CN213042774U

CN213042774U - High-strength heat dissipation type oil immersed transformer iron core

Info

Publication number: CN213042774U
Application number: CN202022568719.9U
Authority: CN
Inventors: 樊朋亮
Original assignee: Shijiazhuang Xukun Electrical Equipment Co ltd
Current assignee: Shijiazhuang Xukun Electrical Equipment Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-04-23
Anticipated expiration: 2030-11-10

Abstract

The utility model relates to a transformer core technical field especially relates to a high strength heat dissipation type oil immersed transformer iron core. The transformer iron core locking device comprises a locking belt, a locking ring, a screw sleeve and a lead screw, wherein the locking belt is arranged on one side of a vertical yoke column, the two ends of the locking belt are respectively provided with the lead screw, the locking ring is in threaded connection with a height locking screw, one side of the locking ring is in pin shaft connection with the locking ring, the other end of the locking ring is fixedly provided with the screw sleeve, the lead screw is arranged on the screw sleeve, the locking belt is tensioned on the vertical yoke columns on the two sides under the action of the screw sleeve, the locking ring and the lead screw, the middle of the vertical yoke columns on the two sides is tensioned; the hard parting strips divide the insulating paper tube and the vertical yoke columns into a plurality of oil transmission holes, insulating oil in the oil tank can flow through the oil transmission holes in the coil windings, and the heat dissipation effect of the transformer iron core is good.

Description

High-strength heat dissipation type oil immersed transformer iron core

Technical Field

The utility model relates to a transformer core technical field especially relates to a high strength heat dissipation type oil immersed transformer iron core.

Background

The transformer clamping piece is a fastening device for clamping and fixing a transformer iron core, mainly comprises an upper clamping piece, a lower clamping piece and a locking screw rod, and achieves the fixing purpose by clamping two sides of an upper iron yoke and a lower iron yoke of a transformer. However, the existing clamping piece can only be fixed in the width direction and the height direction of the transformer iron core, and has no fixing structure in the horizontal direction, so that after long-term use or shaking, the upright yoke columns at two sides of the transformer iron core are easy to loosen, and the magnetic conduction effect of the iron core is seriously influenced; when the iron core equipment, can place insulating fiber container between the outside of upright yoke post and the coil winding, insulating fiber container is attached on the upright yoke post very easily when receiving external pressure, does not have the space between insulating fiber container and the upright yoke post, and the conduction oil in the oil tank can't reach the inside iron core of coil, and the radiating effect of iron core is poor.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to the technical insufficiency that exists, provide a high strength heat dissipation type oil immersed transformer iron core, include the lock area sets up in upright yoke post one side, lock area both ends all are provided with the lead screw, hasp threaded connection is on high locking screw, hasp one side round pin axle connection has the catch, the catch other end is fixed to be provided with the silk braid, the lead screw sets up on the silk braid, through silk braid, catch and lead screw effect with the catch tensioning on the upright yoke post of both sides, for the pulling force in the middle part of the upright yoke post of both sides, the upright yoke post of both sides is fixed to middle part locking in the horizontal direction, the transformer iron core is fixed more firmly; the hard parting strips divide the insulating paper tube and the vertical yoke columns into a plurality of oil transmission holes, insulating oil in the oil tank can flow through the oil transmission holes in the coil windings, and the heat dissipation effect of the transformer iron core is good.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: including transformer core, the last folder of setting on transformer core, lower folder, width locking screw and high locking screw, transformer core is fixed through width locking screw locking on the width direction, and transformer core is fixed through high locking screw locking on the direction of height, its characterized in that: the left side and the right side of the transformer iron core are both provided with tensioning locking pieces; upright yoke columns are arranged on two sides of the transformer iron core; the upright yoke columns are locked and fixed to the middle of the transformer iron core through tensioning locking pieces in the horizontal direction; the vertical yoke column is provided with a coil winding; and an insulating paper tube is arranged between the coil winding and the vertical yoke column.

Further optimizing the technical scheme, a plurality of hard parting strips are arranged in the insulating paper tube; the hard parting strips are vertically arranged; the hard parting strips divide the space between the insulating paper tube and the upright yoke columns into a plurality of oil transmission holes.

Further optimizing the technical scheme, the tensioning lock piece comprises a lock belt and a lock catch; the locking belt is arranged on one side of the vertical yoke column; the two ends of the locking belt are provided with screw rods; the lock catch is in threaded connection with the height locking screw rod; a lock ring is connected to one side of the lock catch through a pin shaft; a thread sleeve is fixedly arranged at the other end of the lock ring; the lead screw is arranged on the lead screw sleeve.

Further optimizing the technical scheme, one side of the thread bushing is provided with a set screw; the screw sleeve and the screw rod are fixedly locked through a fastening screw.

Further optimize this technical scheme, the lock area with set up between the yoke post and have elastic insulating pad.

Compared with the prior art, the utility model has the advantages of it is following:

1. the locking belt is arranged on one side of the vertical yoke columns, lead screws are arranged at two ends of the locking belt, the lock catch is in threaded connection with the height locking screw, a lock ring is connected to one side of the lock catch through a pin shaft, a screw sleeve is fixedly arranged at the other end of the lock ring, the lead screws are arranged on the screw sleeve, the locking belt is tensioned on the vertical yoke columns on two sides under the action of the screw sleeve, the lock ring and the lead screws, the middle of the vertical yoke columns on two sides is tensioned through the tension force applied to the middle of the vertical yoke columns on two sides, the vertical yoke columns on two sides are locked and.

2. The hard parting strips divide the insulating paper tube and the vertical yoke columns into a plurality of oil transmission holes, insulating oil in the oil tank can flow through the oil transmission holes in the coil windings, and the heat dissipation effect of the transformer iron core is good.

3. And a set screw is arranged on one side of the screw sleeve, the screw sleeve and the screw rod are fixedly locked through the set screw, and the set screw can prevent the locking belt from loosening.

4. An elastic insulating pad is arranged between the lock belt and the vertical yoke column, and the silicon steel sheet can be prevented from being pulled by the lock belt due to the elastic insulating pad.

Drawings

Fig. 1 is a three-dimensional structure diagram of a high-strength heat dissipation type oil-immersed transformer core.

Fig. 2 is a schematic diagram of a tension lock mounting portion of a high-strength heat dissipation type oil immersed transformer core.

Fig. 3 is an enlarged view of a partial structure of a latch mounting portion of a high-strength heat dissipation type oil immersed transformer core.

Fig. 4 is a high-strength heat dissipation type oil immersed transformer core.

In the figure: 1. a transformer core; 101. a vertical yoke column; 2. an upper clamp; 3. a lower clamp; 4. a width locking screw; 5. a height locking screw; 6. tensioning the locking piece; 601. a locking band; 602. locking; 603. a screw rod; 604. a locking ring; 605. sleeving the silk; 606. tightening the screw; 7. a coil winding; 8. an insulating paper tube; 801. hard parting strips; 802. an oil transfer hole; 9. an elastic insulating pad.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The first embodiment is as follows: referring to fig. 1-4, a high-strength heat dissipation type oil immersed transformer core is characterized in that: including transformer core 1, set up last folder 2 on transformer core 1, lower folder 3, width locking screw 4 and high locking screw 5, transformer core 1 is fixed through width locking screw 4 locking on the width direction, and transformer core 1 is fixed through high locking screw 5 locking on the direction of height, its characterized in that: the left side and the right side of the transformer iron core 1 are both provided with tensioning locking pieces 6; the two sides of the transformer iron core 1 are provided with upright yoke columns 101; the upright yoke columns 101 are locked and fixed to the middle of the transformer iron core 1 through tensioning locking pieces 6 in the horizontal direction; the vertical yoke column 101 is provided with a coil winding 7; an insulating paper tube 8 is arranged between the coil winding 7 and the upright yoke column 101.

Preferably, a plurality of hard parting strips 801 are arranged inside the insulating paper tube 8; the hard division bars 801 are vertically arranged; the hard parting strips 801 divide the space between the insulating paper tube 8 and the upright yoke column 101 into a plurality of oil transmission holes 802

Preferably, the tension lock 6 comprises a lock band 601 and a lock catch 602; the locking band 601 is arranged on one side of the upright yoke column 101; the two ends of the locking band 601 are provided with screw rods 603; the lock 602 is in threaded connection with the height locking screw 5; a lock ring 604 is connected to one side of the lock 602 through a pin; a thread sleeve 605 is fixedly arranged at the other end of the locking ring 604; the lead screw 603 is arranged on a screw sleeve 605.

Preferably, a set screw 606 is arranged on one side of the thread sleeve 605; the screw sleeve 605 and the screw rod 603 are fixedly locked through a set screw 606.

Preferably, an elastic insulating pad 9 is arranged between the locking strip 601 and the upright yoke column 101.

The working principle is that as shown in fig. 1-4, after the lamination of the iron core is finished, the upper and lower yokes of the transformer iron core 1 are fixedly locked front and back by the upper clamping piece 2, the lower clamping piece 3 and the width locking screw rod 4, and the upper and lower yokes are fixedly locked up and down by the height locking screw rod 5; before the upper yoke is placed, two lock catches 602 are screwed into the height locking screw 5, and the two lock catches 602 are respectively positioned between the upper yoke and the lower yoke; placing a locking belt 601 at the left side of the leftmost upright yoke column 101, wherein the locking belt 601 corresponds to a lock 602 up and down, a lock ring 604 is connected to one side of the lock 602 through a pin shaft, a thread bushing 605 is fixedly arranged at the other end of the lock ring 604, the screw 603 is arranged on the thread bushing 605, the screw 603 at the two ends of the locking belt 601 is screwed into the thread bushing 605 of the lock ring 604 respectively, the locking belt 601 can be locked on the left upright yoke column 101 by rotating the thread bushing 605, and therefore the left upright yoke column 101 is tensioned towards the right side through the locking belt 601; the same applies when the locking band 601 is installed at the right side upright yoke column 101.

Because the elastic insulating pad 9 is arranged between the lock band 601 and the upright yoke column 101, the arrangement of the elastic insulating pad 9 can prevent the silicon steel sheet on the upright yoke column 101 from being damaged by pressure when the lock band 601 is tensioned; because the silicon steel sheets on the upright yoke column 101 are composed of a plurality of groups of specifications, the outer side surface of the upright yoke column 101 is not a plane, when the lock belt 601 presses the elastic insulating pad 9 on the upright yoke column 101, the elastic insulating pad 9 deforms, and therefore all the silicon steel sheets on the upright yoke column 101 can be guaranteed to be in a pressing state.

The upright yoke columns 101 on the two sides are locked and fixed towards the middle part in the horizontal direction, and the transformer iron core 1 is firmly fixed; a set screw 606 is arranged on one side of the screw sleeve 605, the screw sleeve 605 and the screw rod 603 are fixedly locked through the set screw 606, and the locking belt 601 can be placed to be loosened through the set screw 606.

After the transformer iron core 1 is locked, the upper clamping piece 2 is opened, then silicon steel sheets of an upper yoke are detached one by one, then accessories such as a coil winding 7 and the like are installed on the vertical yoke column 101, before the coil winding 7 is installed, the insulating paper cylinder 8 is installed and sleeved on the vertical yoke column 101, and a plurality of hard partition bars 801 are arranged inside the insulating paper cylinder 8; the hard parting strips 801 are vertically arranged, the hard parting strips 801 divide the space between the insulating paper cylinder 8 and the vertical yoke column 101 into a plurality of oil transmission holes 802, after the insulating paper cylinder 8 is sleeved with the hard parting strips 801, the oil delivery hole 802 between the insulating paper tube 8 and the upright yoke column 101 is in a vertically through state, when the transformer iron core 1 is put into the oil tank, the insulating oil in the oil tank flows to the oil transmission hole 802 on the surface of the iron core, the heat conduction oil passing through the oil transmission hole 802 directly radiates the surface of the transformer iron core 1, the heat radiation performance of the transformer iron core 1 is better, the problem that an insulating paper tube is placed between the outer part of the vertical yoke column and the coil winding of the existing transformer iron core is solved, when receiving external pressure, the insulating paper tube is easily attached to the upright yoke column, no gap exists between the insulating paper tube and the upright yoke column, heat conduction oil in the oil tank cannot reach the iron core inside the coil, and the heat dissipation effect of the iron core is poor.

The utility model discloses a control mode comes automatic control through the controller, and the control circuit of controller can realize through the simple programming of technical staff in this field, belongs to the common general knowledge in this field, and the utility model discloses mainly be used for protecting mechanical device, so the utility model discloses no longer explain control mode and circuit connection in detail.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The utility model provides an oily transformer core of high strength heat dissipation type, includes transformer core (1), sets up last folder (2) on transformer core (1), folder (3) down, width locking screw (4) and high locking screw (5), and it is fixed that transformer core (1) is locked through width locking screw (4) on the width direction, and it is fixed that transformer core (1) is locked through high locking screw (5) on the direction of height, its characterized in that: the left side and the right side of the transformer iron core (1) are both provided with tensioning locking pieces (6); upright yoke columns (101) are arranged on two sides of the transformer iron core (1); the vertical yoke column (101) is locked and fixed to the middle of the transformer iron core (1) through a tensioning locking piece (6) in the horizontal direction; a coil winding (7) is arranged on the vertical yoke column (101); an insulating paper tube (8) is arranged between the coil winding (7) and the vertical yoke column (101).

2. The high-strength heat-dissipation oil-immersed transformer iron core according to claim 1, characterized in that: a plurality of hard parting strips (801) are arranged in the insulating paper cylinder (8); the hard parting strips (801) are vertically arranged; the hard parting strips (801) divide the space between the insulating paper tube (8) and the vertical yoke column (101) into a plurality of oil transmission holes (802).

3. The high-strength heat-dissipation oil-immersed transformer iron core according to claim 1, characterized in that: the tensioning lock (6) comprises a lock belt (601) and a lock catch (602); the locking band (601) is arranged on one side of the vertical yoke column (101); the two ends of the locking belt (601) are provided with screw rods (603); the lock catch (602) is in threaded connection with the height locking screw rod (5); a lock ring (604) is connected to one side of the lock catch (602) through a pin shaft; a thread sleeve (605) is fixedly arranged at the other end of the locking ring (604); the screw rod (603) is arranged on the screw sleeve (605).

4. The high-strength heat-dissipation oil-immersed transformer iron core according to claim 3, wherein: a set screw (606) is arranged on one side of the thread sleeve (605); the screw sleeve (605) and the screw rod (603) are fixedly locked through a set screw (606).

5. The high-strength heat-dissipation oil-immersed transformer iron core according to claim 3, wherein: an elastic insulating pad (9) is arranged between the locking band (601) and the upright yoke column (101).