Electric reactor adopting central column separation structure

Abstract

An electric reactor adopting a central column separation structure comprises a first iron core and a second iron core, the first iron core is fixedly connected with the second iron core, the central iron core is fixedly arranged between the first iron core and the second iron core, an insulating material is arranged between the central iron core and the first iron core, and the insulating material is arranged between the central iron core and the second iron core. An insulating material is arranged between the center iron core and the second iron core, the center iron core is of a split structure, air gaps are formed between the center iron core and the first iron core and between the center iron core and the second iron core through the insulating material, compared with a traditional EI structure, a better filtering effect is achieved, the side face of the center iron core is covered with an insulating material, and the insulating distance between the center iron core and the coil is greatly shortened. The length of the coil is greatly reduced, the material cost is reduced, the direct-current resistance of the coil is reduced, and the copper loss is reduced.

Description

Technical Field

[0001] The utility model relates to a reactor adopting a central column separation structure. Background Art

[0002] At present, the small reactor of EI structure with high production efficiency adopts EI-shaped silicon steel sheet + hollow coil structure. The hollow coil is installed on the E-shaped center column. The part of the coil passing through the core window is insulated by insulating paper. The two ends on the inner side of the coil and the core column need to leave a gap of more than 5mm to ensure the insulation distance. When winding the coil, the inner length needs to be more than 14mm longer than the core thickness. This increases the length of the wire, resistance, line loss, and also causes material waste. The air gap of the conventional EI core is set at the junction of the center column and the I sheet. When the air gap needs to be increased to meet the linear stability of the inductance, the leakage magnetic flux increases, and the diffraction phenomenon of the air gap magnetic flux increases significantly, which increases the loss of the reactor. Utility Model Content

[0003] The purpose of the utility model is to solve the deficiencies of the above-mentioned prior art and to provide a reactor with a center column separation structure. The center column is separately arranged, and insulating material is arranged on the contact surface of the iron core, so that a sufficient air gap can be formed between the center column and the U-shaped and I-shaped iron cores.

[0004] On the one hand, a reactor adopting a center column separation structure includes: a first core and a second core, the first core is fixedly connected to the second core, a center core is fixedly arranged between the first core and the second core, an insulating material is arranged between the center core and the first core, and an insulating material is arranged between the center core and the second core.

[0005] In one embodiment, an insulator is further provided on the surface of the central core.

[0006] In one embodiment, the first core is U-shaped, the second core is I-shaped, and the second core is fixed at an opening of the U-shaped structure of the first core.

[0007] In one embodiment, the insulation completely surrounds the central core.

[0008] In one embodiment, the insulation partially surrounds the central core.

[0009] In one embodiment, the insulation wraps around all sides of the central core.

[0010] In one embodiment, the insulating material is insulating paper or high temperature resistant resin.

[0011] In one embodiment, the insulating material is insulating paper or high temperature resistant resin.

[0012] Beneficial effects: The central core has a split structure, and an air gap is formed between the first core and the second core through insulating materials. Compared with the traditional EI structure, a better filtering effect is achieved. The side of the central core is covered with insulating material, which greatly shortens the insulation distance between the central core and the coil, greatly reduces the coil length, reduces material costs, reduces the DC resistance of the coil, and reduces copper loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model; DETAILED DESCRIPTION

[0015] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0016] Please refer to Figure 1-Figure 2 In this embodiment, a reactor adopting a center column separation structure includes: a first core 1 and a second core 2, the first core 1 and the second core 2 are fixedly connected, the center core 3 is fixedly arranged between the first core 1 and the second core 2, an insulating material 4 is arranged between the center core 3 and the first core 1, an insulating material 4 is arranged between the center core 3 and the second core 2, an insulating material 5 is also arranged on the surface of the center core 3, the first core 1 is U-shaped, the second core 2 is I-shaped, the second core 2 is fixed at the opening of the U-shaped structure of the first core 1, the insulating material 5 completely wraps the center core 3, the insulating material 5 is insulating paper or high temperature resistant resin, and the insulating material 4 is insulating paper or high temperature resistant resin.

[0017] In another embodiment, all side surfaces of the central core 3 are wrapped with insulation 5 , specifically, except for the contact surfaces with the first core 1 and the second core 2 , all side surfaces are wrapped with insulation 5 , which can save materials for the upper and lower insulation 5 .

[0018] The split structure of the center core 3 and the setting of the insulating material achieve a better filtering effect than the traditional EI structure. The center core 3 is covered with the insulating material 5, which greatly shortens the insulation distance between the center core 3 and the coil, greatly reduces the coil length, reduces the material cost, reduces the DC resistance of the coil, and reduces the copper loss. Please refer to the following table for specific effects.

[0019]

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A reactor adopting a center column separation structure, characterized in that: include: a first core and a second core, wherein the first core is fixedly connected to the second core, and a central core is fixedly disposed between the first core and the second core; An insulating material is provided between the central core and the first core, and an insulating material is provided between the central core and the second core.

2. The reactor with a center column separation structure according to claim 1, characterized in that: An insulator is also provided on the surface of the central core.

3. The reactor with a center column separation structure according to claim 1, characterized in that: The first core is U-shaped, the second core is I-shaped, and the second core is fixed at the opening of the U-shaped structure of the first core.

4. The reactor with a center column separation structure according to claim 2, characterized in that: The insulation completely surrounds the central core.

5. The reactor with a center column separation structure according to claim 2, characterized in that: The insulation portion wraps around the central core.

6. The reactor with a center column separation structure according to claim 5, characterized in that: The insulation wraps around all sides of the central core.

7. The reactor with a center column separation structure according to claim 2, characterized in that: The insulating material is insulating paper or high temperature resistant resin.

8. The reactor with a center column separation structure according to claim 1, characterized in that: The insulating material is insulating paper or high temperature resistant resin.

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