An energy-saving motor with improved insulation performance

Abstract

The present invention belongs to the technical field of motors, and specifically is an energy-saving motor capable of improving insulation performance, comprising a motor body, wherein a rotor, a commutator and a carbon brush are arranged inside the motor body, an air port is opened on the motor body, a filter is arranged in the air port, an air hood is arranged inside the motor body, the opening of the air hood faces the contact part between the commutator and the carbon brush, an air cylinder is fixedly installed inside the motor body, a first air pipe and a second air pipe are arranged on the air cylinder, the other end of the first air pipe extends out of the outside of the motor body, and the other end of the second air pipe is connected to the air hood through a connecting pipe, a rubber plug is slidably installed inside the air cylinder, and a one-way valve is arranged on the first air pipe and the second air pipe, which can reduce the carbon powder content inside the motor body, reduce the problem of the conductive path burning the insulation layer, improve the insulation performance of the motor body, reduce the contact resistance, improve the electric energy conversion efficiency of the motor body, and save more energy.

Description

Technical Field

[0001] The invention belongs to the technical field of motors, and in particular to an energy-saving motor capable of improving insulation performance. Background Art

[0002] Energy-saving motors refer to electric motors that significantly improve energy conversion efficiency and reduce operating losses by optimizing electromagnetic design, using high-performance materials (such as high-magnetic silicon steel and permanent magnets) and advanced control technologies (such as variable frequency speed regulation).

[0003] For example, the patent disclosed: CN118572917B discloses a heat dissipation mechanism for a DC motor stator and its installation method. Insulating oil enters the heat dissipation pipe under the drive of a micro water pump. The heat dissipation pipe fits with the heat dissipation holes on the stator body, thereby absorbing the heat generated by the stator body. The heat then flows back to the cooling water tank through the return pipe and dissipates heat through the cooling water tank and heat dissipation fins, thereby achieving rapid heat transfer and dissipation, effectively reducing the temperature of the stator body, and improving the operating stability and life of the DC motor.

[0004] However, when the motor is running, the carbon brushes maintain sliding contact with the commutator or slip ring, and continuous wear will generate carbon powder inside the motor. At the same time, the air flow inside the motor is weak, and the carbon powder is not easy to discharge. Since the main component of the carbon brush is graphite (conductive material), when it adheres to insulating materials (such as enameled wire, plastic brackets, mica sheets, etc.), a conductive path will be formed, causing leakage current between the originally isolated circuits, thereby burning the insulation layer.

[0005] To this end, the present invention provides an energy-saving motor with improved insulation performance. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: the energy-saving motor with improved insulation performance described in the present invention includes a motor body, wherein a rotor, a commutator and carbon brushes are arranged inside the motor body;

[0008] An air port is provided on the motor body, and a filter is provided inside the air port;

[0009] An air cover is provided inside the motor body, and the opening of the air cover faces the contact part between the commutator and the carbon brush;

[0010] An air cylinder is fixedly installed inside the motor body, and a first air pipe and a second air pipe are provided on the air cylinder;

[0011] The other end of the first air pipe extends out of the motor body, and the other end of the second air pipe is connected to the air cover through a connecting pipe;

[0012] A rubber plug is slidably installed inside the air cylinder, and a one-way valve is arranged on the first air pipe and the second air pipe.

[0013] A mounting plate is fixedly installed inside the motor body, a transmission rod is slidably installed on the mounting plate, a push rod is fixedly installed on one end of the transmission rod, and the other end of the push rod extends to the inside of the air cylinder and is fixedly connected to the rubber plug.

[0014] A transmission disc that rotates synchronously with the rotor is provided on the placement plate, and a push block is fixedly installed on the side wall of the transmission rod, one end of the push block extends to the surface of the transmission disc;

[0015] A first push rod is rotatably mounted on the placement plate, and a second push rod is fixedly mounted on the first push rod;

[0016] One end of the first push rod extends to the surface of the transmission disc, and the second push rod is connected to the transmission rod.

[0017] A first shifting rod and a second shifting rod for pushing the push block or the first push rod are fixedly mounted on the transmission disc.

[0018] A sliding groove is provided on the second push rod, and a guide rod is fixedly installed on the outer wall of the transmission rod, and one end of the guide rod extends to the interior of the sliding groove.

[0019] A transmission shaft is fixedly installed on the end of the transmission rod away from the top rod, and a transmission cylinder is rotatably installed on the transmission shaft. A transmission gear is provided on the end of the transmission cylinder away from the transmission shaft. A toothed disc meshing with the transmission gear is rotatably installed on the outer wall of the filter screen, and a scraper is fixedly installed on the end of the toothed disc away from the transmission shaft, and the scraper fits the surface of the filter screen.

[0020] A positioning cylinder is fixedly installed on one end of the gear disc close to the transmission shaft, and a hammer head is elastically installed inside the positioning cylinder. A protrusion for pressing the hammer head is fixedly installed on one end of the filter close to the transmission shaft. There are multiple protrusions, which are arranged in a ring shape along the surface of the filter.

[0021] A spiral groove is opened on the inner wall of the transmission cylinder, and a guide block is fixedly installed on the outer wall of the transmission shaft, and one end of the guide block extends to the inside of the spiral groove.

[0022] One end of the transmission cylinder extends to the interior of the transmission gear and is fixedly mounted with a ratchet wheel. A ratchet rod for blocking the ratchet wheel is elastically mounted inside the transmission gear.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. The energy-saving motor with improved insulation performance described in the present invention drives the first lever and the second lever to rotate through the transmission disk, and pushes the push block and the first push rod, so that the transmission rod drives the rubber plug to slide back and forth inside the air cylinder, and cooperates with the first air pipe and the second air pipe to discharge the carbon powder in the motor body, thereby reducing the carbon powder content inside the motor body, reducing the conductive path, and the problem of burning the insulation layer. While improving the insulation performance of the motor body, it also reduces the contact resistance, improves the electric energy conversion efficiency of the motor body, and is more energy-efficient.

[0025] 2. The energy-saving motor with improved insulation performance described in the present invention can make the transmission shaft slide back and forth inside the transmission cylinder through the reciprocating sliding of the transmission rod on the mounting plate. The cooperation of the guide block and the spiral groove can make the gear disk always maintain a counterclockwise rotation trend, which can drive the scraper to rotate on the surface of the filter screen and drive the positioning cylinder to rotate around the filter screen. The filter screen can be knocked by the cooperation of the hammer head and the protrusion, thereby improving the cleaning effect of the filter screen and ensuring the circulation of gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Figure 1 It is a stereogram of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the scraper in the present invention;

[0029] Figure 3 It is a schematic structural diagram of the gas hood in the present invention;

[0030] Figure 4 In the present invention Figure 3 A magnified view of point A in the figure;

[0031] Figure 5 It is a structural schematic diagram of the transmission plate in the present invention;

[0032] Figure 6 In the present invention Figure 5 Enlarged view of point B in .

[0033] In the figure: 1. Motor body; 2. Air port; 3. Rotor; 4. Commutator; 5. Carbon brush; 6. Filter; 7. Scraper; 8. Mounting plate; 9. Air cylinder; 10. Air cover; 11. Connecting pipe; 12. First air pipe; 13. Second air pipe; 14. Push rod; 15. Rubber plug; 16. Bump; 17. Transmission plate; 18. Transmission rod; 19. Push block; 20. First shift rod; 21. Second shift rod; 22. First push rod; 23. Second push rod; 24. Sliding groove; 25. Guide rod; 26. Transmission shaft; 27. Transmission cylinder; 28. Spiral groove; 29. ​​Guide block; 30. Ratchet; 31. Ratchet rod; 32. Transmission gear; 33. Toothed disc; 34. Positioning cylinder; 35. Hammer head. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0035] like Figures 1 to 6 As shown, an energy-saving motor with improved insulation performance according to an embodiment of the present invention includes a motor body 1, wherein a rotor 3, a commutator 4 and a carbon brush 5 are provided inside the motor body 1;

[0036] The motor body 1 is provided with an air port 2, and a filter 6 is provided in the air port 2;

[0037] The filter 6 provided can effectively filter the dust in the gas when the air flows through the air port 2 into the interior of the motor body 1, thereby effectively reducing the problem of internal short circuit failure caused by dust entering the interior of the motor body 1.

[0038] An air cover 10 is provided inside the motor body 1, and the opening of the air cover 10 faces the contact part between the commutator 4 and the carbon brush 5;

[0039] When the commutator 4 rotates and contacts the carbon brush 5, carbon powder is generated. By creating a negative pressure in the air hood 10, the generated carbon powder can be absorbed, effectively solving the problem of carbon powder forming a conductive path in the motor body 1 and burning the insulation layer. This not only ensures the service life of the motor body 1, but also improves the insulation performance inside the motor body 1.

[0040] At the same time, by reducing the content of carbon powder inside the motor body 1, the contact between the carbon brush 5 and the commutator 4 can be improved, the contact resistance can be reduced, and the power conversion efficiency of the motor body 1 can be improved, which is more energy-saving.

[0041] An air cylinder 9 is fixedly installed inside the motor body 1, and a first air pipe 12 and a second air pipe 13 are provided on the air cylinder 9;

[0042] The other end of the first air pipe 12 extends out of the motor body 1, and the other end of the second air pipe 13 is connected to the air cover 10 through the connecting pipe 11;

[0043] A rubber stopper 15 is slidably mounted inside the air cylinder 9 , and a one-way valve is provided on both the first air pipe 12 and the second air pipe 13 .

[0044] The one-way valve provided on the first air pipe 12 only allows the connecting pipe 11 to flow into the air cylinder 9;

[0045] The one-way valve provided on the second air pipe 13 can only allow the air cylinder 9 to flow toward the second air pipe 13 .

[0046] Therefore, when the rubber stopper 15 slides from the left to the right inside the air cylinder 9 (towards the direction away from the first air pipe 12), the opening of the air cover 10 can be negatively pressurized through the first air pipe 12 and the connecting pipe 11. At this time, the carbon powder generated by the friction between the commutator 4 and the carbon brush 5 can be sucked into the interior of the air cylinder 9 by the air cover 10. Then, by controlling the rubber stopper 15 to slide from the right to the left inside the air cylinder 9 (towards the direction of the first air pipe 12), the carbon powder inside the air cylinder 9 can be discharged to the outside of the motor body 1 through the second air pipe 13, effectively reducing the content of carbon powder inside the motor body 1, improving the insulation effect inside the motor body 1, reducing contact resistance, and improving the power conversion efficiency of the motor body 1, which is more energy-saving.

[0047] As a preferred embodiment of the present invention, a placement plate 8 is fixedly installed inside the motor body 1, a transmission rod 18 is slidably installed on the placement plate 8, a push rod 14 is fixedly installed at one end of the transmission rod 18, and the other end of the push rod 14 extends to the interior of the air cylinder 9 and is fixedly connected to the rubber plug 15.

[0048] When the transmission rod 18 slides back and forth on the mounting plate 8, the transmission rod 18 can drive the rubber plug 15 to slide back and forth inside the air cylinder 9, and cooperate with the first air pipe 12 and the second air pipe 13 to discharge the carbon powder in the motor body 1, thereby reducing the carbon powder content inside the motor body 1, reducing the conductive path, and reducing the problem of burning the insulation layer, thereby improving the insulation performance of the motor body 1 and increasing the service life of the motor body 1.

[0049] A transmission disc 17 that rotates synchronously with the rotor 3 is provided on the placement plate 8, and a push block 19 is fixedly installed on the side wall of the transmission rod 18, and one end of the push block 19 extends to the surface of the transmission disc 17;

[0050] The rotation of the transmission disc 17 is synchronized with the rotor 3 , and the push block 19 slides following the transmission rod 18 .

[0051] A first push rod 22 is rotatably mounted on the placement plate 8, and a second push rod 23 is fixedly mounted on the first push rod 22;

[0052] One end of the first push rod 22 extends to the surface of the transmission disk 17 , and the second push rod 23 is connected to the transmission rod 18 .

[0053] A first shifting rod 20 and a second shifting rod 21 for pushing the push block 19 or the first push rod 22 are fixedly mounted on the transmission disc 17 .

[0054] A sliding groove 24 is defined on the second push rod 23 . A guide rod 25 is fixedly mounted on the outer wall of the transmission rod 18 . One end of the guide rod 25 extends into the interior of the sliding groove 24 .

[0055] The first push rod 22 and the second push rod 23 form an L-shaped structure. The first detent rod 20 and the second detent rod 21 are symmetrically mounted on the outer wall of the transmission disk 17. When the transmission disk 17 rotates clockwise, the first detent rod 20 is first driven to push the push block 19. At this time, the push block 19 drives the transmission rod 18 to move toward the direction of the air cylinder 9, and at the same time drives the rubber plug 15 to slide inside the air cylinder 9 through the push rod 14, until the second detent rod 21 pushes the first push rod 22, so that the first push rod 22 drives the second push rod 23 to rotate counterclockwise on the placement plate 8. At this time, the second push rod 23 can drive the transmission rod 18 to slide in the direction away from the air cylinder 9 through the cooperation of the sliding groove 24 and the guide rod 25.

[0056] By driving the first lever 20 and the second lever 21 to rotate continuously through the transmission disk 17, the push rod 14 can drive the rubber plug 15 to slide back and forth inside the air cylinder 9, and cooperate with the first air pipe 12 and the second air pipe 13 to discharge the carbon powder in the motor body 1, thereby reducing the carbon powder content inside the motor body 1, reducing the conductive path, and reducing the problem of burning the insulation layer, thereby improving the insulation performance of the motor body 1 and increasing the service life of the motor body 1.

[0057] As a preferred embodiment of the present invention, a transmission shaft 26 is fixedly installed on the end of the transmission rod 18 away from the top rod 14, and a transmission cylinder 27 is rotatably installed on the transmission shaft 26. A transmission gear 32 is provided on the end of the transmission cylinder 27 away from the transmission shaft 26. A toothed disc 33 meshing with the transmission gear 32 is rotatably installed on the outer wall of the filter 6, and a scraper 7 is fixedly installed on the end of the toothed disc 33 away from the transmission shaft 26, and the scraper 7 is in contact with the surface of the filter 6.

[0058] By rotating the transmission cylinder 27 on the transmission shaft 26, the transmission gear 32 can drive the toothed disc 33 to rotate, and the toothed disc 33 can drive the scraper 7 to rotate on the surface of the filter 6, so as to scrape off the dust and debris blocked on the surface of the filter 6, thereby effectively ensuring the flow of gas.

[0059] A positioning cylinder 34 is fixedly installed at one end of the toothed disc 33 close to the transmission shaft 26, and a hammer head 35 is elastically installed inside the positioning cylinder 34. A protrusion 16 for pressing the hammer head 35 is fixedly installed at one end of the filter screen 6 close to the transmission shaft 26. There are multiple protrusions 16, and the multiple protrusions 16 are arranged in a ring shape along the surface of the filter screen 6.

[0060] When the toothed disc 33 is driven to rotate by the transmission gear 32, the toothed disc 33 will drive the positioning cylinder 34 to rotate around the filter 6. At this time, the hammer head 35 provided on the positioning cylinder 34 will contact the protrusions 16 in turn and be pressed by the protrusions 16 until the hammer head 35 moves between the two protrusions 16. At this time, the hammer head 35 can be pushed out by elastic potential energy and knock on the filter 6, further assisting in cleaning the filter 6.

[0061] As a preferred embodiment of the present invention, a spiral groove 28 is formed on the inner wall of the transmission cylinder 27 , and a guide block 29 is fixedly mounted on the outer wall of the transmission shaft 26 , with one end of the guide block 29 extending into the interior of the spiral groove 28 .

[0062] One end of the transmission cylinder 27 extends to the interior of the transmission gear 32 and is fixedly mounted with a ratchet 30 . A ratchet rod 31 for blocking the ratchet 30 is elastically mounted inside the transmission gear 32 .

[0063] By setting the ratchet rod 31, the clockwise rotation of the ratchet wheel 30 can be blocked, but the counterclockwise rotation of the ratchet wheel 30 will not be blocked.

[0064] When the transmission disk 17 drives the first lever 20 and the second lever 21 to rotate continuously, it can drive the transmission rod 18 to slide back and forth on the placement plate 8. When the transmission shaft 26 drives the guide block 29 to slide toward the inside of the transmission cylinder 27, the transmission cylinder 27 can be rotated clockwise through the cooperation of the guide block 29 and the spiral groove 28. At this time, the ratchet 30 will drive the transmission gear 32 to rotate clockwise synchronously through the cooperation of the ratchet rod 31.

[0065] When the transmission shaft 26 slides in a direction away from the transmission gear 32, the cooperation between the guide block 29 and the spiral groove 28 will drive the transmission cylinder 27 to rotate counterclockwise. At this time, the ratchet rod 31 will not block the ratchet wheel 30, so the transmission cylinder 27 will not drive the transmission gear 32 to rotate counterclockwise. This structure can make the toothed disc 33 always maintain the tendency to rotate counterclockwise.

[0066] Working principle: when the transmission plate 17 rotates clockwise, it first drives the first lever 20 to push the push block 19. At this time, the push block 19 drives the transmission rod 18 to move in the direction of the cylinder 9, and drives the rubber plug 15 to slide inside the cylinder 9 through the push rod 14 at the same time, until the second lever 21 pushes the first push rod 22, so that the first push rod 22 drives the second push rod 23 to rotate counterclockwise on the mounting plate 8. At this time, the second push rod 23 can drive the transmission rod 18 to slide in the direction away from the cylinder 9 through the cooperation of the sliding groove 24 and the guide rod 25, thereby realizing the reciprocating sliding of the transmission rod 18, so that the push rod 14 drives the rubber plug 15 to slide back and forth inside the cylinder 9, and cooperates with the first air pipe 12 and the second air pipe 13 to discharge the carbon powder in the motor body 1, reducing the carbon powder content in the motor body 1, reducing the conductive path, and the problem of burning the insulation layer. While improving the insulation performance of the motor body 1, it reduces the contact resistance, improves the power conversion efficiency of the motor body 1, and is more energy-saving.

[0067] By allowing the transmission rod 18 to slide back and forth on the placement plate 8, the transmission shaft 26 can slide back and forth inside the transmission cylinder 27. By cooperating with the guide block 29 and the spiral groove 28, the toothed disc 33 can always maintain a counterclockwise rotation trend, which can drive the scraper 7 to rotate on the surface of the filter 6 while also driving the positioning cylinder 34 to rotate around the filter 6. By cooperating with the hammer head 35 and the protrusion 16, the filter 6 can be knocked, thereby improving the cleaning effect of the filter 6 and ensuring the circulation of gas.

[0068] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0069] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0070] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving motor capable of improving insulation performance, comprising a motor body (1), wherein a rotor (3), a commutator (4) and a carbon brush (5) are arranged inside the motor body (1); Its characteristics are: An air port (2) is provided on the motor body (1), and a filter (6) is provided in the air port (2); An air hood (10) is provided inside the motor body (1), and an opening of the air hood (10) faces the contact portion between the commutator (4) and the carbon brush (5); An air cylinder (9) is fixedly installed inside the motor body (1), and a first air pipe (12) and a second air pipe (13) are provided on the air cylinder (9); The other end of the first air pipe (12) extends outside the motor body (1), and the other end of the second air pipe (13) is connected to the air cover (10) through the connecting pipe (11); A rubber stopper (15) is slidably mounted inside the air cylinder (9), and a one-way valve is provided on both the first air pipe (12) and the second air pipe (13); A placement plate (8) is fixedly mounted inside the motor body (1), a transmission rod (18) is slidably mounted on the placement plate (8), a push rod (14) is fixedly mounted on one end of the transmission rod (18), and the other end of the push rod (14) extends into the interior of the air cylinder (9) and is fixedly connected to the rubber plug (15); A transmission disc (17) that rotates synchronously with the rotor (3) is provided on the placement plate (8), and a push block (19) is fixedly mounted on the side wall of the transmission rod (18), with one end of the push block (19) extending to the surface of the transmission disc (17); A first push rod (22) is rotatably mounted on the placement plate (8), and a second push rod (23) is fixedly mounted on the first push rod (22); One end of the first push rod (22) extends to the surface of the transmission disk (17), and the second push rod (23) is connected to the transmission rod (18); A first shifting rod (20) and a second shifting rod (21) for pushing the push block (19) or the first push rod (22) are fixedly mounted on the transmission disc (17); A transmission shaft (26) is fixedly mounted on one end of the transmission rod (18) away from the top rod (14); a transmission cylinder (27) is rotatably mounted on the transmission shaft (26); a transmission gear (32) is provided on one end of the transmission cylinder (27) away from the transmission shaft (26); a toothed disc (33) meshing with the transmission gear (32) is rotatably mounted on the outer wall of the filter screen (6); a scraper (7) is fixedly mounted on one end of the toothed disc (33) away from the transmission shaft (26); and the scraper (7) is in contact with the surface of the filter screen (6).

2. The energy-saving motor with improved insulation performance according to claim 1, characterized in that: A sliding groove (24) is provided on the second push rod (23), and a guide rod (25) is fixedly mounted on the outer wall of the transmission rod (18), with one end of the guide rod (25) extending into the interior of the sliding groove (24).

3. The energy-saving motor with improved insulation performance according to claim 2, characterized in that: A positioning cylinder (34) is fixedly mounted on one end of the toothed disc (33) close to the transmission shaft (26), a hammer head (35) is elastically mounted inside the positioning cylinder (34), and a protrusion (16) for pressing the hammer head (35) is fixedly mounted on one end of the filter screen (6) close to the transmission shaft (26), wherein a plurality of protrusions (16) are provided, and the plurality of protrusions (16) are arranged in a ring shape along the surface of the filter screen (6).

4. The energy-saving motor with improved insulation performance according to claim 3, characterized in that: A spiral groove (28) is formed on the inner wall of the transmission cylinder (27), and a guide block (29) is fixedly mounted on the outer wall of the transmission shaft (26), with one end of the guide block (29) extending into the interior of the spiral groove (28).

5. The energy-saving motor with improved insulation performance according to claim 4, characterized in that: One end of the transmission cylinder (27) extends to the interior of the transmission gear (32) and is fixedly mounted with a ratchet (30). A ratchet rod (31) for blocking the ratchet (30) is elastically mounted inside the transmission gear (32).

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