Rotor magnetic field mounting structure

Abstract

The utility model discloses a rotor magnetic field mounting structure, which comprises a rotor, a plurality of magnetic conductive blocks and magnetic strips, and further comprises a mounting ring arranged on the rotor, the mounting ring and the rotor are coaxially arranged, a plurality of guide grooves are formed in the mounting ring, insertion grooves in one-to-one correspondence with the guide grooves are formed in the rotor, and the insertion grooves are communicated with the guide grooves; each magnetic conductive block comprises a bottom block, a connecting block and an upper block, the magnetic conductive blocks, the rotor and the magnetic strips form an installation state and a movable state, in the installation state, the connecting blocks are inserted into the insertion grooves, the upper blocks penetrate out of the guide grooves, the upper blocks and the bottom blocks abut against the surface of the rotor, and limiting cavities are formed between the adjacent magnetic conductive blocks and the rotor; and the magnetic strips are inserted into the limiting cavities and are in plug-in fit with the limiting cavities. The magnetic conductive blocks are installed on the rotor through the inserting grooves, the magnetic strips are inserted into the limiting cavities to be fixed, the convenience of installation of the magnetic conductive blocks and the magnetic strips is improved, the bottom block and the upper block can limit the magnetic conductive blocks, and the situation that the magnetic conductive blocks and the magnetic strips are disengaged from the rotor is prevented.

Description

Technical Field

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

[0002] With the continuous development of motors, the requirements for motor quality, power density, torque and other indicators are getting higher and higher. In the prior art, the rotor used in the motor is fixed with a magnetic steel surface mount structure. When in use, the magnetic block and the magnetic conductive block are easy to fall off the rotor. When installing multiple magnetic conductive blocks and magnetic blocks, the installation process is relatively cumbersome, so it is necessary to improve this. Summary of the invention

[0003] The utility model provides a new rotor magnetic field installation structure to solve the defects in the prior art such as the use of a magnetic steel surface-mounted structure which makes the magnetic guide block and the magnetic block easy to fall off and the installation process of the magnetic guide block and the magnetic block is relatively complicated.

[0004] In order to solve the above technical problems, the utility model is implemented through the following technical solutions:

[0005] A rotor magnetic field installation structure comprises a rotor, a plurality of magnetic conductive blocks and magnetic strips, and also comprises a mounting ring arranged on the outer side wall of the rotor, the mounting ring and the rotor are coaxially arranged, the mounting ring is provided with a plurality of guide grooves, the rotor is provided with plug-in grooves corresponding to the guide grooves one by one, and the plug-in grooves are connected with the guide grooves; the magnetic conductive block comprises a bottom block, a connecting block and an upper block, the width of the bottom block and the upper block is greater than the width of the connecting block, the width of the connecting block is adapted to the width of the plug-in groove, an installation state and an active state are formed between the magnetic conductive block, the rotor and the magnetic strip, in the installation state, the connecting block is inserted into the plug-in groove, the upper block passes through the guide groove, the upper block and the bottom block are both against the surface of the rotor, a limited position cavity is formed between the inner surfaces of the adjacent magnetic conductive blocks and the rotor, the magnetic strip is inserted into the limited position cavity and plugged in.

[0006] The magnetic blocks are installed on the rotor through the plug-in slots, and the magnetic strips are inserted between adjacent magnetic blocks for clamping and fixing, thereby improving the convenience of installation of the magnetic blocks and magnetic strips. The guiding effect on the connecting blocks is achieved through the plug-in cooperation of the guide slots and the upper blocks, which facilitates the insertion of the connecting blocks into the plug-in slots. The bottom block and the upper block are pressed against the surface of the rotor to limit the magnetic blocks along the inner diameter direction of the rotor, thereby improving the stability of the magnetic blocks and preventing the magnetic blocks and magnetic strips from detaching from the rotor.

[0007] Preferably, in the above-mentioned rotor magnetic field mounting structure, the plug-in slot includes an open area and a strip area, the open area and the strip area are distributed from outside to inside, the width of the open area is greater than the width of the strip area, and the open area is connected to the guide slot.

[0008] The open area facilitates the insertion of the magnetic block into the plug-in slot, further improving the convenience of installation.

[0009] Preferably, in the above-mentioned rotor magnetic field installation structure, a positioning block is provided on the inner surface of the rotor, and in the installed state, the positioning block is opposite to the limiting cavity, and the magnetic strip is against the positioning block.

[0010] The setting of the positioning block limits the insertion depth of the magnetic stripe, improves the accuracy of the installation position of the magnetic stripe, and facilitates subsequent installation with other accessories.

[0011] Preferably, in the above-mentioned rotor magnetic field mounting structure, a yield slope is provided at one end of the rotor away from the positioning block, the yield slope is provided on the inner surface of the rotor, and the end of the yield slope close to the positioning block is inclined inwards.

[0012] The thickness of the end of the rotor close to the guide groove is reduced by the yield slope, so that when the connecting block is inserted into the plug-in groove, the upper block and the bottom block are not easy to collide with the end of the rotor, further improving the convenience of installation.

[0013] Preferably, in the above-described rotor magnetic field mounting structure, the lower inner wall of the guide groove is lower than the outer wall of the rotor, a transition surface is provided between the lower inner wall of the guide groove and the outer surface of the rotor, one end of the transition surface is provided on the outer wall of the rotor, and the other end of the transition surface is provided on the lower inner wall of the guide groove.

[0014] The upper block can smoothly pass through the guide groove along the transition surface and move along the outer side wall of the rotor, which further improves the convenience of installing the magnetic conductive block.

[0015] Preferably, in the above-described rotor magnetic field mounting structure, a limiting plate is provided on the base block, the length direction of the limiting plate extends along the length direction of the magnetic conductive block, an L-shaped groove is formed between the limiting plate and the base block, and in the installed state, the magnetic strip is inserted into the L-shaped groove and abuts against the upper surface of the limiting plate.

[0016] The setting of the limiting plate realizes the limiting of the upper end of the magnetic strip, so that the magnetic strip can be limited in the limiting cavity, further improving the stability of the magnetic strip during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the explosion structure of the utility model;

[0018] Figure 2 It is a partial cross-sectional view of the utility model in an installed state;

[0019] Figure 3It is a schematic diagram of the local structure of the utility model in the installation state;

[0020] Figure 4 It is a structural schematic diagram of the magnetic conductive block and magnetic strip of the utility model. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4 The present invention is further described in detail with the following specific embodiments, but they are not intended to limit the present invention:

[0022] Example 1

[0023] like Figure 1-Figure 4 As shown, a rotor magnetic field installation structure includes a rotor 1, a plurality of magnetic conductive blocks 2 and magnetic strips 3, and also includes a mounting ring 4 arranged on the outer wall of the rotor 1, the mounting ring 4 is coaxially arranged with the rotor 1, a plurality of guide grooves 41 are opened on the mounting ring 4, and a plug-in groove 11 corresponding to the guide grooves 41 is opened on the rotor 1, and the plug-in groove 11 is connected to the guide groove 41; the magnetic conductive block 2 includes a bottom block 21, a connecting block 22 and an upper block 23, and the width of the bottom block 21 and the upper block 23 is greater than the connecting block 22. The width of the connecting block 22 is adapted to the width of the plug-in slot 11. An installation state and an active state are formed between the magnetic conductive block 2, the rotor 1, and the magnetic strip 3. In the installation state, the connecting block 22 is inserted into the plug-in slot 11, and the upper block 23 passes through the guide slot 41. The upper block 23 and the bottom block 21 are both against the surface of the rotor 1. A limiting cavity 5 is formed between the inner surfaces of the adjacent magnetic conductive blocks 2 and the rotor 1, and the magnetic strip 3 is inserted into the limiting cavity 5 and plugged in.

[0024] Preferably, the plug-in slot 11 includes an open area 111 and a strip area 112 , the open area 111 and the strip area 112 are distributed from outside to inside, the width of the open area 111 is greater than the width of the strip area 112 , and the open area 111 is connected to the guide slot 41 .

[0025] Preferably, a positioning block 6 is provided on the inner surface of the rotor 1 . In the installed state, the positioning block 6 is directly opposite to the limiting cavity 5 , and the magnetic strip 3 is against the positioning block 6 .

[0026] Preferably, a clearance slope 12 is provided at one end of the rotor 1 away from the positioning block 6 . The clearance slope 12 is provided on the inner surface of the rotor 1 , and the end of the clearance slope 12 close to the positioning block 6 is inclined inwards.

[0027] Preferably, the lower inner wall of the guide groove 41 is lower than the outer wall of the rotor 1, and a transition surface 7 is provided between the lower inner wall of the guide groove 41 and the outer surface of the rotor 1, one end of the transition surface 7 is provided on the outer wall of the rotor 1, and the other end of the transition surface 7 is provided on the lower inner wall of the guide groove 41.

[0028] Preferably, a limiting plate 211 is provided on the bottom block 21, and the length direction of the limiting plate 211 extends along the length direction of the magnetic conductive block 2. An L-shaped groove 8 is formed between the limiting plate 211 and the bottom block 21. In the installed state, the magnetic strip 3 is inserted into the L-shaped groove 8 and abuts against the upper surface of the limiting plate 211.

[0029] Specifically, when the magnetic conductive block 2 and the magnetic strip 3 are installed on the rotor 1, Figure 1-Figure 3 As shown, first align the upper block 23 with the guide groove 41, align the connecting block 22 with the plug-in groove 11, and then push the magnetic block 2 toward the upper end of the rotor 1 until the end of the magnetic block 2 abuts against the bottom inner wall of the plug-in groove 11. At this time, the magnetic block 2 can be installed on the rotor 1 through the bottom block 21 and the upper block 23.

[0030] like Figure 2-Figure 4 As shown, after the magnetic block 2 is installed, align the magnetic strip 3 with the limiting cavity 5, then insert the magnetic strip 3 into the limiting cavity 5 and make the end of the magnetic strip 3 press against the positioning block 6. At this time, the installation between the magnetic block 2, the magnetic strip 3 and the rotor 1 can be completed.

[0031] like Figure 3 , Figure 4 As shown, after the magnetic strip 3 is inserted into the limiting cavity 5, the contact area between the magnetic strip 3 and the magnetic conductive block 2 is increased by the limiting plate 211, and the stability of fixing the magnetic strip 3 on the rotor 1 is further improved.

[0032] 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 magnetic field installation structure, comprising a rotor (1), a plurality of magnetic conductive blocks (2) and magnetic strips (3), characterized in that: The invention also comprises a mounting ring (4) arranged on the outer wall of the rotor (1), the mounting ring (4) being coaxially arranged with the rotor (1), a plurality of guide grooves (41) being provided on the mounting ring (4), a plug-in groove (11) corresponding to the guide grooves (41) being provided on the rotor (1), the plug-in groove (11) being connected to the guide grooves (41); the magnetic conductive block (2) comprising a bottom block (21), a connecting block (22) and an upper block (23), the width of the bottom block (21) and the upper block (23) being greater than the width of the connecting block (22), and the connecting block ( The width of the connecting block (22) is adapted to the width of the plug-in slot (11); an installation state and an active state are formed between the magnetic conductive block (2), the rotor (1) and the magnetic strip (3); in the installation state, the connecting block (22) is inserted into the plug-in slot (11), the upper block (23) passes through the guide slot (41), the upper block (23) and the bottom block (21) are both against the surface of the rotor (1), a limiting cavity (5) is formed between the inner surfaces of the adjacent magnetic conductive blocks (2) and the rotor (1), and the magnetic strip (3) is inserted into the limiting cavity (5) and plugged in.

2. A rotor magnetic field installation structure according to claim 1, characterized in that: The plug-in slot (11) comprises an open area (111) and a strip area (112), wherein the open area (111) and the strip area (112) are distributed from outside to inside, the width of the open area (111) is greater than the width of the strip area (112), and the open area (111) is connected to the guide slot (41).

3. A rotor magnetic field installation structure according to claim 1, characterized in that: The inner surface of the rotor (1) is provided with a positioning block (6). In the installed state, the positioning block (6) is directly opposite to the limiting cavity (5), and the magnetic strip (3) abuts against the positioning block (6).

4. A rotor magnetic field installation structure according to claim 3, characterized in that: A clearance slope (12) is provided at one end of the rotor (1) away from the positioning block (6); the clearance slope (12) is provided on the inner surface of the rotor (1); and the clearance slope (12) is inclined inwardly at one end close to the positioning block (6).

5. The rotor magnetic field installation structure according to claim 1, characterized in that: The lower inner wall of the guide groove (41) is lower than the outer wall of the rotor (1); a transition surface (7) is provided between the lower inner wall of the guide groove (41) and the outer surface of the rotor (1); one end of the transition surface (7) is provided on the outer wall of the rotor (1), and the other end of the transition surface (7) is provided on the lower inner wall of the guide groove (41).

6. A rotor magnetic field installation structure according to claim 1, characterized in that: A limiting plate (211) is arranged on the bottom block (21), the length direction of the limiting plate (211) extending along the length direction of the magnetic conductive block (2), an L-shaped groove (8) is formed between the limiting plate (211) and the bottom block (21), and in the installed state, the magnetic strip (3) is inserted into the L-shaped groove (8) and abuts against the upper surface of the limiting plate (211).

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