CN204066969U - A kind of pillar is vertical around structure smoothing reactor - Google Patents

Abstract

The utility model discloses a kind of pillar vertical around structure smoothing reactor, relate to reactor technical field, comprise reactor framework, the iron core be fixed on reactor framework, the coiling framework being socketed on outer wall unshakable in one's determination, the copper strap wire be around on described coiling framework, the lead terminal that is connected with described copper strap wire; The rectangular silicon steel disc group that described iron core is M by multiple thickness forms, the silicon steel sheet that each silicon steel sheet group is 0.35mm by N number of thickness is formed by stacking, wherein, N be not less than 2 natural number, the silicon steel sheet group width being positioned at outside is less than the inner side silicon steel sheet group width be adjacent, namely unshakable in one's determination maximum in center width, subsequently to the diminishing symmetrical hierarchic structure in both sides; The cross section of described copper strap wire is rectangle; The outside that the leptoprosopy of copper strap wire is wound in coiling framework forms multiple wire turn, and is fixed with the gap spacer block that insulating material makes between adjacent turns.By adopting technique scheme, the utility model has perfect heat-dissipating, feature that effect is high.

Description

A column type vertical winding structure smoothing reactor

technical field

The utility model relates to the technical field of reactors, in particular to a column type vertical winding structure smoothing reactor.

Background technique

The smoothing reactor is generally connected in series between the DC output terminal of each pole converter and the DC line, and is one of the important equipment of the high-voltage DC converter station. The smoothing reactor is used in the DC circuit after rectification. The pulse number of the rectifier circuit is always limited, and there are always ripples in the output rectified voltage. This ripple is often harmful and needs to be suppressed by smoothing reactors. The converter stations of direct current transmission are all equipped with smoothing reactors, so that the output direct current is close to the ideal direct current. In the electrical conduction of thyristors powered by DC, smoothing reactors are also indispensable.

In recent years, with the continuous increase of electrical equipment, when various electrical equipment is integrated into the grid, multiple harmonics and clutter that interfere with the grid will be generated to varying degrees. In order to eliminate multiple harmonics and clutter generated by various electrical appliances. Usually, capacitors plus resistors or capacitors plus reactors are used to suppress multiple harmonics and clutter. Capacitors and resistors have low power, while capacitors and reactors have high power, but the harmonic loss is large, and the smoothing reactor needs to be increased to suppress harmonics. Cause the electrical equipment manufacturing cost to increase and bulky.

At present, most of the traditional reactors are E-shaped iron cores or square-shaped iron cores, and copper flat wires are wound on the E-shaped iron cores or square-shaped iron cores. In order to ensure the convenience of winding, the wide surface of the traditional copper flat wires is in close contact with the iron core. At the same time, in order to prevent short circuit between turns, the flat copper wire is wrapped with insulating material. Therefore, through long-term practice, it is found that the reactor with this traditional structure has the defects of poor heat dissipation performance, low efficiency, and large volume.

Utility model content

The technical problem to be solved by the utility model is to provide a column-type vertical winding structure smoothing reactor with good heat dissipation performance and high efficiency.

The technical scheme that the utility model takes for solving the technical problem existing in the known technology is:

A column-type vertical winding structure smoothing reactor, comprising a reactor frame (4), an iron core (1) fixed on the reactor frame (4), and a winding frame (5) sleeved on the outer wall of the iron core (1) , the flat copper wire (2) wound on the winding frame (5), the lead terminal connected with the flat copper wire (2); it is characterized in that: the iron core (1) is composed of a plurality of thicknesses M Each silicon steel sheet group is composed of N silicon steel sheets with a thickness of 0.35mm, where N is a natural number not less than 2, and the width of the silicon steel sheet group located on the outside is smaller than that of the adjacent inner silicon steel sheet The width of the sheet group, that is, the iron core (1) has a symmetrical ladder structure with the largest center width and then gradually shrinks to both sides; the copper flat wire (2) is a bare wire with a rectangular cross section; the narrow copper flat wire (2) The surface is wound on the outer side of the winding frame (5) to form a plurality of wire turns, and gap spacers (3) made of insulating material are fixed between adjacent wire turns.

As a preferred technical solution, the utility model also adopts the following technical features:

The number of steps on each side of the symmetrical stepped structure is between 2-10.

The gap spacer (3) is bonded to the iron core (1).

The advantages and positive effects that the utility model has are:

1. Due to the use of multi-stage cylindrical iron cores, multiple ventilation channels parallel to the axis of the iron core (1) are formed between the winding frame (5) and the iron core (1), thus greatly improving the heat dissipation performance of the reactor .

2. Since the narrow side of the copper flat wire (2) is vertically wound on the outside of the winding frame (5), multiple turns are formed, and gap spacers (3) made of insulating materials are fixed between adjacent turns , that is, the copper flat wire (2) adopts a spaced vertical winding structure; because of the spaced winding, there is a certain gap between the turns; therefore, the heat dissipation effect is further effectively improved; at the same time, the width of the frame is fully utilized to maximize the efficiency.

Description of drawings

Fig. 1 is a structural diagram of the utility model;

Fig. 2 is the front view of the utility model;

Fig. 3 is the right view of the utility model;

Fig. 4 is a partial structural schematic diagram of the utility model, which is mainly used to show the structure of the iron core.

Among them: 1. Iron core; 2. Copper flat wire; 3. Gap spacer; 4. Reactor frame; 5. Winding frame.

Detailed ways

In order to further understand the utility model content, characteristics and effects of the present utility model, the following examples are given hereby, and detailed descriptions are as follows in conjunction with the accompanying drawings:

Please refer to Figures 1 to 4, a column-type vertical winding structure smoothing reactor, including a reactor frame 4, an iron core 1 fixed on the reactor frame 4, a winding frame 5 sleeved on the outer wall of the iron core 1, a winding The flat copper wire 2 on the winding frame 5 and the lead terminal connected to the flat copper wire 2; the winding frame 5 is generally made of an insulating material into a cylindrical structure; since the reactor frame 4 is a prior art , so its structure is not described in detail here; in order to improve the heat dissipation performance of the reactor and improve the efficacy of the reactor: please refer to Fig. 4, the iron core 1 in this preferred embodiment is composed of a plurality of rectangular silicon steel sheet groups whose thickness is M, Each silicon steel sheet group is composed of N silicon steel sheets with a thickness of 0.35mm, where N is a natural number not less than 2, and the width of the silicon steel sheet group located on the outside is smaller than that of the adjacent inner silicon steel sheet group, that is, the core 1 It is a symmetrical stepped structure with the largest width in the center and then gradually narrows to both sides; the cross-section of the copper flat wire 2 in this preferred embodiment is rectangular; in order to ensure heat dissipation, the copper flat wire 2 is a bare wire. Different from the traditional technology, this In the preferred embodiment, the narrow side of the copper flat wire 2 is vertically wound on the outside of the winding frame 5 to form a plurality of turns. In order to prevent short circuits between adjacent turns, this preferred embodiment is fixed with The gap spacer 3 made of insulating material; in order to ensure the firmness of the gap spacer 3, it is preferable to bond the gap spacer (3) and the iron core (1).

Through multiple experiments, it is concluded that the number of steps on each side of the symmetrical ladder structure is preferably between 2-10, the inductance can be between 0.1-1.2mH, and the efficiency of the reactor can be increased by 40-60%.

The embodiments of the present utility model have been described in detail above, but the content described is only a preferred embodiment of the present utility model, and cannot be considered as limiting the implementation scope of the present utility model. All equal changes and improvements made according to the application scope of the utility model should still belong to the scope covered by the patent of the utility model.

Claims (3)

1. A column-type vertical winding structure smoothing reactor, comprising a reactor frame (4), an iron core (1) fixed on the reactor frame (4), a winding frame sleeved on the outer wall of the iron core (1) ( 5), the flat copper wire (2) wound on the winding frame (5), and the lead terminal connected to the flat copper wire (2); it is characterized in that: the iron core (1) is composed of multiple thicknesses It is composed of M rectangular silicon steel sheet groups, each silicon steel sheet group is composed of N silicon steel sheets with a thickness of 0.35mm, where N is a natural number not less than 2, and the width of the silicon steel sheet group located on the outside is smaller than that The width of the inner silicon steel sheet group, that is, the iron core (1) has a symmetrical ladder structure with the largest center width and then gradually shrinks to both sides; the copper flat wire (2) is a bare wire with a rectangular cross section; the copper flat wire (2) The narrow surface of the coil is wound on the outside of the winding frame (5) to form a plurality of turns, and gap spacers (3) made of insulating materials are fixed between adjacent turns. 2. The smoothing reactor with column type vertical winding structure according to claim 1, characterized in that: the number of steps on each side of the symmetrical ladder structure is between 2-10. 3. The smoothing reactor with column type vertical winding structure according to claim 2, characterized in that: the gap spacer (3) is bonded to the iron core (1).