Radial iron core of intermediate-frequency reactor

Abstract

The utility model discloses a radial iron core of an intermediate frequency reactor. Comprising an iron core, a fixing rod piece is arranged in the middle of the iron core, the fixing rod piece comprises a screw rod, the upper portion of the fixing rod piece is arranged in an upper iron yoke in a penetrating mode, and the lower portion of the fixing rod piece is arranged in a lower iron yoke in a penetrating mode; the iron core comprises a plurality of silicon steel sheet columns radially arranged around the fixing rod piece, each silicon steel sheet column is formed by stacking a middle main silicon steel sheet and a plurality of secondary silicon steel sheets sequentially stacked in the width direction of the main silicon steel sheet, and the main silicon steel sheet and the secondary silicon steel sheets in the same silicon steel sheet column are the same in height and are aligned in a unilateral mode. The main silicon steel sheet and the secondary silicon steel sheet are provided with a plurality of through holes corresponding in position in the height direction, and a plurality of epoxy screws and a plurality of nylon nuts are arranged to be matched with the through holes to fix the main silicon steel sheet and the secondary silicon steel sheet. The utility model effectively reduces the magnetic resistance at the end part of the iron core and reduces the temperature rise of the iron core.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of intermediate frequency reactor, specifically relates to a radiating core of intermediate frequency reactor. BACKGROUND

[0002] The intermediate frequency reactor core has good electromagnetic performance and stability, can bear higher current and temperature, is suitable for being used in intermediate frequency power supply, industrial furnace and other equipment, and plays the role of impedance matching, improving power transmission efficiency and stability.

[0003] The core of the traditional intermediate frequency reactor is arranged in a straight line by a plurality of silicon steel sheets in an insulating tube, and the temperature rise is high in actual use, so it is urgent to reduce the temperature rise of the core in use to meet the use requirement. UTILITY MODEL CONTENT

[0004] The utility model aims at the deficiency of prior art, provides a kind of radiating core of intermediate frequency reactor to reduce the magnetic resistance of core end part and thereby reduce temperature rise.

[0005] To achieve the above object, the technical scheme adopted by the utility model is: a radiating core of intermediate frequency reactor, including core, the middle of core is equipped with fixed rod piece, fixed rod piece includes screw rod, the upper portion of fixed rod piece is simultaneously arranged in upper yoke, and the lower portion of fixed rod piece is simultaneously arranged in lower yoke;Core includes a plurality of silicon steel sheet columns arranged in a radiating manner around fixed rod piece, and gap is provided between two upper and lower adjacent silicon steel sheet columns, and insulating plate is provided between left and right adjacent silicon steel sheet columns;Silicon steel sheet column is stacked by main silicon steel sheet in the middle and a plurality of secondary silicon steel sheets sequentially stacked along the width direction of main silicon steel sheet, the height of main silicon steel sheet and secondary silicon steel sheet in the same silicon steel sheet column is same, main silicon steel sheet and secondary silicon steel sheet are aligned on one side, the length of secondary silicon steel sheet is ladder-shaped decreasing along the width direction of main silicon steel sheet, and main silicon steel sheet and secondary silicon steel sheet are provided with a plurality of through holes corresponding to a plurality of positions in height direction, a plurality of epoxy screw rods and a plurality of nylon nuts are arranged to cooperate with through hole to fix main silicon steel sheet and secondary silicon steel sheet.

[0006] Preferably, the gap is formed by disconnection treatment, and the disconnection treatment includes a circular table-shaped base screwed with the bottom of the screw rod, and the part of the bottom of the main silicon steel sheet and the secondary silicon steel sheet in contact with the base is chamfered and tightly fitted with the base by the chamfer.

[0007] Preferably, an insulating sleeve is arranged between the contact surface of the base and the main silicon steel sheet and the secondary silicon steel sheet.

[0008] Preferably, a transmission rod fixing seat is arranged in the middle of the base.

[0009] Preferably, the screw rod is covered with an insulating sleeve.

[0010] Preferably, an insulating tube is sleeved on the outer periphery of the silicon steel sheet column.

[0011] Compared with the prior art, the utility model has the advantages that the radiation silicon steel sheet column reduces the magnetic resistance of the core end, thereby reducing the heating of the core and reducing the temperature rise. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the sectional view of the utility model.

[0013] Figure 2 It is the plan view of the core in the utility model.

[0014] Figure 3 It is the plan view of the silicon steel sheet group in the utility model.

[0015] Figure 4 It is Figure 1 The enlarged view of A in the figure.

[0016] Wherein, 1 - core, 11 - silicon steel sheet column, 111 - main silicon steel sheet, 112 - secondary silicon steel sheet, 12 - nylon nut, 13 - epoxy screw, 2 - fixed rod piece, 21 - screw, 22 - insulating sleeve, 31 - upper iron yoke, 32 - lower iron yoke, 4 - insulating tube, 51 - base, 52 - insulating spacer sleeve, 53 - transmission rod fixed seat. DETAILED DESCRIPTION

[0017] The utility model is further illustrated in combination with the drawings and specific implementation manners, and it should be understood that these implementation manners are only used for illustrating the utility model and are not used for limiting the scope of the utility model, and after reading the utility model, the modification of various equivalent forms of the utility model by the person skilled in the art falls within the range defined by the claims of the application.

[0018] As Figures 1 to 2 The radiation core of the intermediate frequency reactor shown in the figure, including the core 1, the middle installation of the core 1 has the fixed rod piece 2, the fixed rod piece 2 includes the screw 21, the screw 21 is covered with the insulating sleeve 22, the upper part of the fixed rod piece 2 is simultaneously arranged in the upper iron yoke 31, and the lower part of the fixed rod piece 2 is simultaneously arranged in the lower iron yoke 32;The core 1 includes twenty-four radiation silicon steel sheet columns 11 around the fixed rod piece 2, and the silicon steel sheet column 11 is arranged in the same layer in twelve groups, and forms two layers, and the break gap is arranged between the two upper and lower adjacent silicon steel sheet columns 11, and the insulating plate is arranged between the left and right adjacent silicon steel sheet columns 11, and the insulating tube 4 is sleeved on the outer periphery of the silicon steel sheet column 11.

[0019] As Figure 3As shown in the drawings, the silicon steel sheet column 11 is stacked by the middle main silicon steel sheet 111 and the secondary silicon steel sheets 112 which are stacked along the width direction of the main silicon steel sheet 111, the height of the main silicon steel sheet 111 and the secondary silicon steel sheets 112 in the same silicon steel sheet column 11 is the same, the main silicon steel sheet 111 and the secondary silicon steel sheets 112 are aligned on one side, the length of the secondary silicon steel sheets 112 decreases in a stepped manner along the width direction of the main silicon steel sheet 111, the main silicon steel sheet 111 and the secondary silicon steel sheets 112 are provided with through holes corresponding to positions in the height direction, the main silicon steel sheet 111 and the secondary silicon steel sheets 112 of the upper silicon steel sheet column 11 are provided with five corresponding through holes, the main silicon steel sheet 111 and the secondary silicon steel sheets 112 of the lower silicon steel sheet column 11 are provided with three corresponding through holes, the epoxy screw rod 13 and the nylon nut 12 corresponding to the number of through holes are used to fix the main silicon steel sheet 111 and the secondary silicon steel sheets 112 through the through holes.

[0020] As shown in the drawings, Figure 4 As shown in the drawings, the gap is formed by the disconnection treatment, the disconnection treatment includes the circular table-shaped base 51 which is screwed with the bottom of the screw rod 21, the part of the bottom of the main silicon steel sheet 111 and the secondary silicon steel sheets 112 which is in contact with the base 51 is chamfered and tightly matched with the base 51 through the chamfering, the insulating sleeve 52 is arranged between the contact surface of the base 51 and the main silicon steel sheet 111 and the secondary silicon steel sheets 112, the middle of the base 51 is provided with the transmission rod fixing seat 53, the disconnection treatment is convenient for adjusting the position of the iron core 1 as a whole, changing the air gap to adjust the inductance.

[0021] The principle of the utility model is: the silicon steel sheets are arranged in a radial form, the cross-sectional area of the magnetic circuit is increased, thereby reducing the magnetic resistance of the iron core, reducing the heating of the iron core in the intermediate frequency reactor, thereby reducing the temperature rise.

[0022] The above description shows and describes the preferred embodiments of the utility model, as described above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified by the above teaching or related technology or knowledge within the scope of the utility model concept described herein. The modification and change made by the person skilled in the art without departing from the spirit and scope of the utility model should be within the protection scope of the claims of the utility model.

Claims

1. A radial core of an intermediate frequency reactor, characterized by: The application relates to a core, the middle of the core is provided with a fixing rod, the fixing rod comprises a screw rod, the upper part of the fixing rod is simultaneously arranged in an upper iron yoke, and the lower part of the fixing rod is simultaneously arranged in a lower iron yoke; the core comprises a plurality of silicon steel sheet columns which are arranged radially around the fixing rod, a gap is arranged between two adjacent silicon steel sheet columns, and an insulating plate is arranged between left and right adjacent silicon steel sheet columns; the silicon steel sheet column is composed of a main silicon steel sheet and a plurality of secondary silicon steel sheets which are sequentially stacked along the width direction of the main silicon steel sheet, the height of the main silicon steel sheet and the secondary silicon steel sheet in the same silicon steel sheet column is the same, the main silicon steel sheet and the secondary silicon steel sheet are aligned on one side, the length of the secondary silicon steel sheet is steppedly decreased along the width direction of the main silicon steel sheet, the main silicon steel sheet and the secondary silicon steel sheet are provided with a plurality of through holes corresponding to positions in the height direction, a plurality of epoxy screw rods and a plurality of nylon nuts are arranged to fix the main silicon steel sheet and the secondary silicon steel sheet through the through holes.

2. The radial core of a medium frequency reactor according to claim 1, characterized in that: The gap is formed by a breaking treatment, the breaking treatment comprises a circular table-shaped base which is screwed with the bottom of the screw rod, the bottom of the main silicon steel sheet and the secondary silicon steel sheet is chamfered and closely matched with the base.

3. The radial core of a medium frequency reactor according to claim 2, characterized in that: An insulating sleeve is arranged between the contact surface of the base and the main silicon steel sheet and the secondary silicon steel sheet.

4. The radial core of the intermediate frequency reactor according to claim 2, characterized in that: A transmission rod fixing base is arranged in the middle of the base.

5. The radial core of a medium frequency reactor according to claim 1, characterized in that: The screw rod is covered with an insulating sleeve.

6. The radial core of a medium frequency reactor according to claim 1, characterized in that: An insulating tube is arranged around the outer periphery of the silicon steel sheet column.

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