Rotor tangential magnetic field mounting structure

Abstract

The utility model discloses a rotor tangential magnetic field installation structure which comprises a rotor ring, a plurality of magnetic conductive blocks and a plurality of magnetic blocks, the rotor ring is provided with an installation groove, the length of the installation groove is larger than that of the magnetic conductive blocks, and the magnetic conductive blocks are detachably arranged on the rotor ring through the installation groove. The magnetic conductive blocks are provided with extension plates, clamping grooves are formed between the extension plates and the side walls of the magnetic conductive blocks, a fixed state and a movable state are formed among the rotor ring, the magnetic conductive blocks and the magnetic blocks, in the fixed state, the adjacent clamping grooves are opposite, the magnetic blocks are inserted between the adjacent magnetic conductive blocks, one ends of the magnetic blocks are attached to the magnetic conductive blocks and the extension plates, and the other ends of the magnetic blocks are attached to the rotor ring. The integrated rotor tangential magnetic ring structure can be obtained by inserting the magnetic blocks into the clamping grooves formed by the adjacent magnetic conductive blocks, so that the situation that the motor breaks down due to the fact that the magnetic blocks and the magnetic conductive blocks fall off is prevented, and the situation that the motor is loud in noise and shakes due to the fact that the tolerance accumulation of the magnetic conductive blocks and the magnetic blocks is large is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of outer rotor ring motors, in particular to a rotor tangential magnetic field installation structure. Background Art

[0002] With the continuous development of outer rotor ring motors, the requirements for motor quality, power density, torque and other indicators are getting higher and higher. The emergence of a rotor tangential magnetic field mounting structure can ensure the motor power density, output a large torque, and meet customer requirements for motors, greatly reducing quality risks caused by structural problems.

[0003] At present, the rotor ring is mainly fixed by a magnetic steel surface-mounted structure. When using an outer rotor ring motor, the magnetic blocks and magnetic conductive blocks fall off, causing motor failure, so there is a need for improvement. Summary of the invention

[0004] The utility model provides a new rotor tangential magnetic field installation structure to solve the defects in the prior art that the magnetic steel surface-mounted structure makes the magnetic blocks and magnetic conductive blocks easy to fall off and cause motor failure.

[0005] In order to solve the above technical problems, the utility model is implemented through the following technical solutions:

[0006] A rotor tangential magnetic field installation structure comprises a rotor ring, a magnetic conductive block and a magnetic block, wherein the number of the magnetic conductive blocks and the magnetic blocks is multiple, the rotor ring is provided with a mounting groove, the length of the mounting groove is greater than the length of the magnetic conductive block, and the magnetic conductive block is detachably arranged on the rotor ring through the mounting groove; an extension plate is provided on the magnetic conductive block, a retaining groove is formed between the extension plate and the side wall of the magnetic conductive block, a fixed state and an active state are formed between the rotor ring, the magnetic conductive block and the magnetic block, and in the fixed state, adjacent retaining grooves are opposite, the magnetic block is inserted between adjacent magnetic conductive blocks, one end of the magnetic block is in contact with the magnetic conductive block and the extension plate, and the other end of the magnetic block is in contact with the rotor ring.

[0007] The installation grooves enable precise positioning of the magnetic blocks. By inserting the magnetic blocks into the slots formed by adjacent magnetic blocks, an integrated rotor tangential magnetic ring structure can be obtained, which improves the convenience, stability and accuracy of installing the magnetic blocks and magnetic blocks on the rotor ring, and prevents the magnetic blocks and magnetic blocks from falling off and causing motor failures. Because the magnetic blocks are distributed at intervals and evenly installed in the rotor ring, the large cumulative tolerances of the magnetic blocks and magnetic blocks, which causes loud noise and jitter in the motor, can be avoided.

[0008] Preferably, in the above-described rotor tangential magnetic field installation structure, the magnetic conductive block includes a bottom block, a connecting block and an upper block, the connecting block is distributed between the bottom block and the upper block, the width of the bottom block and the upper block is greater than the width of the mounting groove, the extension plate is arranged at one end of the bottom block away from the connecting block, the extension plate extends along the width direction of the bottom block, and the slot is L-shaped; in a fixed state, the ends of the upper block and the bottom block are respectively pressed against the outer surface and the inner surface of the rotor ring, the connecting block is inserted into the mounting groove and adheres to the inner side wall of the mounting groove, the lower surface of the magnetic block is adhered to the extension plate, the upper surface of the magnetic block is adhered to the inner surface of the rotor ring, and the side wall of the magnetic block is adhered to the bottom block.

[0009] The magnetic block is limited by the plug-in cooperation of the mounting groove and the connecting block. The bottom block and the upper block are respectively pressed against the inner surface and the outer surface of the rotor ring, which prevents the magnetic block from being separated in the horizontal direction when the rotor ring rotates, and further improves the stability of the magnetic block. Generally, the magnetic block is block-shaped and the slot is L-shaped, so that the magnetic block can be fixed more closely between the magnetic blocks, thereby improving the stability of the installation of the magnetic block and the magnetic block.

[0010] Preferably, in the above-mentioned rotor tangential magnetic field mounting structure, the rotor ring comprises a top plate, a lower ring, a vertical plate and a connecting plate, and the number of the vertical plates and the connecting plates is multiple, and the vertical plates and the connecting plates correspond to each other one by one, and the vertical plates are circumferentially arranged on the lower ring and coaxially arranged with the lower ring, and the adjacent vertical plates and the lower ring are surrounded to form the mounting groove; the connecting plates are circumferentially distributed, the upper ends of the connecting plates are bent inward and arranged on the top plate, and the lower ends of the connecting plates are arranged on the inner surface of the vertical plates; an adjustment plate is arranged on the inner surface of the vertical plate, and the end of the adjustment plate is abutted against the lower end of the connecting plate, and in a fixed state, the upper end of the bottom block is attached to the adjustment plate, and the magnetic block is inserted between adjacent bottom blocks and abutted against the connecting plate.

[0011] When in a fixed state, the end of the magnetic block abuts against the connecting plate, thereby limiting the insertion depth of the magnetic block. The inner diameter of the integrated rotor tangential magnetic ring structure is adjusted by controlling the size of the adjusting plate, thereby improving the accuracy of the integrated rotor tangential magnetic ring structure during installation. The setting of the connecting plate realizes the separation of the opening of the installation slot, making it convenient to insert the magnetic block into the installation slot.

[0012] Preferably, in the above-mentioned rotor tangential magnetic field installation structure, two guide slopes are provided at the end of the adjustment plate, the guide slopes are provided on both sides of the connecting plate, the height of the guide slopes gradually decreases towards the top plate, and the magnetic conductive block moves along the guide slopes.

[0013] The setting of the guide slope realizes a smooth transition at the junction of the vertical plate and the adjustment plate, thereby playing a guiding role when the magnetic block is moved and placed on the adjustment plate, thereby improving the smoothness of the installation of the magnetic block.

[0014] Preferably, in the above-described rotor tangential magnetic field mounting structure, the mounting groove includes a guide zone, a transition zone and a limit zone, the width of the guide zone is greater than the width of the limit zone, the transition zone is arranged between the guide zone and the limit zone, and the width of the transition zone gradually decreases towards the limit zone.

[0015] The provision of the guide area and the transition area increases the width of the opening of the installation slot, further improving the smoothness of inserting the magnetic conductive block into the installation slot.

[0016] Preferably, in the above-mentioned rotor tangential magnetic field installation structure, a plurality of isolation blocks are arranged on the lower ring, the isolation blocks are distributed in the limiting area, and there are gaps between the isolation blocks and adjacent vertical plates.

[0017] The isolation block can play a role in avoiding air when the magnetic block is installed in the installation groove, which facilitates the installation of the magnetic block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0020] Figure 3 This is a schematic diagram of the structure of the utility model showing that the magnetic block, the magnetic conductive block and the rotor ring are in a fixed state;

[0021] Figure 4 It is a structural schematic diagram of the magnetic conductive block and the extension plate of the utility model;

[0022] Figure 5 It is a partial cross-sectional view of the guide slope, the adjustment plate and the isolation block of the utility model. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-5 The present invention is further described in detail with the following specific embodiments, but they are not intended to limit the present invention:

[0024] Example 1

[0025] like Figure 1-Figure 5As shown, a rotor tangential magnetic field installation structure includes a rotor ring 1, a magnetic conductive block 2 and a magnetic block 3, wherein the number of the magnetic conductive block 2 and the magnetic block 3 is multiple, and a mounting groove 4 is opened on the rotor ring 1, the length of the mounting groove 4 is greater than the length of the magnetic conductive block 2, and the magnetic conductive block 2 is detachably arranged on the rotor ring 1 through the mounting groove 4; an extension plate 5 is provided on the magnetic conductive block 2, and a clamping groove 6 is formed between the extension plate 5 and the side wall of the magnetic conductive block 2, and a fixed state and an active state are formed between the rotor ring 1, the magnetic conductive block 2 and the magnetic block 3. In the fixed state, adjacent clamping grooves 6 are opposite, and the magnetic block 3 is inserted between adjacent magnetic conductive blocks 2, and one end of the magnetic block 3 is in contact with the magnetic conductive block 2 and the extension plate 5, and the other end of the magnetic block 3 is in contact with the rotor ring 1.

[0026] Preferably, the magnetic conductive block 2 includes a bottom block 21, a connecting block 22 and an upper block 23, the connecting block 22 is distributed between the bottom block 21 and the upper block 23, the width of the bottom block 21 and the upper block 23 is greater than the width of the mounting groove 4, the extension plate 5 is arranged at one end of the bottom block 21 away from the connecting block 22, the extension plate 5 extends along the width direction of the bottom block 21, and the slot 6 is L-shaped; in a fixed state, the ends of the upper block 23 and the bottom block 21 are respectively pressed against the outer surface and the inner surface of the rotor ring 1, the connecting block 22 is inserted into the mounting groove 4 and is in contact with the inner wall of the mounting groove 4, the lower surface of the magnetic block 3 is in contact with the extension plate 5, the upper surface of the magnetic block 3 is in contact with the inner surface of the rotor ring 1, and the side wall of the magnetic block 3 is in contact with the bottom block 21.

[0027] Preferably, the rotor ring 1 includes a top plate 11, a lower ring 12, a vertical plate 13 and a connecting plate 14, and the number of the vertical plates 13 and the connecting plates 14 is multiple, and the vertical plates 13 and the connecting plates 14 correspond to each other one by one. The vertical plates 13 are circumferentially arranged on the lower ring 12 and coaxially arranged with the lower ring 12, and the adjacent vertical plates 13 and the lower ring 12 are surrounded to form the mounting groove 4; the connecting plate 14 is circumferentially distributed, the upper end of the connecting plate 14 is bent inwardly and arranged on the top plate 11, and the lower end of the connecting plate 14 is arranged on the inner surface of the vertical plate 13; the inner surface of the vertical plate 13 is provided with an adjusting plate 131, and the end of the adjusting plate 131 is abutted against the lower end of the connecting plate 14, and in a fixed state, the upper end of the bottom block 21 is attached to the adjusting plate 131, and the magnetic block 3 is inserted between adjacent bottom blocks 21 and abutted against the connecting plate 14.

[0028] Preferably, two guide slopes 132 are provided at the end of the adjustment plate 131 . The guide slopes 132 are provided on both sides of the connecting plate 14 . The height of the guide slopes 132 gradually decreases toward the top plate 11 , and the magnetic block 2 moves along the guide slopes 132 .

[0029] Preferably, the mounting groove 4 includes a guide area 41, a transition area 42 and a limit area 43, the width of the guide area 41 is greater than the width of the limit area 43, the transition area 42 is arranged between the guide area 41 and the limit area 43, and the width of the transition area 42 gradually decreases toward the limit area 43.

[0030] Preferably, a plurality of isolation blocks 121 are provided on the lower ring 12 . The isolation blocks 121 are distributed in the limiting area 43 , and there are gaps between the isolation blocks 121 and adjacent vertical plates 13 .

[0031] Specifically, the number of mounting slots 4 can be increased or decreased according to motor requirements. The number of mounting slots 4 can be 20, 24, 40, 50, 52, 60, etc. By controlling the number of mounting slots 4, a rotor tangential magnetic ring structure with different pole numbers of the motor can be formed.

[0032] More specifically, Figure 1-5 As shown, when installing the magnetic blocks 2 and 3 on the rotor ring 1, first align the connecting block 22 with the guide area 41, then move the magnetic block 2 toward the mounting groove 4 until the end of the magnetic block 2 is pressed against the isolation block 121, and then the magnetic block 2 can be installed on the rotor ring 1, and then insert the magnetic block 3 from the side of the lower ring 12 along the adjustment plate 131 between the adjacent magnetic blocks 2, and when the magnetic block 2 moves toward the connecting plate 14 until it is pressed against the connecting plate 14, the magnetic blocks 2 and 3 can be circumferentially installed on the rotor ring 1.

[0033] like Figure 1-Figure 4 As shown, the magnetic block 3 is block-shaped, the slot 6 is L-shaped, the magnetic blocks 2 and 3 are spaced apart on the inner surface of the rotor ring 1, and the magnetic block 2 is precisely positioned through the mounting slot 4, thereby obtaining an integrated rotor tangential magnetic ring structure with a stable structure and high precision, thereby preventing the motor from malfunctioning due to the falling off of the magnetic blocks 2 and 3 during use.

[0034] like Figure 1 , Figure 2 As shown, the inner diameter of the rotor ring 1 can be adjusted by controlling the thickness of the adjustment plate 131, which facilitates the subsequent insertion and fixation of the integrated rotor tangential magnetic ring structure.

[0035] In conclusion, the above is only a preferred embodiment of the present invention, and all equivalent changes and modifications made within the scope of the patent application for the present invention should fall within the scope of the present invention.

Claims

1. A rotor tangential magnetic field installation structure, characterized in that: The invention comprises a rotor ring (1), a magnetic block (2) and a magnetic block (3), wherein the number of the magnetic block (2) and the magnetic block (3) is plural, the rotor ring (1) is provided with a mounting groove (4), the length of the mounting groove (4) is greater than the length of the magnetic block (2), and the magnetic block (2) is detachably mounted on the rotor ring (1) through the mounting groove (4); an extension plate (5) is arranged on the magnetic block (2), a retaining groove (6) is formed between the extension plate (5) and the side wall of the magnetic block (2), and a fixed state and an active state are formed between the rotor ring (1), the magnetic block (2) and the magnetic block (3), and in the fixed state, adjacent retaining grooves (6) are opposite, the magnetic block (3) is inserted between adjacent magnetic blocks (2), one end of the magnetic block (3) is in contact with the magnetic block (2) and the extension plate (5), and the other end of the magnetic block (3) is in contact with the rotor ring (1).

2. A rotor tangential magnetic field installation structure according to claim 1, characterized in that: The magnetic conductive block (2) comprises a bottom block (21), a connecting block (22) and an upper block (23); the connecting block (22) is distributed between the bottom block (21) and the upper block (23); the width of the bottom block (21) and the upper block (23) is greater than the width of the mounting groove (4); the extension plate (5) is arranged at one end of the bottom block (21) away from the connecting block (22); the extension plate (5) extends along the width direction of the bottom block (21); and the clamping groove (6) is L-shaped; in a fixed state, the ends of the upper block (23) and the bottom block (21) are respectively pressed against the outer surface and the inner surface of the rotor ring (1); the connecting block (22) is inserted into the mounting groove (4) and is in contact with the inner side wall of the mounting groove (4); the lower surface of the magnetic block (3) is in contact with the extension plate (5); the upper surface of the magnetic block (3) is in contact with the inner surface of the rotor ring (1); and the side wall of the magnetic block (3) is in contact with the bottom block (21).

3. A rotor tangential magnetic field installation structure according to claim 2, characterized in that: The rotor ring (1) comprises a top plate (11), a lower ring (12), a vertical plate (13) and a connecting plate (14); the vertical plates (13) and the connecting plates (14) are provided in a plurality, the vertical plates (13) and the connecting plates (14) correspond to each other one by one, the vertical plates (13) are circumferentially arranged on the lower ring (12) and are coaxially arranged with the lower ring (12); adjacent vertical plates (13) and the lower ring (12) are arranged around to form the mounting groove (4); the connecting plates (14) are circumferentially arranged to form a plurality of vertical plates (13) and a plurality of connecting plates (14); The upper end of the connecting plate (14) is bent inwardly and arranged on the top plate (11), and the lower end of the connecting plate (14) is arranged on the inner surface of the vertical plate (13); an adjusting plate (131) is arranged on the inner surface of the vertical plate (13), and the end of the adjusting plate (131) abuts against the lower end of the connecting plate (14); in a fixed state, the upper end of the bottom block (21) is attached to the adjusting plate (131), and the magnetic block (3) is inserted between adjacent bottom blocks (21) and abuts against the connecting plate (14).

4. A rotor tangential magnetic field installation structure according to claim 3, characterized in that: Two guide slopes (132) are arranged at the end of the adjustment plate (131), and the guide slopes (132) are arranged on both sides of the connection plate (14). The height of the guide slopes (132) gradually decreases towards the top plate (11), and the magnetic conductive block (2) moves along the guide slopes (132).

5. A rotor tangential magnetic field installation structure according to claim 3, characterized in that: The mounting groove (4) comprises a guide area (41), a transition area (42) and a limit area (43); the width of the guide area (41) is greater than the width of the limit area (43); the transition area (42) is arranged between the guide area (41) and the limit area (43); and the width of the transition area (42) gradually decreases towards the limit area (43).

6. A rotor tangential magnetic field installation structure according to claim 5, characterized in that: A plurality of isolation blocks (121) are arranged on the lower ring (12); the isolation blocks (121) are distributed in the limiting area (43); and there are gaps between the isolation blocks (121) and adjacent vertical plates (13).

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