Spliced stator core

Abstract

The utility model relates to the technical field of stator iron cores, and discloses a spliced stator iron core, which comprises a plurality of iron core blocks, a stator outer frame and a plurality of insertion rods, T-shaped grooves are formed in the middle parts of the edges of the outer walls of the iron core blocks, a plurality of T-shaped blocks are fixedly connected to the inner wall of the stator outer frame, and the insertion rods are inserted into the T-shaped grooves. Second connecting holes are formed in the middles of the sides, close to the center of the stator outer frame, of the T-shaped blocks, first connecting holes are formed in the middles of the sides, close to the center of the stator outer frame, of the iron core blocks, and connecting pieces are tightly attached to the middles of the outer walls of the front ends of the iron core blocks. According to the utility model, the cooperation of the T-shaped groove and the T-shaped block and the design of the insertion rod and the connecting piece are adopted, so that the rapid installation and fixation of the iron core block are realized, the maintenance process is simplified, the cost is reduced, and through the connection of the insertion rod of the first connecting hole and the second connecting hole and the multiple fixation of the connecting piece and the fixing nut, the reliability is improved. And the rigidity and the stability of the whole structure are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stator core, especially relates to a spliced stator core. BACKGROUND

[0002] The stator is the stationary part of the motor. The stator is composed of a stator core, a stator winding and a machine base. The stator core is an important part of the magnetic circuit of the motor. Together with the rotor core and the air gap between the stator and the rotor, it forms a complete magnetic circuit of the motor. In an asynchronous motor, the magnetic flux in the stator core is alternating, thus causing core loss.

[0003] The existing motor stator usually adopts an integrated stamping structure. This structure has certain limitations in the winding process, making the winding work complex and time-consuming. The staff needs to invest more energy and time in this step, thus reducing the production efficiency of the motor. In addition, if a part of the integral stator core is damaged, the entire core usually needs to be replaced, which not only increases the maintenance cost but also makes the maintenance work more complicated and difficult.

[0004] Therefore, the skilled person in the art provides a spliced stator core to solve the problems raised in the background. SUMMARY

[0005] The utility model discloses a spliced stator core to solve the shortcomings in the prior art. The T-shaped slot and T-shaped block are matched, and the plug rod and the connecting piece are designed to realize the quick installation and fixation of the core block, simplify the maintenance process and reduce the cost. The plug rod is connected through the first connecting hole and the second connecting hole, and the connecting piece and the fixing nut are fixed multiple times to enhance the rigidity and stability of the overall structure. In addition, the individual replaceability of the core block not only facilitates maintenance but also greatly improves the adaptability of the stator core to different motor manufacturing requirements and increases the production flexibility.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A spliced stator core includes a plurality of core blocks, a stator outer frame and a plurality of plug rods. A T-shaped slot is formed in the middle of the outer wall edge of each core block. A plurality of T-shaped blocks are fixedly connected to the inner wall of the stator outer frame. A second connecting hole is formed in the middle of one side of the T-shaped block near the center of the stator outer frame. A first connecting hole is formed in the middle of one side of the core block near the center of the stator outer frame. A connecting piece is tightly attached to the middle of the outer wall of the front end of each core block. The outer wall of the front end of each plug rod is tightly attached to the inner wall of the connecting piece. Two fixing nuts are arranged on the outer wall of the front end of the connecting piece.

[0008] Through the technical scheme, the installation and fixation of the iron core block become more simple and fast through the cooperation of the T-shaped groove and the T-shaped block and the use of the inserting rod and the connecting piece, the iron core block can be replaced alone, the maintenance cost and difficulty are reduced, the inserting rod is connected with the iron core block and the stator outer frame through the first connecting hole and the second connecting hole, and is fixed through the connecting piece and the fixing nut, and the multiple fixation mode improves the rigidity and stability of the entire stator core.

[0009] Further, a plurality of air holes are formed at the edges of the outer wall of the iron core block, and the air holes are located on both sides of the T-shaped groove.

[0010] Through the technical scheme, the air holes help heat dissipation, reduce the temperature rise of the iron core during the operation of the motor, and thus improve the efficiency and service life of the motor.

[0011] Further, a wire embedding groove is formed at the middle of each side of the outer wall of the iron core block.

[0012] Through the technical scheme, the wire embedding groove provides a fixed position for the winding, facilitates the winding operation, and also ensures the neatness and stability of the winding.

[0013] Further, an installation block is fixedly connected to the middle of each side of the outer wall of the stator outer frame, and an installation hole is formed in the middle of the installation block.

[0014] Through the technical scheme, the installation block and the installation hole make the entire stator core can be conveniently installed on the motor shell or other structures, improving the installation efficiency.

[0015] Further, the outer wall of the T-shaped block is tightly fitted with the inner wall of the T-shaped groove.

[0016] Through the technical scheme, the iron core block can be quickly positioned to the appropriate position on the stator outer frame through this design, facilitating installation.

[0017] Further, the outer wall of the rear end of the inserting rod is slidably fitted with the inner wall of the first connecting hole and the second connecting hole, respectively.

[0018] Through the technical scheme, through this design, when the iron core block needs to be replaced or maintained, the slidably fitted inserting rod can be easily taken out, reducing the disassembly difficulty and time.

[0019] Further, a threaded trace is formed on the outer wall of the front end of the inserting rod, and the outer wall of the threaded trace is threadedly connected with the inner wall of the fixing nut.

[0020] Through the technical scheme, the connecting piece and the fixing nut are fixed, further improving the rigidity and stability of the entire stator core.

[0021] The utility model has the following beneficial effects:

[0022] 1, the utility model discloses a kind of spliced stator core, by the cooperation of T slot and T block, and the use of plug rod and connecting piece, the installation and fixation of iron core block become more simple and fast, this design allows iron core block to be replaced alone, reduce maintenance cost and difficulty, plug rod is connected with iron core block and stator outer frame by first connecting hole and second connecting hole, then fixed by connecting piece and fixing nut, such multiple fixed mode improves the rigidity and stability of entire stator core, and because iron core block can be replaced alone, this design makes that stator core can adapt to different power and size motor manufacturing demand, improve the flexibility of production. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 for the shaft plot of the spliced stator core of the utility model is presented;

[0024] Figure 2 for the front view of the spliced stator core of the utility model is presented;

[0025] Figure 3 for the partial structure shaft plot of the spliced stator core of the utility model is presented;

[0026] Figure 4 for the partial structure shaft plot of the spliced stator core of the utility model is presented;

[0027] Figure 5 for the partial structure explosion drawing of the spliced stator core of the utility model is presented.

[0028] Legend:

[0029] 1, iron core block;101, air hole;102, embedded wire slot;103, T slot;104, first connecting hole;2, stator outer frame;201, mounting block;202, mounting hole;203, T block;204, second connecting hole;3, plug rod;301, thread mark;302, fixing nut;4, connecting piece. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0031] Reference Figure 3 ,Figure 4 And Figure 5 The utility model provides a kind of concrete implementation mode: a spliced stator core, including multiple core blocks 1, stator outer frame 2 and multiple insertion rods 3, the middle part of the outer wall edge of core block 1 is all equipped with T slot 103, the inner wall of stator outer frame 2 is all fixedly connected with multiple T blocks 203, the middle part of the side of T block 203 close to the center of stator outer frame 2 is all equipped with second connecting hole 204, the middle part of the side of core block 1 close to the center of stator outer frame 2 is all equipped with first connecting hole 104, the middle part of the outer wall of the front end of core block 1 is all closely combined with connecting piece 4, the outer wall of the front end of insertion rod 3 is all closely combined with the inner wall of connecting piece 4, the outer wall of the front end of connecting piece 4 is all provided with two fixed nuts 302, by the cooperation of T slot 103 and T block 203, and the use of insertion rod 3 and connecting piece 4, the installation and fixation of core block 1 become more simple and fast, this design allows core block 1 to be replaced alone, reduces maintenance cost and difficulty, insertion rod 3 is connected with core block 1 and stator outer frame 2 by first connecting hole 104 and second connecting hole 204, and is fixed by connecting piece 4 and fixed nut 302, and the rigidity and stability of the entire stator core are improved by such multiple fixed mode.

[0032] Refer to Figure 1 , Figure 2 And Figure 4 The edge of the outer wall of core block 1 is all equipped with multiple air holes 101, air hole 101 is all located at the two sides of T slot 103, heat dissipation is helped by air hole 101, reduces the temperature rise of core in the process of motor operation, to improve the efficiency and life of motor, the middle part of the two sides of the outer wall of core block 1 is all equipped with embedding wire slot 102, embedding wire slot 102 provides fixed position for winding, facilitate winding operation, and also ensure the neatness and stability of winding, the middle part of the two sides of the outer wall of stator outer frame 2 is all fixedly connected with mounting block 201, the middle part of mounting block 201 is all equipped with mounting hole 202, by the design of mounting block 201 and mounting hole 202, the entire stator core can be conveniently installed on motor shell or other structure, and installation efficiency is improved.

[0033] Refer to Figure 1 , Figure 2 And Figure 3The outer wall of the T-shaped block 203 is tightly fitted with the inner wall of the T-shaped groove 103, so that the iron core block 1 can be quickly positioned at the appropriate position on the stator outer frame 2, facilitating installation, and the outer wall of the rear end of the insertion rod 3 is respectively slidably fitted with the inner wall of the first connecting hole 104 and the second connecting hole 204, so that the insertion rod 3 can be easily taken out when the iron core block 1 needs to be replaced or maintained, reducing the difficulty and time of disassembly, and the outer wall of the front end of the insertion rod 3 is provided with a threaded trace 301, the outer wall of the threaded trace 301 is threadedly connected with the inner wall of a fixing nut 302, and the insertion rod 3 is fixed through the connecting piece 4 and the fixing nut 302, further improving the rigidity and stability of the entire stator core.

[0034] Working principle: first, the T-shaped groove 103 at the edge of the outer wall of the iron core block 1 is tightly fitted with the T-shaped block 203 on the inner wall of the stator outer frame 2, ensuring that the iron core block 1 is quickly positioned at the appropriate position on the stator outer frame 2, then the rear end of the insertion rod 3 is inserted into the first connecting hole 104 of the iron core block 1 and the second connecting hole 204 of the stator outer frame 2 through sliding fit, so that the rear end of the insertion rod 3 is tightly fitted with the inner wall of the two connecting holes, then the front end of the insertion rod 3 is tightly fitted with the connecting piece 4 at the middle of the outer wall of the front end of the iron core block 1, and the fixing nut 302 at the front end of the connecting piece 4 is threadedly connected with the threaded trace 301 at the front end of the insertion rod 3, so as to fix the insertion rod 3 and the iron core block 1, improve the rigidity and stability of the entire stator core, the air holes 101 on the outer wall of the iron core block 1 help to dissipate heat, improve the efficiency and service life of the motor, and the embedded wire groove 102 provides a fixed position for the winding, facilitating winding operation, finally, through the mounting blocks 201 and the mounting holes 202 on both sides of the stator outer frame 2, the entire stator core can be conveniently installed on the motor housing or other structures, completing the assembly of the motor.

[0035] Finally, it should be noted that the above description is only a preferred specific embodiment of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent replacements for some technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A spliced stator core comprising a plurality of core blocks (1), a stator outer frame (2) and a plurality of insertion rods (3), characterized in that: The middle part of the outer wall edge of the iron core block (1) is provided with a T-shaped groove (103), the inner wall of the stator outer frame (2) is fixedly connected with a plurality of T-shaped blocks (203), the middle part of the T-shaped block (203) close to one side of the center of the stator outer frame (2) is provided with a second connecting hole (204), the middle part of the iron core block (1) close to one side of the center of the stator outer frame (2) is provided with a first connecting hole (104), the middle part of the outer wall of the front end of the iron core block (1) is tightly combined with a connecting piece (4), the outer wall of the front end of the plug rod (3) is tightly combined with the inner wall of the connecting piece (4), and the outer wall of the front end of the connecting piece (4) is provided with two fixed nuts (302).

2. A segmented stator core according to claim 1, characterized in that: The edge of the outer wall of the iron core block (1) is provided with a plurality of air holes (101), and the air holes (101) are located on both sides of the T-shaped groove (103).

3. A segmented stator core according to claim 1, characterized in that: The middle part of the outer wall of the iron core block (1) is provided with a wire embedding groove (102).

4. A segmented stator core according to claim 1, characterized in that: The middle part of the outer wall of the stator outer frame (2) is fixedly connected with a mounting block (201), and the middle part of the mounting block (201) is provided with a mounting hole (202).

5. A segmented stator core according to claim 1, characterized in that: The outer wall of the T-shaped block (203) is tightly combined with the inside of the T-shaped groove (103).

6. A segmented stator core according to claim 1, characterized in that: The outer wall of the rear end of the plug rod (3) is respectively and slidingly combined with the inner wall of the first connecting hole (104) and the second connecting hole (204).

7. A segmented stator core according to claim 1, characterized in that: The outer wall of the front end of the plug rod (3) is provided with a thread mark (301), and the outer wall of the thread mark (301) is screw-connected with the inner wall of the fixed nut (302).

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