Brushless motor with waterproof structure

Abstract

The application relates to the technical field of brushless motors, and particularly discloses a brushless motor with a waterproof structure. The brushless motor with the waterproof structure comprises a ring-shaped long plate one, a ventilation round hole one is formed in the outer side of the ring-shaped long plate one, a ring-shaped sponge is fixedly connected to the inner side of the ring-shaped long plate one, a ring-shaped long plate two is fixedly connected to the inner side of the ring-shaped sponge, a ring-shaped long plate three is rotatably connected to the inner side of the ring-shaped long plate two through a bearing, and a long round hole is formed in one side of the ring-shaped sponge. The brushless motor with the waterproof structure can absorb and retain liquid close to the motor body in a way of absorption, prevents the liquid close to the motor body from continuously flowing to the surroundings, gradually approaching the motor body and penetrating into the interior in a way of diffusion, covers the motor body in a way of covering through the ring-shaped long plate three with a fixed round rod separating one end of the ring-shaped long plate three from the motor body, and prevents the motor body from being affected by a humid environment and working effectively when the motor body is long-time attached to the waterproof shell.

Description

Technical Field

[0001] This invention relates to the field of brushless motor technology, specifically to a brushless motor with a waterproof structure. Background Technology

[0002] Brushless motors are high-efficiency drive devices that replace traditional brushes and mechanical commutators with electronic commutation technology. Their core principle is to achieve rotation by the interaction between the alternating magnetic field generated by the stator coils and the rotor permanent magnet. Current commutation is precisely controlled by electronic circuits such as Hall sensors or back EMF detection, completely eliminating energy loss, mechanical wear, and electromagnetic interference caused by brush friction. Compared to traditional brushed motors, they have significant advantages: efficiency can reach 85%-95% (20%-30% higher than brushed motors), theoretical lifespan of tens of thousands of hours with no maintenance required, operating noise as low as below 40dB, and power density 30%-50% higher for the same volume. Structurally, they are divided into internal rotor type (suitable for high-speed scenarios such as drones) and external rotor type (suitable for low-speed, high-load scenarios such as new energy vehicle drives).

[0003] Brushless motors used in various fields rarely come into contact with liquids during use, so waterproofing measures are taken for brushless motors. However, most existing waterproofing measures rely on enclosing and covering for waterproofing protection, which means that liquids will gradually seep into the interior when flowing on the surface for a long time. Therefore, we propose a brushless motor with a waterproof structure. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a brushless motor with a waterproof structure, including a motor body, a fixed round rod fixedly connected to the outer side of the motor body, a waterproof mechanism fixedly connected to the end of the fixed round rod away from the motor body, a drainage mechanism fixedly connected to one side of the waterproof mechanism, and a straightening block fixedly connected to one side of the motor body.

[0005] The waterproofing mechanism includes an annular long plate 1, with a ventilation hole on the outer side of the annular long plate 1. An annular sponge is fixedly connected to the inner side of the annular long plate 1. The annular sponge absorbs and retains liquid near the motor body, preventing the liquid near the motor body from continuously flowing and spreading to the surrounding area, gradually approaching the motor body and seeping into the interior. The annular sponge between the annular long plate 2 and the annular long plate 1 absorbs the heat stored in the annular long plate 3 after absorbing moisture, preventing the heat on the outside of the motor body from being difficult to dissipate due to the multiple layers of protective baffles on the outside of the motor body, which would affect the working effect. Annular long plate 2 is fixedly connected to the inner side of the annular sponge. Annular long plate 3 is rotatably connected to the inner side of the annular long plate 2 through a bearing. By setting an annular long plate 3 on the outside of the motor body and separating it at one end with a fixed round rod, the motor body is covered and waterproofed, preventing the working effect from being affected by the humid environment when the motor body and the waterproof shell are in contact for a long time.

[0006] Multiple fixed round rods are provided, and the multiple fixed round rods are distributed between the waterproof mechanism and the motor body. The waterproof mechanism is sleeved on the motor body and is rotatably connected to the motor body through bearings.

[0007] The inner side of the annular long plate three is fixedly connected to one end of the fixed round rod, one side of the annular sponge is fixedly connected to one side of the drainage mechanism, and multiple ventilation holes one are provided, and the multiple ventilation holes one are distributed on the annular long plate one.

[0008] One side of the annular sponge has an elongated hole, the outer side of the second annular plate has a second ventilation hole, the outer side of the third annular plate has a third ventilation hole, one side of the second annular plate is fixedly connected to a side plate, the side of the second annular plate away from the side plate is fixedly connected to a side plate, and the side of the side plate away from the second annular plate is fixedly connected to a concave retainer. By correcting the contact between the correcting retainer and the concave retainer, the second and third ventilation holes are aligned so that the inner area of ​​the third annular plate can be ventilated to the outside for heat dissipation. This prevents the heat in the inner area of ​​the third annular plate from being difficult to dissipate to the outside when the annular sponge is not absorbing water, thus affecting the working effect of the motor. An annular baffle is fixedly connected to the outer side of the second annular plate, and an arc-shaped drain hole is opened on the outer side of the annular baffle.

[0009] Multiple elongated holes are provided, and the multiple elongated holes are distributed on the annular sponge; multiple second ventilation holes are provided, and the multiple second ventilation holes are distributed on the annular long plate; multiple third ventilation holes are provided, and the multiple third ventilation holes are distributed on the annular long plate.

[0010] One side of the annular baffle is fixedly connected to one end of the drainage mechanism, and multiple arc-shaped drainage holes are provided, with the multiple arc-shaped drainage holes distributed on the annular baffle.

[0011] Furthermore, the drainage mechanism includes an annular pressure plate. When the annular sponge is compressed, the water absorbed inside is discharged through the arc-shaped drainage hole. The annular pressure plate compresses and drains the annular sponge, preventing it from being unable to absorb water when saturated for a long time, thus preventing liquid from seeping into the surface of the annular plate through the ventilation holes. A return spring is fixedly connected to one side of the annular pressure plate. The return spring, fixed to the annular sponge on the inner wall of the elongated hole, moderately expands and restores the annular sponge, preventing the annular sponge from needing to be manually pushed to restore after multiple drainages and from overstretching, which affects its use. A long through rod is fixedly connected to the side of the annular pressure plate near the return spring. The long through rod, which passes through the annular baffle, provides internal support to the return spring, preventing uneven force on the return spring and the annular sponge during compression, which could lead to twisting and damage during contraction. An annular connecting plate is fixedly connected to the end of the long through rod away from the annular pressure plate. A cleaning component is fixedly connected to the side of the annular connecting plate near the long through rod. A side connecting rod is fixedly connected to the side of the annular connecting plate near the long through rod. An arc-shaped plug is fixedly connected to the end of the annular connecting plate away from the ring plate. The block stops sealing the annular sponge when it moves back into the arc-shaped drain hole, preventing water from continuously overflowing from the drain hole and flowing along the second surface of the side-mounted clamping plate to a position near the motor body during water absorption. An arc-shaped fixing rod is fixedly connected to the side of the annular connecting plate away from the side-mounted connecting rod. A docking ring plate is fixedly connected to the end of the arc-shaped fixing rod away from the annular connecting plate. A concave pull rod is fixedly connected to one side of the docking ring plate. One side of the annular pressure plate is fixedly connected to one side of the annular sponge. The outer side of the reset spring is fixedly connected to the inner wall of the elongated hole. The cleaning assembly is sleeved on the annular long plate and slidably connected to the annular long plate. The end of the long through rod away from the annular pressure plate passes through the annular baffle and is slidably connected to the annular baffle. Multiple reset springs are provided, and the multiple reset springs are respectively distributed inside the elongated hole. Multiple long through rods are provided, and the multiple long through rods are respectively distributed inside the reset springs. Multiple side connecting rods are provided, and the multiple side connecting rods are distributed on one side of the annular receiving plate at a position aligned with the arc-shaped drain hole.

[0012] Furthermore, the cleaning assembly includes a long connecting rod, with a ring-shaped triangular scraper fixedly connected to its outer side. When the ring-shaped triangular scraper moves, it performs a scraping pre-cleaning of one surface of the ring-shaped long plate, preventing the surface from becoming soaked in liquid and accumulating large amounts of dust particles that could affect heat dissipation. The dust and impurities scraped off by the ring-shaped triangular scraper move along the inclined surface of the scraper to a side area closer to the ring scraper, preventing them from accumulating on one side and easily adhering to the side plate and motor body surface when falling from one side of the ring-shaped long plate. One end of the long connecting rod is fixedly connected to a ring scraper, which moves with the ring scraper... The long connecting rod moves to perform a secondary cleaning on the surface of the annular long plate, preventing some smaller dust particles from being left behind by the annular triangular scraper and becoming difficult to handle. A hard arc brush is fixedly connected to the side of the annular scraper away from the long connecting rod. As the annular scraper moves, the hard arc brush cleans the ventilation hole, preventing dust and impurities from accumulating around the ventilation hole and affecting its ventilation effect if not cleaned in time. The end of the long connecting rod away from the annular scraper is fixedly connected to the side of the annular connecting plate. The annular triangular scraper is sleeved on the annular long plate and slidably connected to it. The annular scraper is sleeved on the annular long plate and slidably connected to it.

[0013] This invention provides a brushless motor with a waterproof structure. It has the following advantages:

[0014] 1. This brushless motor with a waterproof structure uses a ring-shaped sponge to absorb and retain liquid near the motor body, preventing the liquid from continuously flowing and spreading to the surrounding area and gradually approaching the motor body and seeping into the interior. A ring-shaped pressure plate compresses and drains the ring-shaped sponge, preventing the sponge from being unable to absorb water when it is saturated for a long time, which would cause the liquid to seep into the surface of the ring-shaped plate through the ventilation holes. When the ring-shaped triangular scraper moves, it performs a scraping pre-cleaning on the surface of the ring-shaped plate, preventing the surface of the ring-shaped plate from being soaked in liquid, which would cause a large amount of dust particles to accumulate on the surface of the ring-shaped plate and affect the heat dissipation effect.

[0015] 2. This brushless motor with a waterproof structure is equipped with a waterproof mechanism. A ring-shaped sponge absorbs and retains liquid near the motor body, preventing it from spreading and seeping into the motor. A ring-shaped long plate (3) separated by a fixed rod on the outside of the motor body provides waterproofing, preventing the motor body from being affected by moisture during prolonged contact with the waterproof casing. The ring-shaped sponge between the first and second ring-shaped long plates absorbs moisture and also absorbs heat stored within the third ring-shaped long plate, preventing heat loss from multiple layers of protective covering the motor body and affecting performance. A corrective locking block and a concave locking shell align the second and third ventilation holes, allowing ventilation and heat dissipation between the inner and outer areas of the third ring-shaped long plate, preventing heat loss when the sponge is not absorbing moisture and thus affecting motor performance.

[0016] 3. This brushless motor with a waterproof structure is equipped with a drainage mechanism. An annular pressure plate compresses and drains the annular sponge, preventing it from becoming saturated and unable to absorb moisture, thus preventing liquid from seeping into the three surfaces of the annular long plate through the ventilation holes. A long through-rod penetrating the annular baffle inside the return spring provides internal support, preventing uneven stress on the return spring and annular sponge during compression, which could lead to twisting and damage during contraction. A return spring fixed to the annular sponge on the inner wall of the elongated hole allows for moderate expansion and recovery of the annular sponge, preventing the need for manual recovery after multiple drainage cycles and avoiding overstretching that could affect its usability. The arc-shaped plug stops sealing when it moves back into the arc-shaped drain hole, preventing some moisture from overflowing from the arc-shaped drain hole and flowing along the two surfaces of the side-mounted retaining plate to the vicinity of the motor body during moisture absorption.

[0017] 4. This brushless motor with a waterproof structure is equipped with a cleaning component. When the annular triangular scraper moves, it performs a scraping pre-cleaning on the surface of the annular long plate to prevent the surface of the annular long plate from being soaked in liquid, which would cause a large amount of dust particles to accumulate on the surface of the annular long plate and affect the heat dissipation effect. The dust and impurities scraped off by the annular triangular scraper move along the inclined surface of the annular triangular scraper to the side area near the annular scraper plate, preventing the dust and impurities that have been scraped off from accumulating on one side and easily adhering to the side plate and the surface of the motor body when they fall from one side of the annular long plate. The annular scraper plate performs a secondary cleaning on the surface of the annular long plate as the long rod moves, to prevent some smaller dust particles from not being scraped off by the annular triangular scraper plate and being difficult to handle. The hard arc brush that moves with the annular scraper plate cleans the ventilation hole, to prevent dust and impurities from accumulating around the ventilation hole, which would affect the ventilation effect of the ventilation hole if not cleaned in time. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the brushless motor structure with a waterproof feature of the present invention.

[0019] Figure 2 This is a side sectional view of the brushless motor with a waterproof structure according to the present invention.

[0020] Figure 3 This is a schematic diagram of the waterproof mechanism of the present invention;

[0021] Figure 4 This is a partial side sectional view of the waterproof mechanism of the present invention;

[0022] Figure 5 This is a schematic diagram of the drainage mechanism of the present invention;

[0023] Figure 6 This is a side view of the drainage mechanism of the present invention;

[0024] Figure 7 This is a schematic diagram of the cleaning component structure of the present invention;

[0025] Figure 8 This is a schematic diagram of the side structure of the cleaning component of the present invention.

[0026] In the diagram: 1. Motor body; 2. Fixed rod; 3. Waterproofing mechanism; 4. Drainage mechanism; 5. Correction block; 301. Annular long plate one; 302. Ventilation hole one; 303. Annular sponge; 304. Annular long plate two; 305. Annular long plate three; 306. Oblong hole; 307. Ventilation hole two; 308. Ventilation hole three; 309. Side-mounted clamping plate one; 310. Side-mounted clamping plate two; 311. Concave clamping case; 312 313. Annular baffle; 404. Arc-shaped drain hole; 405. Annular pressure plate; 406. Return spring; 407. Long through rod; 408. Annular connecting plate; 409. Cleaning assembly; 4000. Side-mounted connecting rod; 401. Arc-shaped plug; 402. Arc-shaped fixing rod; 403. Connecting ring plate; 410. Concave tie rod; 4051. Long connecting rod; 4052. Annular triangular scraper; 4053. Annular scraper; 4054. Hard arc brush. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1-4The present invention provides a brushless motor with a waterproof structure, including a motor body 1, a fixed round rod 2 fixedly connected to the outside of the motor body 1, a waterproof mechanism 3 fixedly connected to the end of the fixed round rod 2 away from the motor body 1, a drainage mechanism 4 fixedly connected to one side of the waterproof mechanism 3, and a straightening block 5 fixedly connected to one side of the motor body 1.

[0029] The waterproof mechanism 3 includes an annular long plate 301, a ventilation hole 302 on the outer side of the annular long plate 301, an annular sponge 303 fixedly connected to the inner side of the annular long plate 301, an annular long plate 304 fixedly connected to the inner side of the annular sponge 303, and an annular long plate 305 rotatably connected to the inner side of the annular long plate 304 via a bearing.

[0030] Multiple fixed round rods 2 are provided, and the multiple fixed round rods 2 are distributed between the waterproof mechanism 3 and the motor body 1. The waterproof mechanism 3 is sleeved on the motor body 1 and is rotatably connected to the motor body 1 through bearings.

[0031] The inner side of the annular long plate 305 is fixedly connected to one end of the fixed round rod 2, one side of the annular sponge 303 is fixedly connected to one side of the drainage mechanism 4, and multiple ventilation holes 302 are provided, and multiple ventilation holes 302 are distributed on the annular long plate 301.

[0032] One side of the annular sponge 303 has an elongated hole 306, the outer side of the second annular plate 304 has a second ventilation hole 307, the outer side of the third annular plate 305 has a third ventilation hole 308, one side of the second annular plate 304 is fixedly connected to a side-mounted clamping plate 309, the side of the second annular plate 304 away from the side-mounted clamping plate 309 is fixedly connected to a side-mounted clamping plate 310, the side of the side-mounted clamping plate 310 away from the second annular plate 304 is fixedly connected to a concave clamping shell 311, the outer side of the second annular plate 304 is fixedly connected to an annular baffle 312, and the outer side of the annular baffle 312 has an arc-shaped drainage hole 313.

[0033] Multiple elongated holes 306 are provided, and the multiple elongated holes 306 are distributed on the annular sponge 303. Multiple ventilation holes 2 307 are provided, and the multiple ventilation holes 2 307 are distributed on the annular long plate 2 304. Multiple ventilation holes 308 are provided, and the multiple ventilation holes 308 are distributed on the annular long plate 305.

[0034] One side of the annular baffle 312 is fixedly connected to one end of the drainage mechanism 4. Multiple arc-shaped drainage holes 313 are provided and distributed on the annular baffle 312. When in use, the liquid around the motor body 1 will be absorbed and intercepted by the waterproof mechanism 3. By installing the waterproof mechanism 3 on the outside of the motor body 1, the surrounding liquid can be intercepted. At the same time, the drainage mechanism 4 can be pulled to discharge the liquid absorbed by the waterproof mechanism 3 so that the liquid can be absorbed again later.

[0035] Liquid passes through the ventilation hole 302 from the outside of the annular long plate 301 and comes into contact with and is absorbed by the annular sponge 303. When there is liquid around the motor body 1, the ventilation holes 307 on the annular long plate 304 and 308 on the annular long plate 305 are staggered, allowing the annular sponge 303 to absorb and retain the liquid near the motor body 1. The annular long plate 305, separated by a fixed rod 2, covers the motor body 1 for waterproofing. The thermal conductivity of the annular sponge 303 increases after absorbing the liquid. The annular sponge 303 between the annular long plate 304 and the annular long plate 301 absorbs the heat stored in the annular long plate 305 after absorbing the water. When the annular sponge 303 reaches saturation after continuously absorbing water, it pulls to drain the water. Mechanism 4 squeezes the annular sponge 303 to discharge water from the arc-shaped drain hole 313 on the annular baffle 312. When there is no liquid intrusion around the motor body 1, the annular baffle 312 rotates through the rotation of the drainage mechanism 4. The rotation of the annular baffle 312 drives the rotation of the second annular plate 304. The rotation of the second annular plate 304 drives the rotation of the second side-mounted clamping plate 310. The rotation of the second side-mounted clamping plate 310 drives the rotation of the concave clamping shell 311 on one side until the concave clamping shell 311 rotates until the inner wall abuts against the straightening clamping block 5. At this time, the second ventilation hole 307 on the surface of the second annular plate 304 is aligned with the third ventilation hole 308 on the surface of the third annular plate 305. The abutment of the straightening clamping block 5 and the concave clamping shell 311 straightens and aligns the second ventilation hole 307 and the third ventilation hole 308, so that the inner area of ​​the third annular plate 305 can be ventilated to the outside for heat dissipation.

[0036] Please see Figures 1-8This invention provides a brushless motor with a waterproof structure: the drainage mechanism 4 includes an annular pressure plate 401, a return spring 402 fixedly connected to one side of the annular pressure plate 401, a long through rod 403 fixedly connected to the side of the annular pressure plate 401 near the return spring 402, an annular connecting plate 404 fixedly connected to the end of the long through rod 403 away from the annular pressure plate 401, a cleaning component 405 fixedly connected to the side of the annular connecting plate 404 near the long through rod 403, a side connecting rod 406 fixedly connected to the side of the annular connecting plate 404 near the long through rod 403, an arc-shaped block 407 fixedly connected to the end of the side connecting rod 406 away from the annular connecting plate 404, an arc-shaped fixing rod 408 fixedly connected to the side of the annular connecting plate 404 away from the side connecting rod 406, and a connecting ring fixedly connected to the end of the arc-shaped fixing rod 408 away from the annular connecting plate 404. A concave pull rod 410 is fixedly connected to one side of the plate 409 and the annular pressure plate 401. One side of the annular sponge 303 is fixedly connected to one side of the plate. The outer side of the reset spring 402 is fixedly connected to the inner wall of the elongated hole 306. The cleaning component 405 is sleeved on the annular long plate 301 and is slidably connected to the annular long plate 301. The end of the long through rod 403 away from the annular pressure plate 401 passes through the annular baffle 312 and is slidably connected to the annular baffle 312. Multiple reset springs 402 are provided, and the multiple reset springs 402 are distributed inside the elongated hole 306. Multiple long through rods 403 are provided, and the multiple long through rods 403 are distributed inside the reset springs 402. Multiple side connecting rods 406 are provided, and the multiple side connecting rods 406 are distributed on one side of the annular connecting plate 404 and aligned with the arc-shaped drain hole 313.

[0037] The cleaning assembly 405 includes a long connecting rod 4051. An annular triangular scraper 4052 is fixedly connected to the outer side of the long connecting rod 4051. An annular scraper 4053 is fixedly connected to one end of the long connecting rod 4051. A hard arc brush 4054 is fixedly connected to the side of the annular scraper 4053 away from the long connecting rod 4051. The end of the long connecting rod 4051 away from the annular scraper 4053 is fixedly connected to one side of an annular connecting plate 404. The annular triangular scraper 4052 is sleeved on and slidably connected to the annular long plate 301. The annular scraper 4053 is sleeved on and slidably connected to the annular long plate 301. When the annular connecting plate 404 moves away from the motor body 1, it drives the long connecting rod 4051 on one side to move. When in use, when the annular sponge 303 reaches saturation, pulling the concave rod 410 moves the docking ring plate 409. The movement of the docking ring plate 409 moves the arc-shaped fixing rod 408, which in turn moves the annular connecting plate 404. The movement of the annular connecting plate 404 moves the long through rod 403, the side connecting rod 406, and the cleaning component 405 together. The movement of the side connecting rod 406 moves the arc-shaped block 407 on one side together. As the side connecting rod 406 moves, the arc-shaped block 407 releases the blockage of the arc-shaped drain hole 313. As the annular connecting plate 404 moves, the cleaning component 405 scrapes and cleans the outer side of the annular long plate 301. As the annular connecting plate 404 moves, the long through rod 403 moves the ring at one end. When the annular pressure plate 401 moves, it compresses the annular sponge 303 and the return spring 402. As the annular sponge 303 is compressed, the water absorbed inside is discharged through the arc-shaped drainage hole 313. The annular pressure plate 401 compresses and drains the annular sponge 303. A long through-rod 403, penetrating the annular baffle 312, is installed inside the return spring 402 to provide internal support. After the annular sponge 303 has drained, the pull on the concave pull rod 410 is released. At this time, the return spring 402 extends the annular sponge 303 through its stretching force. The return spring 402, fixed to the annular sponge 303 and installed on the inner wall of the elongated hole 306, moderately expands and restores the annular sponge 303. The extension of the return spring 402 pushes... The annular pressure plate 401 moves back. When the annular pressure plate 401 moves back, it drives the arc-shaped block 407 on one side of the annular connecting plate 404 to move back together through the long through rod 403. When the arc-shaped block 407 moves back into the arc-shaped drain hole 313, it stops sealing it. When the annular connecting plate 404 moves away from the motor body 1, it drives the long connecting rod 4051 on one side to move. The movement of the long connecting rod 4051 drives the annular scraper 4053 at one end and the annular triangular scraper 4052 on the outside to move together. When the annular triangular scraper 4052 moves, it performs a scraping pre-cleaning on the surface of the annular long plate 301. The dust and impurities scraped off by the annular triangular scraper 4052 move along the inclined surface of the annular triangular scraper 4052 to the area near the annular scraper 4053.The annular scraper 4053, moving along with the long through rod 403, performs secondary cleaning on the surface of the annular long plate 301. As the annular scraper 4053 moves, it also drives the hard arc brush 4054 on one side to move together, cleaning the ventilation hole 302.

[0038] When the present invention is in operation, the liquid around the motor body 1 will be absorbed and intercepted by the waterproof mechanism 3. The surrounding liquid is intercepted by the waterproof mechanism 3 on the outside of the motor body 1. At the same time, the drainage mechanism 4 can be pulled to discharge the liquid absorbed by the waterproof mechanism 3 so that the liquid can be absorbed again in the future.

[0039] Liquid passes through the ventilation hole 302 from the outside of the annular long plate 301 and comes into contact with the annular sponge 303, where it is absorbed. When liquid is present around the motor body 1, the ventilation holes 307 on the annular long plate 304 and 308 on the annular long plate 305 are staggered, allowing the annular sponge 303 to absorb and retain the liquid near the motor body 1. The annular long plate 305, separated by a fixed rod 2, provides a waterproof covering around the motor body 1. The thermal conductivity of the annular sponge 303 increases after absorbing the liquid. The annular sponge 303 between the annular long plate 304 and the annular long plate 301 absorbs moisture and then... The heat stored in the long plate 305 is absorbed, and when the annular sponge 303 reaches saturation after continuously absorbing water, the drainage mechanism 4 is pulled to squeeze the annular sponge 303, expelling the water from the arc-shaped drainage hole 313 on the annular baffle 312. When there is no liquid intrusion around the motor body 1, the drainage mechanism 4 rotates, causing the annular baffle 312 to rotate. The rotation of the annular baffle 312 causes the annular long plate 304 to rotate, which in turn causes the side-mounted clamping plate 310 to rotate. The rotation of the side-mounted clamping plate 310 causes the concave clamping shell 311 on one side to rotate until the concave clamping shell 311 rotates until its inner wall contacts the straightening clamping block 5, at which point the ventilation hole 307 on the surface of the annular long plate 304 and the... The ventilation holes 308 on the surface of the annular long plate 305 are aligned. The alignment of the ventilation holes 307 and 308 is achieved by correcting the contact between the correction block 5 and the concave retainer 311, allowing the inner area of ​​the annular long plate 305 to ventilate and dissipate heat. When the annular sponge 303 reaches saturation, the concave pull rod 410 is pulled, causing the docking ring plate 409 to move. The movement of the docking ring plate 409 causes the arc-shaped fixing rod 408 to move, which in turn causes the annular connecting plate 404 to move. The movement of the annular connecting plate 404 causes the long through rod 403, the side connecting rod 406, and the cleaning component 405 on one side to move together. The movement of the side connecting rod 406 causes the arc-shaped blocking block 407 on one side to move together. When the connecting rod 406 moves, it releases the blockage of the arc-shaped drain hole 313. As the cleaning component 405 moves with the annular connecting plate 404, it scrapes and cleans the outer side of the annular long plate 301. As the long through rod 403 moves with the annular connecting plate 404, it drives the annular pressure plate 401 at one end to move. When the annular pressure plate 401 moves, it compresses the annular sponge 303 and the return spring 402. When the annular sponge 303 is compressed, the water absorbed inside is discharged from the arc-shaped drain hole 313. The annular pressure plate 401 compresses and drains the annular sponge 303. The long through rod 403, which passes through the annular baffle 312, provides internal support to the return spring 402. After the annular sponge 303 has finished draining, it releases the pull on the concave pull rod 410.At this time, the return spring 402 extends the annular sponge 303 through its stretching force. The return spring 402, fixed to the annular sponge 303 on the inner wall of the elongated hole 306, moderately expands and restores the annular sponge 303. When the return spring 402 extends, it pushes the annular pressure plate 401 back. As the annular pressure plate 401 moves back, the long through rod 403 drives the arc-shaped block 407 on one side of the annular connecting plate 404 back as well. When the arc-shaped block 407 moves back into the arc-shaped drain hole 313, it stops sealing it. When the annular connecting plate 404 moves away from the motor body 1, it drives the long connecting rod 4051 on one side to move. The movement of the long connecting rod 4051 drives... The annular scraper 4053 at one end and the annular triangular scraper 4052 on the outside move together. As the annular triangular scraper 4052 moves, it performs a scraping pre-cleaning of the surface of the annular long plate 301. The dust and impurities scraped off by the annular triangular scraper 4052 move along the inclined surface of the annular triangular scraper 4052 to the area near the annular scraper 4053. The annular scraper 4053, moving with the long through rod 403, performs a secondary cleaning of the surface of the annular long plate 301. As the annular scraper 4053 moves, it also drives the hard arc brush 4054 on one side to move together. The hard arc brush 4054, moving with the annular scraper 4053, cleans the ventilation hole 302.

[0040] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A brushless motor with a waterproof structure, comprising a motor body (1), characterized in that: A fixed round rod (2) is fixedly connected to the outside of the motor body (1). A waterproof mechanism (3) is fixedly connected to one end of the fixed round rod (2) away from the motor body (1). A drainage mechanism (4) is fixedly connected to one side of the waterproof mechanism (3). A straightening block (5) is fixedly connected to one side of the motor body (1). The waterproof mechanism (3) includes an annular long plate one (301), a ventilation hole one (302) is provided on the outer side of the annular long plate one (301), an annular sponge (303) is fixedly connected to the inner side of the annular long plate one (301), an annular long plate two (304) is fixedly connected to the inner side of the annular sponge (303), and an annular long plate three (305) is rotatably connected to the inner side of the annular long plate two (304) through a bearing. The annular sponge (303) has an elongated hole (306) on one side, the annular long plate two (304) has a ventilation hole two (307) on the outer side, the annular long plate three (305) has a ventilation hole three (308) on the outer side, a side plate one (309) is fixedly connected to one side of the annular long plate two (304), a side plate two (310) is fixedly connected to the side of the annular long plate two (304) away from the side plate one (309), a concave clamping shell (311) is fixedly connected to the side of the side plate two (310) away from the annular long plate two (304), an annular baffle (312) is fixedly connected to the outer side of the annular long plate two (304), and an arc-shaped drain hole (313) is opened on the outer side of the annular baffle (312). The drainage mechanism (4) includes an annular pressure plate (401), a return spring (402) is fixedly connected to one side of the annular pressure plate (401), a long through rod (403) is fixedly connected to the side of the annular pressure plate (401) near the return spring (402), an annular connecting plate (404) is fixedly connected to the end of the long through rod (403) away from the annular pressure plate (401), and a cleaning component (405) is fixedly connected to the side of the annular connecting plate (404) near the long through rod (403). A side-mounted connecting rod (406) is fixedly connected to the side of the long through rod (403). An arc-shaped plug (407) is fixedly connected to the end of the side-mounted connecting rod (406) away from the annular connecting plate (404). An arc-shaped fixing rod (408) is fixedly connected to the side of the annular connecting plate (404) away from the side-mounted connecting rod (406). A docking ring plate (409) is fixedly connected to the end of the arc-shaped fixing rod (408) away from the annular connecting plate (404). A concave pull rod (410) is fixedly connected to one side of the docking ring plate (409). One side of the annular pressure plate (401) is fixedly connected to one side of the annular sponge (303). The outer side of the reset spring (402) is fixedly connected to the inner wall of the elongated hole (306). The cleaning component (405) is sleeved on the annular long plate (301) and slidably connected to the annular long plate (301). The end of the long through rod (403) away from the annular pressure plate (401) passes through the annular baffle (312) and slidably connected to the annular baffle (312). Multiple reset springs (402) are provided, and multiple reset springs (402) are respectively distributed inside the elongated hole (306). Multiple long through rods (403) are provided, and multiple long through rods (403) are respectively distributed inside the reset springs (402). Multiple side connecting rods (406) are provided, and multiple side connecting rods (406) are distributed on one side of the annular connecting plate (404) and aligned with the arc-shaped drain hole (313).

2. The brushless motor with a waterproof structure according to claim 1, characterized in that: Multiple fixed round rods (2) are provided, and the multiple fixed round rods (2) are distributed between the waterproof mechanism (3) and the motor body (1). The waterproof mechanism (3) is sleeved on the motor body (1) and is rotatably connected to the motor body (1) through bearings.

3. A brushless motor with a waterproof structure according to claim 1, characterized in that: The inner side of the annular long plate three (305) is fixedly connected to one end of the fixed round rod (2), one side of the annular sponge (303) is fixedly connected to one side of the drainage mechanism (4), and multiple ventilation holes one (302) are provided, and multiple ventilation holes one (302) are distributed on the annular long plate one (301).

4. A brushless motor with a waterproof structure according to claim 1, characterized in that: Multiple elongated holes (306) are provided, and the multiple elongated holes (306) are distributed on the annular sponge (303). Multiple ventilation holes (307) are provided, and the multiple ventilation holes (307) are distributed on the annular long plate (304). Multiple ventilation holes (308) are provided, and the multiple ventilation holes (308) are distributed on the annular long plate (305).

5. A brushless motor with a waterproof structure according to claim 1, characterized in that: One side of the annular baffle (312) is fixedly connected to one end of the drainage mechanism (4), and multiple arc-shaped drainage holes (313) are provided, and the multiple arc-shaped drainage holes (313) are distributed on the annular baffle (312).

6. A brushless motor with a waterproof structure according to claim 1, characterized in that: The cleaning assembly (405) includes a long connecting rod (4051), an annular triangular scraper (4052) is fixedly connected to the outer side of the long connecting rod (4051), an annular scraper (4053) is fixedly connected to one end of the long connecting rod (4051), and a hard arc brush (4054) is fixedly connected to the side of the annular scraper (4053) away from the long connecting rod (4051).

7. A brushless motor with a waterproof structure according to claim 6, characterized in that: The end of the long connecting rod (4051) away from the annular scraper (4053) is fixedly connected to one side of the annular connecting plate (404). The annular triangular scraper (4052) is sleeved on the annular long plate (301) and slidably connected to the annular long plate (301). The annular scraper (4053) is sleeved on the annular long plate (301) and slidably connected to the annular long plate (301).

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