Spliced iron core structure with high utilization rate

Abstract

The utility model relates to the technical field of motors, in particular to a high-utilization-rate block iron core structure, which is more convenient for a worker to punch from a plate material by changing the shape of a block iron core, improves the utilization rate of the plate material, reduces the waste of the material and saves the cost. Comprising eighteen groups of block iron cores, the transformer further comprises eighteen groups of plastic blocks, and the eighteen groups of plastic blocks are installed on the eighteen groups of block iron cores respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a high-utilization block iron core structure. Background Art

[0002] The stator core is an important component of the motor's magnetic circuit. Together with the rotor core and the air gap between the stator and rotor, it constitutes the complete magnetic circuit of the motor.

[0003] The existing core structure, for example, a spliced ​​motor core disclosed in the utility model patent application number 202323374157.4, has a main structure comprising several independent stator blocks, each of which includes at least one stator tooth shank and a stator tooth segment connected to the stator tooth shank. A splicing block is provided on the stator tooth segment, which is used to splice adjacent stator tooth segments to form a complete annular motor stator core; a plurality of rivet points are stamped on the stator tooth shank and the stator tooth segment, which are used to stack and press the stator tooth segments; when in use, multiple rivet points are stamped on the stator tooth shank and the stator tooth segment. Due to the sunken structure of the rivet points, multiple layers of tooth segments can be stacked and buckled and pressed together. For a single tooth segment, the traditional semicircular structure or dovetail locking structure is transformed into a connecting groove and splicing block that engage with each other on the left and right. At the same time, a symmetrical mounting groove is opened on the top. The convex semicircular dividing head formed by the mounting groove can be inserted into a special-shaped part to form a locking structure.

[0004] However, the stator and rotor core materials of existing motors are mostly silicon steel sheets, which require special stamping dies for punching. The raw materials of silicon steel sheets are usually whole pieces of silicon steel plates, and silicon steel sheets are usually overall round and block-shaped. Therefore, when punching on a whole piece of plate, a large amount of waste is usually generated, resulting in material waste and increased costs. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a high-utilization block core structure which makes it more convenient for workers to punch out the sheet material by changing the shape of the block core, thereby improving the utilization rate of the sheet material, reducing material waste and saving costs.

[0006] The utility model discloses a high-utilization block iron core structure, which includes eighteen groups of block iron cores; it also includes eighteen groups of plastic blocks, which are respectively installed on the eighteen groups of block iron cores; the eighteen groups of plastic blocks are respectively installed on the eighteen groups of block iron cores, and the eighteen groups of block iron cores are assembled and installed in a casing, and enameled wires are wound around the eighteen groups of plastic blocks to facilitate magnetic conduction.

[0007] Preferably, the outer diameter and height of the segmented iron core are consistent with the size of the existing segmented iron core, and the tooth boots on both sides of the single iron core are removed, while the remaining yoke and tooth parts remain consistent; by keeping the yoke and tooth parts consistent, the magnetic flux density at each position is ensured to be consistent, thereby ensuring the consistency of performance, and by removing the tooth boots on both sides, it is convenient to punch out on the plate, saving sheet material.

[0008] Preferably, plastic blocks are also included to fill the tooth shoe parts on both sides of the segmented iron core that have been cut off; by providing the plastic blocks, the enameled wire can be limited during winding to prevent it from slipping.

[0009] Preferably, the plate area required for the traditional iron core is 107.4*17.2=1847.3 mm2, and the plate area required for punching the eighteen-group block iron core of the utility model is 19.8*72.4=1433.5, saving material by (1847.3-1433.5) / 1847.3=22.4%.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: eighteen groups of plastic blocks are respectively installed on eighteen groups of block cores, the eighteen groups of block cores are assembled and installed in the casing, and the enameled wire is wound around the eighteen groups of plastic blocks to facilitate magnetic conduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the blanking layout structure of the traditional stator core;

[0012] Figure 2 This is a schematic diagram of the punching layout structure of the utility model;

[0013] Figure 3 This is an axonometric structural diagram of the utility model;

[0014] Figure 4 This is a front view structural diagram of the present utility model;

[0015] Figure 5 This is a comparison diagram of the blanking layout of the stator core of the utility model and the traditional stator core.

[0016] Markings in the attached figure: 01, block core; 02, plastic block. DETAILED DESCRIPTION

[0017] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0018] Example 1

[0019] The utility model provides a high-utilization block core structure, including eighteen groups of block cores 01; also including eighteen groups of plastic blocks 02, which are respectively installed on the eighteen groups of block cores 01; the outer diameter and height of the block core 01 are consistent with the size of the existing block core, while the tooth shoe parts on both sides of a single iron core are removed, and the remaining yoke parts and tooth parts are kept consistent; when it is working, the yoke parts and tooth parts are kept consistent, thereby ensuring the consistency of magnetic flux density at each position, thereby ensuring the consistency of performance, and by removing the tooth shoe parts on both sides, it is convenient to punch out on the plate, saving sheet material.

[0020] Example 2

[0021] like Figures 1 to 5 As shown, the utility model has a high-utilization block core structure, based on Example 1; it also includes plastic blocks 02 filling the tooth boot parts on both sides of the segmented core 01 that are cut off; it also includes that the plate area required for the traditional core is 107.4*17.2=1847.3mm2, and the plate area required for punching eighteen groups of segmented cores 01 of the utility model is 19.8*72.4=1433.5, saving material by (1847.3-1433.5) / 1847.3=22.4%; when it is working, the yoke and the tooth parts are kept consistent, thereby ensuring the consistency of the magnetic flux density at each position, thereby ensuring the consistency of performance, and by removing the tooth boot parts on both sides, it is convenient to punch on the plate, saving plate material, and by setting the plastic block 02, it is convenient to limit the enameled wire during winding to prevent the enameled wire from slipping.

[0022] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A high-utilization block core structure, comprising eighteen groups of block cores (01); characterized in that: It also includes eighteen groups of plastic blocks (02), which are respectively installed on the eighteen groups of block iron cores (01).

2. A high-utilization block core structure according to claim 1, characterized in that: The outer diameter and height of the segmented iron core (01) are consistent with the size of the existing segmented iron core, and the tooth boots on both sides of the single iron core are removed, while the remaining yoke and tooth parts remain consistent.

3. A high-utilization block core structure according to claim 2, characterized in that: It also includes plastic blocks (02) filling the tooth shoe parts on both sides of the segmented iron core (01) that have been cut off.

Images