Motor rotor magnet embedding device

Abstract

The invention discloses a motor rotor magnet embedding device which comprises a connecting piece and a supporting piece, the supporting piece is welded to the upper end of the connecting piece, a plurality of stacked blocks are arranged at the upper end of the interior of the supporting piece, each magnet is arranged between two stacked blocks through an insertion cavity, and fixing bolts are arranged at the upper ends of the stacked blocks. The fixing bolt penetrates through the stacking block and fixes the stacking block in the supporting piece.

Description

Technical Field

[0001] The present invention relates to the technical field of motor rotors, and particularly to a motor rotor magnet fitting device. Background Art

[0002] In the field of brushless motors, the fixing methods of magnets in the rotor include using glue to bond and fix them into the inserted stack, or using injection molding as a whole. These fixing methods are relatively complex in assembly and high in cost. When using glue to fix, if the magnet is not fixed in the stack, it will cause the motor to vibrate during operation and increase the motor noise.

[0003] Most of the existing magnetic tile clips are made of steel wire, and the spring pressure is concentrated on the wire. There is a large pressure difference between the non-contact part and the contact part of the magnet steel. The magnet is easily damaged after being impacted and vibrated, resulting in a decline or even failure of the motor performance. Summary of the Invention

[0004] To solve the problems existing in the prior art, the present invention provides a motor rotor magnet fitting device.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] The present invention provides a motor rotor magnet fitting device, including a connecting member and a supporting member. The supporting member is welded to the upper end of the connecting member. Several stacking blocks are arranged at the upper end inside the supporting member. Each magnet is arranged between two stacking blocks through a plugging cavity. A fixing bolt is arranged at the upper end of the stacking block. The fixing bolt penetrates through the stacking block and fixes the stacking block inside the supporting member.

[0007] In a further technical solution, the supporting member is composed of a bottom plate, a fixing block, a side plate, a threaded hole and a base. The cross-section of the side plate is circular, the fixing block is arc-shaped. A bottom plate is arranged at the lower end inside the side plate. The magnet is arranged above the bottom plate. A fixing block is arranged at each of the four corners inside the side plate. A threaded hole is arranged in the middle of each fixing block. A base is arranged at the inner end corresponding to each fixing block. The supporting member is fixedly connected to the connecting member through the bottom end of the side plate.

[0008] In a further technical solution, the installation surfaces and the mating surfaces of two adjacent stacking blocks are parallel to each other.

[0009] In a further technical solution, an insertion groove is formed on the installation surface of the stacking block, and an elastic strip is arranged in the insertion groove.

[0010] In a further technical solution, the magnet is a rectangular magnet block.

[0011] In a further technical solution, the thickness of the magnet is 35 millimeters, and six through holes are penetrated through the interior of the magnet.

[0012] The beneficial effects are as follows:

[0013] In the motor rotor magnet fitting device of the present invention, a support member is provided. The support member includes a bottom plate, a fixing block, side plates, threaded holes, and a base. Since a fixing block is provided inside the support member, and both the fixing block and the side plates are arc-shaped, and the stacking block is fixed above the magnet, the magnet can be radially and axially positioned. In addition, the stacking block includes a receiving portion, a left telescopic member, and a right telescopic member, and the left telescopic member and the right telescopic member can elastically expand and contract along the receiving portion, so the installation and fixation are more stable. In addition, fixing bolts are provided, which can play a role in buffering and shock absorption when vibration occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the motor rotor magnet fitting device of the present invention.

[0015] Reference numerals:

[0016] 1, connecting member; 2, support member; 21, bottom plate; 22, fixing block; 23, side plates; 24, threaded holes; 25, base; 3, stacking block; 31, left telescopic member; 32, left groove; 33, receiving portion; 34, internal threaded hole; 35, right groove; 36, right telescopic member; 4, fixing bolt; 41, rotating nut; 42, rigid spring; 43, cushion block; 44, threaded rod; 5, magnet. DETAILED DESCRIPTION OF THE INVENTION

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] Embodiment:

[0019] A motor rotor magnet fitting device, as Figure 1 shown, includes a connecting member and a support member. The support member is welded to the upper end of the connecting member. A plurality of stacking blocks are provided at the upper end inside the support member. Each magnet is arranged between two stacking blocks through a plugging cavity. A fixing bolt is provided at the upper end of the stacking block. The fixing bolt penetrates through the stacking block and fixes the stacking block inside the support member.

[0020] In another embodiment, the support member comprises a bottom plate, a fixing block, side plates, threaded holes and a base. The cross-section of the side plate is circular, and the fixing block is arc-shaped. The bottom plate is arranged at the lower end inside the side plate, and the magnet is arranged above the bottom plate. One fixing block is arranged at each of the four corners inside the side plate. A threaded hole is arranged in the middle of each fixing block, and a base is arranged at the inner end corresponding to each fixing block. The support member is fixedly connected to the connecting member through the bottom end of the side plate.

[0021] In another embodiment, the mounting surfaces and mating surfaces of two adjacent stacked blocks are parallel to each other.

[0022] In another embodiment, the stacked block is provided with an insertion groove on the mounting surface, and an elastic strip is arranged in the insertion groove.

[0023] In another embodiment, the magnet is a rectangular magnet block.

[0024] In another embodiment, the thickness of the magnet is 35 millimeters, and six through holes are arranged through the inside of the magnet.

[0025] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only used to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, including but not limited to the design of a generator for reverse application. These changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A motor rotor magnet embedding device, characterized in that: It includes a connecting member and a supporting member, wherein the supporting member is welded to the upper end of the connecting member, a plurality of stacking blocks are arranged at the inner upper end of the supporting member, each magnet is arranged between two stacking blocks through a plug-in cavity, and a fixing bolt is arranged at the upper end of the stacking block, and the fixing bolt passes through the stacking block and fixes the stacking block inside the supporting member.

2. The motor rotor magnet embedding device according to claim 1, characterized in that: The support member is composed of a bottom plate, a fixed block, a side plate, a threaded hole and a base. The cross-section of the side plate is circular, the fixed block is arc-shaped, the bottom plate is arranged at the lower end of the inner part of the side plate, the magnet is arranged above the bottom plate, a fixed block is arranged at each of the four inner corners of the side plate, a threaded hole is arranged in the middle of the inner part of each of the fixed blocks, and a base is arranged at the inner end of each corresponding to the fixed block, and the support member is fixedly connected to the connecting member through the bottom end of the side plate.

3. The motor rotor magnet embedding device according to claim 1, characterized in that: The mounting surfaces and matching surfaces of two adjacent stacked blocks are parallel to each other.

4. The motor rotor magnet embedding device according to claim 1, characterized in that: The stacking block is provided with an inserting slot on the installation surface, and an elastic strip is arranged in the inserting slot.

5. The motor rotor magnet embedding device according to claim 4, characterized in that: The magnet is a rectangular magnetic block.

6. The motor rotor magnet embedding device according to claim 1, characterized in that: The thickness of the magnet is thirty-five millimeters, and six through holes are arranged inside the magnet.

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