Quick-release end protection cover for permanent magnet synchronous motor

Abstract

The utility model discloses a quick detachable permanent magnet synchronous motor end protective cover relates to permanent magnet synchronous motor technical field, the utility model discloses a permanent magnet synchronous motor, the permanent magnet synchronous motor right side is provided with the protective cover, the permanent magnet synchronous motor right side is connected with the cooling fan, it still includes: buckle assembly, the buckle assembly sets up in the inside of protective cover, and the buckle assembly is used for the protective cover joint fixed. The utility model sets up buckle assembly, specifically is with the protective cover sleeve on the butt joint ring of permanent magnet synchronous motor's end, makes the plug -in block insert into the card slot, then the triangular card block will the protective cover joint fixed, installs fast through the mode of pressing, when needs to dismantle, through the forceful pull -on pull -plate drive protective cover and separate butt joint ring, can fast dismantle, this mode is more convenient for the subsequent permanent magnet synchronous motor maintenance or maintenance, and the form installation of buckle can avoid the situation that the protective cover does not install.

Description

Technical Field

[0001] This utility model belongs to the field of permanent magnet synchronous motor technology, and in particular relates to a quick-release end cover for a permanent magnet synchronous motor. Background Technology

[0002] A permanent magnet synchronous motor (PMSM) is a synchronous motor that uses permanent magnets to create a magnetic field. Its core feature is that the rotor is made of permanent magnet materials, while the stator generates a rotating magnetic field through three-phase alternating current, so that the rotor and stator magnetic fields maintain synchronous speed.

[0003] Traditional permanent magnet synchronous motors typically have a protective cover installed at the end cooling fan to protect the fan and prevent the rotating fan blades from injuring workers. However, the protective cover is usually fitted onto the end of the motor and secured with multiple screws. This method is very inconvenient to install or remove, and the screws are easily lost when removing the protective cover, making it difficult to secure the protective cover effectively afterward. Utility Model Content

[0004] The purpose of this utility model is to provide a quick-release end cover for a permanent magnet synchronous motor. By setting a buckle assembly, it can be quickly installed by pressing. When it needs to be disassembled, the cover can be quickly disassembled by pulling the pull plate to disengage it from the docking ring. This method is more convenient for subsequent inspection or maintenance of the permanent magnet synchronous motor. It solves the problem that the cover is usually fixed with multiple screws, which is very inconvenient to install or disassemble, and the screws are easy to lose when the cover is disassembled.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a quick-release end cover for a permanent magnet synchronous motor, comprising a permanent magnet synchronous motor, a protective cover being disposed on the right side of the permanent magnet synchronous motor, a cooling fan being connected to the right side of the permanent magnet synchronous motor, and further comprising:

[0007] A snap-fit ​​assembly is disposed inside the protective cover and is used to snap and fix the protective cover in place.

[0008] The protective cover has pull plates fixedly connected to both the front and back sides, several heat dissipation vents on the right side of the protective cover, and a docking ring fixedly connected to the right side of the housing of the permanent magnet synchronous motor.

[0009] Furthermore, the right side of the docking ring has several slots, the right side of the docking ring is fixedly connected to several positioning rods, the inner wall of the protective cover is fixedly connected to an inner ring, and the buckle assembly is set on the outer surface of the inner ring;

[0010] The buckle assembly engages with the slot on the docking ring for positioning, and the inner ring is used to position the protective cover during installation.

[0011] Furthermore, the buckle assembly includes several inserts fixedly connected to the inner ring surface. Each insert has a limiting groove inside, and a triangular locking block is slidably connected in the limiting groove on the insert. The side of the triangular locking block away from the protective cover is triangular, and a spring is provided inside the insert.

[0012] The triangular face on the triangular card block is a snap-fit ​​face, the insert block is adapted to the card slot, and the insert block is inserted into the docking ring through the card slot.

[0013] Furthermore, the side of the spring facing the triangular block is fixedly connected to the triangular block, and the side of the spring away from the triangular block is fixedly connected to the inner wall of the insert block. The spring is used to apply elastic force to the triangular block. After the triangular block enters the slot, the inner ring will contact the mating ring.

[0014] Furthermore, the inner ring has several positioning holes, and the positioning rod is inserted into the positioning holes on the inner ring. The positioning rod is used for positioning the protective cover during installation.

[0015] Furthermore, a number of reinforcing strips are fixedly connected to the inner ring of the protective cover. The reinforcing strips are located on the right side of the inner ring. A number of reinforcing strips are fixedly connected to the heat dissipation vents on the inner wall of the protective cover. The reinforcing strips are used to reinforce the protective cover.

[0016] Furthermore, the insertion block is square in shape, the docking ring is located on the outside of the cooling fan, and the docking ring is integrally formed with the housing of the permanent magnet synchronous motor.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model uses a snap-fit ​​assembly. Specifically, the protective cover is placed on the docking ring at the end of the permanent magnet synchronous motor, and the insert block is inserted into the slot. The triangular snap block will then lock the protective cover in place. It can be quickly installed by pressing. When it needs to be disassembled, the protective cover can be quickly removed by pulling the pull plate. This method makes it easier to inspect or maintain the permanent magnet synchronous motor. At the same time, the snap-fit ​​installation can prevent the protective cover from not being able to be installed.

[0019] 2. This utility model provides two reinforcing strips: one reinforcing strip reinforces the outer ring of the protective cover, and the other reinforcing strip reinforces the heat dissipation vents on the protective cover. This makes the protective cover less prone to deformation when subjected to impact or pressure. By ensuring the strength of the protective cover, it is possible to prevent deformation of the protective cover from affecting the use of the cooling fan.

[0020] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the right side structure of the permanent magnet synchronous motor of this utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the protective cover of this utility model;

[0025] Figure 4 This is a front view cross-sectional structural diagram of the protective cover of this utility model;

[0026] Figure 5 This utility model Figure 4 A magnified structural diagram of A in the diagram.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Permanent magnet synchronous motor; 11. Protective cover; 111. Pull plate; 112. Inner ring; 113. Positioning hole; 12. Cooling fan; 13. Docking ring; 131. Slot; 132. Positioning rod; 2. Buckle assembly; 21. Insert block; 22. Triangular buckle block; 23. Spring; 3. Reinforcing strip one; 31. Reinforcing strip two. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0030] Please see Figures 1-5 As shown, this utility model is a quick-release end cover for a permanent magnet synchronous motor, including a permanent magnet synchronous motor 1, a protective cover 11 disposed on the right side of the permanent magnet synchronous motor 1, a cooling fan 12 connected to the right side of the permanent magnet synchronous motor 1, and further including:

[0031] The snap-fit ​​assembly 2 is disposed inside the protective cover 11 and is used to snap and fix the protective cover 11.

[0032] The protective cover 11 has a pull plate 111 fixedly connected to both the front and back sides, and several heat dissipation vents are opened on the right side of the protective cover 11. The housing of the permanent magnet synchronous motor 1 has a docking ring 13 fixedly connected to the right side.

[0033] The right side of the docking ring 13 has several slots 131, and several positioning rods 132 are fixedly connected to the right side of the docking ring 13. The inner ring 112 is fixedly connected to the inner wall of the protective cover 11, and the buckle assembly 2 is set on the outer surface of the inner ring 112. After the protective cover 11 is installed, the positioning rods 132 are inserted into the inner ring 112, which can improve the stability of the protective cover 11 and make the protective cover 11 more stable after installation.

[0034] The buckle assembly 2 is positioned and engaged with the slot 131 on the docking ring 13, and the inner ring 112 is used to position the protective cover 11 during installation.

[0035] The snap-fit ​​assembly 2 includes several insert blocks 21 fixedly connected to the surface of the inner ring 112. The insert blocks 21 have a limiting groove inside, and a triangular locking block 22 is slidably connected in the limiting groove on the insert block 21. The side of the triangular locking block 22 away from the protective cover 11 is triangular, and a spring 23 is provided inside the insert block 21. When the protective cover 11 is put on the docking ring 13 at the end of the permanent magnet synchronous motor 1, the insert blocks 21 are inserted into the locking groove 131, and the triangular locking block 22 will lock and fix the protective cover 11. It can be quickly installed by pressing. When it needs to be disassembled, the protective cover 11 can be quickly disassembled by pulling the pull plate 111 to move the protective cover 11 away from the docking ring 13. This method is more convenient for subsequent inspection or maintenance of the permanent magnet synchronous motor 1. At the same time, the snap-fit ​​installation can avoid the situation where the protective cover 11 cannot be installed.

[0036] Among them, the triangular face on the triangular card block 22 is set as the card contact face, the insert block 21 is adapted to the card slot 131, and the insert block 21 is inserted into the docking ring 13 through the card slot 131.

[0037] The side of spring 23 facing the triangular block 22 is fixedly connected to the triangular block 22, and the side of spring 23 away from the triangular block 22 is fixedly connected to the inner wall of the insert block 21. Spring 23 is used to apply elastic force to the triangular block 22. After the triangular block 22 enters the slot 131, the inner ring 112 will contact the docking ring 13.

[0038] The inner ring 112 has several positioning holes 113 inside. The positioning rod 132 is inserted into the positioning holes 113 on the inner ring 112. The positioning rod 132 is used to position the protective cover 11 during installation.

[0039] Several reinforcing strips 1-3 are fixedly connected to the inner ring of the protective cover 11. The reinforcing strips 1-3 are located on the right side of the inner ring 112. Several reinforcing strips 2-31 are fixedly connected to the heat dissipation vents on the inner wall of the protective cover 11. The reinforcing strips 1-3 and 2-31 are used to reinforce the protective cover 11. The reinforcing strips 1-3 on the protective cover 11 reinforce the outer ring of the protective cover 11, and the reinforcing strips 2-31 reinforce the heat dissipation vents on the protective cover 11. This makes the protective cover 11 less prone to deformation when subjected to impact or pressure. By ensuring the strength of the protective cover 11, it is possible to avoid the deformation of the protective cover 11 affecting the use of the cooling fan 12.

[0040] The insertion block 21 is square in shape, and the docking ring 13 is located on the outside of the cooling fan 12. The docking ring 13 is integrated with the housing of the permanent magnet synchronous motor 1.

[0041] One specific application of this embodiment is:

[0042] When the protective cover 11 needs to be installed, the protective cover 11 is placed on the end of the permanent magnet synchronous motor 1. First, the positioning rod 132 is inserted into the positioning hole 113 on the inner ring 112 to position the protective cover 11. At this time, the insert block 21 will be aligned with the slot 131. By pushing the protective cover 11, the insert block 21 is inserted into the slot 131. At this time, the triangular locking block 22 will be pushed into the insert block 21 and the spring 23 will be squeezed, so that the triangular locking block 22 can smoothly enter the slot 131. When the inner ring 112 contacts the mating ring 13, the triangular locking block 22 will spring back to its original position by the elastic force of the spring 23. The outer slope of 22 will contact the inner wall of the slot 131, thereby snapping and fixing the protective cover 11. The protective cover 11 can be quickly installed by pressing. After the protective cover 11 is installed, the positioning rod 132 is inserted into the inner ring 112, which can improve the stability of the protective cover 11 and make the protective cover 11 more stable after installation. The first reinforcing strip 3 on the protective cover 11 reinforces the outer ring of the protective cover 11, and the second reinforcing strip 31 reinforces the heat dissipation vents on the protective cover 11, so that the protective cover 11 is not easily deformed when it is hit or squeezed, thus not affecting the installation and use of the protective cover 11.

[0043] When it is necessary to disassemble the protective cover 11, the staff pulls the pull plate 111 to disengage the protective cover 11 from the docking ring 13. At this time, the triangular locking block 22 will be pushed into the insert block 21, so that the insert block 21 can be smoothly disengaged from the slot 131, and the protective cover 11 can be quickly disassembled. This method can be used for quick disassembly and is convenient for subsequent inspection or maintenance of the permanent magnet synchronous motor 1.

[0044] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A quick-release end cover for a permanent magnet synchronous motor, comprising a permanent magnet synchronous motor (1), wherein a protective cover (11) is provided on the right side of the permanent magnet synchronous motor (1), and a cooling fan (12) is connected to the right side of the permanent magnet synchronous motor (1), characterized in that, Also includes: The snap-fit ​​assembly (2) is disposed inside the protective cover (11) and is used to snap and fix the protective cover (11); The protective cover (11) has a pull plate (111) fixedly connected to both the front and back sides. The protective cover (11) has several heat dissipation vents on the right side. The permanent magnet synchronous motor (1) has a docking ring (13) fixedly connected to the right side of its outer shell.

2. The end shield of claim 1, wherein, The docking ring (13) has several slots (131) on its right side, and several positioning rods (132) are fixedly connected to the right side of the docking ring (13). The inner ring (112) is fixedly connected to the inner wall of the protective cover (11), and the buckle assembly (2) is set on the outer surface of the inner ring (112). The buckle assembly (2) is positioned and engaged with the slot (131) on the docking ring (13), and the inner ring (112) is used to position the protective cover (11) during installation.

3. The end shield of claim 2, wherein, The buckle assembly (2) includes several inserts (21) fixedly connected to the surface of the inner ring (112). The inserts (21) have a limiting groove inside. A triangular block (22) is slidably connected in the limiting groove on the inserts (21). The side of the triangular block (22) away from the protective cover (11) is triangular. A spring (23) is provided inside the inserts (21). The triangular face on the triangular card block (22) is a card-connecting face, the insert block (21) is adapted to the card slot (131), and the insert block (21) is inserted into the docking ring (13) through the card slot (131).

4. The end shield of claim 3, wherein, The spring (23) is fixedly connected to the triangular block (22) on the side facing the triangular block (22), and the spring (23) is fixedly connected to the inner wall of the insert block (21) on the side away from the triangular block (22). The spring (23) is used to apply elastic force to the triangular block (22). After the triangular block (22) enters the slot (131), the inner ring (112) will contact the docking ring (13).

5. The end shield of claim 4, wherein, The inner ring (112) has several positioning holes (113) inside. The positioning rod (132) is inserted into the positioning holes (113) on the inner ring (112). The positioning rod (132) is used to position the protective cover (11) during installation.

6. The end shield of claim 3, wherein, The inner ring of the protective cover (11) is fixedly connected with several reinforcing strips (3), which are located on the right side of the inner ring (112). Several reinforcing strips (31) are fixedly connected at the heat dissipation vents on the inner wall of the protective cover (11). The reinforcing strips (3) and (31) are used to reinforce the protective cover (11).

7. The end shield of claim 3, wherein, The insert (21) is square, and the docking ring (13) is located on the outside of the cooling fan (12). The docking ring (13) is integrally formed with the housing of the permanent magnet synchronous motor (1).

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