CN217405243U

CN217405243U - Low-noise iron core of medium-voltage series reactor

Info

Publication number: CN217405243U
Application number: CN202221099822.6U
Authority: CN
Inventors: 陈朝旭; 包仰仲
Original assignee: Shanghai Huapu Electric Co ltd
Current assignee: Shanghai Huapu Electric Co ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-09-09
Anticipated expiration: 2032-04-28

Abstract

The utility model relates to a middling pressure series reactor's low noise iron core belongs to electrical components's field, including the sleeve with wear to locate telescopic guide bar, the axis of guide bar and telescopic axis coincidence, the sleeve both ends are equipped with the end cover respectively, and the end cover passes through the detachable mode with the sleeve and is connected, and the guide bar passes the end cover, and the cover is equipped with a plurality of iron core posts on the guide bar, and is adjacent be equipped with the cover between the iron core post and establish spacer on the guide bar, iron core post and spacer all with guide bar sliding fit. This application has the effect that improves iron core packaging efficiency.

Description

Low-noise iron core of medium-voltage series reactor

Technical Field

The application relates to the field of electrical elements, in particular to a low-noise iron core of a medium-voltage series reactor.

Background

Reactors are widely used in power transmission and distribution systems to realize current-limiting protection, and are generally classified into air core reactors and iron core reactors, and spiral tubes of iron core reactors have higher inductance than air core reactors when in use.

At present, the iron core of iron core reactor is vertical orientation by a plurality of iron core posts and piles up and form in the sleeve usually, and iron core one end is connected with the upper yoke piece, and the iron core other end is connected with lower yoke piece, thereby at the last surface winding coil of iron core forms an iron core reactor, and in order to guarantee that the inductance is enough big, usually through reducing the distance of coil and sleeve interior iron core post surface, reaches the effect of guaranteeing the inductance size.

To above-mentioned correlation technique, the inventor thinks when the installation iron core post is in the sleeve, because the size of iron core post cross section is almost equal to the size of telescopic inner wall, the in-process of having led to the iron core post putting into the sleeve, if the position of iron core post has the skew slightly, the iron core post blocks easily on the sleeve, the staff can only take out the iron core post of being blocked on the sleeve, adjust the position of iron core post again, the repeated telescopic step of putting into the iron core post again for the packaging efficiency of iron core is not high.

SUMMERY OF THE UTILITY MODEL

In order to improve the efficiency of iron core equipment, this application provides a low noise iron core of middling pressure series reactor.

The application provides a low noise iron core of middling pressure series reactor adopts following technical scheme: including the sleeve with wear to locate telescopic guide bar, the guide bar axis coincides with telescopic axis, and the sleeve both ends are equipped with the end cover respectively, and the end cover passes through the detachable mode with the sleeve and is connected, and the guide bar passes the end cover, and the cover is equipped with a plurality of iron core posts on the guide bar, and is adjacent be equipped with the cover between the iron core post and establish spacer on the guide bar, iron core post and spacer all with guide bar sliding fit.

Through adopting above-mentioned technical scheme, when needs place the iron core post in the sleeve, take off the end cover of sleeve one end earlier, then lead just to the position of iron core post through the guide bar, then loop through the guide bar with iron core post and spacer and slide to the sleeve inside, guarantee to press from both sides between the adjacent iron core post and be equipped with the spacer, the guide bar has played the effect of leading just the position, reduced the iron core post because the position is inaccurate leads to the condition emergence of card on the sleeve, thereby improved the packaging efficiency of staff to the iron core.

Optionally, one end of the guide rod close to the upper yoke is provided with a first connecting portion for connecting the upper yoke, and the other end of the guide rod is provided with a second connecting portion for connecting the lower yoke.

Through adopting above-mentioned technical scheme, the upper yoke spare passes through first connecting portion and guide bar fixed connection, and lower yoke spare passes through second connecting portion and guide bar fixed connection, and upper yoke spare and lower yoke spare play limiting displacement to the guide bar.

Optionally, the outer wall of the core limb is uniformly provided with a plurality of open grooves having the same extension direction as the length direction of the core limb.

Through adopting above-mentioned technical scheme, the open slot makes things convenient for the staff follow-up pouring epoxy into the sleeve, utilizes epoxy to reduce because the vibration that electromagnetic induction produced between the iron core post, the effect of noise decibel is reduced.

Optionally, the cross section of the guide bar perpendicular to the axis is a regular polygon.

Through adopting above-mentioned technical scheme, the cross section of the perpendicular to axis of guide bar is regular polygon can avoid the iron core post to take place to rotate around the guide bar axis at the gliding in-process to influence the normal use of iron core.

Optionally, a sealing gasket for sealing the joint is arranged at the joint of the end cover and the sleeve.

Through adopting above-mentioned technical scheme, sealed the pad and be used for preventing to pour into the epoxy in the sleeve still for solidifying the time from end cover and telescopic junction reveal, lead to epoxy's noise reduction effect to receive the influence.

Optionally, two one side that the end cover is close to the iron core post is equipped with the cushion, cushion one side and iron core post butt, cushion another side and end cover fixed connection.

Through adopting above-mentioned technical scheme, the cushion plays the guard action to the one side that the end cover is close to the iron core post, prevents that the iron core post from causing the damage to the tip surface.

Optionally, a plurality of heat dissipation holes are uniformly arranged on the surface of the end cover.

Through adopting above-mentioned technical scheme, the louvre is used for helping the heat dissipation of iron core post, prevents that the high temperature from resulting in the iron core post to damage, makes the iron core post can have longer live time.

Optionally, a plurality of overflow stopping grooves are uniformly arranged on the inner side of the sleeve, and the extending direction of the overflow stopping grooves is consistent with the length direction of the sleeve.

Through adopting above-mentioned technical scheme, increased sleeve and epoxy's area of contact, prevent that epoxy from overflowing when filling, reduced unnecessary waste.

In summary, the present application includes at least one of the following beneficial technical effects:

the guide rod is arranged in the sleeve for placing the iron core column, so that the iron core column is guided, and the effect of improving the working efficiency of assembling the iron core by workers is achieved;

the temperature generated by the iron core column during working is cooled in an auxiliary manner through the plurality of heat dissipation holes in the end cover, so that the condition that the iron core column is damaged due to high temperature is reduced, and the effect of prolonging the service life of the iron core column is achieved;

drawings

FIG. 1 is a schematic diagram of a low noise core of a medium voltage series reactor according to an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;

FIG. 3 is an enlarged schematic view of B in FIG. 2;

fig. 4 is a front view of the core of fig. 1;

fig. 5 is a schematic cross-sectional view of C-C in fig. 4.

Description of reference numerals: 1. a sleeve; 2. a guide rod; 3. an end cap; 4. an upper yoke; 5. a lower yoke; 6. a core limb; 7. a spacer; 8. a first connection portion; 9. a second connecting portion; 10. an open slot; 11. a gasket; 12. a soft cushion; 13. heat dissipation holes; 14. an overflow-preventing groove.

Detailed Description

The present application will be described in further detail with reference to fig. 1 to 5, and embodiments of the present application disclose a low noise core for a medium voltage series reactor.

Referring to fig. 1-2, a plurality of iron cores are vertically fixed between an upper yoke 4 and a lower yoke 5 which are parallel to each other, a coil is wound outside each iron core, each iron core comprises a sleeve 1 and a guide rod 2 penetrating through the sleeve 1, two end covers 3 are respectively arranged at two ends of the sleeve 1, and the two end covers 3 are connected with the sleeve 1 in a clamping manner.

Two end covers 3 all overlap and establish on guide bar 2 and two end covers 3 all can slide on guide bar 2, and the part that guide bar 2 is located between two end covers 3 still overlaps and is equipped with a plurality of iron core post 6 and a plurality of spacer 7, and the 6 materials of iron core post are the same with the 2 materials of guide bar, and iron core post 6 is formed after certain height is superimposed by the multi-disc silicon steel sheet.

Iron core post 6 and spacer 7 all can slide along the length direction of guide bar 2, press from both sides between the adjacent iron core post 6 and be equipped with spacer 7, spacer 7 makes and is formed with the air gap between two adjacent iron core posts 6, prevents the phenomenon of magnetic saturation from appearing when the heavy current to influence the normal use of iron core function.

Be equipped with first connecting portion 8 and second connecting portion 9 respectively at the both ends of guide bar 2, first connecting portion 8 is through the mode of pegging graft and upper yoke piece 4 fixed connection, second connecting portion 9 is through the mode of pegging graft and yoke piece 5 fixed connection down, after the iron core equipment is accomplished, scribble the adhesive cement respectively on first connecting portion 8 and second connecting portion 9, then let first connecting portion 8 be connected with upper yoke piece 4, second connecting portion 9 is connected with lower yoke piece 5, wait that the adhesive cement can accomplish the fixed connection between guide bar 2 and upper yoke piece 4 and the lower yoke piece 5 after solidifying.

Referring to fig. 3-5, a plurality of opening grooves 10 are uniformly formed in the outer wall of the core limb 6, the extending direction of each opening groove 10 is the same as the length direction of the core limb 6, overflow-preventing grooves 14 corresponding to the opening grooves 10 are formed in the inner wall of the sleeve 1, holes are formed between the overflow-preventing grooves 14 and the opening grooves 10, when all the core limbs 6 are placed inside the sleeve 1 under the guiding effect of the guide rods 2, epoxy resin is infused into the sleeve 1 through the holes formed between the overflow-preventing grooves 14 and the opening grooves 10 by workers, the epoxy resin can be used for reducing vibration between the core limbs 6, and therefore the noise reduction effect is achieved, the contact area between the inner wall of the sleeve 1 and the epoxy resin is increased through the overflow-preventing groove 14, the epoxy resin is prevented from overflowing during pouring, unnecessary waste is avoided, and the material saving effect is achieved to a certain extent.

The cross-section of 2 perpendicular to axes of guide bar is regular polygon, for example regular hexagon, makes iron core post 6 when gliding down on guide bar 2 like this, and iron core post 6 can not rotate around the axis of guide bar 2 for the open slot homoenergetic of a plurality of iron core posts 6 corresponds on same root straight line, and can not take place the skew, thereby causes the influence to the normal function that is located iron core post 6 in sleeve 1.

One side fixedly connected with cushion 12 that is close to iron core post 6 at end cover 3, cushion 12 comprises the flexible material that has elasticity, and cushion 12 plays the guard action to end cover 3, prevents that iron core post 6 from causing the damage to the surface of end cover 3, has guaranteed the normal life of end cover 3.

The end cover 3 is uniformly provided with heat dissipation holes 13, the heat dissipation holes 13 are used for reducing the heat of the iron core column 6 in the sleeve 1, the iron core column 6 is prevented from being damaged due to overhigh temperature, and the service life of the iron core column 6 is prolonged; in addition, the end cover 3 is connected with the sleeve 1 in an inserting mode, a sealing gasket 11 is arranged at the joint 1 of the sleeve 1 and the end cover 3, and epoxy resin poured into the sleeve 1 is prevented from seeping out from the joint of the sleeve 1 and the end cover 3 before being solidified, so that the whole noise reduction effect is prevented from being influenced.

The implementation principle of the low noise iron core of the medium voltage series reactor in the embodiment of the application is as follows: firstly, the end cover 3 seals one end of the sleeve 1, then the guide rod 2 is inserted, the second connecting part 9 extends out of the end cover 3, then the iron core column 6 and the spacer 7 sequentially slide into the sleeve 1 from the end of the guide rod 2 provided with the first connecting part 8, because the axis of the guide rod 2 is superposed with the axis of the sleeve 1, under the assistance of the guide rod 2, a worker does not need to perform centering work when the sliding iron core column 6 enters the sleeve 1, the efficiency of assembling the iron core by the worker is improved, after the work of placing the iron core column 6 in the sleeve 1 is completed, epoxy resin for reducing noise is poured into the sleeve 1, after the epoxy resin is completely solidified, the other end cover 3 can be assembled after the unclosed end of the guide rod 2 provided with the first connecting part 8 seals the end of the sleeve 1, then adhesive glue is coated on the second connecting part 9, and then the second connecting part 9 is inserted on the lower yoke 5, then the first connecting part 8 is coated with adhesive, then the first connecting part 8 is inserted on the upper yoke 4, and after the adhesive is solidified, the installation of the battery cell between the upper yoke 4 and the lower yoke 5 can be completed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A low noise iron core of medium voltage series reactor which characterized in that: including sleeve (1) and wearing to locate guide bar (2) of sleeve (1), the axis of guide bar (2) with the axis coincidence of sleeve (1), sleeve (1) both ends are equipped with end cover (3) respectively, end cover (3) with sleeve (1) is connected through the detachable mode, guide bar (2) are passed end cover (3), the cover is equipped with a plurality of iron core posts (6) on guide bar (2), and is adjacent be equipped with the cover between iron core post (6) and establish spacer (7) on guide bar (2), iron core post (6) with spacer (7) all with guide bar (2) sliding fit.

2. A low-noise core for a medium-voltage series reactor according to claim 1, characterized in that: guide bar (2) one end is equipped with and is used for connecting first connecting portion (8) of connecting yoke spare (4), guide bar (2) other end is equipped with second connecting portion (9) that are used for connecting yoke spare (5) down.

3. The low noise core of a medium voltage series reactor according to claim 2, characterized in that: the outer wall of the iron core column (6) is uniformly provided with a plurality of opening grooves (10) with the extending directions consistent with the length direction of the iron core column (6).

4. A low noise core for a medium voltage series reactor as defined in claim 3, characterized in that: the section of the guide rod (2) perpendicular to the axis is a regular polygon.

5. A low-noise core for a medium-voltage series reactor according to claim 1, characterized in that: and a sealing gasket (11) for sealing a gap at the joint is arranged at the joint of the end cover (3) and the sleeve (1).

6. A low noise core for a medium voltage series reactor as defined in claim 5, wherein: two end cover (3) are close to the one side of iron core post (6) all is equipped with cushion (12), cushion (12) one side with iron core post (6) butt, cushion (12) another side with end cover (3) fixed connection.

7. A low-noise core for a medium-voltage series reactor according to claim 6, characterized in that: the surface of the end cover (3) is provided with a plurality of heat dissipation holes (13) which are distributed around the axis circumference of the sleeve (1).

8. A low noise core for a medium voltage series reactor as defined in claim 3, wherein: the inner wall of the sleeve (1) is uniformly provided with a plurality of overflow stopping grooves (14), and the extending direction of the overflow stopping grooves (14) is consistent with the length direction of the sleeve (1).