Heat dissipation dustproof motor and motor end cover

Abstract

The invention discloses a heat dissipation dustproof motor and a motor end cover. The motor comprises a shell, an end cover part, a motor shaft, a rotor and a stator, a temperature sensor is mounted in the shell; the end cover part comprises a fixed cylinder and a movable cylinder connected with the fixed cylinder through an electric telescopic rod, a first filter screen is mounted at the fixed cylinder, a second filter screen is mounted at the movable cylinder, and a plurality of air outlet holes are formed in the end part of the shell. According to the motor and the motor end cover, the multiple filter screens can better realize dust prevention, impurities such as dust are effectively prevented from entering the motor, and the service life of the motor is prolonged. When the temperature is high, heat dissipation airflow can be increased, the air inlet efficiency is improved, and therefore the better heat dissipation effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and more particularly to a heat-dissipating and dust-proof motor and a motor end cover. Background Art

[0002] In fields such as new energy vehicles, automated equipment, and mechanical transmission, motors, as core components of drive systems, play a crucial role. They not only convert and transmit energy but also directly impact the performance, efficiency, and reliability of the equipment. Motor end covers, as a crucial component of the motor structure, have a primary function of dust prevention, protecting the motor's interior from the intrusion of impurities such as dust and moisture.

[0003] Existing motors have a relatively simple electrode end cap structure, resulting in poor dust protection. In harsh or highly polluted operating environments, this simple dustproof structure is unable to effectively block the penetration of fine particles. However, excessively strengthening dust protection can lead to poor heat dissipation. The motor generates significant heat during operation, requiring timely removal through effective heat dissipation pathways to prevent performance degradation or even damage caused by overheating. This heat dissipation issue is particularly prominent under high loads or long periods of continuous operation, making it difficult to meet the motor's cooling requirements. Summary of the Invention

[0004] The present invention aims to overcome the defects of the prior art and provides a heat dissipating and dustproof motor and a motor end cover.

[0005] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: a motor, comprising a shell, an end cover, a motor shaft, a rotor and a stator; a temperature sensor is installed in the shell; the end cover comprises a fixed cylinder and a movable cylinder connected to the fixed cylinder by an electric telescopic rod, a first filter is installed at the fixed cylinder, a second filter is installed at the movable cylinder, and the end of the shell has multiple air outlet holes.

[0006] Furthermore, the fixed cylinder has a strip-shaped limiting rail; the movable cylinder has a strip-shaped limiting groove.

[0007] Thus, the mutual displacement between the fixed cylinder and the movable cylinder makes the fit more stable.

[0008] Furthermore, the first filter screen and the second filter screen are parallel to each other.

[0009] Furthermore, the rotor is installed on the motor shaft, and the stator is installed in the housing.

[0010] Furthermore, the fixing cylinder is fixedly connected to the housing.

[0011] This facilitates the connection and installation between the end cover and the shell.

[0012] The transmission gear of the present invention is a gear which is connected to the first end of the shaft by a toothed connection, and the toothed connection is connected with the toothed connection of the first and second gears, and the toothed connection is connected with the toothed connection of the first and second gears.

[0013] Furthermore, a plurality of connecting plates pass through the first filter screen.

[0014] Furthermore, the first filter screen includes a first outer annular portion, a first inner annular portion and a plurality of first grid bars.

[0015] Furthermore, a plurality of connecting plates pass through the inner annular portion.

[0016] Furthermore, the cross section of the connecting plate is arc-shaped.

[0017] Furthermore, the second filter screen includes a second annular portion and a plurality of second grid bars.

[0018] Furthermore, a limiting block is fixed at the end of the strip-shaped groove, and the limiting block has a plurality of second teeth that can mesh with the gear.

[0019] Furthermore, the first arc-shaped rod connects the two arc-shaped rod portions, and the second arc-shaped rod connects the two arc-shaped rod portions.

[0020] Furthermore, the rotating shaft is connected to the fixed cylinder through a rotating shaft bearing.

[0021] In some embodiments, the rotating shaft is connected to the fixing cylinder through a rubber sleeve.

[0022] This increases the damping of the rotation of the rotating shaft, making the rotation of the rotating shaft more stable.

[0023] Furthermore, each arc-shaped rod portion is equipped with a plurality of third grid bars.

[0024] Furthermore, the plurality of first rotating blades are distributed in a circular shape with equal intervals; and the plurality of second rotating blades are distributed in a circular shape with equal intervals.

[0025] Furthermore, the electric telescopic rod can be at a first length and a second length, the second length being greater than the first length; when the electric telescopic rod is at the first length, the rotating filter is parallel to the first filter, and the two gears are respectively engaged with the second teeth at the two limit blocks; when the electric telescopic rod is at the second length, the rotating filter is perpendicular to the first filter, the frustum-shaped block abuts against the frustum-shaped abutment surface, and the two gears are respectively engaged with the first teeth at the two strip grooves.

[0026] Furthermore, a reset unit is installed between the rotating shaft and the fixed cylinder, and when there is no external force, the rotating filter screen is parallel to the first filter screen.

[0027] Furthermore, the reset unit is a spring.

[0028] Furthermore, it also includes a third bearing installed on multiple connecting plates and a fourth bearing installed on the rotating rod; the first arc-shaped rod has a first arc-shaped elastic pad, and the second arc-shaped rod has a second arc-shaped elastic pad; when the electric telescopic rod is at the second length, the first arc-shaped elastic pad abuts the outer ring of the third bearing, and the second arc-shaped elastic pad abuts the outer ring of the fourth bearing.

[0029] Therefore, the rotating filter screen is more stable due to the abutment between the first arc-shaped elastic pad and the second arc-shaped elastic pad.

[0030] Furthermore, the fixed cylinder includes a first flange, a first annular cylindrical enclosing plate fixedly connected to the first flange, a frustum-shaped second enclosing plate connected to the first enclosing plate, a third annular cylindrical enclosing plate connected to the second enclosing plate, and two mounting blocks fixedly connected to the second enclosing plate. The electric telescopic rod has two and is fixedly connected to the two mounting blocks respectively.

[0031] Furthermore, the movable cylinder includes a fourth annular cylindrical enclosing plate, a second flange connected to the fourth enclosing plate, and a fifth annular cylindrical enclosing plate fixedly connected to the second flange. The fourth enclosing plate has two strip openings, each of which is connected to a strip cover with a U-shaped cross-section. One end of the strip cover is open, and the other end is connected to an end baffle. The strip opening and the space inside the strip cover form the strip groove, and the limit block is fixedly connected to the end baffle.

[0032] Furthermore, the first filter screen is fixed at the third surrounding plate; and the second filter screen is fixed at the fifth surrounding plate.

[0033] Furthermore, a plurality of air inlet holes are located on the third surrounding plate.

[0034] Therefore, when the electric telescopic rod is at the second length, it is convenient for more air to enter through the air inlet hole.

[0035] Furthermore, the shell has a plurality of first convex plates distributed in a ring shape with equal intervals, the first flange has a plurality of second convex plates distributed in a ring shape with equal intervals, and the number of first convex plates is equal to the number of second convex plates; the shell is installed with a plurality of first convex blocks distributed in a ring shape with equal intervals, and the first convex blocks have first mounting through holes.

[0036] Furthermore, the first enclosing plate has a plurality of second protrusions distributed in a ring shape with equal intervals, and the second protrusions have second mounting through holes.

[0037] This makes it easier to fix and install the motor.

[0038] Furthermore, the first convex plate has a first bolt hole, and the second convex plate has a second bolt hole.

[0039] Furthermore, the housing and the fixing cylinder are fixedly connected by bolts and nuts.

[0040] Furthermore, the shell includes an end shell and a surrounding shell fixedly connected to the end shell, multiple air outlets are located at the end shell, the end shell has a motor shaft through hole, and a motor shaft bearing is connected between the motor shaft through hole and the motor shaft.

[0041] Furthermore, there are multiple locking bolts distributed in a ring shape with equal intervals, and the ends of the locking bolts abut against the motor shaft.

[0042] The present application also discloses a motor end cover, comprising a fixed cylinder and a movable cylinder connected to the fixed cylinder through an electric telescopic rod, a first filter screen is installed at the fixed cylinder, a second filter screen is installed at the movable cylinder, and a plurality of air outlet holes are provided at the end of the shell.

[0043] Furthermore, the first filter screen and the second filter screen are parallel to each other.

[0044] The transmission gear of the present invention is a gear which has a first end in contact with the first gear and a second end in contact with the gear of the first gear, and the gear has a first end in contact with the first gear of the first gear and a second end in contact with the gear of the first gear.

[0045] Furthermore, a limiting block is fixed at the end of the strip-shaped groove, and the limiting block has a plurality of second teeth that can mesh with the gear.

[0046] Furthermore, the first arc-shaped rod connects the two arc-shaped rod portions, and the second arc-shaped rod connects the two arc-shaped rod portions.

[0047] Furthermore, the rotating shaft is connected to the fixed cylinder through a rotating shaft bearing.

[0048] Furthermore, the rotating tube is provided with a plurality of locking bolts, and the rotating tube can allow the motor shaft to be inserted.

[0049] Furthermore, each arc-shaped rod portion is equipped with a plurality of third grid bars.

[0050] Furthermore, the plurality of first rotating blades are distributed in a circular shape with equal intervals; and the plurality of second rotating blades are distributed in a circular shape with equal intervals.

[0051] Furthermore, it also includes a third bearing installed at multiple connecting plates and a fourth bearing installed at the rotating rod; a first arc-shaped elastic pad is provided at the first arc-shaped rod, and a second arc-shaped elastic pad is provided at the second arc-shaped rod; the electric telescopic rod can be at a first length and a second length, and the second length is greater than the first length; when the electric telescopic rod is at the first length, the rotating filter is parallel to the first filter, and the two gears are respectively engaged with the second teeth at the two limit blocks; when the electric telescopic rod is at the second length, the rotating filter is perpendicular to the first filter, the frustum-shaped block abuts the frustum-shaped abutment surface, the two gears are respectively engaged with the first teeth at the two strip grooves, the first arc-shaped elastic pad abuts the outer ring of the third bearing, and the second arc-shaped elastic pad abuts the outer ring of the fourth bearing.

[0052] Furthermore, a reset unit is installed between the rotating shaft and the fixed cylinder, and when there is no external force, the rotating filter screen is parallel to the first filter screen.

[0053] Furthermore, the fixed cylinder includes a first flange, a first annular cylindrical enclosing plate fixedly connected to the first flange, a frustum-shaped second enclosing plate connected to the first enclosing plate, a third annular cylindrical enclosing plate connected to the second enclosing plate, and two mounting blocks fixedly connected to the second enclosing plate. The electric telescopic rod has two and is fixedly connected to the two mounting blocks respectively.

[0054] Furthermore, the movable cylinder includes a fourth annular cylindrical enclosing plate, a second flange connected to the fourth enclosing plate, and a fifth annular cylindrical enclosing plate fixedly connected to the second flange. The fourth enclosing plate has two strip openings, each of which is connected to a strip cover with a U-shaped cross-section. One end of the strip cover is open, and the other end is connected to an end baffle. The strip opening and the space inside the strip cover form the strip groove, and the limit block is fixedly connected to the end baffle.

[0055] Furthermore, the first filter screen is fixed at the third surrounding plate; and the second filter screen is fixed at the fifth surrounding plate.

[0056] Furthermore, a plurality of air inlet holes are located on the third surrounding plate.

[0057] Beneficial effects:

[0058] 1. The motor and motor end cover of the present application have multiple filters that can better prevent dust, effectively prevent dust and other impurities from entering the motor, and extend the service life of the motor.

[0059] 2. The motor and motor end cover of the present application can increase the heat dissipation airflow and improve the air intake efficiency when the temperature is high, thereby achieving better heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 This is a schematic diagram of a dust-proof motor;

[0061] Figure 2 This is an enlarged view of area A;

[0062] Figure 3 It is a schematic diagram of the electric telescopic rod at a first length;

[0063] Figure 4 This is an enlarged view of area B;

[0064] Figure 5 It is a schematic diagram of the electric telescopic rod at the second length;

[0065] Figure 6 This is an enlarged view of area C;

[0066] Figure 7 This is a schematic diagram of the separation of the housing and the motor end cover;

[0067] Figure 8 This is an enlarged view of area D;

[0068] Figure 9 This is a first-person perspective diagram of the motor end cover component separation;

[0069] Figure 10 This is an enlarged view of area E;

[0070] Figure 11 This is an enlarged view of area F;

[0071] Figure 12 This is an enlarged view of area G;

[0072] Figure 13 This is a schematic diagram showing the separation of the motor end cover components from the first perspective;

[0073] Figure 14 This is an enlarged view of the H region;

[0074] Figure 15 This is an enlarged view of area I.

[0075] Explanation of reference numerals: housing 1; end shell 1.1; air outlet 1.1.1; surrounding shell 1.2; first convex plate 1.3; first protrusion 1.4; motor shaft 2; fixing cylinder 3; first radial rod 3.1; first fixing ring 3.2; rotating tube 3.3; first rotor blade 3.4; locking bolt 3.5; connecting plate 3.6; third bearing 3.6.1; rotating ring 3.7; air inlet 3.8; first flange 3.9; second convex plate 3.9.1; first surrounding plate 3.10; second surrounding plate 3.11; third surrounding plate 3.12; mounting block 3.13; second protrusion 3.14; movable cylinder 4; second radial rod 4.1; second fixing ring 4.2; rotating Block 4.3; second rotor blade 4.4; rotating rod 4.5; fourth bearing 4.5.1; frustum-shaped block 4.6; strip groove 4.7; first tooth 4.8; second tooth 4.9; fourth enclosing plate 4.10; second flange 4.11; fifth enclosing plate 4.12; strip cover 4.13; end baffle 4.14; electric telescopic rod 5; first filter 6; first outer annular portion 6.1; first inner annular portion 6.2; first grille bar 6.3; second filter 7; second annular portion 7.1; second grille bar 7.2; curved rod portion 8.1; rotating shaft 8.1.1; first curved rod 8.2; second curved rod 8.3; gear 8.4; third grille bar 8.5. DETAILED DESCRIPTION

[0076] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0077] Example 1

[0078] Example 1 discloses a heat-dissipating and dust-proof motor, comprising a shell 1, an end cover 2, a motor shaft 2, a rotor connected to the motor shaft 2, and a stator installed in the shell 1; a temperature sensor is installed in the shell 1; the end cover 2 comprises a fixed cylinder 3 fixedly connected to the shell 1 and a movable cylinder 4 connected to the fixed cylinder 3 via an electric telescopic rod 5, a first filter 6 is installed at the fixed cylinder 3, a second filter 7 is installed at the movable cylinder 4, and the end of the shell 1 has multiple air outlet holes 1.1.1. The fixed cylinder 3 is connected to a first fixed ring 3.2 through a plurality of first radial rods 3.1, and the first fixed ring 3.2 is installed with a rotating tube 3.3 through a first bearing, and a plurality of first rotating blades 3.4 are installed on the rotating tube 3.3. One end of the motor shaft 2 is inserted into the rotating tube 3.3 and is locked and fixed to the rotating tube 3.3 by a locking bolt 3.5; the rotating tube 3.3 is connected to a rotating ring 3.7 with a frustum-shaped abutting surface through a plurality of connecting plates 3.6; the movable cylinder 4 is connected to a second fixed ring 4.2 through a plurality of second radial rods 4.1, and the second fixed ring 4.2 is installed with a rotating block 4.3 through a second bearing, and a plurality of second rotating blades 4.4 are installed on the rotating block 4.3, and the rotating block 4.3 is connected to a frustum-shaped block 4.6 capable of abutting the frustum-shaped abutting surface through a rotating rod 4.5; the fixed cylinder 3 The fixed cylinder 3 is provided with a plurality of air inlet holes 3.8. A rotating filter is also mounted on the fixed cylinder 3. The rotating filter comprises two curved rods 8.1, a first curved rod 8.2 connecting the two curved rods 8.1, and a second curved rod 8.3 connecting the two curved rods 8.1. The curved rods 8.1 are connected to a rotating shaft 8.1.1, which is connected to the fixed cylinder 3 via a rotating shaft bearing. A gear 8.4 is connected to the end of the rotating shaft. The movable cylinder 4 has two strip grooves 4.7, each of which has a row of first teeth 4.8 that can mesh with the gears 8.4. The two gears 8.4 are respectively located in the two strip grooves 4.7. A limit block is fixed to the end of each strip groove 4.7, each of which has a plurality of second teeth 4.9 that can mesh with the gears 8.4. Each curved rod 8.1 is mounted with a plurality of third grille bars 8.5. Multiple first rotating blades 3.4 are distributed in a circular pattern with equal spacing; multiple second rotating blades 4.4 are distributed in a circular pattern with equal spacing. The electric telescopic rod 5 can be in a first length and a second length, with the second length being greater than the first length. When the electric telescopic rod 5 is in the first length, the rotating filter is parallel to the first filter 6, and the two gears 8.4 respectively engage with the second teeth 4.9 at the two limit blocks. When the electric telescopic rod 5 is in the second length, the rotating filter is perpendicular to the first filter 6, the frustum-shaped block 4.6 abuts the frustum-shaped abutment surface, and the two gears 8.4 respectively engage with the first teeth 4.8 at the two strip grooves 4.7. A reset unit is installed between the rotating shaft 8.1.1 and the fixed cylinder 3. In the absence of external force, the rotating filter is parallel to the first filter 6.The motor also includes a third bearing 3.6.1 installed at the multiple connecting plates 3.6 and a fourth bearing 4.5.1 installed at the rotating rod 4.5; the first arc rod 8.2 has a first arc-shaped elastic pad, and the second arc rod 8.3 has a second arc-shaped elastic pad; when the electric telescopic rod 5 is at the second length, the first arc-shaped elastic pad abuts the outer ring of the third bearing 3.6.1, and the second arc-shaped elastic pad abuts the outer ring of the fourth bearing 4.5.1.

[0079] The fixing cylinder 3 includes a first flange 3.9, a first annular cylindrical enclosing plate 3.10 fixedly connected to the first flange 3.9, a second frustum-shaped enclosing plate 3.11 connected to the first enclosing plate 3.10, a third annular cylindrical enclosing plate 3.12 connected to the second enclosing plate 3.11, and two mounting blocks 3.13 fixedly connected to the second enclosing plate 3.11. The electric telescopic rod 5 has two mounting blocks 3.13 fixedly connected to each of the two mounting blocks 3.13. The movable cylinder 4 includes a fourth annular cylindrical enclosing plate 4.10, a second flange 4.11 connected to the fourth enclosing plate 4.10, and a fifth annular cylindrical enclosing plate 4.12 fixedly connected to the second flange 4.11. The fourth enclosing plate 4.10 has two strip openings, each of which is connected to a strip cover 4.13 with a U-shaped cross-section. One end of the strip cover 4.13 is open, and the other end is connected to an end baffle 4.14. The strip opening and the space within the strip cover 4.13 form the strip groove 4.7, and the limit block is fixedly connected to the end baffle 4.14; the first filter 6 is fixed to the third enclosing plate 3.12; the second filter 7 is fixed to the fifth enclosing plate 4.12; and a plurality of air inlet holes 3.8 are located on the third enclosing plate 3.12. The housing 1 has a plurality of first convex plates 1.3 distributed in an annular pattern with equal spacing, and the first flange 3.9 has a plurality of second convex plates 3.9.1 distributed in an annular pattern with equal spacing, the number of first convex plates 1.3 being equal to the number of second convex plates 3.9.1; the housing 1 is mounted with a plurality of first convex blocks 1.4 distributed in an annular pattern with equal spacing, the first convex blocks 1.4 having first mounting holes; the first surrounding plate 3.10 has a plurality of second convex blocks 3.14 distributed in an annular pattern with equal spacing, the second convex blocks 3.14 having second mounting holes. The housing 1 includes an end shell 1.1 and a surrounding shell 1.2 fixedly connected to the end shell 1.1, a plurality of air outlet holes 1.1.1 being located in the end shell 1.1, the end shell 1.1 having a motor shaft through-hole, a motor shaft bearing being connected between the motor shaft through-hole and the motor shaft 2; the locking bolts 3.5 are multiple and distributed in an annular pattern with equal spacing, the ends of the locking bolts 3.5 abutting the motor shaft 2.

[0080] Example 2

[0081] Example 2 discloses a heat-dissipating and dust-proof motor end cover, comprising a fixed cylinder 3 and a movable cylinder 4 connected to the fixed cylinder 3 via an electric telescopic rod 5, a first filter screen 6 being installed at the fixed cylinder 3, a second filter screen 7 being installed at the movable cylinder 4, and a plurality of air outlet holes 1.1.1 being provided at the end of the shell 1. The fixed cylinder 3 is connected to a first fixed ring 3.2 via a plurality of first radial rods 3.1, the first fixed ring 3.2 is mounted with a rotating tube 3.3 via a first bearing, a plurality of first rotating blades 3.4 are mounted on the rotating tube 3.3, and a locking bolt 3.5 is provided on the rotating tube 3.3; the rotating tube 3.3 is connected to a rotating ring 3.7 having a frustum-shaped abutting surface via a plurality of connecting plates 3.6; the movable cylinder 4 is connected to a second fixed ring 4.2 via a plurality of second radial rods 4.1, the second fixed ring 4.2 is mounted with a rotating block 4.3 via a second bearing, a plurality of second rotating blades 4.4 are mounted on the rotating block 4.3, and the rotating block 4.3 is connected to a frustum-shaped block 4.6 capable of abutting the frustum-shaped abutting surface via a rotating rod 4.5; the fixed cylinder 3 has a plurality of air inlet holes 3.8; The fixed cylinder 3 is also equipped with a rotating filter. The rotating filter comprises two curved rods 8.1, a first curved rod 8.2 connecting the two curved rods 8.1, and a second curved rod 8.3 connecting the two curved rods 8.1. The curved rods 8.1 are connected to a rotating shaft 8.1.1, which is connected to the fixed cylinder 3 via a rotating shaft bearing. The end of the rotating shaft is connected to a gear 8.4. The movable cylinder 4 has two strip grooves 4.7, each of which has a row of first teeth 4.8 that can mesh with the gears 8.4. The two gears 8.4 are respectively located in the two strip grooves 4.7. The ends of the strip grooves 4.7 are fixed with limit blocks, each of which has a plurality of second teeth 4.9 that can mesh with the gears 8.4. Each curved rod 8.1 is equipped with a plurality of third grille bars 8.5. The plurality of first rotor blades 3.4 are distributed in a circular pattern with equal spacing; the plurality of second rotor blades 4.4 are distributed in a circular pattern with equal spacing.

[0082] The motor end cover also includes a third bearing 3.6.1 installed at the multiple connecting plates 3.6 and a fourth bearing 4.5.1 installed at the rotating rod 4.5; the first arc rod 8.2 has a first arc-shaped elastic pad, and the second arc rod 8.3 has a second arc-shaped elastic pad; the electric telescopic rod 5 can be at a first length and a second length, the second length being greater than the first length; when the electric telescopic rod 5 is at the first length, the rotating filter is parallel to the first filter 6, and the two gears 8.4 are respectively engaged with the second teeth 4.9 at the two limit blocks; when the electric telescopic rod 5 is at the second length, the rotating filter is perpendicular to the first filter 6, the frustum-shaped block 4.6 abuts the frustum-shaped abutment surface, the two gears 8.4 are respectively engaged with the first teeth 4.8 at the two strip grooves 4.7, the first arc-shaped elastic pad abuts the outer ring of the third bearing 3.6.1, and the second arc-shaped elastic pad abuts the outer ring of the fourth bearing 4.5.1. A reset unit is installed between the rotating shaft 8.1.1 and the fixed cylinder 3. When no external force is applied, the rotating filter screen is parallel to the first filter screen 6. The fixed cylinder 3 includes a first flange 3.9, a first annular cylindrical enclosure plate 3.10 fixedly connected to the first flange 3.9, a second frustum-shaped enclosure plate 3.11 connected to the first enclosure plate 3.10, a third annular cylindrical enclosure plate 3.12 connected to the second enclosure plate 3.11, and two mounting blocks 3.13 fixedly connected to the second enclosure plate 3.11. The electric telescopic rod 5 has two mounting blocks 3.13 fixedly connected to each of the two mounting blocks. The movable cylinder 4 includes a fourth annular cylindrical enclosing plate 4.10, a second flange 4.11 connected to the fourth enclosing plate 4.10, and a fifth annular cylindrical enclosing plate 4.12 fixedly connected to the second flange 4.11. The fourth enclosing plate 4.10 has two strip openings, each of which is connected to a strip cover 4.13 with a U-shaped cross-section. One end of the strip cover 4.13 is open, and the other end is connected to an end baffle 4.14. The strip opening and the space within the strip cover 4.13 form the strip groove 4.7, and the limit block is fixedly connected to the end baffle 4.14; the first filter 6 is fixed to the third enclosing plate 3.12; the second filter 7 is fixed to the fifth enclosing plate 4.12; and a plurality of air inlet holes 3.8 are located on the third enclosing plate 3.12.

[0083] The motor and corresponding motor end cap of the present application can be in a first state (the electric telescopic rod is at a first length), whereby the frustum-shaped block and the frustum-shaped abutment surface are not in contact, so that the rotating ring does not drive the frustum-shaped block to rotate, and the second rotor blade does not rotate under the drive of the motor shaft. In addition, the air inlet at the fixed cylinder is blocked, resulting in a small air flow. Furthermore, the first filter, the rotating filter, and the second filter are all in use, thereby achieving a triple dust filtering effect and a better dustproof effect. Furthermore, the second teeth at the limit block abut against the drive gear, thereby limiting the gear, so that the rotating filter is parallel to the first filter, making the position more stable.

[0084] When the temperature sensor detects a high temperature, requiring a stronger heat dissipation effect, the motor end cover can be placed in the second state (the electric telescopic rod is at the second length). Driven by the meshing of the gear and the plurality of first teeth, the rotating filter is positioned horizontally and perpendicular to the first filter. The frustum-shaped block and the frustum-shaped abutting surfaces of the rotating ring abut, causing the motor shaft to simultaneously drive the rotating tube and the rotating rod to rotate. The first and second rotor blades are then simultaneously used to admit air, and the air inlet is exposed, resulting in stronger air intake and better heat dissipation. Furthermore, the first curved elastic pad abuts the outer ring of the third bearing, and the second curved elastic pad abuts the outer ring of the fourth bearing. The meshing of the gear and the first teeth, and the tight contact of the first and second curved elastic pads, stabilize the rotating filter, achieving better heat dissipation. The first and second filters still function as a dust barrier, achieving both dust protection and heat dissipation.

[0085] Although the present invention has been illustrated and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made to the present invention without departing from the scope of the present invention as defined by the claims.

Claims

1. A heat dissipation and dust-proof motor, characterized in that: It includes a shell, an end cover, a motor shaft, a rotor and a stator; a temperature sensor is installed in the shell; the end cover includes a fixed cylinder and a movable cylinder connected to the fixed cylinder through an electric telescopic rod, a first filter is installed on the fixed cylinder, and a second filter is installed on the movable cylinder, and the end of the shell has multiple air outlets.

2. The heat dissipating and dust-proof motor according to claim 1, characterized in that: The fixed cylinder is connected to a first fixing ring through a plurality of first radial rods, the first fixing ring is installed with a rotating tube through a first bearing, and a plurality of first rotating blades are installed on the rotating tube, one end of the motor shaft is inserted into the rotating tube and is locked and fixed to the rotating tube through a locking bolt; the rotating tube is connected to a rotating ring with a frustum-shaped abutting surface through a plurality of connecting plates; the movable cylinder is connected to a second fixing ring through a plurality of second radial rods, the second fixing ring is installed with a rotating block through a second bearing, a plurality of second rotating blades are installed on the rotating block, and the rotating block is connected to the rotating rod through It is connected to a frustum-shaped block that can abut against the frustum-shaped abutment surface; the fixed cylinder has multiple air inlet holes; the fixed cylinder is also installed with a rotating filter, which includes two arc-shaped rods, a first arc-shaped rod and a second arc-shaped rod, the arc-shaped rods are connected to a rotating shaft, the ends of the rotating shaft are connected to gears, the movable cylinder has two strip grooves, the strip grooves have a row of first teeth that can engage with the gears, and the two gears are respectively located in the two strip grooves; the ends of the strip grooves are fixed with limiting blocks, and the limiting blocks have multiple second teeth that can engage with the gears.

3. The heat dissipating and dustproof motor according to claim 2, characterized in that: The electric telescopic rod can be at a first length and a second length, and the second length is greater than the first length; when the electric telescopic rod is at the first length, the rotating filter is parallel to the first filter, and the two gears are respectively engaged with the second teeth at the two limit blocks; when the electric telescopic rod is at the second length, the rotating filter is perpendicular to the first filter, the frustum-shaped block abuts against the frustum-shaped abutment surface, and the two gears are respectively engaged with the first teeth at the two strip grooves.

4. The heat dissipating and dustproof motor according to claim 3, characterized in that: It also includes a third bearing installed on multiple connecting plates and a fourth bearing installed on the rotating rod; a first arc-shaped elastic pad is provided on the first arc-shaped rod, and a second arc-shaped elastic pad is provided on the second arc-shaped rod; when the electric telescopic rod is at the second length, the first arc-shaped elastic pad abuts the outer ring of the third bearing, and the second arc-shaped elastic pad abuts the outer ring of the fourth bearing.

5. The heat dissipating and dustproof motor according to claim 2, characterized in that: The fixed cylinder includes a first flange, a first annular cylindrical enclosing plate fixedly connected to the first flange, a frustum-shaped second enclosing plate connected to the first enclosing plate, a third annular cylindrical enclosing plate connected to the second enclosing plate, and two mounting blocks fixedly connected to the second enclosing plate, the electric telescopic rod has two and is respectively fixedly connected to the two mounting blocks; the movable cylinder includes a fourth annular cylindrical enclosing plate, a second flange connected to the fourth enclosing plate, and a fifth annular cylindrical enclosing plate fixedly connected to the second flange, the fourth enclosing plate has two strip openings, each of the strip openings is connected to a strip cover with a U-shaped cross-section, one end of the strip cover is open, and the other end is connected to an end baffle, the strip opening and the space inside the strip cover form the strip groove, and the limit block is fixedly connected to the end baffle; the first filter is fixed to the third enclosing plate; the second filter is fixed to the fifth enclosing plate; and multiple air inlets are located at the third enclosing plate.

6. The heat dissipating and dust-proof motor according to claim 5, characterized in that: The shell has a plurality of first convex plates distributed in a ring shape with equal intervals, the first flange has a plurality of second convex plates distributed in a ring shape with equal intervals, and the number of first convex plates is equal to the number of second convex plates; the shell is installed with a plurality of first convex blocks distributed in a ring shape with equal intervals, and the first convex blocks have first mounting through holes; the first surrounding plate has a plurality of second convex blocks distributed in a ring shape with equal intervals, and the second convex blocks have second mounting through holes.

7. The heat dissipating and dust-proof motor according to claim 1, characterized in that: The shell includes an end shell and a surrounding shell fixedly connected to the end shell, multiple air outlets are located at the end shell, the end shell has a motor shaft through-hole, and a motor shaft bearing is connected between the motor shaft through-hole and the motor shaft; the locking bolts are multiple and distributed in a ring with equal intervals, and the ends of the locking bolts abut the motor shaft.

8. A heat dissipation and dustproof motor end cover, characterized in that: It includes a fixed cylinder and a movable cylinder connected to the fixed cylinder through an electric telescopic rod. The fixed cylinder is installed with a first filter screen, the movable cylinder is installed with a second filter screen, and the end of the shell is provided with multiple air outlets.

9. The heat dissipating and dustproof motor end cover according to claim 8, characterized in that: The fixed cylinder is connected to a first fixing ring through a plurality of first radial rods, the first fixing ring is installed with a rotating tube through a first bearing, a plurality of first rotating blades are installed on the rotating tube, and a locking bolt is provided on the rotating tube; the rotating tube is connected to a rotating ring having a frustum-shaped abutting surface through a plurality of connecting plates; the movable cylinder is connected to a second fixing ring through a plurality of second radial rods, the second fixing ring is installed with a rotating block through a second bearing, a plurality of second rotating blades are installed on the rotating block, and the rotating block is connected to a frustum-shaped block capable of abutting the frustum-shaped abutting surface through the rotating rod; the fixed cylinder has a plurality of air inlet holes; the fixed cylinder is also installed with a rotating filter, the rotating filter includes two arc-shaped rod portions, a first arc-shaped rod and a second arc-shaped rod, the arc-shaped rod portions are connected to a rotating shaft, and the ends of the rotating shaft are connected to a gear, the movable cylinder has two strip grooves, the strip grooves have a row of first teeth that can mesh with the gear, and the two gears are respectively located in the two strip grooves; the ends of the strip grooves are fixed with a limit block, and the limit block has a plurality of second teeth that can mesh with the gear.

10. The heat dissipating and dustproof motor end cover according to claim 9, characterized in that: The electric telescopic rod further comprises a third bearing mounted on the plurality of connecting plates and a fourth bearing mounted on the rotating rod; the first arc-shaped rod has a first arc-shaped elastic pad, and the second arc-shaped rod has a second arc-shaped elastic pad; the electric telescopic rod can be in a first length and a second length, the second length being greater than the first length; When the electric telescopic rod is at the first length, the rotating filter is parallel to the first filter, and the two gears are respectively engaged with the second teeth at the two limit blocks; when the electric telescopic rod is at the second length, the rotating filter is perpendicular to the first filter, the frustum-shaped block abuts the frustum-shaped abutting surface, the two gears are respectively engaged with the first teeth at the two strip grooves, the first arc-shaped elastic pad abuts the outer ring of the third bearing, and the second arc-shaped elastic pad abuts the outer ring of the fourth bearing.

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