Drive-controlled negative pressure cooling motor

Abstract

The application discloses a kind of drive control's negative pressure heat dissipation motor, it is related to motor heat dissipation technical field, the device includes motor body, the outside of motor body is fixedly connected with ventilation heat dissipation plate, the inside rotation of motor body is connected with shaft, the outside of shaft is provided with fan blade, the inside of motor body is provided with the auxiliary assembly for scraping dust on the surface of fan blade, the outside of shaft is provided with the easy-to-disassemble component for facilitating disassembly and replacement of fan blade, by the cooperation of auxiliary assembly, the automatic ejection and retraction of scraper are realized, so that the cleaning process does not need manual operation, simplifies cleaning step, improves cleaning efficiency, reduces the time that operator needs to directly contact fan inside or carry out complex operation, reduces the security risk caused by manual operation, also reduces the time cost of maintenance, by using one-way cleaning instead of back-and-forth cleaning for fan blade.

Description

Technical Field

[0001] This invention relates to the field of electric motor heat dissipation technology, specifically to a negative pressure heat dissipation electric motor with drive control. Background Technology

[0002] In today's industrial and technological fields, electric motors, as an important power device, are widely used in various applications. However, with the continuous increase in electric motor power and the extension of operating time, the problem of electric motor heat generation has become increasingly prominent. Excessive temperature can affect the performance and lifespan of the electric motor, and may even lead to motor failure and damage. Negative pressure cooling, as a new type of heat dissipation method, has the advantages of high heat dissipation efficiency and strong adaptability. By installing a fan inside or outside the electric motor, the fan rotation generates airflow, forming negative pressure, thus achieving negative pressure cooling. The fan rotation speed can be adjusted in real time according to the operating status and temperature changes of the electric motor, thereby achieving more precise and effective heat dissipation.

[0003] During operation, a fan draws in outside air, which often contains a large number of dust particles. This dust is carried by the airflow onto the fan blades, where it accumulates, affecting their aerodynamic characteristics, reducing airflow efficiency, and consequently decreasing heat dissipation. Reduced heat dissipation efficiency can cause the motor or related equipment to overheat, affecting its normal operation. Dust accumulation also causes the fan to generate more noise during operation because dust particles can cause the blades to become unbalanced, resulting in vibration. Furthermore, since the fan blades are fixed to the shaft with screws, disassembly and replacement of a damaged fan usually requires the use of screwdrivers or other tools, which takes a long time and requires considerable effort.

[0004] Therefore, this invention proposes a negative pressure cooling motor with drive control to improve the shortcomings of traditional technology. It can automatically clean the dust on the fan blades through mechanical means, ensuring the normal operation of the fan and good heat dissipation of the equipment. When the fan blades are damaged, they can be replaced by simply moving them. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a negative pressure cooling motor with drive control, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a negative pressure cooling motor for drive control, comprising a motor body, a ventilation and heat dissipation plate fixedly connected to the outside of the motor body, a rotating shaft rotatably connected inside the motor body, a fan blade disposed on the outside of the rotating shaft, an auxiliary component for scraping dust off the surface of the fan blade disposed inside the motor body, and an easy-to-disassemble component for convenient disassembly and replacement of the fan blade disposed outside the rotating shaft.

[0007] Preferably, the auxiliary component includes a component housing, the outer side of which is connected and fixedly connected to the interior of the motor body. An auxiliary column is slidably connected to one end of the component housing away from the motor body. A fixing plate is fixedly connected inside the component housing. Convex plates are symmetrically slidably connected inside the fixing plate. Sliding columns are slidably connected inside both convex plates. A first auxiliary block and a second auxiliary block are fixedly connected to the inner sides of the component housing near the inner sides of the two convex plates. An irregular rotating block is rotatably connected to the inner wall of the convex plate. A first cylinder is rotatably connected to the outer surface of the slide column. A first spring is fixedly connected between the bottom of the irregular rotating block and the outer surface of the convex plate. A moving block is fixedly connected to the outer surface of the slide column. A sliding groove is formed on the outer surface of the convex plate. The moving block slides inside the sliding groove. An auxiliary plate is slidably connected to the inner end of the slide column away from the auxiliary column. A second cylinder is fixedly connected to the inner wall of the end of the slide column away from the auxiliary column. A connecting plate is fixedly connected to the bottom of the auxiliary plate. A scraper is slidably connected inside the connecting plate. A second spring is fixedly connected between the scraper and the inner wall of the connecting plate.

[0008] Preferably, the end of the auxiliary column near the fixed plate is fixedly connected to the outer surface of the convex plate.

[0009] Preferably, the outer surface of the sliding column is provided with a circular hole, and the outer surface of the convex plate is provided with a through groove. The size of the first cylinder is adapted to the size of the circular hole and the through groove, and the first cylinder slides inside the through groove and the circular hole.

[0010] Preferably, the outer surface of the auxiliary plate is provided with an inclined groove, and the second cylinder slides inside the inclined groove.

[0011] Preferably, the easily detachable component includes a spring plate, one end of which is fixedly connected to the outer surface of the fan blades at the end of the spring plate away from the fan blades, a locking block is fixedly connected to the outer side of the end of the spring plate away from the fan blades, an installation groove is fixedly connected to the outer surface of the shaft, a rubber pad is fixedly connected to the inner wall of the installation groove, and a baffle plate is fixedly connected to the outer surface of the end of the installation groove located outside the shaft, and a locking groove is formed on the outer surface of the baffle plate.

[0012] Preferably, the spring sheet is V-shaped.

[0013] Preferably, the size of the card block is adapted to the size of the card slot.

[0014] The present invention provides the following beneficial effects:

[0015] 1. Through the coordinated use of auxiliary components, when the convex plate drives the irregular rotating block to move, it touches the first auxiliary block, causing the irregular rotating block to compress the first spring and drive the first cylinder to move upward so that its part is located inside the sliding column. The first auxiliary block causes the moving block to drive the sliding column to move, and the sliding column moves so that the scraper moves and is in close contact with the fan blades. When the convex plate moves back, the scraper cleans the dust on the surface of the fan blades. After cleaning, when the irregular rotating block is squeezed by the second auxiliary block, the sliding column moves and retracts the scraper, realizing the automatic pop-up and retraction of the scraper. It can scrape the dust on both sides of the fan blades at the same time, saving cleaning time and effort, simplifying the cleaning steps, and improving cleaning efficiency. Cleaning both sides at the same time can maintain the balance of the fan and reduce the imbalance problem caused by cleaning one side. By cleaning the fan blades in one direction instead of back and forth, it can avoid the cleaned area being contaminated by the uncleaned area again, which can reduce the possibility of such secondary pollution.

[0016] 2. Using two scrapers to remove dust from both sides of the fan blades reduces fan resistance, increases fan speed, and enhances heat dissipation. Removing dust allows the fan to work more efficiently, reducing energy consumption and noise. The second spring provides cushioning when the scrapers contact the blades, reducing the risk of scratches or damage. This helps maintain the integrity and performance of the fan blades, extending the fan's lifespan. The second spring also ensures a more even distribution of scraping force across the blade surface, preventing localized excessive force that could deform or damage the blades. This even force also improves dust removal, ensuring thorough cleaning of the fan blades.

[0017] 3. Through the use of easily detachable components, the fan blades can be easily disassembled and replaced when damaged. This design makes fan blade replacement very simple and quick, requiring no complicated tools. Quick fan blade replacement reduces downtime caused by fan blade damage and improves work efficiency. Because the spring sheet is V-shaped, it provides a large and uniform elastic restoring force, ensuring that the spring sheet can stably perform its locking or releasing function during operation. Its unique shape design provides elasticity while occupying relatively little space, making it suitable for devices with limited space. The rubber pad increases the friction with the spring sheet surface, thereby improving the gripping force of the easily detachable components and preventing the fan blades from falling off during movement or vibration. It has good elasticity and cushioning performance, absorbing some of the impact force when the spring sheet is used, reducing damage caused by impact or vibration. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall internal structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the spring sheet structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the easily detachable component structure of the present invention;

[0022] Figure 5 This is a cross-sectional view of the easily detachable component structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the internal structure of the component housing of the present invention;

[0024] Figure 7 This is a cross-sectional view of the outer shell structure of the component of the present invention;

[0025] Figure 8 for Figure 7 Enlarged structural diagram at point A in the middle;

[0026] Figure 9 This is a schematic diagram of the auxiliary component structure of the present invention;

[0027] Figure 10 This is a schematic diagram of the auxiliary plate structure of the present invention;

[0028] Figure 11 This is a schematic diagram of the location and structure of the auxiliary components of the present invention.

[0029] The labels in the diagram represent:

[0030] 1. Motor body; 2. Ventilation and heat dissipation plate; 3. Shaft; 4. Fan blades;

[0031] 5. Auxiliary components; 51. Component housing; 52. Auxiliary column; 53. Fixing plate; 54. Convex plate; 55. Sliding column; 56. First auxiliary block; 57. Second auxiliary block; 58. First cylinder; 59. Irregular rotating block; 510. First spring; 511. Moving block; 512. Auxiliary plate; 513. Second cylinder; 514. Connecting plate; 515. Scraper; 516. Second spring;

[0032] 6. Easily detachable components; 61. Spring sheet; 62. Locking block; 63. Mounting slot; 64. Rubber pad; 65. Blocking plate; 66. Locking groove. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] refer to Figures 1 to 11 As shown, a preferred embodiment of the present invention will be described in detail below:

[0035] A negative pressure cooling electric motor with drive control includes an electric motor body 1, a ventilation and heat dissipation plate 2 fixedly connected to the outside of the electric motor body 1, a rotating shaft 3 rotatably connected inside the electric motor body 1, a fan blade 4 disposed on the outside of the rotating shaft 3, an auxiliary component 5 for scraping dust off the surface of the fan blade 4 disposed inside the electric motor body 1, and an easy-to-remove component 6 for facilitating the disassembly and replacement of the fan blade 4 disposed outside the rotating shaft 3.

[0036] Auxiliary component 5 includes a component housing 51, the outer side of which is connected and fixedly connected to the interior of the motor body 1. An auxiliary post 52 is slidably connected to the end of the component housing 51 away from the motor body 1. A fixing plate 53 is fixedly connected inside the component housing 51. Convex plates 54 are symmetrically slidably connected inside the fixing plate 53. Sliding posts 55 are slidably connected inside both convex plates 54. A first auxiliary block 56 and a second auxiliary block 57 are fixedly connected to the inner sides of the component housing 51, respectively, near the inner sides of the two convex plates 54. The width of block 56 is larger than the width of the second auxiliary block 57. The first auxiliary block 56 can block the moving block 511. The width of the end of the second auxiliary block 57 away from the first auxiliary block 56 is the same as the width of the first auxiliary block 56, which can also block the moving block 511. An irregular rotating block 59 is rotatably connected to the inner wall of the convex plate 54. A first cylinder 58 is rotatably connected to the outer surface of the irregular rotating block 59. A first spring 510 is fixedly connected between the bottom of the irregular rotating block 59 and the outer surface of the convex plate 54. The outer surface of the sliding column 55... A movable block 511 is fixedly connected. A groove is formed on the outer surface of the convex plate 54, and the movable block 511 slides inside the groove. An auxiliary plate 512 is slidably connected to the end of the sliding column 55 away from the auxiliary column 52. A second cylinder 513 is fixedly connected to the inner wall of the end of the sliding column 55 away from the auxiliary column 52. A connecting plate 514 is fixedly connected to the bottom of the auxiliary plate 512. A scraper 515 is slidably connected inside the connecting plate 514. The dust on both sides of the fan blades 4 is scraped off by the two scrapers 515, which can reduce the resistance of the fan blades 4 and improve the fan speed. The scraping action enhances heat dissipation and removes dust, allowing the fan to operate more efficiently, reducing energy consumption and noise. The second spring 516 provides cushioning when the scraper 515 contacts the fan blades, reducing the risk of scratches or damage to the fan blade surface. This helps maintain the integrity and performance of the fan blades, extending the fan's lifespan. The second spring 516 also ensures a more even distribution of scraping force across the fan blade surface, preventing deformation or damage caused by excessive localized force. Furthermore, this even force distribution improves dust removal, ensuring thorough cleaning of the fan blades.

[0037] A second spring 516 is fixedly connected between the scraper 515 and the inner wall of the connecting plate 514. One end of the auxiliary column 52 near the fixed plate 53 is fixedly connected to the outer surface of the convex plate 54. A circular hole is formed on the outer surface of the sliding column 55, and a through groove is formed on the outer surface of the convex plate 54. The size of the first cylinder 58 is matched with the size of the circular hole and the through groove. The first cylinder 58 slides inside the through groove and the circular hole. An inclined groove is formed on the outer surface of the auxiliary plate 512, and the second cylinder 513 slides inside the inclined groove. Through the cooperation of the auxiliary components 5, when the convex plate 54 drives the irregular rotating block 59 to move, it touches the first auxiliary block 56, causing the irregular rotating block 59 to squeeze the first spring 510 and drive the first cylinder 58 to move upward so that it is not located inside the sliding column 55. The first auxiliary block 56 drives the moving block 511 to move. The sliding column 55 moves, causing the scraper 515 to move and come into close contact with the fan blades 4. As the scraper 515 moves back through the convex plate 54, it cleans the dust from the surface of the fan blades 4. After cleaning, when the irregular rotating block 59 is pressed by the second auxiliary block 57, the sliding column 55 moves to retract the scraper 515, achieving automatic pop-out and retraction of the scraper 515. This eliminates the need for manual operation during the cleaning process, simplifies the cleaning steps, improves cleaning efficiency, reduces the time operators need to directly contact the inside of the fan or perform complex operations, reduces the safety risks caused by manual operation, and also reduces maintenance time costs. By using unidirectional cleaning instead of back-and-forth cleaning for the fan blades 4, the cleaned area can be prevented from being contaminated again by the uncleaned area, reducing the possibility of secondary pollution.

[0038] The easily detachable component 6 includes a spring plate 61 made of spring steel, a material that maintains its shape under a certain range of force. The end of the spring plate 61 furthest from the shaft 3 is fixedly connected to the outer surface of the fan blade 4. A locking block 62 is fixedly connected to the outer side of the end of the spring plate 61 furthest from the fan blade 4. A mounting groove 63 is fixedly connected to the outer surface of the shaft 3, and a rubber pad 64 is fixedly connected to the inner wall of the mounting groove 63. A baffle plate 65 is fixedly connected to the outer surface of the end of the mounting groove 63 outside the shaft 3, and a slot 66 is formed on the outer surface of the baffle plate 65. The spring plate 61 is V-shaped, and the size of the locking block 62 matches the size of the slot 66. Through the use of the easily detachable component 6, the fan blade 4 can be easily disassembled and replaced when damaged. This design allows for… Replacing the fan blade 4 is very simple and quick, and can be easily done without complicated tools. Quick replacement of the fan blade 4 can reduce downtime caused by damage to the fan blade 4 and improve work efficiency. Since the spring plate 61 is V-shaped, the V-shape can provide a large and uniform elastic restoring force, ensuring that the spring plate 61 can stably play the role of locking or releasing during operation. Its unique shape design provides elasticity while occupying relatively little space, making it suitable for devices with limited space. The rubber pad 64 can increase the friction with the surface of the spring plate 61, thereby improving the gripping force of the easily detachable component 6 and preventing the fan blade 4 from falling off during movement or vibration. It has good elasticity and cushioning performance, and can absorb some of the impact force when the spring plate 61 is in use, reducing damage caused by impact or vibration.

[0039] The following is the complete working process and working principle of the above embodiments:

[0040] In the initial state, the first spring 510 is compressed, the irregular rotating block 59 is located below the second auxiliary block 57, the first cylinder 58 is not located inside the circular hole of the sliding column 55, the second cylinder 513 is located at the bottom end of the inclined groove on the auxiliary plate 512, the second spring 516 is not compressed, the moving block 511 is blocked by the wider end of the second auxiliary block 57, the moving block 511 is located at the end of the sliding groove of the convex plate 54 away from the auxiliary column 52, the spring plate 61 is located inside the rubber pad 64, and one end of the spring plate 61 is located below the blocking plate 65.

[0041] First, when the surface of the fan blade 4 is covered with dust, the operator opens the cylinder when the fan stops working. The cylinder extends, causing the auxiliary column 52 to move closer to the fan blade 4. The auxiliary column 52 causes the two convex plates 54 to slide inside the fixed plate 53. The convex plates 54 move closer to the fan blade 4. When the convex plates 54 move, they cause the sliding column 55, the first cylinder 58, the moving block 511, the irregular rotating block 59, and the first spring 510 to move. When the first cylinder 58, the irregular rotating block 59, and the first spring 510 move away from below the second auxiliary block 57, the first spring 510 resets, causing the irregular rotating block 59 to deflect upward. Since the outer surface of the sliding column 55 has a round hole and the outer surface of the convex plate 54 has a through groove, the operation is more efficient. The irregular rotating block 59 drives the first cylinder 58 to move into the circular hole inside the sliding column 55. The first cylinder 58 slides inside the through groove, and the first cylinder 58 jams the sliding column 55 to prevent it from moving. Since the width of the first auxiliary block 56 is larger than the width of the second auxiliary block 57, the moving block 511 can slide below the second auxiliary block 57. The first auxiliary block 56 can block the moving block 511. Both the first auxiliary block 56 and the second auxiliary block 57 will press against the irregular rotating block 59. The end of the second auxiliary block 57 away from the first auxiliary block 56 has the same width as the first auxiliary block 56, which can also block the moving block 511. When the first cylinder 58, the irregular rotating block 59 and the first spring 510 move to below the first auxiliary block 56, the first... The auxiliary block 56 will squeeze and cause the irregular rotating block 59 to deflect and compress the first spring 510, deforming it. Since the irregular rotating block 59 is rotatably connected to the first cylinder 58, when the irregular rotating block 59 deflects and moves, it drives the first cylinder 58 to move upward without jamming the slide column 55. When the moving block 511 touches the first auxiliary block 56, the moving block 511 blocks the first auxiliary block 56. The convex plate 54 moves, causing the moving block 511 to drive the slide column 55 to move. When the slide column 55 moves, it drives the second cylinder 513 to move. The second cylinder 513 slides inside the inclined groove of the auxiliary plate 512, causing the auxiliary plate 512 to move downward. The movement of the auxiliary plate 512 drives the connecting plate 514 to move. The movement of the connecting plate 514 drives the scraper 515 and the second spring 516 to move. When the first When the two cylinders 513 slide at the top of the inclined groove, the scraper 515 is located on the surface of the fan blade 4 near the rotating shaft 3. The scraper 515 contacts the surface of the fan blade 4, compressing the second spring 516 and deforming it. At this time, the cylinder begins to contract, driving the auxiliary column 52 to move away from the rotating shaft 3. The movement of the auxiliary column 52 drives the convex plate 54 to move, which in turn drives the sliding column 55 to move. The sliding column 55 then drives the auxiliary plate 512 and the connecting plate 514 to move, which in turn drives the scraper 515 to move. The scraper 515 removes dust from the surface of the fan blade 4. By scraping dust from both sides of the fan blade 4 with two scrapers 515, the resistance of the fan blade 4 can be reduced, the fan speed can be increased, and the heat dissipation effect can be enhanced. Scraping away dust allows the fan to work more efficiently.Reducing energy consumption decreases noise generation. The second spring 516 provides cushioning when the scraper 515 contacts the fan blades, reducing the risk of scratches or damage to the fan blade surface. This helps maintain the integrity and performance of the fan blades 4, extending the fan's lifespan. The second spring 516 also ensures a more even distribution of scraping force across the fan blade surface, preventing localized excessive force that could deform or damage the fan blades 4. Furthermore, even force distribution improves dust removal, ensuring thorough cleaning of the fan blades 4.

[0042] When the convex plate 54 moves the first cylinder 58, the irregular rotating block 59, and the first spring 510 away from below the first auxiliary block 56, the first spring 510 resets, causing the irregular rotating block 59 to deflect upwards. The irregular rotating block 59 then moves the first cylinder 58 towards the circular hole inside the sliding column 55. The first cylinder 58 then holds the sliding column 55 in place, preventing it from moving. When the convex plate 54 moves the first cylinder 58, the irregular rotating block 59, and the first spring 510 to below the second auxiliary block 57, the first cylinder... 58 leaves the circular hole of the sliding column 55 without being jammed. At this time, the moving block 511 will touch the end of the second auxiliary block 57 with the same width as the first auxiliary block 56 and block it. When the convex plate 54 moves away from the rotating shaft 3, the moving block 511 drives the sliding column 55 to move closer to the rotating shaft 3. The movement of the sliding column 55 drives the second cylinder 513 to slide from the top to the bottom of the inclined groove of the auxiliary plate 512. During this process, the auxiliary plate 512 moves upward, driving the scraper 515 to move upward. Through the matching of the auxiliary component 5... When used together, the irregular rotating block 59, driven by the convex plate 54, touches the first auxiliary block 56, causing the irregular rotating block 59 to compress the first spring 510 and move the first cylinder 58 upward so that its part is inside the sliding column 55. The first auxiliary block 56 then causes the moving block 511 to move the sliding column 55. The movement of the sliding column 55 causes the scraper 515 to move and come into close contact with the fan blades 4. As the convex plate 54 moves back, the scraper 515 cleans the dust from the surface of the fan blades 4. After cleaning, the irregular rotating block 59 is moved by the second auxiliary block 57. When the pump is pressed, the slide column 55 moves and retracts the scraper 515, realizing the automatic pop-out and retraction of the scraper 515. This can remove dust from both sides of the fan blades 4 at the same time, saving cleaning time and effort, simplifying the cleaning steps, and improving cleaning efficiency. Cleaning both sides at the same time can maintain the balance of the fan and reduce the imbalance caused by cleaning one side. By cleaning the fan blades 4 in one direction instead of back and forth, the cleaned area can be prevented from being contaminated again by the uncleaned area, which can reduce the possibility of such secondary pollution.

[0043] When fan blade 4 is damaged and needs replacement, the operator presses the locking block 62 firmly. The locking block 62 causes one end of the spring plate 61 to move away from below the baffle plate 65, preventing the spring plate 61 from being blocked by the baffle plate 65. At this time, by moving the fan blade 4, the fan blade 4 causes the spring plate 61 to move away from inside the rubber pad 64, and the damaged fan blade 4 is replaced. When installing the fan blade 4, simply insert the spring plate 61 into the rubber pad 64. The spring plate 61 will be squeezed by the baffle plate 65 when inserted. When the spring plate 61 is fully inside the rubber pad 64, the spring plate 61 resets and is locked below the baffle plate 65. The locking block 62 is located inside the slot 66. With the cooperation of the easy-to-remove component 6, the fan blade 4 can be easily removed and replaced when damaged. This design makes the fan blade 4 more durable and easier to install. Replacing the fan blade 4 is very simple and quick, and can be easily completed without complicated tools. Quick replacement of the fan blade 4 can reduce downtime caused by damage to the fan blade 4 and improve work efficiency. Since the spring plate 61 is V-shaped, the V-shape can provide a large and uniform elastic restoring force, ensuring that the spring plate 61 can stably play the role of locking or releasing during operation. Its unique shape design provides elasticity while occupying relatively little space, making it suitable for devices with limited space. The rubber pad 64 can increase the friction with the surface of the spring plate 61, thereby improving the gripping force of the easily detachable component 6 and preventing the fan blade 4 from falling off during movement or vibration. It has good elasticity and cushioning performance, and can absorb some of the impact force when the spring plate 61 is in use, reducing damage caused by impact or vibration.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drive-controlled negative pressure cooling motor, characterized by, The utility model provides an electric motor, including electric motor body (1), the outside fixed connection of electric motor body (1) has ventilation heat dissipation board (2), the inside rotation connection of electric motor body (1) has rotating shaft (3), the outside of rotating shaft (3) is provided with fan blade (4), the inside of electric motor body (1) is provided with the auxiliary assembly (5) for scraping the dust on the surface of fan blade (4), the outside of auxiliary assembly (5) is through with the inside fixed connection of electric motor body (1), the one end of auxiliary assembly (5) away from electric motor body (1) is slidably connected with auxiliary column (52), the inside fixed connection of auxiliary assembly (5) has fixed plate (53), the inside symmetrical sliding connection of fixed plate (53) has convex board (54), the inside of two convex board (54) is slidably connected with slide post (55), the inside of auxiliary assembly (51) is slidably connected with first auxiliary block (56) and second auxiliary block (57) respectively close to two convex board (54), the inner wall rotation of convex board (54) is connected with irregular rotating block (59), the outer surface rotation of irregular rotating block (59) is connected with first cylinder (58), the bottom of irregular rotating block (59) and the outer surface of convex board (54) are fixedly connected with first spring (510), the outer surface of slide post (55) is fixedly connected with moving block (511), the outer surface of convex board (54) is set with sliding slot, moving block (511) is slid in the sliding slot, the inside of slide post (55) is slidably connected with auxiliary plate (512) away from auxiliary column (52), the inside wall of slide post (55) is fixedly connected with second cylinder (513) away from auxiliary column (52), the bottom of auxiliary plate (512) is fixedly connected with connecting plate (514), the inside of connecting plate (514) is slidably connected with scraper (515), the second spring (516) is fixedly connected between scraper (515) and the inner wall of connecting plate (514), the one end of auxiliary column (52) close to fixed plate (53) is fixedly connected with the outer surface of convex board (54), the outer surface of slide post (55) is set with round hole, the outer surface of convex board (54) is set with through groove, the size of first cylinder (58) is adapted with the size of round hole and through groove, and the first cylinder (58) is slid in the inside of through groove and round hole, the outer surface of auxiliary plate (512) is set with inclined groove, and the second cylinder (513) is slid in the inside of inclined groove.

2. The drive-controlled negative pressure cooling motor according to claim 1, characterized in that: The outer part of the rotating shaft (3) is provided with a detachable assembly (6) for facilitating the replacement of the fan blades (4); the detachable assembly (6) comprises spring sheets (61), one end of each spring sheet (61) away from the rotating shaft (3) is fixedly connected with the outer surface of the fan blade (4), the outer side of the other end of each spring sheet (61) away from the fan blade (4) is fixedly connected with a clamping block (62), the outer surface of one end of the rotating shaft (3) is fixedly connected with a mounting groove (63), the inner wall of the mounting groove (63) is fixedly connected with a rubber pad (64), the outer surface of one end of the mounting groove (63) located at the outer part of the rotating shaft (3) is fixedly connected with a blocking plate (65), and the outer surface of the blocking plate (65) is provided with a clamping groove (66).

3. A drive controlled sub-fractional electric motor as claimed in claim 2, wherein: The spring sheets (61) are V-shaped.

4. The drive controlled sub-fractional electric motor of claim 2, wherein: The size of the clamping block (62) is matched with the size of the clamping groove (66).

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