Anti-drop rotor disc of disc-type motor

Abstract

The utility model relates to the field of disc-type motors, and discloses an anti-drop rotor disc of a disc-type motor, which comprises a frame body, support rods are fixedly connected to the outer side of the frame body, a permanent magnet is inserted between every two support rods, the permanent magnets are connected with the support rods through a protection mechanism, the protection mechanism comprises a blocking frame, and the blocking frame is provided with a baffle plate. The blocking frame is inserted between every two supporting rods, the multiple supporting rods are arranged, the distances between every two supporting rods are consistent, a triangular block is fixedly connected to the end, close to the frame body, of the blocking frame, and triangular notches are formed in the upper side and the lower side of the end, away from the frame body, of the permanent magnet. According to the permanent magnet fixing device, the retaining frame, the triangular block, the triangular notch, the fixing ring, the insertion hole, the first insertion groove, the second insertion groove and the insertion rod are arranged, so that the permanent magnet can be well fixed, the welding point of the insertion rod and the fixing ring is arranged on the side face, and therefore the effect that the permanent magnet is not prone to being damaged in the permanent magnet fixing process is achieved.

Description

Technical Field

[0001] The utility model relates to the field of disc motors, in particular to an anti-dropping rotor disc of a disc motor. Background Art

[0002] The disc motor, also known as the axial flux motor or disc motor, is a special structure of AC motor. Its design features are that the rotor and stator are both flat disc-shaped, and the direction of the main magnetic field is the same as the direction of the motor shaft, that is, axial flux. This structure makes the disc motor compact, small in size, light in weight, and high in torque density, and is particularly suitable for occasions with limited installation space.

[0003] The rotor structure of a disc motor is often divided into a support disc and a permanent magnet. For example, Chinese patent announcement number: CN113541359A discloses an anti-drop rotor disc of a disc motor, including a retaining frame, a fixing ring and a plurality of permanent magnets. The retaining frame includes a frame body and a plurality of support rods, the support rods extend outwardly from the periphery of the frame body, and a permanent magnet is fixed between two adjacent support rods. The fixing ring includes an inner ring and an outer ring made of different materials, the inner ring is an auxiliary ring, and the outer ring is a force ring. The inner ring is fixedly sleeved on the outer periphery of the permanent magnet, and the permanent magnet is fixed between the inner ring and the frame body, and the outer ring is sleeved on the outside of the inner ring; the rotor disc also includes a connecting assembly, and the inner ring is connected to the support rods through the connecting assembly. The above application document has the advantages that the fixing ring is not easy to fall off due to vibration, the magnetic steel is firmly installed, and the overall structural strength is high.

[0004] Although the above application document can better fix the inner ring and the support rod through the connecting piece, in the actual use process, after the permanent magnet is installed, the connecting piece is welded to the inner side of the inner ring. Since the upper and lower surfaces of the permanent magnet are connected to the outside, and the connecting piece is arranged on the upper and lower sides of the frame, it is difficult to shield the permanent magnet during the welding process. Therefore, the permanent magnet may be damaged due to the high temperature generated during the welding process, affecting the use of the equipment. Therefore, an anti-slip rotor disk of a disc motor is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an anti-dropping rotor disc of a disc motor, aiming to improve the problem of possible damage to the permanent magnets during the process of fixing the permanent magnets in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-slip rotor disk of a disk motor, comprising a frame, the outer side of the frame is fixedly connected to a support rod, permanent magnets are inserted between the two support rods, the permanent magnets and the support rods are connected by a protective mechanism, and the protective mechanism includes a baffle frame, which is inserted between the two support rods.

[0007] As a further description of the above technical solution:

[0008] The number of the support rods is set to be multiple, and the distances between any two of the support rods are consistent.

[0009] As a further description of the above technical solution:

[0010] A triangular block is fixedly connected to one end of the baffle frame close to the frame body, and triangular cutouts are provided on upper and lower sides of one end of the permanent magnet away from the frame body.

[0011] As a further description of the above technical solution:

[0012] The end of the support rod away from the frame is in contact with a fixing ring, the inner wall of the fixing ring is provided with a plug hole, the outer wall of the permanent magnet close to the support rod is provided with a slot 1, the outer wall of the support rod is provided with a slot 2, the inner walls of the jack slot 1 and slot 2 are in contact with an insertion rod, and the insertion rod is connected to the permanent magnet through a fixing component.

[0013] As a further description of the above technical solution:

[0014] The fixing assembly includes a control rod, the outer wall of which penetrates and is slidably connected to the inner wall of the insertion rod, a connecting rod is hinged on one end of the control rod close to the permanent magnet, an insert block is hinged on one end of the connecting rod away from the control rod, the outer wall of the insert block penetrates and is slidably connected to the inner wall of the insertion rod, and a socket is opened on the outer wall of the permanent magnet.

[0015] As a further description of the above technical solution:

[0016] The upper surface and the lower surface of the support rod are provided with protrusions at one end close to the permanent magnet.

[0017] As a further description of the above technical solution:

[0018] The shape of the triangular block is an arc that is consistent with the curvature and length of the outer wall of the permanent magnet, and the cross-section shape of the triangular block is a triangle.

[0019] As a further description of the above technical solution:

[0020] The shape of the insertion rod is a hollow cuboid, and the material of the insertion rod is metal.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the permanent magnet can be better fixed by setting the blocking frame, triangular block, triangular incision, fixing ring, jack, slot one, slot two and plug rod, and the welding point between the plug rod and the fixing ring is set on the side, so as to ensure that the permanent magnet is not easily damaged during the welding process of the plug rod, thereby achieving the effect of not easily damaging the permanent magnet during the process of fixing the permanent magnet.

[0023] 2. In the utility model, by setting the insertion rod, control rod, connecting rod, insertion block and socket, the insertion block can enter the socket after the insertion rod enters slot one and slot two, so that when the permanent magnet generates a force to move outward, it is necessary to overcome the squeezing of the insertion block on the inner wall of the socket, thereby achieving the effect of hindering the permanent magnet from moving outward. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure disassembly of the overall structure of the utility model;

[0026] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the overall structure of the utility model;

[0027] Figure 4 For the utility model Figure 3 A magnified schematic diagram of the three-dimensional structure of part A;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the permanent magnet in the utility model.

[0029] Legend:

[0030] 1. Frame; 2. Support rod; 3. Protection mechanism; 4. Permanent magnet; 5. Fixing assembly; 31. Block frame; 32. Triangular block; 33. Triangular cutout; 34. Fixing ring; 35. Socket; 36. Slot one; 37. Slot two; 38. Plug rod; 51. Control rod; 52. Connecting rod; 53. Plug block; 54. Socket. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1 - Figure 3 The utility model provides an embodiment: an anti-slip rotor disk of a disk motor, including a frame 1, the frame 1 is in the shape of a circular ring, and a support rod 2 is fixedly connected to the outer side of the frame 1. The number of the support rods 2 is set to be multiple, and the distance between the two support rods 2 is consistent. A permanent magnet 4 is inserted between the two support rods 2. The upper surface and the lower surface of the support rod 2 are provided with a protrusion at one end close to the permanent magnet 4. The setting of the protrusion ensures that the permanent magnet 4 can be better installed in the position between the two support rods 2 and is not easy to fall off.

[0033] Reference Figure 1 - Figure 3 The permanent magnet 4 is connected to the support rod 2 through a protective mechanism 3, and the protective mechanism 3 includes a baffle 31, the baffle 31 is concave in shape, and is inserted between the two support rods 2. The baffle 31 is arranged at one end of the permanent magnet 4 away from the frame 1, and the inner side of the baffle 31 fits with the outer side of the permanent magnet 4. A triangular block 32 is fixedly connected to one end of the baffle 31 close to the frame 1, and the shape of the triangular block 32 is an arc with the same curvature and length as the outer wall of the permanent magnet 4. The cross-sectional shape of the triangular block 32 is a triangle, and triangular cutouts 33 are provided on the upper and lower sides of the end of the permanent magnet 4 away from the frame 1. The shape of the triangular cutout 33 fits with the triangular block 32. By setting the triangular block 32 and the triangular cutout 33, it is ensured that when the permanent magnet 4 moves outward, the triangular block 32 can be squeezed, so that the permanent magnet 4 can generate a force moving toward the middle in the up and down directions, thereby preventing the permanent magnet 4 from falling off from the up and down directions.

[0034] Reference Figure 2 , Figure 3 and Figure 5 The end of the support rod 2 away from the frame 1 is in contact with a fixing ring 34, the inner side of the fixing ring 34 is in contact with the outer wall of the permanent magnet 4, a plug hole 35 is provided on the inner wall of the fixing ring 34, a slot 1 36 is provided on the outer wall of the permanent magnet 4 close to the support rod 2, a slot 2 37 is provided on the outer wall of the support rod 2, the cross-sectional shape of the slot 1 36 and the slot 2 37 is consistent with the cross-sectional shape of the plug hole 35, the inner walls of the slot 1 36 and the slot 2 37 of the plug hole 35 are in contact with an insertion rod 38, the shape of the insertion rod 38 is consistent with the shape of the plug hole 35, the shape of the insertion rod 38 is a hollow cuboid, and the material of the insertion rod 38 is metal.

[0035] Reference Figure 3 - Figure 5The plug rod 38 is connected to the permanent magnet 4 through a fixing assembly 5, which includes a control rod 51. The outer wall of the control rod 51 passes through and is slidably connected to the inner wall of the plug rod 38. The control rod 51 is in the shape of a cuboid. A connecting rod 52 is hinged at one end of the control rod 51 close to the permanent magnet 4, and an insert block 53 is hinged at one end of the connecting rod 52 away from the control rod 51. The outer wall of the insert block 53 passes through and is slidably connected to the inner wall of the plug rod 38. A socket 54 is provided on the outer wall of the permanent magnet 4. The shape and position of the socket 54 match the shape and position of the insert block 53.

[0036] Working principle: When using, the staff installs the permanent magnet 4 between the two support rods 2. Since the upper and lower ends of the support rods 2 are provided with protrusions, the permanent magnet 4 will not fall off.

[0037] When the permanent magnet 4 is installed, the staff installs the baffle frame 31 and makes the triangular block 32 inside the baffle frame 31 fit with the triangular cutout 33. When the installation is completed, the staff puts the fixing ring 34 on the outside of the baffle frame 31. When the fixing ring 34 is fixed, the middle part of the fixing ring 34 fits with the outer wall of the permanent magnet 4.

[0038] When the installation is completed, the staff inserts the rod 38 into the hole 35, and when the rod 38 is inserted, the block 53 is located on the side close to the permanent magnet 4. When inserting the rod 38, the staff first pulls the control rod 51 outward, so that the control rod 51 pulls the connecting rod 52 to move backward close to the end of the control rod 51, so that the connecting rod 52 is in a tilted state, so that the block 53 moves to a state where it is completely inside the rod 38.

[0039] After the insertion rod 38 enters the insertion hole 35, the insertion rod 38 continues to be pushed inward until the insertion rod 38 completely enters the interior of the slot 1 36 and the slot 2 37. At this time, in addition to the upper and lower end protrusions of the support rod 2 that limit the permanent magnet 4 in the up and down directions, there are also upper and lower direction limits caused by the contact between the insertion rod 38 and the inner wall of the slot 2 37.

[0040] At the same time, after the insertion rod 38 enters the insertion hole 35, the staff also needs to push the control rod 51 inward, so that the control rod 51 drives the connecting rod 52 to move toward the direction close to the frame 1, so that the connecting rod 52 pushes the insertion block 53 to move in the direction away from the connecting rod 52, so that the insertion block 53 enters the socket 54. At this time, because the insertion block 53 is in contact with the inner wall of the socket 54, when the permanent magnet 4 generates a force to move outward, it needs to overcome the obstruction of the insertion block 53 to it, thereby achieving the effect of preventing the permanent magnet 4 from moving outward.

[0041] When the movement is completed, the staff welds the insertion rod 38 and the control rod 51 from the side while protecting the upper and lower sides of the frame 1, so that the positions of the insertion rod 38 and the control rod 51 are fixed. Therefore, during use, the positions of the insertion rod 38 and the control rod 51 cannot be changed, and since the welding point is set on the side, it is not easy to damage the permanent magnet 4 during the welding process.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-drop rotor disc of a disc motor, comprising a frame (1), characterized in that: The outer side of the frame (1) is fixedly connected to a support rod (2), and a permanent magnet (4) is inserted between two of the support rods (2). The permanent magnet (4) and the support rod (2) are connected via a protective mechanism (3), and the protective mechanism (3) comprises a baffle (31), and the baffle (31) is inserted between two of the support rods (2).

2. The anti-slip rotor disk of a disk motor according to claim 1, characterized in that: The number of the support rods (2) is set to be multiple, and the spacing between any two of the support rods (2) is consistent.

3. The anti-slip rotor disk of a disk motor according to claim 1, characterized in that: A triangular block (32) is fixedly connected to one end of the baffle frame (31) close to the frame body (1), and triangular cutouts (33) are provided on the upper and lower sides of one end of the permanent magnet (4) away from the frame body (1).

4. The anti-slip rotor disk of a disk motor according to claim 1, characterized in that: The end of the support rod (2) away from the frame (1) contacts with a fixing ring (34), the inner wall of the fixing ring (34) is provided with a plug hole (35), the outer wall of the permanent magnet (4) close to the support rod (2) is provided with a slot 1 (36), the outer wall of the support rod (2) is provided with a slot 2 (37), the inner walls of the slot 1 (36) and the slot 2 (37) of the plug hole (35) are in contact with an insertion rod (38), and the insertion rod (38) is connected to the permanent magnet (4) via a fixing component (5).

5. The anti-dropout rotor disk of a disk motor according to claim 4, characterized in that: The fixing assembly (5) comprises a control rod (51), the outer wall of which penetrates through and is slidably connected to the inner wall of the insertion rod (38), the end of the control rod (51) close to the permanent magnet (4) is hinged with a connecting rod (52), the end of the connecting rod (52) away from the control rod (51) is hinged with an insertion block (53), the outer wall of the insertion block (53) penetrates through and is slidably connected to the inner wall of the insertion rod (38), and the outer wall of the permanent magnet (4) is provided with a socket (54).

6. The anti-dropout rotor disk of a disk motor according to claim 1, characterized in that: The upper surface and the lower surface of the support rod (2) are provided with protrusions at one end close to the permanent magnet (4).

7. The anti-dropout rotor disk of a disk motor according to claim 1, characterized in that: The shape of the triangular block (32) is an arc with the same curvature and length as the outer wall of the permanent magnet (4), and the cross-sectional shape of the triangular block (32) is a triangle.

8. The anti-slip rotor disk of a disk motor according to claim 4, characterized in that: The shape of the insertion rod (38) is a hollow rectangular parallelepiped, and the material of the insertion rod (38) is metal.

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