EI-type silicon steel sheet for transformer
By designing the insert, slot and limit structure in the EI type silicon steel sheet, the problem of the loose silicon steel sheet in the transformer core is solved, the stable locking of the silicon steel sheet is achieved, and the effect of the transformer is improved.
Patent Information
- Application Number
- CN202421974803.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-08-15
AI Technical Summary
When making the transformer core, the EI type silicon steel sheet is prone to loosening during high-speed operation, resulting in the surface wear of the silicon steel sheet and affecting the use effect of the transformer.
The structural improvements of E-type silicon steel sheets and I-type silicon steel sheets are designed. By setting through grooves and inserts on the side walls of the I-type silicon steel sheets, and slots and T-type grooves are provided on the side walls of the E-type silicon steel sheets. The coupling of the spring and the insert rods is used to achieve the locking of the limit rods to prevent the silicon steel sheets from being loose.
Effectively lock E-type and I-type silicon steel sheets to avoid loosening of silicon steel sheets, reduce friction and wear, and improve the stability of the transformer core.
Smart Images
Figure CN223245375U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of silicon steel sheets, in particular to an EI type silicon steel sheet for transformers. Background Art
[0002] Silicon steel sheet is a soft magnetic alloy of ferrosilicon with extremely low carbon content. It is mainly used to make the cores of various transformers, motors and generators. When making the cores of transformers, motors and generators, several silicon steel sheets need to be stacked together.
[0003] At present, when EI type silicon steel sheets are staggered and stacked, they are mostly placed directly against each other. When the iron core formed by stacking EI type silicon steel sheets runs at high speed, it is easy to cause the E type silicon steel sheets and the I type silicon steel sheets to become loose, which causes the E type silicon steel sheets to easily rub against the I type silicon steel sheets, resulting in surface wear, which will affect the use effect of the transformer core.
[0004] Therefore, it is necessary to invent a transformer EI type silicon steel sheet to solve the above problems. Utility Model Content
[0005] The purpose of the present utility model is to provide an EI type silicon steel sheet for a transformer to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an EI type silicon steel sheet for a transformer, comprising an E type silicon steel sheet body and an I type silicon steel sheet body, the side wall of the I type silicon steel sheet body being provided with a through groove, and an insert being provided in the through groove, the side wall of the E type silicon steel sheet body being provided with a slot corresponding to the insert, a T-slot being provided in the insert, a spring being connected to the horizontal portion of the T-slot, an insert rod being connected to the other end of the spring, the upper and lower sides of the insert rod being provided with inclined surfaces, two limit rods being provided in the vertical portion of the T-slot, limit grooves corresponding to the limit rods being provided on the upper and lower sides of the slot, and a limit plate being connected to the right side of the insert.
[0007] Preferably, two first card slots are opened on the front side of the E-type silicon steel sheet body, a second card slot is opened on the front side of the I-type silicon steel sheet body, the rear side of the E-type silicon steel sheet body is connected with a first card block corresponding to the second card slot, and the rear side of the I-type silicon steel sheet body is connected with a second card block corresponding to the first card slot.
[0008] Preferably, through holes are provided on both the upper and lower sides of the E-shaped silicon steel sheet, and the through holes are connected to the limiting grooves.
[0009] Technical effects and advantages of this utility model:
[0010] By inserting the insert into the through slot on the I-type silicon steel sheet body, the limit rod squeezes the insert rod, and the insert rod squeezes the spring, causing the spring to deform and causing the limit rod to be located in the T-slot. Continue to push the insert to insert the insert into the slot on the E-type silicon steel sheet body. When the limit rod corresponds to the limit slot, the spring pushes the insert rod, and the insert rod pushes the limit rod, causing the limit rod to extend into the limit slot, and the limit plate is used to limit the I-type silicon steel sheet body, which can effectively lock the E-type silicon steel sheet body and the I-type silicon steel sheet body, thereby avoiding the problem of the E-type silicon steel sheet body and the I-type silicon steel sheet body being easily loose. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0012] Figure 2 For this utility model Figure 1 A schematic diagram of a top-view cross-sectional structure;
[0013] Figure 3 For this utility model Figure 1 Schematic diagram of the enlarged structure of part A.
[0014] In the figure: 1. E-type silicon steel sheet body; 2. I-type silicon steel sheet body; 3. Insert; 4. T-slot; 5. Spring; 6. Insert rod; 7. Limit rod; 8. Limit slot; 9. Limit plate; 10. First clamping slot; 11. Second clamping slot; 12. First clamping block; 13. Second clamping block. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0016] The utility model provides Figure 1-3The EI type silicon steel sheet for a transformer shown in the figure includes an E type silicon steel sheet body 1 and an I type silicon steel sheet body 2, the side wall of the I type silicon steel sheet body 2 is provided with a through groove, and an insert 3 is provided in the through groove, the side wall of the E type silicon steel sheet body 1 is provided with a slot corresponding to the insert 3, a T-slot 4 is provided in the insert 3, a spring 5 is connected to the horizontal part of the T-slot 4, the other end of the spring 5 is connected to the insert rod 6, the upper and lower sides of the insert rod 6 are set as inclined surfaces, two limit rods 7 are provided in the vertical part of the T-slot 4, and the upper and lower sides of the slot are provided with limit grooves 8 corresponding to the limit rod 7, and the right side of the insert 3 is connected to a limit plate 9, through When the locking cam 7 is in the unlock state, the locking cam 7 is in the unlock state, and the locking cam 7 is in the unlock state, so that the locking cam 7 is locked and the locking cam 7 is locked.
[0017] The front side of the E-type silicon steel sheet body 1 is provided with two first card slots 10, the front side of the I-type silicon steel sheet body 2 is provided with a second card slot 11, the rear side of the E-type silicon steel sheet body 1 is connected with a first card block 12 corresponding to the second card slot 11, and the rear side of the I-type silicon steel sheet body 2 is connected with a second card block 13 corresponding to the first card slot 10. By stacking the E-type silicon steel sheet body 1 on the I-type silicon steel sheet body 2, the first card block 12 on the E-type silicon steel sheet body 1 is extended into the second card slot 11 of the I-type silicon steel sheet body 2. By stacking the I-type silicon steel sheet body 2 on the E-type silicon steel sheet body 1, the second card block 13 on the I-type silicon steel sheet body 2 is extended into the first card slot 10 of the E-type silicon steel sheet body, thereby effectively preventing vibration wear.
[0018] The E-type silicon steel sheet 1 is provided with through holes on both the upper and lower sides, and the through holes are connected to the limit groove 8. By inserting a thin metal rod into the through hole and squeezing the limit rod 7 in the limit groove 8, the limit rod 7 can be squeezed into the T-slot 4, thereby facilitating the separation of the E-type silicon steel sheet body 1 and the I-type silicon steel sheet body 2.
[0019] Working principle of this utility model:
[0020] By stacking the E-type silicon steel sheet body 1 on the I-type silicon steel sheet body 2, the first clamping block 12 on the E-type silicon steel sheet body 1 is inserted into the second clamping groove 11 of the I-type silicon steel sheet body 2. By stacking the I-type silicon steel sheet body 2 on the E-type silicon steel sheet body 1, the second clamping block 13 on the I-type silicon steel sheet body 2 is inserted into the first clamping groove 10 of the E-type silicon steel sheet body. By inserting the inserting piece 3 into the through groove on the I-type silicon steel sheet body 2, the limiting rod 7 squeezes the inserting rod 6, and the inserting rod 6 squeezes the spring 5, causing the spring 5 to deform and causing the limiting rod 7 to be located in the T-slot 4. Continue to push the insert 3 and insert the insert 3 into the slot on the E-type silicon steel sheet body 1. When the limiting rod 7 corresponds to the limiting slot 8, the spring 5 pushes the insert rod 6, and the insert rod 6 pushes the limiting rod 7, causing the limiting rod 7 to extend into the limiting slot 8, and the limiting plate 9 is used to limit the I-type silicon steel sheet body 2, which can effectively lock the E-type silicon steel sheet body 1 and the I-type silicon steel sheet body 2.
[0021] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. An EI-type silicon steel sheet for a transformer, comprising an E-type silicon steel sheet body and an I-type silicon steel sheet body, characterized in that: The side wall of the I-type silicon steel sheet body is provided with a through groove, and an insert is provided in the through groove. The side wall of the E-type silicon steel sheet body is provided with a slot corresponding to the insert, and a T-slot is provided in the insert. A spring is connected to the horizontal part of the T-slot, and the other end of the spring is connected to an insertion rod. The upper and lower sides of the insertion rod are set as inclined surfaces, and two limit rods are provided in the vertical part of the T-slot. Limit slots corresponding to the limit rods are provided on the upper and lower sides of the slot, and a limit plate is connected to the right side of the insert.
2. The EI type silicon steel sheet for transformer according to claim 1, characterized in that: The front side of the E-type silicon steel sheet body is provided with two first card slots, the front side of the I-type silicon steel sheet body is provided with a second card slot, the rear side of the E-type silicon steel sheet body is connected to a first card block corresponding to the second card slot, and the rear side of the I-type silicon steel sheet body is connected to a second card block corresponding to the first card slot.
3. The EI type silicon steel sheet for transformer according to claim 1, characterized in that: Through holes are provided on both the upper and lower sides of the E-shaped silicon steel sheet, and the through holes are communicated with the limiting grooves.