Spliced rotor core structure
By processing the rotor punch into an arc plate and using the combination of the rotor bracket and mounting parts, the stable installation and fixing of the block rotor core structure is achieved, which solves the problems of complex and high cost of rotor core production in the prior art, and improves the stability and production efficiency of the product.
Patent Information
- Application Number
- CN202421255873.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-03
AI Technical Summary
The existing rotor core production methods are complex, with problems such as unclear structure, complex processing, high cost and poor connection reliability, especially in fan blade structures that require enhanced heat dissipation.
The block-type rotor core structure is adopted. By processing the rotor punch into multiple arc plates, and using the combination of the rotor bracket and mounting parts, the arc plate is stablely installed and fixed, reducing material losses and costs.
The production process of the rotor core is simplified, the production difficulty and cost are reduced, and the stability and firmness of the product are improved, avoiding problems such as false welding and over-welding.
Smart Images
Figure CN222654901U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of motor accessories, and in particular to a block-type rotor core structure. Background Art
[0002] There are generally two methods for making rotor cores: 1. For cast aluminum / copper rotors, the silicon steel sheets are fixed by stacking them on a tooling and casting them to form a rotor core; 2. For the rotor core of a permanent magnet motor, the rotor core is generally made by welding the outer circle of the silicon steel sheets, or by punching self-fastening points on the silicon steel sheets for fastening, or by riveting the silicon steel sheets with rivets, or by gluing them with special adhesives.
[0003] Among them, the production of the rotor core of the permanent magnet motor is particularly troublesome, especially when the rotor core needs to have fan blades to enhance heat dissipation. It is necessary to specially make fan blades and connect the fan blades and the rotor core by riveting, gluing, welding, or other additional structures. This method of producing the rotor core not only has the disadvantages of complex structure, unfavorable for the simplification of product structure, complex processing, and high manufacturing cost, but also has the disadvantages of false welding, over-welding perforation, degumming, die punching self-fastening points that damage the strength of the components, etc., which may affect the connection reliability of the components on the overall product, and ultimately affect the normal use and service life of the product.
[0004] For example, a rotor core. According to the patent specification, the main technical principle of the patent is to fix the laminated silicon steel sheets by passing the fixing bars through the fixing grooves on the silicon steel sheets, and to fix the laminated silicon steel sheets by twisting the extension sections at a certain angle to form fan blades. In addition, transverse cutting grooves are respectively arranged at both ends of the fixing bar, and the spacing between the two cutting grooves is the height of the laminated silicon steel sheets, so that the cutting grooves are close to the end faces of the two ends of the laminated silicon steel sheets, and the part where the extension section is twisted is the part where the cutting groove passes through, which is the torsion section. During assembly, the fixing bar is inserted to complete the lamination of the silicon steel sheets, and the torsion section is twisted transversely along the cutting groove, so that the torsion section forms an angle with the end of the main part of the fixing bar, and the inner edge of the torsion section is pressed against the surface of the silicon steel sheet, thereby ensuring the fixation of the rotor core.
[0005] The above-mentioned rotor core is usually an iron core structure formed by stacking a number of circular rotor punchings. When the outer diameter of the rotor core exceeds a certain size range, the structural strength of the rotor punchings will be reduced, making the processing and assembly more difficult and greatly increasing the manufacturing cost. Utility Model Content
[0006] In order to reduce the difficulty of manufacturing and thus reduce the manufacturing cost, the present application provides a block-type rotor core structure.
[0007] The present application provides a block-type rotor core structure that adopts the following technical solution:
[0008] A block-type rotor core structure, comprising
[0009] A rotor punching, wherein the rotor punching is composed of a plurality of arc-shaped plates spliced together, and the ends of adjacent arc-shaped plates abut against each other to form a circular rotor punching;
[0010] The rotor bracket is arranged inside the rotor punching sheet and is used to support and fix the rotor punching sheet. The rotor bracket is provided with a mounting groove for mounting the arc plate. The inner side of the arc plate is provided with a mounting piece mounted on the mounting groove.
[0011] By adopting the above technical scheme, the rotor core is formed by stacking multiple rotor punchings, and the rotor punchings are arranged into multiple arc plates. When processing the arc plates, the size requirements of the punching material are reduced. At the same time, the arc plates can be processed into grooves and screw holes of complex shapes as needed, which greatly reduces material loss and cost expenditure. The mounting parts of the arc plates are installed in the mounting grooves of the rotor bracket, and the arc plates are supported by the rotor bracket. Since the size of the arc plates is relatively small compared with the rotor punchings, the arc plates can be processed separately, which improves production efficiency, reduces production difficulty, and thus reduces production costs.
[0012] Preferably, the number of the arc-shaped plates is 6-10.
[0013] By adopting the above technical solution, 6-10 arc-shaped plates are arranged, and the size of the arc-shaped plates is convenient for assembly to the rotor bracket, and can be assembled and processed separately, thereby improving production efficiency and further reducing production costs.
[0014] Preferably, two mounting members are arranged along the inner side of the arc where the arc-shaped plate is located.
[0015] By adopting the above technical solution, when the arc plate is installed on the rotor bracket, the mounting piece is installed in the mounting groove, and two mounting pieces are arranged along the inner side of the arc where the arc plate is located, to ensure that the arc plate does not shake after installation, thereby improving the stability of the arc plate and further improving the firmness of the rotor punching after being assembled to the rotor bracket.
[0016] Preferably, the mounting groove is configured as a T-shaped groove, and the corresponding mounting piece is configured as a T-shaped block.
[0017] By adopting the above technical solution, the installation groove is set as a T-slot, and the mounting piece is set as a T-block. When the arc plate is installed, the installation is more stable, and the firmness of the rotor punching after being assembled to the rotor bracket is further improved.
[0018] Preferably, a fixing hole is provided on the arc-shaped plate, and a plurality of the arc-shaped plates are stacked by screws passing through the fixing hole to form an iron core structure.
[0019] By adopting the above technical solution, the thickness of the arc plate is very thin. When the arc plate is used to form an iron core, it is necessary to stack and splice multiple arc plates. Fixing holes are opened on the arc plate to facilitate the tight stacking of multiple layers of arc plates. The stacked arc blocks are installed on the rotor bracket through mounting parts, and then spliced into a complete rotor iron core to improve the overall quality.
[0020] Preferably, three fixing holes are provided, which are respectively located on the side surfaces at both ends of the arc plate and in the middle of the arc plate.
[0021] By adopting the above technical solution, when multiple arc-shaped plates are overlapped and connected, in order to prevent deflection or unevenness during the overlapping process, three fixing holes are set, and the three fixing holes are set at both ends and the middle of the arc-shaped plate. The center line of the three fixing holes can be regarded as an isosceles triangle, and the structure is more stable.
[0022] Preferably, a clamping member is further included, and the clamping member includes a first pressure plate arranged on one side of the rotor core and a second pressure plate arranged on the other side of the rotor core.
[0023] By adopting the above technical solution, the rotor core is installed on the outside of the rotor bracket through the mounting groove. In order to prevent the rotor core from falling off the rotor bracket, after the rotor core is installed, the rotor core is fixed to the outside of the rotor bracket by setting a first pressure plate and a second pressure plate, which makes it difficult to fall off and enhances the stability of the rotor core.
[0024] Preferably, the first pressing plate and the second pressing plate are fixedly connected by studs and nuts, and the arc-shaped plate is provided with mounting holes for the studs to pass through.
[0025] By adopting the above technical solution, the first pressing plate and the second pressing plate are fixedly connected by studs and nuts, and mounting holes for the studs to pass through are opened on the arc plate, so that the pressing plate can fix the arc plate conveniently.
[0026] Preferably, the mounting hole is opened at the T-shaped mounting piece.
[0027] By adopting the above technical solution, the mounting holes are opened at the T-shaped mounting parts, that is, two mounting holes are opened on each arc plate, which is convenient for fixing each arc plate and convenient for processing.
[0028] In summary, the present application includes at least one of the following beneficial technical effects:
[0029] 1. The rotor core is formed by laminating a plurality of rotor punchings, and the rotor punchings are arranged into a plurality of arc-shaped plates. When the arc-shaped plates are processed, the size requirements of the punching material are reduced. At the same time, the arc-shaped plates can be processed into grooves and screw holes of complex shapes as required, which greatly reduces material loss and cost expenditure. The mounting parts of the arc-shaped plates are installed in the mounting grooves of the rotor bracket, and the arc-shaped plates are supported by the rotor bracket. Since the size of the arc-shaped plates is relatively small compared with the rotor punchings, the arc-shaped plates can be processed separately, which improves production efficiency, reduces manufacturing difficulty, and thus reduces manufacturing cost;
[0030] 2. The arc plates are arranged in 6-10 pieces. The size of the arc plates is convenient for assembly to the rotor bracket and can be assembled and processed separately, which improves production efficiency and further reduces production costs;
[0031] 3. When the arc plate is installed on the rotor bracket, the mounting piece is installed into the mounting groove, and two mounting pieces are arranged along the inner side of the arc where the arc plate is located, so as to ensure that the arc plate does not shake after installation, improve the stability of the arc plate, and thus improve the firmness of the rotor punching after being assembled on the rotor bracket;
[0032] 4. The rotor core is installed on the outside of the rotor bracket through the mounting groove. To prevent the rotor core from falling off the rotor bracket, after the rotor core is installed, the rotor core is fixed to the outside of the rotor bracket by setting a first pressing plate and a second pressing plate. It is not easy to fall off, thereby enhancing the stability of the rotor core. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Figure 1 This is a schematic diagram of a block-type rotor core structure of the present application.
[0034] Figure 2 This is an exploded view of the block-type rotor core structure.
[0035] Figure 3 It is a schematic diagram of the curved plate structure.
[0036] Explanation of the reference numerals: 1. rotor punching sheet; 11. arc-shaped plate; 111. fixing hole; 112. mounting member; 1121. mounting hole; 2. rotor bracket; 21. mounting groove; 3. clamping member; 31. first pressure plate; 32. second pressure plate. DETAILED DESCRIPTION
[0037] The following is combined with Figure 1-2 This application is described in further detail.
[0038] The present application discloses a block-type rotor core structure. Figure 1 The block-type rotor core structure includes a rotor punching 1, a rotor bracket 2 and a clamping part 3.
[0039] Reference Figure 3 The rotor punching 1 is composed of a plurality of arc plates 11. Specifically, the arc plates 11 can be set to 6-10. In the present embodiment, the arc plates 11 are set to 8. The plurality of arc plates 11 are stacked together to form an iron core structure. Specifically, three fixing holes 111 are provided on the arc plates 11. When the arc plates 11 are stacked, the arc plates 11 are fixed by screws and nuts passing through the fixing holes 111. The 8 iron core structures are spliced into a circular rotor core. The rotor core is formed by stacking a plurality of rotor punchings 1. The rotor punchings 1 are set to a plurality of arc plates 11. When the arc plates 11 are processed, the size requirements of the punching material during the processing of the rotor punchings 1 are reduced. At the same time, the arc plates 11 can be processed into grooves and screw holes of complex shapes as needed, which greatly reduces material loss and cost expenditure. At the same time, because the size of the arc plates 11 is relatively small compared with the rotor punchings 1, the arc plates 11 can be processed separately, which improves production efficiency, reduces manufacturing difficulty, and thus reduces manufacturing cost.
[0040] Reference Figure 2 The rotor bracket 2 is used to support and fix the rotor punching sheet 1. Specifically, a plurality of mounting grooves 21 are circumferentially provided on the outer surface of the rotor bracket 2. The mounting grooves 21 are through grooves. Two mounting pieces 112 are arranged on the inner side of each arc plate 11. The mounting pieces 112 on the laminated core structure are inserted into the mounting grooves 21. The mounting grooves 21 are arranged as T-shaped grooves, and the mounting pieces 112 are arranged as T-shaped blocks. When the arc plate 11 is installed, the installation is more stable.
[0041] Reference Figure 1 , Figure 3 The clamping member 3 includes a first pressure plate 31 and a second pressure plate 32. The first pressure plate 31 and the second pressure plate 32 are arranged on both sides of the rotor core to clamp and fix the rotor core. A mounting hole 1121 is opened at the mounting member 112 of the arc plate 11. The first pressure plate 31 and the second pressure plate 32 are fixed by studs and nuts passing through the mounting holes 1121.
[0042] The implementation principle of a block-type rotor core structure in an embodiment of the present application is as follows: the rotor core is formed by stacking a plurality of rotor punchings 1, and the rotor punchings 1 are arranged into a plurality of arc-shaped plates 11. When the arc-shaped plates 11 are processed, the size requirements of the punching material during the processing of the rotor punchings 1 are reduced. At the same time, the arc-shaped plates 11 can be processed into grooves and screw holes of complex shapes as required, which greatly reduces material loss and cost expenditure. The mounting parts 112 of the arc-shaped plates 11 are installed in the mounting grooves 21 of the rotor bracket 2, and the arc-shaped plates 11 are supported by the rotor bracket 2. Since the size of the arc-shaped plates 11 is relatively small compared with the rotor punchings 1, the arc-shaped plates 11 can be processed separately, which improves production efficiency, reduces manufacturing difficulty, and thus reduces manufacturing costs.
[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A block-type rotor core structure, characterized in that: include A rotor punching (1), wherein the rotor punching (1) is composed of a plurality of arc-shaped plates (11) spliced together, and ends of adjacent arc-shaped plates (11) abut against each other to form a circular rotor punching (1); A rotor support (2), the rotor support (2) being arranged inside the rotor punching (1) and used for supporting and fixing the rotor punching (1), the rotor support (2) being provided with a mounting groove (21) for mounting the arc plate (11), and a mounting piece (112) mounted on the mounting groove (21) being arranged inside the arc plate (11).
2. The block rotor core structure according to claim 1, characterized in that: The number of the arc-shaped plates (11) is 6 to 10.
3. The block rotor core structure according to claim 2, characterized in that: Two mounting members (112) are arranged along the inner side of the arc where the arc-shaped plate (11) is located.
4. The block rotor core structure according to claim 1, characterized in that: The mounting groove (21) is configured as a T-shaped groove, and the corresponding mounting piece (112) is configured as a T-shaped block.
5. The block rotor core structure according to claim 3, characterized in that: A fixing hole (111) is provided on the arc-shaped plate (11), and a plurality of the arc-shaped plates (11) are stacked by means of screws inserted through the fixing holes (111) to form an iron core structure.
6. The block-type rotor core structure according to claim 5, characterized in that: The fixing holes (111) are arranged in three numbers, and are respectively located at the side surfaces at both ends of the arc-shaped plate (11) and in the middle of the arc-shaped plate (11).
7. The block-type rotor core structure according to claim 1, characterized in that: It also includes a clamping piece (3), wherein the clamping piece (3) includes a first pressure plate (31) arranged on one side of the rotor core and a second pressure plate (32) arranged on the other side of the rotor core.
8. The block-type rotor core structure according to claim 7, characterized in that: The first pressing plate (31) and the second pressing plate (32) are fixedly connected via studs and nuts, and a mounting hole (1121) for the studs to pass through is provided on the arc-shaped plate (11).
9. The block-type rotor core structure according to claim 8, characterized in that: The mounting hole (1121) is provided at the mounting member (112).