Frequency conversion permanent magnet all-in-one machine

Abstract

The invention relates to a variable-frequency permanent magnet all-in-one machine, relates to the technical field of motors, and aims to realize efficient utilization of energy by optimizing heat dissipation and variable-frequency control, reduce the power consumption and heat dissipation burden of equipment operation and meet the requirements of energy conservation and environmental protection and the like. According to the technical scheme, the motor comprises a shell which comprises a motor base, a front end cover and a rear end cover, and a sealing plate is arranged in the middle of the rear end cover and divides the rear end cover into an area A and an area B; the movement assembly is arranged in the shell; one end, far away from the front end cover, of the rotating shaft penetrates through the rear end cover, passes through the area A, penetrates through the sealing plate and then is located in the area B; the partition plate is arranged at the first end, away from the sealing plate, of the area B; the cooling fan is positioned in the B area and is mounted on the rotating shaft; the measuring assembly is connected to the partition plate and makes contact with the cooling fan to generate a signal when the cooling fan rotates; the signal feedback assembly is arranged on the outer surface of the shell and used for displaying changes when the measuring assembly makes contact with the cooling fan.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a variable frequency permanent magnet integrated machine. Background Art

[0002] The variable frequency permanent magnet integrated machine is a new type of electrical equipment that integrates a frequency converter and a permanent magnet synchronous motor. It is designed to meet the urgent needs of modern industry for efficient and energy-saving drive systems. Traditional motor drive systems are usually composed of independent motors and frequency converters. This split design requires complex electrical connections and system debugging, while increasing the size of the equipment and the difficulty of installation. In addition, improper matching between the motor and the frequency converter may lead to reduced efficiency, insufficient control accuracy and limited operating reliability, and cannot fully meet the needs of current industrial automation and intelligent development.

[0003] Permanent magnet synchronous motors have become important equipment in the industrial field due to their high efficiency, high power density, wide speed regulation range and operational stability; however, traditional motor systems usually rely on external frequency converters to achieve variable speed control, which not only complicates the control circuit, but also increases the loss in the energy transfer process; with the advancement of technology, permanent magnet synchronous motors and frequency converters are highly integrated to form a variable frequency permanent magnet integrated machine design, which not only simplifies the system structure, but also significantly improves the overall efficiency and reliability.

[0004] The variable frequency permanent magnet integrated machine achieves efficient electrical connection and data transmission by embedding the inverter module directly into the motor structure; the integrated design avoids the impact of external wiring on system performance, and through the optimization of electromagnetic design and control algorithms, the equipment can maintain high efficiency operation in a wider range of working conditions. In addition, the inverter using digital control technology can monitor the motor operating status in real time, adjust torque output and speed control, and further improve the dynamic response capability of the system.

[0005] Heat dissipation and reliability have always been the core technical challenges faced by high-power motor equipment. Therefore, the present application provides a variable frequency permanent magnet integrated machine to solve the above problems, achieve high-efficiency heat dissipation through structural design, and check whether internal parts are loose during daily maintenance without disassembly, thereby better ensuring the long-term stable operation of the motor. Summary of the invention

[0006] In view of the above situation, the present invention provides a variable frequency permanent magnet integrated machine, which achieves efficient use of energy by optimizing heat dissipation and frequency conversion control, while reducing power consumption and heat dissipation burden of equipment operation, meeting the needs of energy conservation and environmental protection.

[0007] A variable frequency permanent magnet integrated machine, comprising:

[0008] The housing comprises a base, a front cover and a rear cover, wherein a sealing plate is provided in the middle of the rear cover to divide the rear cover into an A area and a B area;

[0009] A motion assembly is disposed in the housing;

[0010] The rotating shaft is arranged inside the moving component, and the end thereof away from the front cover passes through the rear cover, the A area and the sealing plate and is located in the B area;

[0011] A partition plate is arranged at one end of the area B away from the sealing plate;

[0012] A cooling fan, located in the B area and mounted on the rotating shaft;

[0013] A measuring component is connected to the partition plate and contacts the cooling fan to generate a signal when the cooling fan rotates;

[0014] A signal feedback component is disposed on the outer surface of the housing and is used to display changes in the signal when the measuring component contacts the cooling fan;

[0015] A variable frequency sensor is coaxially mounted on the partition and connected to the rotating shaft;

[0016] The heat dissipation shell is connected to one end of the outer shell and contains an electronic circuit board for the frequency conversion sensor.

[0017] Preferably, the motion assembly includes a rotor assembly, a stator assembly and a heat dissipation unit;

[0018] The rotor assembly is arranged on the outer surface of the rotating shaft;

[0019] The stator assembly is arranged on the outer surface of the rotor assembly;

[0020] The heat dissipation unit is arranged on both sides of the rotor assembly.

[0021] Preferably, the heat dissipation unit comprises a circular shaft plate, an aluminum leaf, a conical column and a mounting shaft;

[0022] There are two groups of circular shaft plates, which are arranged on both sides of the rotor assembly and are coaxially arranged with the rotor assembly. The two groups of circular shaft plates are connected and fixed in the middle by hexagonal bolts;

[0023] There are a plurality of aluminum leaves, conical columns and mounting shafts, which are distributed on the circular shaft plate.

[0024] Preferably, a plurality of bottom shafts are evenly distributed on one side of the circular shaft plate away from the aluminum leaf, the conical column and the mounting shaft, and a side surface of the bottom shaft is in direct contact with the rotor assembly, so as to form a gap between the circular shaft plate and the rotor assembly;

[0025] The circular axis plates are provided with the same number of mounting holes corresponding to the mounting shafts, and the mounting shafts and mounting holes of the two groups of circular axis plates are arranged opposite to each other; the mounting shafts and mounting holes correspond to the two sides of the hexagonal bolts penetrating the two circular axis plates.

[0026] Preferably, the cooling fan is provided with five blades, each of the blades is provided with an opening with a depth of five millimeters, an elastic sheet adapted to the depth of the opening is provided in the opening, and a moving contact is provided on the elastic sheet.

[0027] Preferably, the measuring assembly comprises a ring shaft, a convex shaft, a static contact and a contact sheet;

[0028] The ring shaft connection is arranged in the partition;

[0029] There are five convex shafts, which are distributed on the ring shaft;

[0030] The static contact is arranged on the side of the convex shaft away from the ring shaft;

[0031] There are five contact sheets, which are respectively connected to five corresponding static contacts.

[0032] Preferably, a starting point is set on the ring axis, and the ring axis is divided into five equal short axes from the starting point, and one short axis is divided into four equal small axes;

[0033] The first position of the small axis clockwise from the starting point is the first convex axis setting point;

[0034] The positions of the two small axes counterclockwise from the starting point are the second cam setting points;

[0035] The position of the five small axes counterclockwise from the starting point is the third convex axis setting point;

[0036] The positions of the eight small axes counterclockwise from the starting point are the fourth cam setting points;

[0037] The position of the small axis eleven times counterclockwise from the starting point is the fifth cam setting point;

[0038] The first convex shaft and the fifth convex shaft are in contact with the moving contact through synchronous rotation; the remaining second convex shaft, third convex shaft and fourth convex shaft are in contact with the moving contact individually.

[0039] Preferably, the signal feedback component includes a display, a contact clip and a signal light;

[0040] The display device is installed on the housing;

[0041] The contact clip is movably arranged on the display device and contacts the contact piece to be energized;

[0042] The signal lights have the same number as the static contacts and are arranged on the display device to display the state of the static contacts and the moving contacts after being energized.

[0043] Preferably, the frequency conversion sensor is a PG sensor.

[0044] Preferably, the outer surface of the heat dissipation shell is divided into a C zone, a D zone and an E zone;

[0045] The C zone is provided with a plurality of linear heat dissipation blades on the middle surface, and the middle of the C zone is recessed toward one side of the housing to form a trapezoidal groove, and a driving fan is provided in the trapezoidal groove;

[0046] The D area and the E area are respectively arranged on both sides of the C area;

[0047] The D area is provided with a plurality of linear heat dissipation blades, which are in a cross shape with the heat dissipation blades in the C area;

[0048] The E area is used for installing a waterproof joint.

[0049] The above technical solution has the following beneficial effects:

[0050] (1) The heat dissipation unit, cooling fan, external heat dissipation shell and multiple components work together to significantly improve the heat dissipation efficiency, reduce the risk of performance degradation caused by overheating, and ensure stable operation of the equipment;

[0051] (2) Using variable frequency sensors to replace traditional encoders, in conjunction with electronic circuit boards, can detect the rotor position and speed in real time, achieve precise control of motor speed and torque, and improve operating efficiency and responsiveness. Secondly, variable frequency sensors do not require physical contact, which simplifies the structure, reduces external sensor dependence and wiring complexity, and reduces costs. The signal feedback system uses visual signal lights and non-contact detection methods to facilitate quick fault diagnosis and daily maintenance.

[0052] (3) By optimizing heat dissipation and frequency conversion control, efficient energy utilization is achieved, while the power consumption and heat dissipation burden of equipment operation are reduced, meeting the needs of energy conservation and environmental protection.

[0053] (4) Through the cooperation between the cooling fan, the measuring component and the signal feedback component, the internal status can be observed on a daily basis without disassembling the parts. When problems such as internal tilt or loose parts occur, the system can react and timely judge and prompt maintenance personnel to repair the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0055] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0056] Figure 3 It is a schematic diagram of the structure of the heat dissipation unit of the present invention;

[0057] Figure 4 It is a schematic diagram of the structure of the stator assembly of the present invention;

[0058] Figure 5 This is a schematic diagram of the heat dissipation shell structure of the present invention;

[0059] Figure 6 It is a schematic diagram of the trapezoidal groove structure of the present invention;

[0060] Figure 7 This is a schematic diagram of the cooling fan structure of the present invention;

[0061] Figure 8 This is a schematic diagram of the structure of the measuring component of the present invention;

[0062] Fig. 9 This is a schematic diagram of the small shaft structure of the present invention;

[0063] Fig.10 It is a schematic diagram of the short axis structure of the present invention;

[0064] Fig.11 For the present invention Figure 2 Enlarged schematic diagram at point A in the middle.

[0065] In the figure: 1, housing; 11, base; 12, front cover; 13, rear cover; 131, area A; 132, area B; 14, cover plate; 2, motion assembly; 21, rotor assembly; 22, stator assembly; 23, heat dissipation unit; 231, circular shaft plate; 2311, bottom shaft; 2312, mounting hole; 232, aluminum leaf; 233, tapered column; 234, mounting shaft; 3, rotating shaft; 4, partition; 5, cooling fan; 51, fan blade; 52, opening; 53. Elastic sheet; 54. Moving contact; 6. Measuring component; 601. Starting point; 61. Ring shaft; 611. Short shaft; 612. Small shaft; 62. Convex shaft; 63. Static contact; 64. Contact sheet; 7. Signal feedback component; 71. Display; 72. Contact clip; 73. Signal light; 8. Frequency conversion sensor; 9. Heat sink; 91. Area C; 92. Area D; 93. Area E; 94. Trapezoidal groove; 95. Driving fan; 10. Electronic circuit board. DETAILED DESCRIPTION

[0066] The above and other technical contents, features and effects of the present invention are described in detail below with reference to the attached Figures 1 to 11 It can be clearly presented in the detailed description of the embodiments that the structural contents mentioned in the following embodiments are all referenced to the drawings in the specification.

[0067] For reference Figure 1-Figure 2The present application is mainly composed of a shell 1, a moving component 2 arranged in the shell 1, a rotating shaft 3 inserted in the moving component 2, a partition 4 arranged on one side of the shell 1, a cooling fan 5 arranged on the rotating shaft 3, a measuring component 6 arranged on the partition 4, a signal feedback component 7 arranged on the shell 1, a frequency conversion sensor 8 arranged on the partition 4, a heat dissipation shell 9 arranged on one side of the shell 1 and an electronic circuit board 10 located in the heat dissipation shell 9, so that the frequency converter and the permanent magnet motor can be combined to form an integrated machine, and after the combination, advantages are provided in internal heat dissipation and internal detection direction work.

[0068] For reference Figure 1-Figure 2 The housing 1 is divided into three parts, and the three parts include a base 11, a front cover 12 and a rear cover 13. The rear cover 13 is further configured with a sealing plate 14 in the middle thereof, and the rear cover 13 is divided into an A zone 131 and a B zone 132 by the sealing plate 14.

[0069] For reference Figure 2-Figure 3 The motion component 2 is arranged to work in the housing 1, and includes a rotor component 21, a stator component 22 and a heat dissipation unit 23. The rotor component 21 is arranged on the outer surface of the rotating shaft 3, and the stator component 22 is arranged on the outer surface of the rotor component 21. The coordinated use of the rotor component 21 and the stator component 22 and the rotating shaft 3 inserted in the stator component 22 are all common and mature technologies in the technical field, and this application will not go into details.

[0070] The heat dissipation units 23 are disposed on both sides of the rotor assembly 21 . The heat dissipation units 23 can further help dissipate heat for the rotor assembly 21 , thereby enabling the rotor assembly 21 to continue to work stably.

[0071] Specifically, the heat dissipation unit 23 includes a circular shaft plate 231, an aluminum leaf 232, a conical column 233 and a mounting shaft 234;

[0072] There are two groups of circular shaft plates 231, which are arranged on both sides of the rotor assembly 21 and are coaxially arranged with the rotor assembly 21. The two groups of circular shaft plates 231 are connected and fixed in the middle by hexagonal bolts; and at the same time, in order to reduce the heat conduction of the rotor assembly 21 to the circular shaft plate 231, a plurality of bottom shafts 2311 are evenly distributed on the side of the circular shaft plate 231 away from the aluminum leaf 232, the conical column 233 and the mounting shaft 234, and one side of the bottom shaft 2311 is in direct contact with the rotor assembly 21; the plurality of bottom shafts 2311 are directly connected to the surface of the rotor assembly 21, and the plurality of bottom shafts 2311 are not connected and have a certain interval, thereby prompting a gap to be formed between the circular shaft plate 231 and the rotor assembly 21, thereby reducing the heat conduction of the rotor assembly 21 toward the circular shaft plate 231, and the interval can form an effect of increasing air circulation and heat dissipation.

[0073] Two groups of circular shaft plates 231 are provided on both sides of the rotor assembly 21 for heat dissipation. At the same time, the circular shaft plates 231 are stably connected and fixed on both sides of the rotor assembly 21 through or hexagonal bolts. In order to facilitate the installation of the bolts, a mounting shaft 234 is further provided. The mounting shaft 234 is provided with multiple, corresponding to multiple hexagonal bolts for connection; at the same time, in order to facilitate the connection between the two groups of circular shaft plates 231 using the mounting shaft 234, the same number of mounting holes 2312 are further provided on the circular shaft plates 231 corresponding to the mounting shaft 234. The mounting shafts 231 on the two groups of circular shaft plates 231 are 2 34 is arranged opposite to the mounting hole 2312; its mounting shaft 234 and the mounting hole 2312 correspond to the two sides of the hexagonal bolts penetrating the two circular shaft plates 231; thus, after the hexagonal bolts are passed through the mounting holes 2312 on the first set of circular shaft plates 231, they are connected with the mounting shaft 234 on the second set of circular shaft plates 231, thereby not only facilitating the connection of the bolts, but also wrapping the passed bolts through the setting of the protrusion of the mounting shaft 234, which not only reduces the possibility of deformation of the hexagonal bolts, but also reduces the possibility of the hexagonal bolts being exposed to the outside being damaged and the friction loss to the internal structure.

[0074] There are multiple aluminum blades 232 and conical columns 233, all distributed on the circular axis plate 231; the aluminum blades 232 are the main structure for fan heat dissipation, and heat dissipation is achieved through the airflow formed by the rotation of the aluminum blades 232, and the conical columns 233 are used to change the airflow formed by the aluminum blades. The shape design of the conical structure of the conical column 233 can optimize the air flow path, reduce eddy currents and energy losses, and improve heat dissipation efficiency. At the same time, when the fan blades rotate, the columnar structure can provide additional support to avoid deformation or loosening due to long-term use.

[0075] In view of the above, the heat dissipation effect based on the stator assembly 22 and the rotor assembly 21 is achieved inside the device. However, in further mechanical improvements, it is found that although the heat dissipation effect is effective, insufficient heat dissipation may still occur. Therefore, a cooling fan 5 is installed in area B 132 of the rear end cover 13 to further increase the heat dissipation effect.

[0076] For reference Figure 5-Figure 6 A heat dissipation shell 9 is connected to the rear end cover 13 of the outer shell 1 to achieve the heat dissipation effect again. In order to prevent the hot air in the outer shell 1 from entering the heat dissipation shell 9 and affecting the electronic circuit board 10 arranged in the heat dissipation shell 9, a partition 4 is arranged at the end of the B area 132 away from the sealing plate 14, that is, at the middle of the connection between the heat dissipation shell 9 and the outer shell 1; through the arrangement of the partition 4, the situation of the hot air in the outer shell 1 entering the heat dissipation shell 9 can be reduced, and the heat in the heat dissipation shell 9 entering the outer shell 1 is also reduced, thereby reducing the burden of heat dissipation inside the outer shell 1.

[0077] For reference Figure 5-Figure 6The outer surface of the heat dissipation shell 9 is divided into a C zone 91, a D zone 92 and an E zone 93; the C zone 91 is provided with a plurality of straight heat dissipation blades on the middle surface, and the middle of the C zone 91 is recessed toward one side of the shell 1 to form a trapezoidal groove 94, and a driving fan 95 is provided in the trapezoidal groove 94, and the heat dissipation effect can be further increased by driving the fan 95; the D zone 92 and the E zone 93 are respectively provided on both sides of the C zone 91; the D zone 92 is provided with a plurality of straight heat dissipation blades, and they are crossed with the heat dissipation blades of the C zone 91, and the heat dissipation fan can better exert the heat dissipation effect through the linkage cooperation between the heat dissipation blades at the two places and the driving fan 95; the E zone 93 is used to install a waterproof joint.

[0078] In view of the above, through the linkage and cooperation between multiple parts, the heat dissipation effect of multiple parts can be achieved by mutual cooperation, which will significantly improve the performance, reliability and life of the device, while reducing operating costs and failure risks.

[0079] For reference Figure 2 In order to achieve the frequency conversion effect, most of the existing ones use encoders to feedback the position and speed information of the rotor in real time. In this application, the encoder is replaced with a frequency conversion sensor 8; and the frequency conversion sensor 8 is coaxially arranged on the partition 4, and the frequency conversion sensor 8 is connected to the end of the rotating shaft 3 away from the front end cover 12. At the same time, the frequency conversion sensor 8 cooperates with the electronic circuit board 10, and the pulse signal of the frequency conversion sensor 8 is processed by the electronic circuit board 10. Through filtering, amplification and shaping, the original signal is converted into a digital signal that can be processed by the frequency conversion control system (electronic circuit board 10), and the output frequency and voltage are adjusted according to these signals and the control algorithm; according to the speed and position information fed back by the frequency conversion sensor 8, the output frequency and voltage are dynamically adjusted to achieve precise control of the motor speed and torque.

[0080] Furthermore, the frequency conversion sensor 8 is preferably a PG sensor.

[0081] Through the cooperation between the frequency conversion sensor 8 and the electronic circuit board 10, the rotor pole position can be detected in real time, avoiding the worry of demagnetization caused by stalling, losing step, zero position deviation and other problems of the permanent magnet motor (including the housing 1, the moving component 2 and the rotating shaft 3) due to sudden load changes.

[0082] In view of the above, the frequency conversion sensor 8 of the present application does not require physical contact, the working principle is relatively simple, it can achieve higher reliability, reduce dependence on external sensors, thereby reducing costs and maintenance difficulties, and its small size greatly eliminates the need for electrical control cabinets and cumbersome wiring. It can be widely used in computer data centers, petrochemicals, logistics warehousing, papermaking, printing, washing, new energy transportation and other multi-field equipment.

[0083] The above improvements have been made in terms of frequency conversion and heat dissipation, and further improvements have been made in terms of daily maintenance and detection. The internal cooling fan 5 is further optimized, and the measurement component 6 and the signal feedback component 7 are simultaneously set to cooperate, as follows:

[0084] For reference Figure 2 and Figure 7 The cooling fan 5 is provided with five blades 51, each of which is provided with an opening 52 with a depth of 5 mm; an elastic sheet 53 adapted to the depth of the opening 52 is provided in the opening 52, and a moving contact 54 is provided on the outward side of the elastic sheet 53; when an object touches the moving contact 54, the elastic sheet 53 will be deformed, and thus the deformation of the elastic sheet 53 can cause the contacting object to leave directly without being blocked by the elastic sheet 53.

[0085] For reference Figure 2 , Figure 7 and Figure 8 In order to promote the working of the moving contact 54, a measuring component 6 is further provided, and the measuring component 6 includes a ring shaft 61, a convex shaft 62, a static contact 63 and a contact piece 64; the ring shaft 61 is connected and arranged in the partition 4 for support; there are five convex shafts 62, which are distributed on the ring shaft 61, and the five convex shafts 62 are used to cooperate with the elastic sheet 53 in the cooling fan 5; the static contact 63 is arranged on the side of the convex shaft 62 away from the ring shaft 61, and is used to promote the static contact 63 to form a connection with the moving contact 54 during the coordinated movement of the convex shaft 62 and the elastic sheet 53, thereby sending a signal; there are five contact pieces 64, which are respectively connected to the corresponding five static contacts 63, and are used to transmit to the signal feedback component 7 through the contact piece 64 after the static contact 63 is connected to the moving contact 54, so as to form a visual signal feedback state presentation.

[0086] Due to the deformable setting of the elastic sheet 53, in order to avoid the problem of internal loss caused by frequent contact between the convex shaft 62 and the elastic sheet 53, the position of the convex shaft 62 is further set. First, the contact distance between the convex shaft 62 and the elastic sheet 53 is set. When the convex shaft 62 contacts the elastic sheet 53, the maximum downward deformation range of the elastic sheet 53 is 2mm, that is, when the cooling fan 5 is stationary, the depth of the convex shaft 62 immersed in the opening 52 is 2mm. The short-distance contact can also effectively reduce the occurrence of large-scale deformation of the elastic sheet 53.

[0087] For further reference Figure 9-10, set a starting point 601 on the ring axis 61, and divide the ring axis 61 into five equal short axes 611 from the starting point 601, and divide each short axis 611 into four equal small axes 612; the position of one small axis 612 clockwise from the starting point 601 is the first convex axis 62 setting point; the position of two small axes 612 counterclockwise from the starting point 601 is the second convex axis 62 setting point; the position of five small axes 612 counterclockwise from the starting point 601 is the third convex axis 62 setting point; the position of eight small axes 612 counterclockwise from the starting point 601 is the fourth convex axis 62 setting point; The position of the eleven small shafts 612 counterclockwise from the starting point 601 is the setting point of the fifth cam 62; in the process of rotation, only the first cam 62 and the fifth cam 62 are in contact with the moving contact 54 through synchronous rotation, and there are two position signals at this time; the remaining second cam 62, third cam 62 and fourth cam 62 are all in contact with the moving contact 54 individually, and there is only one signal at this time; therefore, during the rotation, at most only two cams 62 will be in contact with the elastic sheet 53, and the frequency is one quarter; therefore, the problem of easy wear and tear of the elastic sheet 53 due to frequent movement can be effectively reduced, and time is given to the elastic sheet 53 to reset.

[0088] The signal formed by the intersection of the static contact 63 and the movable contact 54 is reacted by the signal feedback component 7, and the signal feedback component 7 includes a display 71, a contact clip 72 and a signal light 73;

[0089] For reference Figure 8 and Fig.11 , the display device 71 is installed on the housing 1 and is used to process the processing signal after the contact piece 64 is connected and energized with the contact clip 72;

[0090] The contact clip 72 is movably disposed on the display device 71, and is in contact with the contact piece 64 to be energized. When the contact clip 72 is moved, the power supply between the contact clip 72 and the contact piece 64 can be controlled to be disconnected, thereby disconnecting the power supply when the component is not in use to reduce waste.

[0091] The number of signal lights 73 is the same as that of the static contacts 63, and they are arranged on the display device 71 to display the state of the static contacts 63 and the moving contacts 54 after being energized. One signal light 73 corresponds to one static contact 63. When the static contact 63 at the corresponding location is in contact with the moving contact 54, the corresponding signal light 73 lights up.

[0092] The display device 71 determines the stability of the internal movement by observing the regular changes of the signal light 73; secondly, the cooling fan 5 is installed on the rotating shaft 3. When the internal cooling fan is loosely connected, the movement mode between the connection signals will change, thereby changing the lighting condition of the signal light 73. At this time, the contact current signal and the brightness of the signal light 73 can be accurately observed to determine the internal situation; and when the internal partition 4 or the measuring component 6 deviates, it will also affect the original lighting pattern, so that the display device 71 can process and observe the changes and perform internal maintenance; this structure can also be used to check the internal situation without disassembly during daily inspections, so as to realize operation and facilitate random inspections.

[0093] The specific operating functions of this variable frequency permanent magnet integrated machine are as follows:

[0094] The device of the present application includes a housing 1, a motion component 2, a rotating shaft 3, a heat dissipation system, a frequency conversion sensor and a signal feedback component 7. Through the coordinated work of multiple components, frequency conversion and heat dissipation are integrated to improve the performance and reliability of the equipment; the housing 1 is divided into a base 11, a front cover 12 and a rear cover 13, and is divided into different areas by a sealing plate 14 to optimize heat dissipation and functional layout; the motion component 2 includes a rotor component 21, a stator component 22 and a heat dissipation unit 23, wherein the heat dissipation unit 23 is composed of a circular shaft plate 231, an aluminum leaf 232, a conical column 233 and a mounting shaft 234, and the heat dissipation efficiency is significantly improved through airflow optimization and structural design;

[0095] A cooling fan 5 is installed in the rear end cover 13 and a heat dissipation shell 9 is connected to one side of the housing 1. The heat dissipation shell 9 further enhances the heat dissipation effect through the design of linear heat dissipation blades, trapezoidal grooves 94 and driving fans 95. The setting of the partition 4 prevents the heat from affecting the performance of the internal electronic circuit board 10. In addition, the frequency conversion sensor 8 replaces the traditional encoder and cooperates with the electronic circuit board 10 to detect the rotor position and speed in real time, and accurately controls the speed and torque of the motor through signal processing, which simplifies the structure and reduces the cost.

[0096] The signal feedback component 7 dynamically monitors the operating status of the equipment by cooperating with the moving contact 54 on the cooling fan 5 and the static contact 63 on the measuring component 6; the signal light 73 displays the stability of the equipment operation through the feedback current change and its lighting condition, which helps the user to judge internal faults and perform maintenance without disassembly.

[0097] The above description is only for illustrating the present invention. It should be understood that the present invention is not limited to the above embodiments, and various variations that conform to the concept of the present invention are within the protection scope of the present invention.

Claims

1. A variable frequency permanent magnet integrated machine, characterized in that: include: The housing (1) comprises a base (11), a front cover (12) and a rear cover (13); a sealing plate (14) is provided in the middle of the rear cover (13) to divide the rear cover (13) into an A zone (131) and a B zone (132); A motion component (2) is disposed in the housing (1); The rotating shaft (3) is arranged inside the moving component (2), and the end of the rotating shaft (3) away from the front cover (12) passes through the rear cover (13), the A area (131) and the sealing plate (14) and is located in the B area (132); A partition plate (4) is arranged at one end of the region B (132) away from the sealing plate (14); A cooling fan (5), located in the B zone (132) and mounted on the rotating shaft (3); A measuring component (6) is connected to the partition (4) and contacts the cooling fan (5) to generate a signal when the cooling fan (5) rotates; A signal feedback component (7) is disposed on the outer surface of the housing (1) and is used to display changes in the signal when the measuring component (6) contacts the cooling fan (5); A variable frequency sensor (8) is coaxially mounted on the partition (4) and connected to the rotating shaft (3); A heat dissipation shell (9) is connected to one end of the outer shell (1) and contains an electronic circuit board (10) for the frequency conversion sensor (8).

2. The variable frequency permanent magnet integrated machine according to claim 1, characterized in that: The motion component (2) comprises a rotor component (21), a stator component (22) and a heat dissipation unit (23); The rotor assembly (21) is arranged on the outer surface of the rotating shaft (3); The stator assembly (22) is arranged on the outer surface of the rotor assembly (21); The heat dissipation units (23) are arranged on both sides of the rotor assembly (21).

3. The variable frequency permanent magnet integrated machine according to claim 2, characterized in that: The heat dissipation unit (23) comprises a circular shaft plate (231), an aluminum leaf (232), a conical column (233) and a mounting shaft (234); There are two groups of circular shaft plates (231), which are arranged on both sides of the rotor assembly (21) and are coaxially arranged with the rotor assembly (21). The two groups of circular shaft plates (231) are connected and fixed in the middle by hexagonal bolts; There are a plurality of the aluminum leaves (232), the tapered columns (233), and the mounting shafts (234), which are all distributed on the circular shaft plate (231).

4. The variable frequency permanent magnet integrated machine according to claim 3, characterized in that: A plurality of bottom shafts (2311) are evenly spaced and arranged on one side of the circular shaft plate (231) away from the aluminum leaf (232), the conical column (233) and the mounting shaft (234); a side surface of the bottom shaft (2311) is in direct contact with the rotor assembly (21), thereby forming a gap between the circular shaft plate (231) and the rotor assembly (21); The circular axis plates (231) are provided with the same number of mounting holes (2312) corresponding to the mounting shafts (234), and the mounting shafts (234) and mounting holes (2312) on the two groups of circular axis plates (231) are arranged opposite to each other; the mounting shafts (234) and mounting holes (2312) correspond to the two sides of the hexagonal bolts penetrating the two circular axis plates (231).

5. The variable frequency permanent magnet integrated machine according to claim 1, characterized in that: The cooling fan (5) is provided with five blades (51), each of the blades (51) is provided with an opening (52) with a depth of 5 mm, an elastic sheet (53) adapted to the depth of the opening (52) is provided in the opening (52), and a moving contact (54) is provided on the elastic sheet (53).

6. The variable frequency permanent magnet integrated machine according to claim 1, characterized in that: The measuring assembly (6) comprises a ring shaft (61), a convex shaft (62), a static contact (63) and a contact sheet (64); The ring shaft (61) is connected and arranged inside the partition (4); The convex shafts (62) are provided with five, which are distributed on the ring shaft (61); The static contact (63) is arranged on a side of the convex shaft (62) away from the ring shaft (61); The contact sheets (64) are provided with five pieces, which are respectively connected to the corresponding five static contact points (63).

7. The variable frequency permanent magnet integrated machine according to claim 6, characterized in that: A starting point (601) is set on the ring axis (61), and starting from the starting point (601), the ring axis (61) is equally spaced into five short axes (611), and one short axis (611) is equally divided into four small axes (612); The position of the first small shaft (612) clockwise from the starting point (601) is the setting point of the first convex shaft (62); The positions of the two small shafts (612) counterclockwise from the starting point (601) are the setting points of the second convex shaft (62); The positions of the five small shafts (612) counterclockwise from the starting point (601) are the setting points of the third convex shaft (62); The positions of the eight small shafts (612) counterclockwise from the starting point (601) are the setting points of the fourth convex shaft (62); The position of the eleven small shafts (612) counterclockwise from the starting point (601) is the setting point of the fifth convex shaft (62); The first convex shaft (62) and the fifth convex shaft (62) are in contact with the moving contact (54) by rotating synchronously; the remaining second convex shaft (62), third convex shaft (62) and fourth convex shaft (62) are in contact with the moving contact (54) individually.

8. The variable frequency permanent magnet integrated machine according to claim 6, characterized in that: The signal feedback component (7) comprises a display (71), a contact clip (72) and a signal light (73); The display device (71) is mounted on the housing (1); The contact clip (72) is movably disposed on the display device (71) and is in contact with the contact piece (64) to be energized; The signal lights (73) are the same in number as the static contacts (63) and are arranged on the display device (71) to display the state of the static contacts (63) and the moving contacts (54) after they are in contact and energized.

9. The variable frequency permanent magnet integrated machine according to claim 1, characterized in that: The frequency conversion sensor (8) is a PG sensor.

10. The variable frequency permanent magnet integrated machine according to claim 1, characterized in that: The outer surface of the heat dissipation shell (9) is divided into a C area (91), a D area (92) and an E area (93); The C zone (91) is provided with a plurality of linear heat dissipation blades on its central surface, and the central portion of the C zone (91) is recessed toward one side of the housing (1) to form a trapezoidal groove (94), wherein a driving fan (95) is provided in the trapezoidal groove (94); The D zone (92) and the E zone (93) are respectively arranged on two sides of the C zone (91); The D zone (92) is provided with a plurality of linear heat dissipation blades, which are arranged in a cross shape with the heat dissipation blades of the C zone (91); The E area (93) is used for installing a waterproof joint.

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