Hall mounting structure of a high-speed motor

Abstract

The present invention discloses a Hall installation structure for a high-speed motor, which includes a motor stator and Hall elements. The motor stator includes a plurality of stator assembly monomers that are snap-connected together. The stator assembly monomer includes a first stator split body and a second stator split body. A first installation groove is provided in the tooth portion of the first stator split body, and a second installation groove is provided in the tooth portion of the second stator split body and near the first installation groove. A first insulating skeleton and a second insulating skeleton are respectively provided on one side of the first stator split body and the second stator split body. A first groove and a second groove are respectively provided on the sides of the first insulating skeleton and the second insulating skeleton that are close to each other. The Hall element is installed in the first groove and the second groove. The outer wall of the first groove is arranged in the first installation groove, and the outer wall of the second groove is arranged in the second installation groove. In the present invention, special cutting treatment is performed on the stator tooth portion, which facilitates the installation of the Hall, increases the positioning accuracy, makes the Hall closer to the position of the magnetic steel, and enhances the ability of the magnetic ring induction.

Description

Technical Field

[0001] The present invention relates to the technical field of high-speed motors, and particularly to a Hall mounting structure for a high-speed motor. Background Art

[0002] Due to the compact structure of high-speed motors, in order to obtain as small a moment of inertia as possible and reduce costs, the Hall induction magnetic ring is often omitted, and a magnet that directly outputs torque by Hall induction is used. However, when the Hall is in the motor slot, the induction ability will be weakened, and sometimes the position of the magnet cannot be sensed, resulting in motor startup failure or performance degradation. Summary of the Invention

[0003] The object of the present invention is to provide a Hall mounting structure for a high-speed motor, which solves the problems that the Hall has weak induction ability when it is in the motor slot, and sometimes the position of the magnet cannot be sensed, resulting in motor startup failure or performance degradation.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A Hall mounting structure for a high-speed motor of the present invention includes a motor stator and Hall elements. The motor stator includes a plurality of stator assembly monomers that are snap-connected together. The stator assembly monomer includes a first stator split body and a second stator split body. A first mounting groove is provided in the tooth portion of the first stator split body, and a second mounting groove is provided in the tooth portion of the second stator split body and near the first mounting groove. A first insulating skeleton and a second insulating skeleton are respectively provided on one side of the first stator split body and the second stator split body. A first groove and a second groove are respectively provided on the sides of the first insulating skeleton and the second insulating skeleton that are close to each other. The Hall element is installed in the first groove and the second groove. The outer wall of the first groove is arranged in the first mounting groove, and the outer wall of the second groove is arranged in the second mounting groove.

[0006] Further, the number of the stator assembly monomers is set to three, and the three stator assembly monomers are snap-connected to form a circular structure.

[0007] Further, the number of the Hall elements is set to three, and the angle between two adjacent Hall elements is 120°.

[0008] Further, a first clamping block and a first clamping groove are respectively provided on both sides of the first stator split body, and a second clamping block and a second clamping groove are respectively provided on both sides of the second stator split body. The first clamping block and the second clamping groove are matched, and the first clamping groove and the second clamping block on another adjacent second stator split body are matched.

[0009] Further, a third insulating skeleton and a fourth insulating skeleton are respectively arranged on the other sides of the first stator split body and the second stator split body. The third insulating skeleton matches the first insulating skeleton, and the fourth insulating skeleton matches the second insulating skeleton.

[0010] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0011] A Hall installation structure of a high-speed motor according to the present invention includes a motor stator and a Hall element. The motor stator includes a plurality of stator assembly monomers clamped together. The stator assembly monomer includes a first stator split body and a second stator split body. A first installation groove is provided in the tooth part of the first stator split body, and a second installation groove is provided in the tooth part of the second stator split body and near the first installation groove. A first insulating skeleton and a second insulating skeleton are respectively arranged on one sides of the first stator split body and the second stator split body. A first groove and a second groove are respectively arranged on the sides of the first insulating skeleton and the second insulating skeleton close to each other. The Hall element is installed in the first groove and the second groove. The outer wall of the first groove is arranged in the first installation groove, and the outer wall of the second groove is arranged in the second installation groove. In the present invention, special cutting treatment is performed on the stator tooth part to make room for the installation of the Hall, which is convenient for the installation of the Hall, increases the positioning accuracy, enables the Hall to be closer to the position of the magnetic steel, enhances the magnetic ring induction ability, and improves the Hall induction ability. The present invention reduces the Hall magnetic ring structure, reduces the moment of inertia, reduces the cost, improves the Hall induction ability and reliability, improves the performance of the motor, and ensures the smooth start of the motor. Description of the Drawings

[0012] The following further describes the present invention with reference to the drawings.

[0013] Figure 1 It is a schematic structural diagram of the stator assembly monomer of the present invention;

[0014] Figure 2 It is an exploded view of the stator assembly monomer of the present invention;

[0015] Figure 3 It is a schematic structural diagram of the first stator split body of the present invention;

[0016] Figure 4 It is a schematic structural diagram of the second stator split body of the present invention;

[0017] Figure 5 It is a schematic structural diagram of the first insulating skeleton of the present invention;

[0018] Figure 6 It is a schematic structural diagram of the second insulating skeleton of the present invention;

[0019] Description of the reference numerals: 1. First stator split body; 2. Second stator split body; 3. First insulating skeleton; 4. Second insulating skeleton; 5. Hall element; 101. First mounting groove; 102. First clamping block; 103. First clamping groove; 201. Second mounting groove; 202. Second clamping block; 203. Second clamping groove; 301. First groove; 401. Second groove. Detailed implementation manners

[0020] As Figure 1-6 shown, a Hall mounting structure of a high-speed motor includes a motor stator and a Hall element 5. The motor stator includes a plurality of stator assembly monomers clamped together. The stator assembly monomer includes a first stator split body 1 and a second stator split body 2. A first mounting groove 101 is formed in the tooth part of the first stator split body 1, and a second mounting groove 201 is formed in the tooth part of the second stator split body 2 and close to the first mounting groove 101. A first insulating skeleton 3 and a second insulating skeleton 4 are respectively arranged on one side of the first stator split body 1 and the second stator split body 2. A first groove 301 and a second groove 401 are respectively arranged on the sides of the first insulating skeleton 3 and the second insulating skeleton 4 close to each other. The Hall element 5 is installed in the first groove 301 and the second groove 401. The outer wall of the first groove 301 is arranged in the first mounting groove 101, and the outer wall of the second groove 401 is arranged in the second mounting groove 201. In the present invention, special cutting treatment is performed on the stator tooth part to make room for the installation of the Hall, which is convenient for the installation of the Hall, increases the positioning accuracy, enables the Hall to be closer to the position of the magnetic steel, enhances the magnetic ring induction ability, and improves the Hall induction ability. The present invention reduces the Hall magnetic ring structure, reduces the moment of inertia, reduces the cost, improves the Hall induction ability and reliability, improves the performance of the motor, and ensures the smooth start of the motor.

[0021] Specifically, the number of the stator assembly monomers is set to three, and the three stator assembly monomers are clamped to form a circular structure.

[0022] The number of the Hall elements 5 is set to three, and the interval between two adjacent Hall elements 5 is 120°.

[0023] A first clamping block 102 and a first clamping groove 103 are respectively arranged on both sides of the first stator split body 1, and a second clamping block 202 and a second clamping groove 203 are respectively arranged on both sides of the second stator split body 2. The first clamping block 102 and the second clamping groove 203 are matched, and the first clamping groove 103 and the second clamping block 202 on another adjacent second stator split body 2 are matched.

[0024] On the other sides of the first stator segment 1 and the second stator segment 2, a third insulating skeleton and a fourth insulating skeleton are respectively arranged. The third insulating skeleton matches the first insulating skeleton 3, and the fourth insulating skeleton matches the second insulating skeleton 4. The third insulating skeleton and the first insulating skeleton 3 are connected by snap fit and wrap around the outside of the first stator segment 1. The fourth insulating skeleton and the second insulating skeleton 4 are connected by snap fit and wrap around the outside of the second stator segment 2. Specifically, the third insulating skeleton and the fourth insulating skeleton are similar in structure to the first insulating skeleton 3 and the second insulating skeleton 4, and no grooves for installing Hall elements are provided on the third insulating skeleton and the fourth insulating skeleton. The insulating skeletons are connected by snap fit, which is simple in processing and manufacturing and convenient for installation.

[0025] The present invention has three processing methods:

[0026] Method 1: The insulating skeleton is injection molded separately, inserted into the stator slot, and the groove positions are designed on the insulating skeleton to place the Hall element.

[0027] Method 2: The insulating skeleton and the stator are injection molded together, and the groove positions are designed on the insulating skeleton to place the Hall element.

[0028] Method 3: The insulating skeleton, the stator, and the Hall element are injection molded together.

[0029] The embodiments described above are only descriptions of the preferred modes of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A Hall mounting structure for a high-speed motor, characterized in that: It includes a motor stator and Hall elements. The motor stator includes a plurality of stator assembly monomers that are snap-connected together. Each stator assembly monomer includes a first stator split body and a second stator split body. A first installation groove is provided in the tooth part of the first stator split body, and a second installation groove is provided in the tooth part of the second stator split body and near the first installation groove. A first insulating skeleton and a second insulating skeleton are respectively arranged on one side of the first stator split body and the second stator split body. A first groove and a second groove are respectively arranged on the sides of the first insulating skeleton and the second insulating skeleton that are close to each other. The Hall elements are installed in the first groove and the second groove. The outer wall of the first groove is arranged in the first installation groove, and the outer wall of the second groove is arranged in the second installation groove.

2. The Hall mounting structure of the high-speed motor according to claim 1, characterized in that: The number of the stator assembly monomers is set to three, and the three stator assembly monomers are snap-connected to form a circular structure.

3. The Hall mounting structure of the high-speed motor according to claim 2, characterized in that: The number of the Hall elements is set to three, and the angle between two adjacent Hall elements is 120°.

4. The Hall mounting structure of the high-speed motor according to claim 1, wherein: A first clamping block and a first clamping groove are respectively arranged on both sides of the first stator split body, and a second clamping block and a second clamping groove are respectively arranged on both sides of the second stator split body. The first clamping block is matched with the second clamping groove, and the first clamping groove is matched with the second clamping block on another adjacent second stator split body.

5. The Hall mounting structure of the high-speed motor according to claim 1, wherein: A third insulating skeleton and a fourth insulating skeleton are respectively arranged on the other side of the first stator split body and the second stator split body. The third insulating skeleton is matched with the first insulating skeleton, and the fourth insulating skeleton is matched with the second insulating skeleton.

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