Magnet fixing structure

Abstract

The utility model discloses a magnet fixing structure, which relates to the technical field of motors and comprises a motor shell and a limit ring, mounting clamping grooves are arranged at two ends in the motor shell, mounting clamping blocks are connected in the mounting clamping grooves, the limit ring is arranged in the mounting clamping blocks, and threaded mounting grooves are arranged in the limit ring. A fastening bolt is connected into the threaded mounting groove, a clamping groove is formed in the inner side of the interior of the limiting ring, a clamping block is connected into the clamping groove, and a magnet body is arranged outside the clamping block. According to the magnet fixing structure, the phenomenon that the magnet is prone to falling off after the magnet is pasted into the motor through glue is avoided, meanwhile, the magnet is rapidly limited in the installation process, the structure is simple, the installation precision is high, and the flexibility and motility of the magnet fixing structure in the use process are improved while the convenience of subsequent disassembly and maintenance is improved.

Description

Technical Field

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

[0002] A motor is an electromagnetic device that realizes the conversion or transmission of electric energy according to the law of electromagnetic induction. The magnets on the rotors of existing motors are bonded by anaerobic adhesives. However, after long-term use and when the rotor rotates at high speed, the magnets are easy to fall off, affecting the normal use of the motor. At the same time, a large amount of glue is needed in the production process of the motor, which has a great impact on the human body and the environment. In addition, the bearings of such rotors are prone to electrocorrosion, which affects the service life of the motor. In order to improve the efficiency of the motor, a magnet fixing structure is needed, but the existing magnet fixing structure still has the following shortcomings:

[0003] For example, the utility model with application number 202022023929.X discloses a fixing structure for the iron shell of a motor and a magnet. After adding spiral grooves on the inner wall of the iron shell, more glue can be filled in the grooves, thereby increasing the adhesion between the magnet and the iron shell. This can avoid the risk of the magnet falling off during high-speed operation and braking tests of the motor, thereby improving product quality. However, similar to the comparative documents of the above-mentioned application, when the existing magnet fixing structure is used, since most magnet fixing structures use glue to bond the magnet to the inside of the motor, the magnet is easy to fall off after a long period of use, resulting in reduced practicality of the magnet fixing structure and reduced use efficiency.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a magnet fixing structure is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a magnet fixing structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a magnet fixing structure, including a motor housing and a limiting ring, the motor housing is provided with mounting grooves at both ends, and the mounting grooves are connected with mounting blocks, and the mounting blocks are provided with a limiting ring, and the limiting ring is provided with a threaded mounting groove, and the threaded mounting grooves are connected with fastening bolts, the inner side of the limiting ring is provided with a clamping groove, and the clamping grooves are connected with a clamping block, and the magnet body is provided outside the clamping block.

[0007] Furthermore, the inner dimensions of the mounting slot match the outer dimensions of the mounting block, and the mounting block is slidably connected to the motor housing via the mounting slot.

[0008] Furthermore, the number of the installation blocks is two, and the two installation blocks are symmetrically arranged on both sides of the outside of the limiting ring with respect to the side center axis of the limiting ring.

[0009] Furthermore, the outer dimensions of the limit ring are matched with the inner dimensions of the motor housing, and the limit ring is embeddedly connected to the motor housing.

[0010] Furthermore, the inner dimensions of the threaded mounting groove match the outer dimensions of the fastening bolt, and the fastening bolt is rotatably connected to the limiting ring through the threaded mounting groove.

[0011] Furthermore, the inner dimensions of the clamping groove are matched with the outer dimensions of the clamping block, and the clamping block is embeddedly connected with the limiting ring through the clamping groove.

[0012] Furthermore, the number of the clamping blocks is two, and the two clamping blocks are symmetrically arranged at two ends of the outside of the magnet body with respect to the side center axis of the magnet body.

[0013] Furthermore, the number of the magnet bodies is four, and the four magnet bodies are equidistantly distributed inside the motor housing.

[0014] The utility model provides a magnet fixing structure, which has the following beneficial effects:

[0015] 1. The utility model provides a limit ring, so that when the magnet fixing structure is used, the limit ring can be slidably installed into the two ends of the motor housing by installing the card slot and cooperating with the installation card block, and the fastening bolt is limited inside the limit ring by using the threaded installation groove. The fastening bolt is rotated so that the limit ring is limitedly installed inside the motor housing, thereby facilitating the removal of the limit ring and improving the initiative and convenience in the process of fixing the candidate magnets.

[0016] 2. Through the arrangement of the magnet body, the utility model can ensure that when the magnet fixing structure is in use, the internal dimensions of the clamping groove provided inside the limiting ring match the external dimensions of the clamping blocks provided at both ends of the outside of the magnet body, thereby limiting the magnet body at the middle end of the two limiting rings through the clamping groove and the clamping blocks, avoiding the installation of the magnet by gluing, increasing the convenience of installing the magnet body and facilitating subsequent disassembly and maintenance, thereby improving the overall practicality of the magnet fixing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a three-dimensional unfolded structure of a magnet fixing structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional unfolding structure of the magnet main body of a magnet fixing structure of the utility model;

[0019] Figure 3The utility model is a three-dimensional structural schematic diagram of a magnet fixing structure.

[0020] In the figure: 1. Motor housing; 2. Mounting slot; 3. Mounting block; 4. Limiting ring; 5. Threaded mounting slot; 6. Fastening bolt; 7. Connecting slot; 8. Connecting block; 9. Magnet body. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] like Figures 1 to 3 As shown, a magnet fixing structure includes a motor housing 1 and a limiting ring 4, wherein mounting slots 2 are provided at both ends of the motor housing 1, and mounting blocks 3 are connected to the mounting slots 2, and limiting rings 4 are provided inside the mounting blocks 3, and threaded mounting slots 5 are provided inside the limiting ring 4, and fastening bolts 6 are connected to the threaded mounting slots 5, the inner dimensions of the mounting slots 2 match the outer dimensions of the mounting blocks 3, and the mounting blocks 3 are slidably connected to the motor housing 1 through the mounting slots 2, and the number of mounting blocks 3 is two, and the two mounting blocks 3 are symmetrically arranged on both sides of the outer side of the limiting ring 4 with the side center axis of the limiting ring 4, and the outer dimensions of the limiting ring 4 match the inner dimensions of the motor housing 1. The adapter is used, and the limiting ring 4 is embedded in the motor housing 1. The internal size of the threaded mounting groove 5 matches the external size of the fastening bolt 6, and the fastening bolt 6 is rotatably connected to the limiting ring 4 through the threaded mounting groove 5. The limiting ring 4 is slidably installed into the two ends of the motor housing 1 by means of the installation slot 2 and the installation block 3. At the same time, the internal size of the threaded mounting groove 5 opened in the limiting ring 4 matches the external size of the fastening bolt 6, so that the fastening bolt 6 is limited in the limiting ring 4 through the threaded mounting groove 5. The fastening bolt 6 is rotated so that the limiting ring 4 is limitedly installed in the motor housing 1, thereby facilitating the disassembly of the limiting ring 4 and improving the initiative and convenience in the process of fixing the candidate magnets.

[0023] like Figures 1 to 3As shown, a clamping groove 7 is provided on the inner side of the limiting ring 4, and a clamping block 8 is connected to the inside of the clamping groove 7, and a magnet body 9 is provided on the outside of the clamping block 8, the inner size of the clamping groove 7 is adapted to the outer size of the clamping block 8, and the clamping block 8 is embeddedly connected to the limiting ring 4 through the clamping groove 7, the number of the clamping blocks 8 is provided with two, and the two clamping blocks 8 are symmetrically arranged at the two ends of the outside of the magnet body 9 with the side center axis of the magnet body 9, the number of the magnet body 9 is provided with four, and the four magnet bodies 9 are equidistantly distributed inside the motor housing 1, the inner size of the clamping groove 7 provided inside the limiting ring 4 matches the outer size of the clamping blocks 8 added at the two ends of the outside of the magnet body 9, so that the magnet body 9 is limited to the middle end of the two limiting rings 4 by the clamping groove 7 and the clamping block 8, so as to avoid the installation of the magnet by glue gluing, increase the convenience of installation of the magnet body 9, and facilitate subsequent disassembly and maintenance, thereby increasing the overall practicality of the magnet fixing structure.

[0024] In summary, when the magnet fixing structure is used, first, the internal dimensions of the clamping groove 7 opened inside the limit ring 4 match the external dimensions of the clamping blocks 8 added at the two ends of the outside of the magnet body 9, and the limit ring 4 is slidably installed into the two ends of the motor housing 1 by installing the clamping groove 2 and the clamping block 3. At the same time, the internal dimensions of the threaded installation groove 5 opened inside the limit ring 4 match the external dimensions of the fastening bolt 6, so that the fastening bolt 6 is limited inside the limit ring 4 through the threaded installation groove 5, and the fastening bolt 6 is rotated so that the limit ring 4 is then limitedly installed inside the motor housing 1, so that it is convenient The disassembly of the limiting ring 4 improves the initiative and convenience in the process of fixing the candidate magnets, and the limiting ring 4 is a circular ring that matches the internal size of the motor housing 1, so that the magnets can be quickly installed in a unified manner, avoiding the single installation of a single magnet, saving installation time and reducing the labor intensity of the staff. Then, the magnet body 9 is limited to the middle end of the two limiting rings 4 by using the clamping groove 7 and the clamping block 8, avoiding the installation of the magnet by glue, increasing the convenience of installation of the magnet body 9 and facilitating subsequent disassembly and maintenance, and improving the overall practicality of the magnet fixing structure.

[0025] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A magnet fixing structure, comprising a motor housing (1) and a limiting ring (4), characterized in that: The motor housing (1) has mounting slots (2) at both ends thereof, and the mounting slots (2) are connected to mounting blocks (3), and a limiting ring (4) is arranged inside the mounting blocks (3), and a threaded mounting slot (5) is arranged inside the limiting ring (4), and a fastening bolt (6) is connected inside the threaded mounting slot (5), and a clamping slot (7) is arranged on the inner side of the limiting ring (4), and a clamping block (8) is connected inside the clamping slot (7), and a magnet body (9) is arranged outside the clamping block (8).

2. A magnet fixing structure according to claim 1, characterized in that: The internal dimensions of the installation slot (2) match the external dimensions of the installation block (3), and the installation block (3) is slidably connected to the motor housing (1) via the installation slot (2).

3. A magnet fixing structure according to claim 1, characterized in that: The number of the installation blocks (3) is two, and the two installation blocks (3) are symmetrically arranged on both sides of the outside of the limiting ring (4) with respect to the side center axis of the limiting ring (4).

4. The magnet fixing structure according to claim 1, characterized in that: The outer dimensions of the limiting ring (4) are matched to the inner dimensions of the motor housing (1), and the limiting ring (4) and the motor housing (1) are embeddedly connected.

5. The magnet fixing structure according to claim 1, characterized in that: The inner dimensions of the threaded mounting groove (5) match the outer dimensions of the fastening bolt (6), and the fastening bolt (6) is rotatably connected to the limiting ring (4) via the threaded mounting groove (5).

6. The magnet fixing structure according to claim 1, characterized in that: The internal dimensions of the clamping groove (7) are matched to the external dimensions of the clamping block (8), and the clamping block (8) is embeddedly connected to the limiting ring (4) via the clamping groove (7).

7. The magnet fixing structure according to claim 1, characterized in that: The number of the clamping blocks (8) is two, and the two clamping blocks (8) are symmetrically arranged at two ends of the outside of the magnet body (9) with respect to the side center axis of the magnet body (9).

8. The magnet fixing structure according to claim 1, characterized in that: The number of the magnet bodies (9) is four, and the four magnet bodies (9) are equidistantly distributed inside the motor housing (1).

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