Disc type motor rotor structure and disc type motor

Abstract

The invention relates to the technical field of disc type motor rotors, in particular to a disc type motor rotor structure and a disc type motor, the disc type motor rotor structure comprises a rotor support, the surface of the rotor support is equidistantly provided with a plurality of groups of mounting grooves in a surrounding manner, the mounting grooves are communicated with a cavity through a plurality of groups of through holes formed in the bottom surface, and magnetic steel is mounted in the mounting grooves; the symmetrical edges of the upper surfaces of the magnetic steels are provided with first inclined planes, a pressing plate is arranged between the two groups of magnetic steels, the upper surface of the pressing plate is symmetrically provided with two groups of strip-shaped grooves, the symmetrical edges of the lower surface of the pressing plate are provided with second inclined planes, and the matching parts are used for assisting the pressing plate in fixing the magnetic steels. Through cooperative use of all parts, the magnetic steel can be clamped and fixed in the installation process, firmness and stability of the magnetic steel are guaranteed, meanwhile, the magnetic steel can be cooled, and the efficiency and performance of the motor are improved.

Description

Technical Field

[0001] The invention relates to the technical field of disc motor rotors, and in particular to a disc motor rotor structure and a disc motor. Background Art

[0002] With the rapid development of global industrialization and technological progress, the demand for miniaturization, lightness and high efficiency of motors is becoming increasingly urgent. In this context, disc motors have gradually become one of the first choices in various fields due to their many advantages such as short axial length, compact structure, high power density and high efficiency. Especially in the fields of industrial manufacturing, aerospace, new energy power generation and electric vehicles, disc motors are rapidly gaining wide application and recognition. Its excellent performance characteristics not only improve the working efficiency of the equipment, but also provide strong support for achieving more environmentally friendly and energy-saving goals. It can be foreseen that disc motors will continue to play an important role in future industrial development and bring more innovation and progress to various industries. Usually, the rotor magnets of disc motors are glued to the rotor back iron, which is a common design.

[0003] However, for dual-rotor single-stator disc motors, the design of the rotor back iron faces many challenges and difficulties. Among them, the need to balance the stators at both ends during the design process makes the structural design of the rotor back iron complex and difficult. At the same time, the traditional magnetic steel pasting process has the risk of magnetic steel falling off, which will affect the performance and stability of the motor. Summary of the invention

[0004] The object of the present invention is to provide a disc motor rotor structure and a disc motor to solve the problems of magnetic steel falling off and unreliable fixation in the prior art mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a disc motor rotor structure and a disc motor, comprising a rotor bracket, wherein a plurality of groups of mounting grooves are equidistantly arranged around the surface of the rotor bracket, and further comprising: the mounting grooves are connected to cavities through a plurality of groups of through holes arranged on the bottom surface, and the through grooves are connected through guide grooves, and one end of the guide grooves extends to the outside of the rotor bracket, a magnetic steel is installed inside the mounting groove, a first inclined surface is arranged on symmetrical edges of the upper surface of the magnetic steel, a pressing plate is arranged between two groups of the magnetic steels, and two groups of strip grooves are symmetrically arranged on the upper surface of the pressing plate, a second inclined surface is arranged on symmetrical edges of the lower surface of the pressing plate, and a matching piece for assisting the pressing plate in fixing the magnetic steel; It also includes multiple groups of heat dissipation mechanisms for dissipating heat from magnetic steel, the heat dissipation mechanisms include baffles and positioning rings, the interior of the positioning ring is rotatably connected to a driving page, the surface of the driving page is provided with a recess, the inner wall of the recess is equidistantly provided with multiple groups of first magnetic blocks, the outside of the first magnetic block is correspondingly provided with a second magnetic block, and the second magnetic block is fixedly installed on the inner wall of the positioning ring.

[0006] Furthermore, a plurality of groups of grooves are equidistantly provided on the surface of the rotor bracket, and a power supply port is provided on an inner wall of one side of the groove.

[0007] Furthermore, a plurality of groups of mounting holes are equidistantly provided on the surface of the pressure plate, and the mounting holes are tightly connected to matching holes provided on the surface of the rotor bracket through bolts.

[0008] Furthermore, two groups of bar blocks are fixedly installed on the lower surface of the pressure plate, and the bar blocks are inserted into the inside of the groove, one end of the bar block is telescopically connected with a telescopic head, and the telescopic head is inserted into the inside of the power supply port, and a round rod is fixedly installed at the lower end of the bar block, and a compression groove is opened inside the round rod.

[0009] Furthermore, a connecting groove is provided inside the strip block, and the plane structure of the connecting groove is a trapezoidal structure, and the connecting groove is connected to the strip groove provided on the surface of the pressure plate, and two groups of refrigeration fins are symmetrically installed on the inner wall of the connecting groove.

[0010] Furthermore, the matching piece includes an elastic sheet symmetrically mounted on the inner wall of the groove, the elastic sheet is in an L-shaped structure, the end of the elastic sheet is movably connected to a clamping plate, and the clamping plate is slidably matched with the bottom surface of the cavity.

[0011] Furthermore, the baffle is fixedly mounted on the upper surface of the pressure plate, and the baffle is located directly above the strip groove.

[0012] Furthermore, the second magnetic block is electrically connected to the telescopic head, and opposite surfaces of the second magnetic block and the first magnetic block magnetically repel each other.

[0013] A disc motor comprises the disc motor rotor structure.

[0014] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects: 1. The present invention provides mutually cooperating parts such as a pressure plate, an elastic sheet and a clamping plate, and then when the magnetic steel is installed inside the installation groove, the pressure plate is installed in sequence according to the position and fixed with bolts. During the installation of the pressure plate, the strip block will enter the inside of the groove and begin to squeeze the elastic sheet, so that the elastic sheet expands and pushes outward, so that the clamping plate begins to slide and contact the magnetic steel to clamp the magnetic steel. At the same time, the second inclined surface on the edge of the lower surface of the pressure plate cooperates with the first inclined surface on the edge of the upper surface of the magnetic steel, so that the pressure plate can effectively press the magnetic steel, successfully realizing the rotor fixation of the dual-stator single-rotor disc motor and ensuring the firm installation of the magnetic steel.

[0015] 2. The present invention sets up the baffle, the first magnetic block, the second magnetic block and other components that cooperate with each other. After the pressure plate is installed, the telescopic head will enter the inside of the power supply port and start to electrically connect, and start to energize the second magnetic block, so that the second magnetic block begins to generate magnetism that repels the first magnetic block, and then starts to drive the drive page to rotate through the first magnetic block. When the second magnetic block is energized, the cooling plate will also start to energize. At the same time, in conjunction with the rotation of the magnetic steel, the external gas will pass through the baffle and enter the inside of the strip groove connecting groove. After being cooled by the cooling plate, it will enter the inside of the compression groove under the action of the driving page and be compressed. Then it will enter the inside of the cavity and be discharged through the through hole to act on the bottom surface of the magnetic steel, thereby cooling the magnetic steel and improving the performance and working efficiency of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic plan view of the overall structure of the present invention; Figure 2 This is a schematic diagram of the separation of the magnetic steel pressure plate and the rotor support structure of the present invention; Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle; Figure 4 It is a schematic diagram of the internal structure of the rotor support of the present invention; Figure 5 It is a schematic diagram of the bottom structure of the magnetic steel pressing plate of the present invention; Figure 6 It is a schematic diagram of the overall structure of the heat dissipation mechanism of the present invention; Figure 7 for Figure 6 A schematic diagram of the structure enlargement in the middle; Figure 8 It is a schematic diagram of the structural separation of the positioning ring and the driving page of the present invention.

[0018] In the figure: 1. rotor bracket; 101. mounting groove; 102. cavity; 103. groove; 104. power supply port; 2. magnetic steel; 3. pressure plate; 301. mounting hole; 302. strip block; 3021. connecting groove; 3022. cooling plate; 303. telescopic head; 304. round rod; 305. compression groove; 4. matching part; 401. elastic sheet; 402. clamping plate; 5. heat dissipation mechanism; 501. baffle; 502. positioning ring; 503. drive page; 504. notch; 505. first magnetic block; 506. second magnetic block. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] The present invention will be further described below in conjunction with the embodiments.

[0021] Embodiment: A disc motor rotor structure and a disc motor, such as Figure 1-Figure 8 As shown, it includes a rotor bracket 1, and by setting the rotor bracket 1, the support function can be connected to maintain the stability and uniformity of the magnetic field. The surface of the rotor bracket 1 is equidistantly surrounded by multiple groups of mounting grooves 101 to facilitate the installation of parts; the mounting grooves 101 are connected to cavities 102 through multiple groups of through holes opened on the bottom surface, and the cavity 102 and the through holes are provided to increase the effective area of ​​the airflow, so as to play a role in cooling; the through grooves are connected by guide grooves, and one end of the guide groove extends to the outside of the rotor bracket 1. By providing the guide groove, the cooling gas can be easily circulated and discharged.

[0022] Among them, a plurality of groups of grooves 103 are equidistantly provided on the surface of the rotor bracket 1, and a power supply port 104 is provided on the inner wall of one side of the groove 103, and the power supply port 104 is electrically connected to an external power source; a magnet 2 is installed inside the mounting groove 101, and a magnetic field can be generated by setting the magnet 2, and as the rotor bracket 1 rotates, the uniformity and stability of the magnetic field inside the disc motor are improved.

[0023] Among them, the first inclined surface is provided at the symmetrical edges of the upper surface of the magnetic steel 2, a pressing plate 3 is provided between the two groups of magnetic steels 2, and the second inclined surface is provided at the symmetrical edges of the lower surface of the pressing plate 3. By providing the first inclined surface and the second inclined surface, when the pressing plate 3 is installed, the second inclined surface can cooperate with the first inclined surface, so that the pressing plate 3 can effectively press and fix the magnetic steel 2 to ensure the stability of the magnetic steel 2; the upper surface of the pressing plate 3 is symmetrically provided with two groups of strip grooves; Among them, a plurality of groups of mounting holes 301 are equidistantly provided on the surface of the pressing plate 3, and the mounting holes 301 are tightly connected with the matching holes provided on the surface of the rotor bracket 1 through bolts, so that the pressing plate 3 can be fixedly installed on the surface of the rotor bracket 1; two groups of bar blocks 302 are fixedly installed on the lower surface of the pressing plate 3, and the bar blocks 302 are inserted into the inside of the groove 103. By providing the bar blocks 302, other parts can be squeezed when entering the inside of the groove 103; a connecting groove 3021 is provided inside the bar block 302, and the plane structure of the connecting groove 3021 is a trapezoidal structure, and the connecting groove 3021 is connected with the bar groove provided on the surface of the pressing plate 3. By providing the connecting groove 3021, the gas entering from the inside of the bar groove can be initially compressed, so that the gas can flow out from the bottom of the bar groove in a concentrated manner; Among them, two groups of cooling fins 3022 are symmetrically installed on the inner wall of the connecting groove 3021. By setting the cooling fins 3022, the temperature of the gas inside the connecting groove 3021 can be reduced through its cooling effect, thereby achieving the purpose of better cooling; one end of the bar block 302 is telescopically connected with a telescopic head 303, and the telescopic head 303 is inserted into the inside of the power supply port 104. By setting the telescopic head 303, it can be plugged and matched with the power supply port 104 to achieve electrical connection and transmit electrical energy; it is worth noting that the telescopic head 303 and the cooling fins 3022 are connected to each other. The sheets 3022 are electrically connected; a round rod 304 is fixedly installed at the lower end of the strip block 302. By setting the round rod 304, a positioning effect can be achieved, so that the pressure plate 3 can be directly fixed when it is fixed with bolts to avoid further adjustment; a compression groove 305 is opened inside the round rod 304, and the upper end of the compression groove 305 is connected to the lower end of the connecting groove 3021, so that the gas inside the connecting groove 3021 can enter the interior of the compression groove 305; it is worth noting that the upper and lower ends of the compression groove 305 are both trumpet-shaped.

[0024] Combined with Figure 2 -Attached Figure 4, by providing a matching piece 4 for assisting the pressing plate 3 to fix the magnetic steel 2, the magnetic steel 2 can be more stable, ensuring the stability and uniformity of the magnetic field; the matching piece 4 includes an elastic sheet 401 symmetrically installed on the inner wall of the groove 103, and the elastic sheet 401 is an L-shaped structure. By providing the elastic sheet 401, when the pressing plate 3 is installed, the elastic sheet 401 can be squeezed by the bar block 302, so that the elastic sheet 401 is deformed and approaches the magnetic steel 2; Among them, the end of the elastic sheet 401 is movably connected with a clamping plate 402, and the clamping plate 402 is slidably matched with the bottom surface of the cavity 102. By setting the clamping plate 402, when the elastic sheet 401 is deformed and moved, the clamping plate 402 can be pushed to move synchronously, so that the clamping plate 402 begins to contact the surface of the magnet 2, clamps the magnet 2, and realizes preliminary positioning, so that the second inclined surface opened on the lower side of the pressure plate 3 cooperates with the first inclined surface opened on the upper surface of the magnet 2 to ensure the stability of the magnet 2.

[0025] Combined with Figure 1 -Attached Figure 8 , and also includes a plurality of heat dissipation mechanisms 5 for dissipating heat from the magnetic steel 2, so that the magnetic steel 2 can be cooled during operation to ensure the magnetic properties of the magnetic steel 2. The heat dissipation mechanism 5 includes a baffle 501 and a positioning ring 502. The baffle 501 is fixedly mounted on the upper surface of the pressure plate 3, and the baffle 501 is located directly above the strip groove. By setting the baffle 501, it can rotate synchronously with the rotor bracket 1, collect the air and allow the air to enter the connecting groove 3021 from the strip groove; it is worth noting that in order to facilitate heat dissipation and improve the stability of the motor, the disc motor will allow external gas to enter the inside of the disc motor to facilitate heat dissipation of the disc motor, and the positioning ring 502 is made of magnetic shielding material, such as nickel-iron alloy and other materials that can absorb magnetic fields; the internal rotation of the positioning ring 502 is connected to the driving page 503, and by setting the driving page 503, the gas inside the connecting groove 3021 can be discharged and enter the compression groove 305 for compression; Among them, a notch 504 is provided on the surface of the driving page 503, and by setting the notch 504, it can cooperate with the positioning ring 502, so that the notch 504 can be supported; a plurality of groups of first magnetic blocks 505 are equidistantly arranged around the inner wall of the notch 504, and a second magnetic block 506 is correspondingly provided on the outside of the first magnetic block 505, and the second magnetic block 506 is fixedly installed on the inner wall of the positioning ring 502, the second magnetic block 506 is electrically connected to the telescopic head 303, and the second magnetic block 506 and the opposite surface of the first magnetic block 505 are magnetically repelled, and by setting the first magnetic block 505 and the second magnetic block 506, after the pressure plate 3 is installed, the telescopic head 303 will enter the interior of the power supply port 104 , realize electrical connection, and power the cooling plate 3022 and the second magnetic block 506 at the same time, so that the cooling plate 3022 starts to cool, and the second magnetic block 506 starts to generate magnetism that repels each other with the first magnetic block 505, so as to drive the first magnetic block 505 to start rotating, and then drive the driving page 503 to start rotating, thereby accelerating the speed of gas discharge inside the connecting groove 3021 and improving the cooling efficiency; it is worth noting that the second magnetic block 506 is installed inside the positioning ring 502. Because the positioning ring 502 is made of magnetic shielding material, the magnetic field generated when the second magnetic block 506 is energized will be absorbed by the positioning ring 502, and will not affect the magnetic field inside the motor, thereby ensuring that the motor can work normally.

[0026] Specifically, when installing the magnetic steel 2, the magnetic steel 2 with the first inclined surface on the surface is sequentially placed inside the installation groove 101, and then the bar block 302 installed under the pressure plate 3 is aligned with the position of the groove 103 and sequentially placed. When the bar block 302 enters the groove 103, the surface of the bar block 302 begins to squeeze the elastic sheet 401, causing the elastic sheet 401 to deform and begin to push the clamping plate 402 to move synchronously, and begin to contact the surface of the magnetic steel 2 to clamp the magnetic steel 2, thereby achieving preliminary positioning; When the bar block 302 completely enters the groove 103, the installation of the pressing plate 3 is completed, and the second inclined surface of the lower surface of the pressing plate 3 contacts the first inclined surface of the upper surface of the magnetic steel 2, so that the magnetic steel 2 can be fixed for a second time, and then the pressing plate 3 is fixed to the surface of the rotor bracket 1 by bolts, so as to achieve the stability of the magnetic steel 2 and ensure the stability and uniformity of the magnetic field; When the pressure plate 3 is installed, the telescopic head 303 will begin to enter the interior of the power supply port 104, and then when the disc motor is started, the rotor bracket 1 will drive the magnet 2 to rotate. During the rotation process, the baffle 501 will collect the external air and transmit it to the interior of the connecting groove 3021 through the strip groove. When the disc motor is started, the external power supply will start to supply power to the power supply port 104, so that the groove 103 starts to supply power to the cooling plate 3022 and the second magnetic block 506, so that the cooling plate 3022 starts to cool, and then the gas inside the connecting groove 3021 is cooled. At the same time, the energized second magnetic block 506 will generate magnetism that repels the first magnetic block 505. The first magnetic block 505 drives the driving page 503 to start rotating, extracting the gas inside the connecting groove 3021 and transporting it to the interior of the compression groove 305, so that the cooled gas is compressed and passes into the interior of the cavity 102, and flows from the inside of the through hole to act on the bottom surface of the magnet 2, thereby achieving the purpose of cooling and improving the performance and working efficiency of the motor.

[0027] A disc motor comprises the disc motor rotor structure.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A disc-type motor rotor structure, comprising a rotor support (1), wherein a plurality of mounting grooves (101) are arranged around the surface of the rotor support (1) at equal intervals, and characterized in that: Also includes: The installation groove (101) is connected to a cavity (102) through a plurality of through holes formed on the bottom surface, and the through grooves are connected through a guide groove, and one end of the guide groove extends to the outside of the rotor bracket (1). A magnetic steel (2) is installed inside the installation groove (101), and a first inclined surface is formed on symmetrical edges of the upper surface of the magnetic steel (2). A pressing plate (3) is provided between two groups of the magnetic steel (2), and two groups of strip grooves are formed on the upper surface of the pressing plate (3), and a second inclined surface is formed on symmetrical edges of the lower surface of the pressing plate (3), as well as a matching piece (4) for assisting the pressing plate (3) in fixing the magnetic steel (2); The invention also comprises a plurality of heat dissipation mechanisms (5) for dissipating heat from the magnetic steel (2), the heat dissipation mechanisms (5) comprising a baffle (501) and a positioning ring (502), the interior of the positioning ring (502) being rotatably connected to a driving page (503), a surface of the driving page (503) being provided with a notch (504), the inner wall of the notch (504) being provided with a plurality of first magnetic blocks (505) equidistantly surrounding the inner wall, the outer side of the first magnetic block (505) being provided with a corresponding second magnetic block (506), and the second magnetic block (506) being fixedly mounted on the inner wall of the positioning ring (502).

2. A disc motor rotor structure according to claim 1, characterized in that: The surface of the rotor bracket (1) is provided with a plurality of groups of grooves (103) at equal intervals, and an inner wall of one side of the groove (103) is provided with a power supply port (104).

3. The disc motor rotor structure according to claim 1, characterized in that: The surface of the pressure plate (3) is provided with a plurality of groups of mounting holes (301) at equal intervals, and the mounting holes (301) are tightly connected to matching holes formed on the surface of the rotor support (1) via bolts.

4. A disc motor rotor structure according to claim 3, characterized in that: Two groups of strip blocks (302) are fixedly mounted on the lower surface of the pressing plate (3), and the strip blocks (302) are inserted into the interior of the groove (103); one end of the strip block (302) is telescopically connected to a telescopic head (303), and the telescopic head (303) is inserted into the interior of the power supply port (104); a round rod (304) is fixedly mounted on the lower end of the strip block (302), and a compression groove (305) is provided inside the round rod (304).

5. A disc motor rotor structure according to claim 4, characterized in that: A connecting groove (3021) is provided inside the strip block (302), and the plane structure of the connecting groove (3021) is a trapezoidal structure. The connecting groove (3021) is connected to a strip groove provided on the surface of the pressing plate (3), and two groups of cooling fins (3022) are symmetrically mounted on the inner wall of the connecting groove (3021).

6. The disc motor rotor structure according to claim 1, characterized in that: The mating piece (4) comprises an elastic sheet (401) symmetrically mounted on the inner wall of the groove (103); the elastic sheet (401) is in an L-shaped structure; the end of the elastic sheet (401) is movably connected to a clamping plate (402), and the clamping plate (402) is slidably matched with the bottom surface of the cavity (102).

7. The disc motor rotor structure according to claim 4, characterized in that: The baffle plate (501) is fixedly mounted on the upper surface of the pressing plate (3), and the baffle plate (501) is located directly above the strip groove.

8. The disc motor rotor structure according to claim 4, characterized in that: The second magnetic block (506) is electrically connected to the telescopic head (303), and opposite surfaces of the second magnetic block (506) and the first magnetic block (505) magnetically repel each other.

9. A disc motor, characterized in that: It comprises a disc motor rotor structure as claimed in any one of claims 1 to 8.

Images