixedly connected with a support column 31. The motor base 32 is fixedly connected to the top of the base 12 through the support column 31. The front and rear outer walls of the motor base 32 are provided with strip-shaped holes 321. The top of the side away from the end cover 3 of the motor base 32 is fixedly connected with a protruding plate 322. The frequency converter 2 is slidingly connected to the top of the protruding plate 322. The protruding plate 322 is provided with a first air vent 35 at the middle end position of the motor base 32. The protruding plate 322 is provided with a second air vent 351 at the end away from the first air vent 35. The first air vent 35 and the second air vent 351 are communicated with the inner wall of the motor base 32. The inside of the fan cover 33 is rotatably connected with a rotating rod 331 at the central position. The outer wall of the rotating rod 331 is slidingly connected with a fixing ring 332. The fixing ring 332 is rotatably connected with a fan 333 at one side. The fan 333 is slidingly connected to the outer wall of the rotating rod 331. The inner wall of the motor base 32 is fixedly connected with a partition plate 34. The partition plate 34 is located at the inner wall of the side of the motor base 32 close to the fan cover 33. The outer wall of the partition plate 34 is provided with a circular hole with a diameter matching the size of the outer circle of the fan 333. The motor base 32 is internally installed with a motor stator 341 and a motor rotor 342 at the side close to the end cover 3. The rotating rod 331 is fixedly connected with the motor rotor 342 at the end away from the fan cover 33.

[0033] As shown in Figures 5-7As shown, the dismounting assembly 4 comprises a sliding plate 41 which is slidingly connected to the electric sliding rail 13, the sliding plate 41 is fixedly connected with a triangular plate 42 on the side away from the electric sliding rail 13, the sliding plate 41 is located at the lower end of the triangular plate 42, the upper end of the triangular plate 42 is rotatably connected with a first connecting rod 421, the middle end of the first connecting rod 421 is fixedly connected with a convex bent rod 422, the outer wall of both ends of the first connecting rod 421 is rotatably connected with a rotating disc 43, the circumferential position of both sides of the rotating disc 43 is fixedly connected with a through rod 431 which penetrates through the rotating disc 43, the outer wall of the through rod 431 is rotatably connected with an extension connecting rod 432, the extension connecting rod 432 is rotatably connected to the outer wall of the frequency converter 2 at the end away from the through rod 431, the rotating disc 43 is provided with a ratchet gear slot at the position connected with the first connecting rod 421, the outer wall of the first connecting rod 421 is fixedly connected with a retractable buckle block at the position connected with the rotating disc 43, the size of the buckle block is matched with the ratchet gear slot, both ends of the through rod 431 are rotatably connected with a second connecting rod 44, the second connecting rod 44 is located outside both sides of the rotating disc 43, the second connecting rod 44 is rotatably connected with a sliding rod 441 at the end away from the through rod 431, the sliding rod 441 is fixedly connected to the outer wall of the fixed ring 332 at the end away from the second connecting rod 44, and the sliding rod 441 is slidingly connected in the strip-shaped hole 321.

[0034] Among them, the size of the buckle block is matched with the ratchet gear slot, which is used to guide the rotating direction of the rotating disc 43.

[0035] Therefore, as shown, Figures 2-6 When the motor is ready to start, it is ensured that the frequency converter 2 is located at the top of the protruding plate 322 at the right end of the motor base 32, and the cover plate 111 at the top of the sliding chamber 11 on the side of the frequency converter 2 is in a closed state, during the conventional working process of the permanent magnet synchronous motor, the fan 333 is located at the right side of the partition plate 34, and the fan 333 always makes the air flowing into the first air vent 35 and the second air vent 351 pass through the rotation of the fan 333 to be introduced to the direction of the fan housing 33 for exhaust, thereby cooling the inside of the motor base 32;

[0036] As shown, Figures 4-6As shown, when the permanent magnet synchronous motor needs to be overhauled, the cover plate 111 is opened, and then the bent rod 422 is pushed to the right side until the bent rod 422 is rotated to the top position of the penetrating rod 431. During the rotation of the bent rod 422 to the right side, the ratchet gear groove is not affected by the buckle block, that is, the bent rod 422 will not drive the rotating disc 43 to rotate during the rotation of the bent rod 422 to the right side. Again, rotate the bent rod 422 to the left side, during which the ratchet gear groove will be blocked by the buckle block, and the bent rod 422 will drive the first connecting rod 421 and the rotating disc 43 to rotate to the left side together. At the same time, the telescopic connecting rod 432 will rotate along the periphery of the rotating disc 43 during the rotation of the rotating disc 43, and the frequency converter 2 will slide into the sliding chamber 11 by using the telescopic connecting rod 432, so that the frequency converter 2 slides to the left side from the original position by half. Similarly, during the rotation of the penetrating rod 431 along the periphery of the rotating disc 43, the second connecting rod 44 will slide to the left side by a certain distance, and the second connecting rod 44 will drive the sliding rod 441 and the fixed ring 332 to move on the rotating rod 331 to the left side and gradually approach the partition plate 34. Then, under the drive of the electric sliding rail 13, the sliding plate 41, the triangular plate 42 and the rotating disc 43 slide to the left side together. When sliding to the leftmost position of the electric sliding rail 13, the frequency converter 2 is completely inside the sliding chamber 11 at this time, and the fan 333 moves to the left side of the partition plate 34. At this time, the fan cover 33 is removed and the permanent magnet synchronous motor is tested for rotation. The fan 333 located on the left side of the partition plate 34 will not hurt the staff. Then move the frequency converter 2 to the specified position to detect whether the cooling function of the fan 333 is realized through the first air vent 35 and the second air vent 351;

[0037] It should be noted that, as Figure 5 shown, after pulling the bent rod 422 to drive the penetrating rod 431 to rotate from the right side of the rotating disc 43 to the left side, then under the drive of the electric sliding rail 13, the press sensor is contacted and pressed, and then the buckle block is locked to prevent the first connecting rod 421 and the rotating disc 43 from rotating greatly, and the buckle plate cannot be rebounded under the limiting action of the buckle plate. At this time, the fan 333 and the frequency converter 2 will be locked to the fixed position after moving;

[0038] Similarly, when the permanent magnet synchronous motor needs to be disassembled for maintenance, the fan cover 33 is first removed, the fan 333 on the rotating rod 331 is removed together with the fixed ring 332, then the sliding chamber 11 is removed, and the equipment shell 1 is pushed to the direction of the fan cover 33. The equipment shell 1 is disassembled, the frequency converter 2 can be disassembled together with the equipment shell 1 and the sliding chamber 11, which is convenient and time-saving and labor-saving.

[0039] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A variable frequency drive permanent magnet synchronous motor integrated package comprising a package housing (1) and a variable frequency drive (2), characterized in that: The top of the equipment shell (1) is fixedly connected with a sliding chamber (11), the top of the sliding chamber (11) is rotatably connected with a cover plate (111), the frequency converter (2) is slidably connected at the top of the equipment shell (1), the bottom of the equipment shell (1) is fixedly connected with a base (12), the inner walls of the front and rear sides of the equipment shell (1) are fixedly connected with a plurality of electric sliding rails (13), one side of the equipment shell (1) is provided with an end cover (3), and the outer wall of the equipment shell (1) is sleeved on the outer wall of the end cover (3); One side of the end cover (3) is detachably connected with a motor base (32), the motor base (32) is detachably connected with a fan cover (33) away from the end cover (3), and a dismounting assembly (4) is arranged between the outer wall of the motor base (32) and the inner wall of the equipment shell (1); The dismounting assembly (4) comprises a sliding plate (41), the sliding plate (41) is slidably connected on the electric sliding rail (13), the sliding plate (41) is fixedly connected with a triangular plate (42) away from the electric sliding rail (13), and the sliding plate (41) is located at the lower end of the triangular plate (42); The upper end of the triangular plate (42) is rotatably connected with a first connecting rod (421), the middle end of the first connecting rod (421) is fixedly connected with a protruding bent rod (422), the outer walls of the two ends of the first connecting rod (421) are rotatably connected with a rotating disc (43), the peripheral positions of the two rotating discs (43) are fixedly connected with penetrating rods (431), the penetrating rods (431) penetrate the rotating discs (43), the outer wall of the penetrating rod (431) is rotatably connected with an extension connecting rod (432), and the extension connecting rod (432) is rotatably connected with the outer wall of the frequency converter (2) away from the penetrating rod (431); The front and rear outer walls of the motor base (32) are provided with strip-shaped holes (321); The inner side of the fan cover (33) is rotatably connected with a rotating rod (331), the outer wall of the rotating rod (331) is slidably connected with a fixed ring (332), one side of the fixed ring (332) is rotatably connected with a fan (333), and the fan (333) is slidably connected with the outer wall of the rotating rod (331); The two ends of the penetrating rod (431) are rotatably connected with a second connecting rod (44), the second connecting rod (44) is located outside the two rotating discs (43), and the second connecting rod (44) is rotatably connected with a sliding rod (441) away from the penetrating rod (431); the outer wall of the sliding rod (441) is fixedly connected with the outer wall of the fixed ring (332) away from the second connecting rod (44), and the sliding rod (441) is slidably connected in the strip-shaped hole (321).

2. The inverter permanent magnet synchronous motor integrated apparatus according to claim 1, characterized by: The bottom of the motor base (32) is fixedly connected with a supporting column (31), the motor base (32) is fixedly connected to the top of the base (12) through the supporting column (31), the top of the motor base (32) away from the end cover (3) is fixedly connected with a protruding plate (322), and the frequency converter (2) is slidably connected to the top of the protruding plate (322).

3. The inverter permanent magnet synchronous motor integrated apparatus according to claim 2, characterized by: The raised plate (322) is provided with a first ventilation opening (35) at the middle end position of the motor base (32), and is provided with a second ventilation opening (351) at the end away from the first ventilation opening (35), and the first ventilation opening (35) and the second ventilation opening (351) are communicated with the inner wall of the motor base (32).

4. The inverter permanent magnet synchronous motor integrated apparatus according to claim 1, characterized by: The inner wall of the motor base (32) is fixedly connected with a partition plate (34), the partition plate (34) is located on the inner wall of the side of the motor base (32) close to the fan cover (33), and the outer wall of the partition plate (34) is provided with a circular hole with a diameter matching the size of the outer ring of the fan (333).

5. The inverter permanent magnet synchronous motor integrated apparatus according to claim 4, characterized by: The motor base (32) is internally provided with a motor stator (341) and a motor rotor (342) on the side close to the end cover (3), and the rotating shaft (331) is fixedly connected with the motor rotor (342) at the end away from the fan cover (33).

6. The inverter permanent magnet synchronous motor integrated apparatus according to claim 5, characterized by: The rotating disc (43) is provided with a ratchet gear groove at the position connected with the first connecting rod (421), the outer wall of the first connecting rod (421) is fixedly connected with a telescopic buckle block at the position connected with the rotating disc (43), and the size of the buckle block is matched with the size of the ratchet gear groove.

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