Outer rotor permanent magnet motor
By designing protective devices and connection devices on the outer rotor permanent magnet motor, the problem of easy damage to the rotary shaft base during transportation and handling is solved, and the safe transportation and convenient maintenance of the equipment are achieved.
Patent Information
- Application Number
- CN202323569444.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2033-12-27
AI Technical Summary
During transportation and handling, the outer rotor permanent magnet motor is prone to collision of the shaft and the problem of damage.
A protective device is designed, including a protective cover, annular groove, annular plate, a rectangular block, a round rod, a fixing rod and a spring. Through the sliding and fixed connection of these components, the protective cover is ensured to be on the surface of the rotating shaft base to avoid collisions. ; At the same time, through the connecting device, including rectangular strips, L-shaped plates, limiting rods and springs, a stable connection between the connecting cover and the outer rotor case is achieved.
It effectively avoids collision and damage of the rotating shaft base during transportation and handling, ensures the safety of the permanent magnet motor, and is easy to repair.
Smart Images
Figure CN222263349U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of permanent magnet motors, in particular to an outer rotor permanent magnet motor. Background Art
[0002] An outer rotor permanent magnet motor is a type of motor. An outer rotor permanent magnet motor is generally composed of a stator, an outer rotor casing and permanent magnets. When using a permanent magnet motor, permanent magnets are set on the inner wall of the outer rotor casing, and the stator is composed of coils. When current passes through the stator coil, it will generate a magnetic field. This magnetic field will interact with the permanent magnets on the rotor, thereby generating torque and causing the rotor to start rotating.
[0003] The inventors have found in their daily work that the outer rotor permanent magnet motor still has at least the following problems: when using the permanent magnet motor, the outer rotor permanent magnet motor is prone to collision with the shaft base during transportation and handling, which may damage the shaft base, which may damage the permanent magnet motor. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes an outer rotor permanent magnet motor.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an outer rotor permanent magnet motor, a stator is arranged inside the outer rotor housing, a rotating shaft base is arranged at one end of the stator, a permanent magnet is arranged inside the outer rotor housing, a connecting cover is arranged on the top of the outer rotor housing, a protective device is arranged on the surface of the connecting cover, a connecting device is arranged on the side of the connecting cover, the protective device includes a protective cover, a ring groove is opened on the surface of the connecting cover, a circular ring plate is slidably connected to the inner wall of the ring groove, the top of the circular ring plate and the bottom of the protective cover are fixedly connected, and the protective cover is sleeved on the surface of the rotating shaft base.
[0006] The effect achieved by the above components is: when using the protective device, slide the annular plate into the inside of the annular groove, and then cover the surface of the shaft base. In this way, when transporting and carrying the permanent magnet motor, it is avoided to hit the shaft base, thereby avoiding damage to the permanent magnet motor.
[0007] Preferably, a rectangular block is fixedly connected to the bottom of the annular groove, a rectangular groove is opened on the surface of the circular ring plate, and the inner wall of the rectangular groove is slidably connected to the rectangular block.
[0008] The effect achieved by the above components is: the rectangular block is slid into the inside of the rectangular groove, thereby effectively preventing the circular ring plate from rotating inside the ring groove.
[0009] Preferably, a round rod is rotatably inserted into the surface of the rectangular block, and a connecting plate is fixedly connected to the top of the round rod.
[0010] The effect achieved by the above components is: after the rectangular block is inserted into the rectangular groove, the round rod is manually rotated so that the round rod rotates to the surface of the circular ring plate, thereby well restricting the circular ring plate inside the ring groove.
[0011] Preferably, a fixing rod is inserted and slidably penetrated through the surface of the connecting plate, a circular hole is opened on the surface of the annular plate, and the inner wall of the circular hole is slidably connected to the fixing rod.
[0012] The effect achieved by the above components is: the fixing rod is inserted into the inside of the round hole, thereby fixing the round rod on the surface of the rectangular block.
[0013] Preferably, a first spring is sleeved on the surface of the fixing rod, one end of the first spring is fixedly connected to the top of the fixing rod, and one end of the first spring away from the top of the fixing rod is fixedly connected to the surface of the connecting plate.
[0014] The effect achieved by the above components is: the fixing rod is pulled by the first spring, thereby limiting the fixing rod inside the circular hole.
[0015] Preferably, the connecting device comprises a rectangular bar, the bottom of the connecting cover is fixedly connected to the rectangular bar, the top of the outer rotor housing is provided with a connecting groove, and the inner wall of the connecting groove is slidably connected to the rectangular bar.
[0016] The effect achieved by the above components is that when the connecting device is used, the rectangular bar is directly slid into the inside of the connecting groove, thereby well connecting the connecting cover and the outer rotor housing together.
[0017] Preferably, an L-shaped plate is fixedly connected to the side of the connecting cover, a groove is provided on the surface of the L-shaped plate, a limit rod is slidably inserted through the bottom of the groove, a small hole is provided on the side of the outer rotor housing, and the inner wall of the small hole is slidably connected to the limit rod.
[0018] The effect achieved by the above components is that after the rectangular strip is slid into the interior of the connecting groove, the limiting rod is then slid into the interior of the small hole, so that the connecting cover can be well fixed on the top of the outer rotor housing.
[0019] Preferably, a second spring is sleeved on the surface of the limiting rod, one end of the second spring is fixedly connected to the top of the limiting rod, and one end of the second spring away from the top of the limiting rod is fixedly connected to the bottom of the groove.
[0020] The effect achieved by the above components is: the limiting rod is pulled by the second spring, thereby limiting the limiting rod inside the small hole.
[0021] In the utility model, a protective device is provided. When the protective device is used, the annular plate is slid into the inside of the annular groove, and then the protective cover is covered on the surface of the rotating shaft base. In this way, when the permanent magnet motor is transported and carried, it is avoided to hit the rotating shaft base, thereby avoiding damage to the permanent magnet motor. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 A three-dimensional structural schematic diagram of an outer rotor permanent magnet motor is proposed for the utility model;
[0023] Figure 2 A schematic diagram of the three-dimensional structure of a novel rectangular block proposed for the utility model;
[0024] Figure 3 A three-dimensional structural schematic diagram of a novel L-shaped plate proposed for the utility model;
[0025] Figure 4 The utility model provides a schematic diagram of a three-dimensional structure of a novel connecting groove.
[0026] Legend: 1. Outer rotor housing; 2. Stator; 3. Permanent magnet; 4. Shaft base; 5. Connecting cover; 6. Protective device; 601. Ring groove; 602. Circular ring plate; 603. Protective cover; 604. Rectangular groove; 605. Rectangular block; 606. Round rod; 607. Connecting plate; 608. Fixing rod; 609. First spring; 610. Round hole; 7. Connecting device; 701. Rectangular bar; 702. L-shaped plate; 703. Groove; 704. Limiting rod; 705. Second spring; 706. Connecting groove; 707. Small hole. DETAILED DESCRIPTION
[0027] Embodiment 1, as Figure 1-4 As shown, an outer rotor permanent magnet motor is provided, wherein a stator 2 is provided inside an outer rotor casing 1, a shaft base 4 is provided at one end of the stator 2, a permanent magnet 3 is provided inside the outer rotor casing 1, a connecting cover 5 is provided on the top of the outer rotor casing 1, a protective device 6 is provided on the surface of the connecting cover 5, and a connecting device 7 is provided on the side of the connecting cover 5. When the permanent magnet motor is used, the permanent magnet 3 is provided on the inner wall of the outer rotor casing 1, and the stator 2 is composed of a coil. When current passes through the coil of the stator 2, it will generate a magnetic field, and this magnetic field will interact with the permanent magnet 3 on the outer rotor casing 1, thereby generating a torque, so that the outer rotor casing 1 starts to rotate.
[0028] Reference Figure 2, the protective device 6 includes a protective cover 603, a ring groove 601 is provided on the surface of the connecting cover 5, and a circular ring plate 602 is slidably connected to the inner wall of the ring groove 601, and the top of the circular ring plate 602 is fixedly connected to the bottom of the protective cover 603, and the protective cover 603 is sleeved on the surface of the rotating shaft base 4. When the protective device 6 is used, the circular ring plate 602 is slid into the inside of the ring groove 601, and then the protective cover 603 is covered on the surface of the rotating shaft base 4. In this way, when the permanent magnet motor is transported and carried, it is avoided to bump into the rotating shaft base 4, thereby avoiding damage to the permanent magnet motor. A rectangular block 605 is fixedly connected to the bottom of the ring groove 601, and a rectangular groove 604 is provided on the surface of the circular ring plate 602. The inner wall of the rectangular groove 604 is slidably connected to the rectangular block 605, and the rectangular block 605 is slid into the inside of the rectangular groove 604, thereby well preventing the circular ring plate 602 from rotating inside the ring groove 601. A round rod 606 is inserted into the surface of the rectangular block 605 for rotation, and the top of the round rod 606 The part is fixedly connected with a connecting plate 607. After the rectangular block 605 is inserted into the rectangular groove 604, the round rod 606 is manually rotated so that the round rod 606 is rotated to the surface of the circular ring plate 602, so that the circular ring plate 602 is well restricted inside the annular groove 601. A fixing rod 608 is inserted and slidably penetrated through the surface of the connecting plate 607. A circular hole 610 is opened on the surface of the circular ring plate 602. The inner wall of the circular hole 610 is slidably connected with the fixing rod 608. The fixing rod 608 is inserted into the inside of the circular hole 610, so that the round rod 606 is fixed to the surface of the rectangular block 605. A first spring 609 is sleeved on the surface of the fixing rod 608. One end of the first spring 609 is fixedly connected to the top of the fixing rod 608. One end of the first spring 609 away from the top of the fixing rod 608 is fixedly connected to the surface of the connecting plate 607. The fixing rod 608 is pulled by the first spring 609, so that the fixing rod 608 is restricted inside the circular hole 610.
[0029] Reference Figure 3 and Figure 4The connecting device 7 includes a rectangular bar 701, the bottom of the connecting cover 5 is fixedly connected to the rectangular bar 701, the top of the outer rotor housing 1 is provided with a connecting groove 706, the inner wall of the connecting groove 706 is slidably connected to the rectangular bar 701, when the connecting device 7 is used, the rectangular bar 701 is directly slid into the inside of the connecting groove 706, and then the connecting cover 5 and the outer rotor housing 1 are well connected together, the side of the connecting cover 5 is fixedly connected with an L-shaped plate 702, the surface of the L-shaped plate 702 is provided with a groove 703, the bottom of the groove 703 is slidably penetrated and inserted with a limit rod 704, and the side of the outer rotor housing 1 is provided with a small hole 707, The inner wall of the small hole 707 is slidably connected to the limiting rod 704. After the rectangular bar 701 is slid into the inside of the connecting groove 706, the limiting rod 704 is slid into the inside of the small hole 707, so that the connecting cover 5 can be well fixed on the top of the outer rotor housing 1. The surface of the limiting rod 704 is sleeved with a second spring 705, one end of the second spring 705 is fixedly connected to the top of the limiting rod 704, and one end of the second spring 705 away from the top of the limiting rod 704 is fixedly connected to the bottom of the groove 703. The limiting rod 704 is pulled by the second spring 705, and then the limiting rod 704 is restricted inside the small hole 707.
[0030] Working principle: when using a permanent magnet motor, a permanent magnet 3 is arranged on the inner wall of the outer rotor housing 1, and the stator 2 is composed of a coil. When current passes through the stator 2 coil, it will generate a magnetic field. This magnetic field will interact with the permanent magnet 3 on the outer rotor housing 1, thereby generating a torque, causing the outer rotor housing 1 to start rotating. When using the protective device 6, slide the circular ring plate 602 into the inside of the ring groove 601, and then slide the rectangular block 605 into the inside of the rectangular groove 604. After the rectangular block 605 is inserted into the inside of the rectangular groove 604, manually rotate the round rod 606 so that the round rod 606 rotates to the surface of the circular ring plate 602, thereby well restricting the circular ring plate 602 to the inside of the ring groove 601. , the fixing rod 608 is pulled by the first spring 609, so that the fixing rod 608 is restricted inside the circular hole 610, and the protective cover 603 is covered on the surface of the shaft base 4, so that when the permanent magnet motor is transported and carried, it is avoided to hit the shaft base 4, thereby avoiding damage to the permanent magnet motor. When using the connecting device 7, the rectangular bar 701 is directly slid into the inside of the connecting groove 706, and the limiting rod 704 is pulled by the second spring 705, so that the limiting rod 704 is restricted inside the small hole 707, thereby well connecting the connecting cover 5 and the outer rotor housing 1 together, and the reverse operation can separate the connecting cover 5 and the outer rotor housing 1, thereby facilitating the maintenance of the internal structure of the outer rotor housing 1.
Claims
1. An outer rotor permanent magnet motor, comprising an outer rotor housing (1), characterized in that: A stator (2) is arranged inside the outer rotor housing (1), a shaft base (4) is arranged at one end of the stator (2), a permanent magnet (3) is arranged inside the outer rotor housing (1), a connection cover (5) is arranged at the top of the outer rotor housing (1), a protective device (6) is arranged on the surface of the connection cover (5), a connection device (7) is arranged on the side of the connection cover (5), the protective device (6) comprises a protective cover (603), a ring groove (601) is provided on the surface of the connection cover (5), a circular ring plate (602) is slidably connected to the inner wall of the circular ring plate (601), the top of the circular ring plate (602) and the bottom of the protective cover (603) are fixedly connected, and the protective cover (603) is sleeved on the surface of the shaft base (4).
2. The outer rotor permanent magnet motor according to claim 1, characterized in that: A rectangular block (605) is fixedly connected to the bottom of the annular groove (601), a rectangular groove (604) is opened on the surface of the circular ring plate (602), and the inner wall of the rectangular groove (604) is slidably connected to the rectangular block (605).
3. The outer rotor permanent magnet motor according to claim 2, characterized in that: A round rod (606) is rotatably inserted into the surface of the rectangular block (605), and a connecting plate (607) is fixedly connected to the top of the round rod (606).
4. The outer rotor permanent magnet motor according to claim 3, characterized in that: A fixing rod (608) is inserted and slidably penetrated through the surface of the connecting plate (607), and a circular hole (610) is opened on the surface of the annular plate (602). The inner wall of the circular hole (610) is slidably connected to the fixing rod (608).
5. The outer rotor permanent magnet motor according to claim 4, characterized in that: A first spring (609) is sleeved on the surface of the fixing rod (608), one end of the first spring (609) is fixedly connected to the top of the fixing rod (608), and one end of the first spring (609) away from the top of the fixing rod (608) is fixedly connected to the surface of the connecting plate (607).
6. The outer rotor permanent magnet motor according to claim 1, characterized in that: The connecting device (7) comprises a rectangular bar (701), the bottom of the connecting cover (5) is fixedly connected to the rectangular bar (701), the top of the outer rotor housing (1) is provided with a connecting groove (706), and the inner wall of the connecting groove (706) is slidably connected to the rectangular bar (701).
7. The outer rotor permanent magnet motor according to claim 1, characterized in that: An L-shaped plate (702) is fixedly connected to the side of the connection cover (5), a groove (703) is provided on the surface of the L-shaped plate (702), a limit rod (704) is slidably inserted through the bottom of the groove (703), and a small hole (707) is provided on the side of the outer rotor housing (1), and the inner wall of the small hole (707) is slidably connected to the limit rod (704).
8. The outer rotor permanent magnet motor according to claim 7, characterized in that: A second spring (705) is sleeved on the surface of the limiting rod (704), one end of the second spring (705) is fixedly connected to the top of the limiting rod (704), and one end of the second spring (705) away from the top of the limiting rod (704) is fixedly connected to the bottom of the groove (703).