A permanent magnet motor with low inertia and capable of rapid dynamic response

Abstract

The present invention relates to the technical field of permanent magnet motors, and discloses a permanent magnet motor with low inertia and fast dynamic response, comprising a motor housing, wherein the motor shaft is rotatably connected to the internal axis of the motor housing, the rear side of the motor housing is fixedly connected to a heat dissipation end housing, the bottom surface of the motor housing is fixedly connected to a hinged seat, both sides of the motor housing are provided with an assembling structure, the interior of the assembling structure is provided with a heat dissipation and moisture-proof structure, the interior of the heat dissipation end housing is provided with a cleaning structure, and the rear side surface of the motor housing is fixedly connected to a bearing seat plate; the assembling structure includes a notch arc bar, and splicing grooves are opened on both sides of the motor housing, and the notch arc bar is fixedly connected to the inner side of the splicing groove, and a plurality of splicing slide bars are fixedly connected to the front and rear sides of the splicing groove. The present invention improves the efficiency of the motor in production, installation, maintenance and disassembly through a modular splicing structure, thereby reducing the complexity and cost of maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of permanent magnet motors, and in particular to a permanent magnet motor with low inertia and fast dynamic response. Background Art

[0002] High dynamic response may cause the motor to generate more heat, requiring an effective heat dissipation design to maintain the stability and life of the motor. The inertia can be reduced by optimizing the motor's rotor design and using lightweight materials. The low-inertia rotor can accelerate and decelerate quickly, thereby improving the dynamic response capability of the motor.

[0003] The patent with announcement number CN220570388U discloses an air-cooled permanent magnet motor housing that is easy to assemble, relating to the technical field of air-cooled permanent magnet motor housings, a movable square cover, which is arranged on one side of the permanent magnet motor body, and a protective inner square block is provided at one end of the movable square cover, and limiting square blocks are provided on both sides of the protective inner square block, and the limiting square blocks are fixedly connected to the protective inner square blocks by limiting springs; anti-slip circular soft protrusions are arranged on both sides of the movable square cover, and the anti-slip circular soft protrusions are adhesively connected to the movable square cover, and there are more than two anti-slip circular soft protrusions, and anti-slip soft strips are provided at both ends of the permanent magnet motor body, and there are more than two anti-slip soft strips; this air-cooled permanent magnet motor housing that is easy to assemble can make workers more stable during assembly through the combination design of anti-slip soft strips and anti-slip circular soft protrusions, thereby effectively reducing the time required for workers to perform assembly. However, this patent also has the problem that the internal structure of the permanent magnet motor is relatively complex, the faulty structure cannot be disassembled, and maintenance and troubleshooting are relatively difficult. Therefore, it is necessary to design a permanent magnet motor with low inertia and fast dynamic response. Summary of the Invention

[0004] The object of the present invention is to provide a permanent magnet motor with low inertia and fast dynamic response, so as to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a permanent magnet motor with low inertia and fast dynamic response, comprising a motor housing, a motor shaft rotatably connected to the inner axis of the motor housing, a heat dissipation end housing fixedly connected to the rear side of the motor housing, a hinged seat fixedly connected to the bottom surface of the motor housing, an assembly structure provided on both sides of the motor housing, a heat dissipation and moisture-proof structure provided inside the assembly structure, a cleaning structure provided inside the heat dissipation end housing, and a bearing seat plate fixedly connected to the rear side of the motor housing;

[0006] The top of the motor is installed with a plurality of connecting strips, and the connecting strips are connected with the outer cover of the motor to form a plurality of connecting strips. The fixing block is slidably connected to the top of the spliced end shell. When the internal wire of the motor shell overheats and melts or the permanent magnet inside the motor shell loses its magnetism due to excessive temperature and fails, the permanent magnet in the motor shell needs to be replaced. First, remove the top cover and rotate the limit collar to make the limit collar move upward along the threaded rod. The limit collar disengages from the outer wedge ring and the inner wedge ring, allowing the splicing slide groove on the side of the spliced end shell and the splicing slide bar inside the splicing groove to slide, so that the spliced end shell is separated from the notch arc bar. After the spliced end shell is separated from the splicing slide bar, the spliced end shell drives the connected splicing hinge block to deflect and expand around the connection point of the hinge seat, so that the upper and lower halves of the motor shell can be disassembled and opened. Through the structural cooperation of the spliced end shell and the splicing slide bar, the time required for screw limiting and installation is reduced, and the efficiency of installing and replacing accessories is improved. At the same time, the spliced end shell is fitted with the motor shell in conjunction with the splicing hinge block to clamp the upper and lower parts of the motor shell.

[0007] According to the above technical solution, the heat dissipation and moisture-proof structure includes an exhaust slot, the exhaust slot is opened on the front side of the ventilation end shell, the interior of the spliced end shell is fixedly connected with an inner fin, the side of the inner fin away from the motor shell is fixedly connected with a guide fin, the rear end side of the ventilation end shell is provided with an air outlet slot, the side of the inner fin is provided with a triangular groove, and the inner side of the triangular groove is hingedly connected with a wind resistance plate, the inner bottom end of the spliced end shell is fixedly connected with a dehumidification mesh cover, the side of the dehumidification mesh cover away from the motor shell is slidably connected to a sealing block, the side of the sealing block close to the spliced end shell is fixedly connected with a sealing connecting rod, the end of the sealing connecting rod away from the sealing block is slidably connected to a blocking rod, and the sealing The bottom edge of the road block is fixedly connected with a downward push plate, and the bottom surface of the dehumidification mesh cover is fixedly connected with three vertical sliding rods, and the exhaust slot extends to the interior of the motor housing, and the baffle rod slides through the outer wall from the inside of the dehumidification mesh cover, and the vertical sliding rod is slidably connected to the road sealing block, and a spring is provided on the inside of the baffle rod, and the two ends of the spring are fixedly connected to the baffle rod and the dehumidification mesh cover respectively. When the motor shaft rotates, the air inside the heat dissipation end shell is discharged from the rear side, so that the air flow inside the heat dissipation end shell drives the air flow inside the ventilation end shell and the splicing end shell. The air in the front half of the motor shell enters the interior of the ventilation end shell through the exhaust slot, and the splicing end shell fits the side of the motor shell, which will absorb the heat generated inside the motor shell. The heat absorbed by the inner fins is taken away by the air flow through the spliced end shell. The wind resistance sheet in the triangular groove on the side of the inner fin is pressurized by the flowing air to push the resistance sheet rod, so that the resistance sheet rod pushes the sealing block connected to the sealing connecting rod downward along the dehumidification mesh cover, so that the exhaust slot is connected to the air outlet slot through the ventilation end shell. In addition, the air flowing into the ventilation end shell from the exhaust slot will pass through the guide fins and enter the air outlet slot, allowing the air at the inner fins to enter the ventilation end shell and converge at the guide fins, so that the converged air enters the air outlet slot along the ventilation end shell together, and the heat on the guide fins will be taken away when the air flows in the ventilation end shell, and the surrounding air flow in the inner fins will be While automatically lowering the internal temperature of the motor casing, the outside air is allowed to enter from the top of the spliced end shell, and the built-in control module inside the top of the spliced end shell is cooled, thereby comprehensively reducing the temperature of the heating position and improving the heat dissipation effect. At the same time, when the motor shaft is not rotating, the air flow in the inner fins is reduced, and the wind baffle is no longer affected by air resistance, so that the spring on the inside of the baffle rod is reset and the sealing connecting rod is pulled to move the sealing connecting rod upward to push the sealing block to block the ventilation end shell, preventing external moisture from entering the interior of the motor casing along the ventilation end shell and the exhaust slot. At this time, the air entering the ventilation end shell through the top of the spliced end shell and the air outlet slot is passed into the dehumidification mesh cover, so that the particulate material in the dehumidification mesh cover absorbs moisture in the air.

[0008] The transmission mechanism that this invention relates to is that this invention relates to a gear that is fixed on the bearing support plate, and this gear is fixed on the bearing support plate, and this gear is fixed on the bearing support plate, and this gear is fixed on the bearing support plate, and this gear is fixed on the bearing support plate, and this gear is fixed on the bearing support plate, and this gear is fixed on the bearing support plate, and this gear is fixed on the bearing support plate, and this gear is fixed on the bearing support plate, and this gear is fixed on the bearing support plate, and this gear is fixed on the bearing support plate, and this gear is fixed on The outer wall of the heat dissipation end shell penetrates into the interior, the arc filter and the brush rod are fitted with each other, the fan blades are slidably connected with the spline strips, and the meshing grooves are meshed with the meshing teeth. When the motor shaft starts working, the fan blades are driven to rotate by the rotation of the motor shaft, so that the fan blades discharge the air inside the heat dissipation end shell outwards. When the fan blade speed is slow, the fan blades are in the initial state under the action of the spring sheet connected to the rod disk. When the fan blade speed accelerates, the fan blades will slide along the spline strips and pull the spring sheet to deform, and allow the fan blades to allow the meshing ring to pass through the meshing teeth and approach the meshing groove of the empty shaft rotating ring. After the meshing teeth are engaged with the meshing grooves, the fan blades drive the empty shaft rotating ring to rotate, thereby allowing the empty shaft to rotate around the axis of the bearing seat plate, and allowing the empty shaft rotating ring to drive the connected telescopic rod to rotate, and using the centrifugal force when the telescopic rod rotates to throw the extension rod out, so that the extension rod contacts the arc filter through the brush rod, and the arc filter is cleaned by the brush rod.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] The present invention is provided with notched arc strips, splicing slide strips, engaging fixing blocks, outer wedge rings, inner wedge rings, threaded rods, limiting collars, splicing end shells, splicing slide grooves, ventilated end shells, splicing hinge blocks, and top covers. The splicing end shells and the splicing slide strips are structurally coordinated to reduce the time required for screw limiting and installation, thereby improving the efficiency of installing and replacing accessories. At the same time, the splicing end shells are matched with the splicing hinge blocks to fit the motor housing, clamping the upper and lower parts of the motor housing. The modular splicing structure improves the efficiency of the motor in production, installation, maintenance, and disassembly, thereby reducing the complexity and cost of maintenance.

[0011] The present invention is provided with exhaust notches, inner fins, guide fins, air outlet notches, wind baffles, baffle rods, sealing connecting rods, sealing blocks, dehumidification mesh covers, vertical sliding rods, and downward push plates. While the ambient air flow in the inner fins reduces the internal temperature of the motor casing, the outside air is allowed to enter from the top of the spliced end casing and dissipate heat to the control module built into the top of the spliced end casing, thereby comprehensively reducing the temperature of the heating position and improving the heat dissipation effect. At the same time, the air entering the ventilation end casing through the top of the spliced end casing and the air outlet notches is passed into the dehumidification mesh cover, so that the granular material in the dehumidification mesh cover absorbs moisture in the air and plays a role in absorbing moisture, thereby ensuring that the motor casing has a good heat dissipation effect and preventing moisture from corroding the interior of the motor casing and the outer shell structure.

[0012] The present invention is provided with a hollow shaft swivel, an engaging groove, an engaging ring, engaging teeth, fan blades, a rod disk, a spring sheet, a telescopic rod, an extension rod, a brush rod, and a spline bar. The centrifugal force when the telescopic rod rotates is used to swing the extension rod out, so that the extension rod contacts the arc filter through the brush rod, and the arc filter is cleaned by the brush rod, so as to prevent the air flow rate from accelerating and causing the dust at the arc filter to be quickly blocked, and to prevent the arc filter from being attached to dust and affecting the ventilation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0014] In the attached figure:

[0015] Figure 1 It is a schematic diagram of the overall front three-dimensional structure of the present invention;

[0016] Figure 2 It is a rear perspective structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure distribution of the motor housing of the present invention;

[0018] Figure 4 It is a structural schematic diagram of the assembled structure of the present invention;

[0019] Figure 5 It is a structural schematic diagram of the heat dissipation and moisture-proof structure of the present invention;

[0020] Figure 6 It is a schematic diagram of the structure inside the moisture removal screen cover of the present invention;

[0021] Figure 7 This is a schematic diagram of the connection structure of the road sealing block of the present invention;

[0022] Figure 8 It is a structural schematic diagram of the cleaning structure of the present invention;

[0023] Figure 9 This invention Figure 8 Schematic diagram of the enlarged structure of A in the figure.

[0024] In the figure: 1. Motor housing; 2. Motor shaft; 3. Heat dissipation end housing; 4. Articulated seat; 5. Assembly structure; 51. Notch arc strip; 52. Splicing slide bar; 53. Fitting block; 54. Outer wedge ring; 55. Inner wedge ring; 56. Threaded rod; 57. Limiting collar; 58. Splicing end housing; 59. Splicing slide groove; 510. Ventilation end housing; 511. Splicing hinge block; 512. Top cover; 6. Heat dissipation and moisture-proof structure; 61. Exhaust notch; 62. Inner fin; 63. Guide fin; 64. Air outlet slot; 65. Wind baffle; 66. Baffle rod; 67. Sealing connecting rod; 68. Road sealing block; 69. Dehumidification mesh cover; 610. Vertical sliding rod; 611. Downward push plate; 7. Cleaning structure; 71. Hollow shaft swivel; 72. Engaging groove; 73. Engaging ring; 74. Engaging teeth; 75. Fan blade; 76. Rod plate; 77. Spring leaf; 78. Telescopic rod; 79. Extension rod; 710. Brush rod; 711. Spline strip; 712. Arc filter; 8. Bearing seat plate. DETAILED DESCRIPTION

[0025] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] See also Figures 1-9 The present invention is a permanent magnet motor with low inertia and fast dynamic response, comprising a motor housing 1, a motor shaft 2 being rotatably connected to the inner axis of the motor housing 1, a heat dissipation end housing 3 being fixedly connected to the rear side of the motor housing 1, a hinge seat 4 being fixedly connected to the bottom surface of the motor housing 1, an assembly structure 5 being provided on both sides of the motor housing 1, a heat dissipation and moisture-proof structure 6 being provided inside the assembly structure 5, a cleaning structure 7 being provided inside the heat dissipation end housing 3, and a bearing seat plate 8 being fixedly connected to the rear side surface of the motor housing 1;

[0027] The assembly structure 5 includes a notch arc bar 51, and splicing grooves are provided on both sides of the motor housing 1, and the notch arc bar 51 is fixedly connected to the inner side of the splicing groove, and a plurality of splicing slide bars 52 are fixedly connected to the front and rear sides of the splicing groove. The top of the motor housing 1 is fixedly connected with a fitting solid block 53, and a splicing end shell 58 is provided on the inner side of each splicing groove. A plurality of splicing slide grooves 59 are provided on the front and rear sides of the splicing end shell 58. The top of each splicing end shell 58 is fixedly connected with an outer wedge ring 54 and an inner wedge ring 55. The top surface of the fitting solid block 53 is fixedly connected with a threaded rod 56, and a limiting collar 57 is provided on the outer side of the threaded rod 56. The side of the splicing end shell 58 is fixedly connected with a ventilation end shell 510. Both sides of the hinged seat 4 are hingedly connected. The splicing hinge block 511 and the top of the splicing end shell 58 are provided with a top cover 512, the splicing slide 59 and the structure of the splicing slide bar 52 fit together, the splicing end shell 58 and the ventilation end shell 510 are interconnected, the splicing slide 59 is slidingly connected to the splicing hinge block 511, and the fitting solid block 53 is slidingly connected to the top of the splicing end shell 58. Through the structural coordination of the splicing end shell 58 and the splicing slide bar 52, the time required for screw limiting and installation is reduced, and the efficiency of installation and replacement of accessories is improved. At the same time, the splicing end shell 58 cooperates with the splicing hinge block 511 to fit the motor housing 1, and the upper and lower parts of the motor housing 1 are clamped. Through the modular splicing structure, the efficiency of the motor in production installation and maintenance and disassembly is improved, thereby reducing the complexity and cost of maintenance.

[0028] The heat dissipation and moisture-proof structure 6 includes an exhaust slot 61, which is provided on the front side of the ventilation end shell 510, and an inner fin 62 is fixedly connected to the inside of the splicing end shell 58, and a guide fin 63 is fixedly connected to the side of the inner fin 62 away from the motor shell 1. An air outlet slot 64 is provided on the rear end side of the ventilation end shell 510, and a triangular groove is provided on the side of the inner fin 62, and a wind resistance piece 65 is hingedly connected to the inner side of the triangular groove. The bottom end of the interior of the splicing end shell 58 is fixedly connected to a dehumidification mesh cover 69, and the side of the dehumidification mesh cover 69 away from the motor shell 1 is slidably connected to a sealing block 68. The side of the sealing block 68 close to the splicing end shell 58 is fixedly connected to a sealing connecting rod 67, and the end of the sealing connecting rod 67 away from the sealing block 68 is slidably connected to a blocking rod 66, and the bottom edge of the sealing block 68 is fixedly connected to a downward push plate 61 1. Three vertical sliding rods 610 are fixedly connected to the bottom surface of the interior of the dehumidification mesh cover 69, and the exhaust slot 61 passes through the interior of the motor housing 1. The baffle rod 66 slides from the inside of the dehumidification mesh cover 69 to pass through the outer wall. The vertical sliding rod 610 is slidably connected to the sealing block 68. A spring is provided on the inside of the baffle rod 66, and the two ends of the spring are fixedly connected to the baffle rod 66 and the dehumidification mesh cover 69 respectively to prevent external moisture from entering the interior of the motor housing 1 along the ventilation end shell 510 and the exhaust slot 61. At this time, the air entering the ventilation end shell 510 through the top of the spliced end shell 58 and the air outlet slot 64 passes into the dehumidification mesh cover 69, so that the particulate material in the dehumidification mesh cover 69 adsorbs moisture in the air, plays a role in absorbing moisture, ensures that the motor housing 1 has a good heat dissipation effect, and prevents moisture from corroding the interior and outer shell structure of the motor housing 1.

[0029] The cleaning structure 7 includes an empty shaft swivel 71, which is rotatably connected to the rear side of the axis of the bearing seat plate 8. The rear side of the empty shaft swivel 71 is provided with an engaging groove 72, and the rear side of the engaging groove 72 is provided with an engaging tooth 74. The rear side of the engaging tooth 74 is fixedly connected to the engaging ring 73. The outer surface of the rear end of the motor shaft 2 is fixedly connected to two spline strips 711. The outer side of the rear end of the motor shaft 2 is slidably connected to the fan blade 75. The rear end of the motor shaft 2 is fixedly connected to a rod disk 76. The side of the rod disk 76 close to the fan blade 75 is fixedly connected to a spring sheet 77, and the two ends of the spring sheet 77 are respectively fixedly connected to the fan blade 75 and the rod disk 76. The outer surface of the empty shaft swivel 71 is fixedly connected to two telescopic rods 78. Each telescopic rod 78 is away from the empty shaft swivel 71. One end is slidably connected to an extension rod 79, and the end of the extension rod 79 away from the telescopic rod 78 is fixedly connected to a brush rod 710. The inner side of the air outlet slot 64 is fixedly connected to an arc filter 712, and the air outlet slot 64 passes through the outer wall of the heat dissipation end shell 3 to the inside. The arc filter 712 and the brush rod 710 fit together, the fan blades 75 are slidably connected to the spline strip 711, and the meshing groove 72 is meshed with the meshing teeth 74. The centrifugal force when the telescopic rod 78 is rotated is used to throw the extension rod 79 out, so that the extension rod 79 contacts the arc filter 712 through the brush rod 710, and the arc filter 712 is cleaned by the brush rod 710 to prevent the air flow rate from accelerating and causing the dust at the arc filter 712 to be quickly blocked, thereby preventing the arc filter 712 from being attached to dust and affecting the ventilation efficiency.

[0030] Working principle: When the wire inside the motor housing 1 is overheated and melted or the permanent magnet inside the motor housing 1 loses its magnetism due to excessive temperature, the permanent magnet inside the motor housing 1 needs to be replaced. First, remove the top cover 512, rotate the limiting collar 57, and move the limiting collar 57 upward along the threaded rod 56. The limiting collar 57 is separated from the outer wedge ring 54 and the inner wedge ring 55, so that the splicing groove 59 on the side of the splicing end shell 58 slides with the splicing slide bar 52 on the inner side of the splicing groove, so that the splicing end shell 58 is separated from the notch arc bar 51, so that the splicing end shell 58 is separated from the splicing end shell. After the slide bar 52 is connected, the splicing end shell 58 drives the connected splicing hinge block 511 to deflect and expand around the connection point of the hinge seat 4, so that the upper and lower halves of the motor housing 1 can be disassembled and opened. The structural cooperation between the splicing end shell 58 and the splicing slide bar 52 reduces the time required for screw positioning and installation, and improves the efficiency of installing and replacing accessories. At the same time, the splicing end shell 58 cooperates with the splicing hinge block 511 to fit the motor housing 1, clamping the upper and lower parts of the motor housing 1. The modular splicing structure improves the efficiency of the motor during production installation and maintenance and disassembly, thereby reducing the complexity and cost of maintenance.

[0031] When the motor shaft 2 rotates, the air inside the heat dissipation end shell 3 is discharged from the rear side, so that the air flow inside the heat dissipation end shell 3 drives the air flow inside the ventilation end shell 510 and the splicing end shell 58. The air in the front half of the motor shell 1 enters the ventilation end shell 510 through the exhaust slot 61. The splicing end shell 58 fits the side of the motor shell 1 and absorbs the heat generated inside the motor shell 1. The heat absorbed by the inner fin 62 is taken away by the air flow through the splicing end shell 58. The wind resistance piece 65 in the triangular groove on the side of the inner fin 62 is The flowing air applies pressure to push the blocking rod 66, so that the blocking rod 66 pushes the sealing block 68 connected to the sealing connecting rod 67 downward along the dehumidification mesh cover 69, so that the exhaust slot 61 is connected to the air outlet slot 64 through the ventilation end shell 510. In addition, the air flowing from the exhaust slot 61 into the ventilation end shell 510 will pass through the guide fins 63 and enter the air outlet slot 64, allowing the air at the inner fins 62 to enter the ventilation end shell 510 and converge at the guide fins 63, so that the converged air enters the air outlet slot along the ventilation end shell 510 together. 64, when the air flows in the ventilation end shell 510, the heat on the guide fins 63 will be taken away. When the surrounding air flows in the inner fins 62 to reduce the internal temperature of the motor housing 1, the outside air is allowed to enter from the top of the spliced end shell 58 and dissipate heat to the control module built into the top of the spliced end shell 58, thereby comprehensively reducing the temperature of the heating position and improving the heat dissipation effect. At the same time, when the motor shaft 2 does not rotate, the air flow in the inner fins 62 is reduced, so that the wind resistance sheet 65 is no longer subject to air resistance, and the spring inside the wind resistance sheet rod 66 is restored. After the air is in the correct position, the sealing connecting rod 67 is pulled to move the sealing connecting rod 67 upwards and push the sealing block 68 to block the ventilation end shell 510, thereby preventing external moisture from entering the interior of the motor housing 1 along the ventilation end shell 510 and the exhaust notch 61. At this time, the air entering the ventilation end shell 510 through the top of the spliced end shell 58 and the exhaust notch 64 is passed into the dehumidification net cover 69, so that the granular material in the dehumidification net cover 69 absorbs the moisture in the air, thereby absorbing the moisture, ensuring that the motor housing 1 has a good heat dissipation effect while preventing moisture from corroding the interior and outer shell structure of the motor housing 1;

[0032] When the motor shaft 2 starts to work, the fan blades 75 are driven to rotate by the rotation of the motor shaft 2, so that the fan blades 75 discharge the air inside the heat dissipation end shell 3 to the outside. When the fan blades 75 rotate at a slow speed, the fan blades 75 are in the initial state under the action of the spring sheet 77 connected to the rod disk 76. When the fan blades 75 rotate at a faster speed, the fan blades 75 will slide along the spline strips 711 and pull the spring sheet 77 to deform, and let the fan blades 75 let the meshing ring 73 pass through the meshing teeth 74 close to the meshing groove 72 of the hollow shaft rotating ring 71, so that the meshing teeth 74 are meshed with the meshing groove 72. The fan blades 75 drive the hollow shaft swivel 71 to rotate, thereby allowing the hollow shaft swivel 71 to rotate around the axis of the bearing seat plate 8, and allowing the hollow shaft swivel 71 to drive the connected telescopic rod 78 to rotate, and use the centrifugal force when the telescopic rod 78 rotates to throw the extension rod 79 out, so that the extension rod 79 contacts the arc filter 712 through the brush rod 710, and the arc filter 712 is cleaned by the brush rod 710 to prevent the air flow rate from accelerating and causing the dust in the arc filter 712 to be quickly blocked, thereby preventing the arc filter 712 from being attached by dust and affecting the ventilation efficiency.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A permanent magnet motor with low inertia and fast dynamic response, comprising a motor housing (1), characterized in that: The motor housing (1) is rotatably connected to a motor shaft (2) at its internal axis, the rear side of the motor housing (1) is fixedly connected to a heat dissipation end housing (3), the bottom surface of the motor housing (1) is fixedly connected to a hinge seat (4), both sides of the motor housing (1) are provided with an assembly structure (5), the interior of the assembly structure (5) is provided with a heat dissipation and moisture-proof structure (6), the interior of the heat dissipation end housing (3) is provided with a cleaning structure (7), and the rear side surface of the motor housing (1) is fixedly connected to a bearing seat plate (8); The assembly structure (5) includes a slot arc bar (51), both sides of the motor housing (1) are provided with a splicing slot, and the slot arc bar (51) is fixedly connected to the inner side of the splicing slot, the front and rear sides of the splicing slot are fixedly connected with a plurality of splicing slide bars (52), the top of the motor housing (1) is fixedly connected with a fitting solid block (53), the inner side of each splicing slot is provided with a splicing end shell (58), and the front and rear sides of the splicing end shell (58) are provided with a plurality of splicing slide grooves (59); The heat dissipation and moisture-proof structure (6) includes an exhaust notch (61), the exhaust notch (61) is provided on the front side of the ventilation end shell (510), an inner fin (62) is fixedly connected to the interior of the spliced end shell (58), a guide fin (63) is fixedly connected to the side of the inner fin (62) away from the motor shell (1), and an exhaust notch (64) is provided on the rear side of the ventilation end shell (510); A triangular groove is provided on the side of the inner fin (62), and a wind resistance plate (65) is hingedly connected to the inner side of the triangular groove. The inner bottom end of the spliced end shell (58) is fixedly connected to a dehumidifying mesh cover (69). The side of the dehumidifying mesh cover (69) away from the motor shell (1) is slidably connected to a sealing block (68). The side of the sealing block (68) close to the spliced end shell (58) is fixedly connected to a sealing connecting rod (67). The end of the sealing connecting rod (67) away from the sealing block (68) is slidably connected to a blocking plate rod (66). The bottom edge of the sealing block (68) is fixedly connected to a downward push plate (611). The inner bottom surface of the dehumidifying mesh cover (69) is fixedly connected to three vertical sliding rods (610). The cleaning structure (7) comprises a hollow shaft rotating ring (71), the hollow shaft rotating ring (71) being rotatably connected to the rear side surface of the axis of the bearing seat plate (8), the rear side surface of the hollow shaft rotating ring (71) being provided with an engagement groove (72), the rear side surface of the engagement groove (72) being provided with an engagement tooth (74), the rear side surface of the engagement tooth (74) being fixedly connected to an engagement ring (73), the rear end outer surface of the motor shaft (2) being fixedly connected to two spline strips (711), the rear end outer side of the motor shaft (2) being slidably connected to a fan blade (75), the rear end of the motor shaft (2) being fixedly connected to a rod disk (76), the side of the rod disk (76) close to the fan blade (75) being fixedly connected to a spring sheet (77), and the two ends of the spring sheet (77) being fixedly connected to the fan blade (75) and the rod disk (76), respectively.

2. A permanent magnet motor with low inertia and fast dynamic response according to claim 1, characterized in that: The top of each spliced end shell (58) is fixedly connected to an outer wedge ring (54) and an inner wedge ring (55), the top surface of the fitting block (53) is fixedly connected to a threaded rod (56), and a limiting collar (57) is provided on the outer side of the threaded rod (56). The side of the spliced end shell (58) is fixedly connected to a ventilation end shell (510), both sides of the hinge seat (4) are hingedly connected to a spliced hinge block (511), and the top of the spliced end shell (58) is provided with a top cover (512).

3. The permanent magnet motor with low inertia and fast dynamic response according to claim 2, characterized in that: The structures of the splicing chute (59) and the splicing slide bar (52) are mutually matched, the splicing end shell (58) and the ventilation end shell (510) are mutually communicated, the splicing chute (59) is slidably connected to the splicing hinge block (511), and the fitting solid block (53) is slidably connected to the top of the splicing end shell (58).

4. The permanent magnet motor with low inertia and fast dynamic response according to claim 3, characterized in that: The exhaust notch (61) extends through the interior of the motor housing (1), the blocking rod (66) slides through the interior of the dehumidifying mesh cover (69) and extends out of the outer wall, the vertical sliding rod (610) is slidably connected to the sealing block (68), a spring is provided on the inner side of the blocking rod (66), and both ends of the spring are fixedly connected to the blocking rod (66) and the dehumidifying mesh cover (69), respectively.

5. The permanent magnet motor with low inertia and fast dynamic response according to claim 4, characterized in that: Two telescopic rods (78) are fixedly connected to the outer surface of the hollow shaft swivel (71), and an end of each telescopic rod (78) away from the hollow shaft swivel (71) is slidably connected to an extension rod (79), and an end of the extension rod (79) away from the telescopic rod (78) is fixedly connected to a brush rod (710), and an inner side of the air outlet slot (64) is fixedly connected to an arc-shaped filter screen (712).

6. The permanent magnet motor with low inertia and fast dynamic response according to claim 5, characterized in that: The air outlet slot (64) extends from the outer wall of the heat dissipation end shell (3) to the interior, and the arc-shaped filter screen (712) and the brush rod (710) fit together.

7. The permanent magnet motor with low inertia and fast dynamic response according to claim 6, characterized in that: The fan blade (75) is slidably connected to the spline bar (711), and the engagement groove (72) is meshingly connected to the engagement tooth (74).

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