Planar reactor

Abstract

The planar reactor is composed of a bottom frame, a core, a primary winding and a secondary winding. The bottom frame is composed of four nylon plates with the same specification, i.e. nylon plate I, nylon plate II, nylon plate III and nylon plate IV. There are corresponding bolt through holes for assembling the reactor at the edges of the four nylon plates. There is a middle recess I on the nylon plate I, and the core I is embedded in the middle recess I. There is a middle recess II with a wire outlet on the nylon plate II, and the secondary winding is embedded in the middle recess II. There is a middle recess III with a wire outlet on the nylon plate III, and the primary winding is embedded in the middle recess III. There is a middle recess IV on the nylon plate IV, and the core II is embedded in the middle recess IV. The embedded nylon plate I, the embedded nylon plate II, the embedded nylon plate III and the embedded nylon plate IV are bolted together in a set direction and sequence. Compared with the prior art, the planar reactor has compact shape, small space occupation, lowered gravity center of the reactor and good stability.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of electric reactors, especially a kind of plane electric reactors. BACKGROUND

[0002] At present, the iron core of the electric reactor of prior art is basically rectangular frame, and the chassis is steel plate with bolt through hole fixed at the bottom of the rectangular frame. Although the technology of such electric reactor is mature, it cannot meet the requirements of limited height size (such as some elevators) due to its large height size. Therefore, it is a technical problem to be solved to design a plane electric reactor. SUMMARY

[0003] The present application provides a kind of plane electric reactors to solve the technical problem.

[0004] The technical scheme for solving the technical problem of the present application is as follows:

[0005] The plane electric reactor is composed of a chassis, an iron core, a primary winding and a secondary winding. The chassis is composed of four nylon plates with the same specifications, i.e. nylon plate I, nylon plate II, nylon plate III and nylon plate IV. There are corresponding bolt through holes for assembling the electric reactor at the edges of the four nylon plates. There is a middle recess I on the nylon plate I, and the iron core I is embedded in the middle recess I. There is a middle recess II with an outlet on the nylon plate II, and the secondary winding is embedded in the middle recess II. There is a middle recess III with an outlet on the nylon plate III, and the primary winding is embedded in the middle recess III. There is a middle recess IV in the nylon plate IV, and the iron core II is embedded in the middle recess IV. The embedded nylon plate I, nylon plate II, nylon plate III and nylon plate IV are connected together by bolts in a set direction and order.

[0006] As a preferred scheme of the present application, the primary winding is a spiral coil. There is a spiral groove for embedding the spiral coil of the primary winding in the middle recess III of the nylon plate III. The outlet of the spiral coil has two, one of which is a gap opened along the edge of the middle recess III of the nylon plate III, and the other is a hole penetrating the nylon plate III in the middle recess III of the nylon plate III. There is a wire slot on the flat side of the nylon plate III for leading the wire from the hole in the middle recess III of the nylon plate III out of the nylon plate III.

[0007] As a preferred scheme of the present application, the secondary winding is a ring-shaped coil. There is a ring-shaped wire slot for embedding the ring-shaped coil in the middle recess II of the nylon plate II. The ring-shaped coil is embedded in the ring-shaped wire slot. The outlet of the nylon plate II has two gaps opened along the edge of the middle recess II of the nylon plate II. All the wires of the ring-shaped coil are led out of the two gaps, and the led-out wires are connected in parallel respectively.

[0008] As a preferred scheme of the present application, the iron core I embedded in the middle recess I of the nylon plate I matches with the secondary winding, and the iron core II embedded in the middle recess III of the nylon plate III matches with the primary winding.

[0009] As a preferred scheme of the present application, the nylon plate I, the nylon plate II, the nylon plate III and the nylon plate IV are rectangular nylon plates, the primary winding on the nylon plate I, the nylon plate II, the nylon plate III and the nylon plate IV is a rectangular ring coil, and the secondary winding is a rectangular spiral coil.

[0010] As a preferred scheme of the present application, the wire for making the primary winding and the secondary winding is a Litz wire, and the material of the iron core I and the iron core II is ferrite, i.e. the iron core I embedded in the middle recess I of the nylon plate I is ferrite, and the iron core II embedded in the middle recess III of the nylon plate III is ferrite.

[0011] As a preferred scheme of the present application, the ferrite embedded in the middle recess I of the nylon plate I and the middle recess III of the nylon plate III is composed of a plurality of small ferrites.

[0012] Knowledge points of the present application:

[0013] ① Calculation of the specification of the Litz wire used by the planar reactor;

[0014] ② Selection and size calculation of the material of the ferrite.

[0015] Essential points of the present application:

[0016] The Litz wire and the ferrite are respectively embedded in the respective slots engraved in the nylon plate, and are fixed by sealing glue, and finally the two are fastened by fastening bolts to form an integral body.

[0017] Compared with the prior art, the present application has compact shape, small space occupation, reduces the gravity center of the reactor, and has good stability. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of the present application;

[0019] Figure 2 is a component arrangement view of the present application;

[0020] Figure 3 is Figure 1 , Figure 2 a structural schematic view of the middle piece 1;

[0021] Figure 4 is Figure 3 an A-A sectional view of

[0022] Figure 5 is Figure 1 , Figure 2Structure diagram of the middle piece 3;

[0023] Figure 6 is Figure 5 B-B sectional view of;

[0024] Figure 7 is Figure 1 , Figure 2 Structure diagram of the middle piece 2;

[0025] Figure 8 is Figure 7 C-C sectional view of;

[0026] Figure 9 Figure 1 , Figure 2 Structure diagram of the middle piece 4;

[0027] Figure 10 is Figure 9 D-D sectional view of. DETAILED DESCRIPTION

[0028] As shown in the figure, the planar reactor is composed of a chassis, a core, a primary winding 3-1 and a secondary winding 2-1, the chassis is composed of four nylon plates I 1, II 2, III 3 and IV 4 with the same specification, there are corresponding bolt passing holes 5 for the assembly of the reactor at the edges of the four nylon plates, there is a middle recess I on the nylon plate I 1, the core I 1-1 is embedded in the middle recess I, there is a middle recess II with a wire outlet on the nylon plate II 2, the secondary winding 2-1 is embedded in the middle recess II, there is a middle recess III with a wire outlet on the nylon plate III 3, the primary winding 3-1 is embedded in the middle recess III, there is a middle recess IV in the nylon plate IV 4, the core II 4-1 is embedded in the middle recess IV, and the embedded nylon plate I 1, the nylon plate II 2, the nylon plate III 3 and the nylon plate IV 4 are connected together in the set direction and order by the bolt 6.

[0029] The primary winding 3-1 is a spiral coil, there is a spiral groove for embedding the spiral coil of the primary winding in the middle recess III of the nylon plate III 3, the wire outlet of the spiral coil has two, one of which is a gap opened along the edge of the middle recess III of the nylon plate III 3, and the other is a hole penetrating the nylon plate III 3 in the middle recess III of the nylon plate III 3, there is a wire slot on the whole plane side of the nylon plate III 3 for the external lead of the hole for the wire of the winding to penetrate the nylon plate III 3 from the middle recess III of the nylon plate III 3.

[0030] The secondary winding 2-1 is a ring coil, the ring coil is inlaid in the ring slot on the middle recess II of the nylon plate II 2, all the wires of the ring coil are led out from the two gaps on the edge of the middle recess II of the nylon plate II 2, and the led-out wires are respectively connected in parallel.

[0031] The iron core I 1-1 inlaid in the middle recess I of the nylon plate I 1 matches the secondary winding 2-1, and the iron core II 4-1 inlaid in the middle recess III of the nylon plate III 3 matches the primary winding 3-1.

[0032] The nylon plate I 1, the nylon plate II 2, the nylon plate III 3 and the nylon plate IV 4 are rectangular nylon plates, the primary winding 3-1 on the nylon plate I 1, the nylon plate II 2, the nylon plate III 3 and the nylon plate IV 4 is a rectangular ring coil, and the secondary winding 2-1 is a rectangular spiral coil.

[0033] The wires of the primary winding 3-1 and the secondary winding 2-1 are litz wires, and the materials of the iron core I 1-1 and the iron core II 4-1 are ferrite, that is, the iron core I 1-1 inlaid in the middle recess I of the nylon plate I 1 is ferrite, and the iron core II 4-1 inlaid in the middle recess III of the nylon plate III 3 is ferrite.

[0034] The ferrite inlaid in the middle recess I of the nylon plate I 1 and the middle recess III of the nylon plate III 3 is composed of a plurality of small ferrite blocks. Embodiment

[0035] Specification: 200A 44uH ± 5%,

[0036] Insulation level: H level,

[0037] Temperature rise: ≤60K,

[0038] Insulation withstand voltage: coil to nylon plate AC 2500V 1min, coil to ferrite AC 2500V 1min,

[0039] Insulation resistance: DC 1000V >100MΩ.

Claims

1. A planar reactor, comprising a base frame, an iron core, a primary winding (3-1), and a secondary winding (2-1), characterized in that, The base frame is composed of four nylon plates of the same specifications: nylon plate I (1), nylon plate II (2), nylon plate III (3), and nylon plate IV (4). There are corresponding bolt holes (5) for reactor assembly at the edges of the four nylon plates. Nylon plate I (1) has a central recess I, in which an iron core I (1-1) is embedded. Nylon plate II (2) has a central recess II with a wire outlet. The secondary winding ( 2-1) Embedded in the central recess II, the nylon plate III (3) has a central recess III with a wire outlet, the primary winding (3-1) is embedded in the central recess III, the nylon plate IV (4) has a central recess IV, and the iron core II (4-1) is embedded in the central recess IV. The embedded nylon plate I (1), nylon plate II (2), nylon plate III (3) and nylon plate IV (4) are connected together with bolts (6) in the set direction and sequence.

2. The planar reactor according to claim 1, characterized in that, The primary winding (3-1) is a spiral coil. There is a spiral groove in the middle recess III of the nylon plate III (3) for embedding the spiral coil of the primary winding. There are two outlets of the spiral coil. One is a notch opened on the edge of the pit in the middle recess III of the nylon plate III (3), and the other is a hole in the middle recess III of the nylon plate III (3) that penetrates the nylon plate III (3). There is a wire groove on the flat side of the nylon plate III (3) for the winding wire to be led out from the hole in the middle recess III of the nylon plate III (3) through the hole in the nylon plate III (3).

3. The planar reactor according to claim 1, characterized in that, The secondary winding (2-1) is a ring coil. There is a ring groove for embedding the ring coil in the middle recess II of the nylon plate II (2). The ring coil is embedded in the ring groove. The wire outlet on the nylon plate II (2) is two notches opened on the edge of the pit II in the middle of the nylon plate II (2). All the wires of the ring coil are led out in the two notches and then connected in parallel.

4. The planar reactor according to claim 1, characterized in that, The iron core I (1-1) embedded in the central recess I on nylon plate I (1) is matched with the secondary winding (2-1), and the iron core II (4-1) embedded in the central recess III on nylon plate III (3) is matched with the primary winding (3-1).

5. The planar reactor according to claim 1, characterized in that, The nylon plates I (1), II (2), III (3) and IV (4) are rectangular nylon plates. The primary winding (3-1) on the nylon plates I (1), II (2), III (3) and IV (4) is a rectangular loop coil, and the secondary winding (2-1) is a rectangular spiral coil.

6. The planar reactor according to claim 1, characterized in that, The conductors used to make the primary winding (3-1) and secondary winding (2-1) are Litz wires, and the materials of core I (1-1) and core II (4-1) are ferrites. Specifically, core I (1-1) embedded in the central recess I of nylon plate I (1) is ferrite, and core II (4-1) embedded in the central recess III of nylon plate III (3) is ferrite.

7. The planar reactor according to claim 6, characterized in that, The ferrites embedded in the central recess I of nylon plate I (1) and the central recess III of nylon plate III (3) are assembled from multiple small ferrites.

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