CN214254099U

CN214254099U - Overload protection transformer

Info

Publication number: CN214254099U
Application number: CN202120396890.8U
Authority: CN
Inventors: 张同钰
Original assignee: Henan Jinyu Electric Co ltd
Current assignee: Henan Jinyu Electric Co ltd
Priority date: 2021-02-23
Filing date: 2021-02-23
Publication date: 2021-09-21
Anticipated expiration: 2031-02-23

Abstract

The utility model provides an overload protection transformer, including a plurality of insulated columns, all be equipped with fixed subassembly on a plurality of insulated columns, fixed subassembly is including installing the end cover on the insulated column, one side of end cover is rotated and is installed the pivot, be fixed with the connecting rod in the pivot, the one of insulated column is kept away from to the connecting rod serves and is fixed with the retainer plate, screw-thread fit has the screw rod on the retainer plate, the axis of screw rod is served with the axis of retainer plate is perpendicular to be set up and the retainer plate is kept away from to the screw rod and is served and be fixed with the commentaries on classics handle, the one of handle is served and is fixed with the clamp plate to the screw rod is kept away from, be equipped with the fusion tube between two insulated columns, the both ends of fusion tube are located the retainer plate on two insulated columns respectively. The condition of generating the antithetical couplet electricity between two insulated columns is avoided, the security when having improved the transformer and using, the life that can also improve the transformer simultaneously.

Description

Overload protection transformer

Technical Field

The utility model relates to a transformer equipment technical field especially relates to an overload protection transformer.

Background

An electronic transformer, which is an electronic device for converting alternating voltage of commercial power into direct current and then forming a high-frequency alternating voltage output by a semiconductor switching device, an electronic element and a high-frequency transformer winding, is also an alternating current-direct current-alternating current inverter circuit taught in the theory of electronics. In brief, it is mainly composed of a high-frequency transformer core (iron core) and two or more coils, which do not change their positions, and are converted into alternating voltage and current from one or more electric loops by means of electromagnetic induction through alternating current power. At the output end of the high-frequency transformer, high-frequency alternating current or direct current of different voltage levels is supplied to one or more than two circuit utilization circuits. The transformer in use all can have the electric current too big, cause the damage of transformer, current transformer all has overload protection device, the most overload protection device that adopts at present is the fusion tube mostly, overload and produce high temperature, make the fusion tube fuse, thereby play the effect of cutout, but the interval between two contact points of current overload protection structure is shorter, and the length of fusion tube should not the overlength, thereby lead to the circumstances that probably appears the antithetical couplet electricity behind the fusion tube, continue to produce the harm to the use of transformer.

SUMMERY OF THE UTILITY MODEL

To the circumstances, for overcoming prior art's defect, the utility model aims at providing an overload protection transformer, can improve the overload protection effect of transformer, avoid producing the tie point and ally oneself with the electric condition, improve the life of transformer.

Its solution is, an overload protection transformer, including a plurality of insulated columns, all be equipped with fixed subassembly on a plurality of insulated columns, fixed subassembly is including installing the end cover on the insulated column, one side of end cover is rotated and is installed the pivot, be fixed with the connecting rod in the pivot, the insulating column was kept away from to the connecting rod serves and is fixed with the retainer plate, the screw-thread fit has the screw rod on the retainer plate, the axis of screw rod sets up perpendicularly with the axis of retainer plate and the screw rod is kept away from serving of retainer plate and is fixed with the commentaries on classics handle, the screw rod is kept away from serving of commentaries on classics handle and is fixed with the clamp plate, be equipped with the fusion tube between two insulated columns, the both ends of fusion tube are located the retainer plate on two insulated.

Preferably, the pressure plate is in a circular arc shape with an opening deviating from the screw rod.

Preferably, a rubber pad is fixed on one surface of the pressing plate opposite to the fixed ring.

Preferably, a shielding cover is fixed on the end cover, and the rotating shaft is located inside the shielding cover.

Preferably, the rotating shaft is provided with a torsion spring for driving the connecting rod to rotate downwards.

Preferably, the end cover is internally and rotatably provided with a supporting rod, one end of the supporting rod is fixed with a movable stop block, one end of the supporting rod, far away from the movable stop block, is fixed with a push rod extending out of the end cover, and one end, close to the end cover, of the insulating column is fixed with a fixed stop block.

Preferably, the fixed stopper and the movable stopper are both provided with inclined surfaces.

Preferably, the push rod is sleeved with a spring, and the spring is positioned outside the end cover.

The utility model has the advantages that: the installation efficiency of transformer can be improved, operator's intensity of labour is reduced, the condition of producing the antithetical couplet electricity between two insulated columns is avoided, security when having improved the transformer and using, the life that can also improve the transformer simultaneously.

Drawings

Fig. 1 is a schematic structural view of the whole front of the present invention.

Fig. 2 is a schematic structural view of the front side of the fixing ring of the present invention.

Fig. 3 is an enlarged schematic structural view of the end cap of the present invention.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

Given by figure 1, figure 2 and figure 3, an overload protection transformer, includes a plurality of insulation posts 1, its characterized in that, all be equipped with fixed subassembly on a plurality of insulation posts 1, fixed subassembly is including installing end cover 2 on insulation post 1, one side of end cover 2 is rotated and is installed pivot 17, be fixed with connecting rod 3 in the pivot 17, connecting rod 3 is kept away from one of insulation post 1 and is served and be fixed with retainer plate 4, screw-thread fit has screw rod 6 on the retainer plate 4, the axis of screw rod 6 sets up perpendicularly with the axis of retainer plate 4 and one of retainer plate 4 is served and is fixed with commentaries on classics handle 15 to screw rod 6, screw rod 6 keeps away from to serve and is fixed with clamp plate 14 to the one of commentaries on classics handle 15, be equipped with fusion tube 5 between two insulation posts 1, fusion tube 5's both ends are located retainer plate 4 on two insulation posts 1 respectively.

When the device is used, the device is firstly placed at a position needing to work, the connecting rods 3 are connected with the corresponding insulating columns 1, the fusion tubes 5 are placed inside the fixing ring 4, then the rotating handle 15 is rotated to enable the screw rods 6 to move up and down, so that the pressing plates 14 can be driven to move, and further the fusion tubes 5 are fixed, in the using process, when a transformer is overloaded, the fusion tubes 5 are fused due to the generated high temperature, the fusion tubes 5 are broken and separated, the separation of the two connecting rods 3 is realized, after the fusion tubes 5 are disconnected, the two connecting rods 3 fall naturally under the action of no connection of the fusion tubes 5, so that the two connecting points are kept away, the condition of power connection is avoided, the safety and the service life of the transformer in use are further improved,

the pressing plate 14 is arc-shaped with an opening deviating from the screw 6.

In order to improve the fixing effect on the fusion tube 5, the pressing plate 14 is formed in an arc shape, so that the contact area can be increased, and the fixing effect on the fusion tube 5 can be improved.

A rubber pad 16 is fixed on one surface of the pressure plate 14 opposite to the fixed ring 4.

Through setting up rubber pad 16, not only can improve the fixed effect to fusion tube 5, can also avoid producing harm, further improvement device's result of use to fusion tube 5.

A shielding cover 8 is fixed on the end cover 2, and the rotating shaft 17 is located inside the shielding cover 8.

The transformer is generally applied outdoors, so as to avoid the situation that the transformer cannot normally fall down under the condition that the rotating shaft 17 is rusted. Shelter from lid 8 through the setting, can shelter from countershaft 17 to reduce the influence of rainwater to countershaft 17, further improve the result of use and the stability of device.

And a torsion spring 13 for driving the connecting rod 3 to rotate downwards is arranged on the rotating shaft 17.

Through setting up torsional spring 13, can make torsional spring 13 promote connecting rod 3 and rotate to avoid the connecting rod unable timely pivoted condition to appear, further improvement device's result of use.

The end cover 2 is internally and rotatably provided with a support rod 9, one end of the support rod 9 is fixed with a movable stop block 12, one end of the support rod 9 far away from the movable stop block 12 is fixed with a push rod 11 extending out of the end cover 2, and one end of the insulating column 1 close to the end cover 2 is fixed with a fixed stop block.

In order to improve the fixed efficiency to end cover 2, remove dog 12 through setting up, can cooperate with fixed dog at a plurality of removal dogs 12 during the use, realize the quick fixed to end cover 2, improved the efficiency when the device is installed, reduced operating personnel's intensity of labour, promote push rod 11 during the dismantlement to break away from between realization removal dog 12 and the fixed dog, realized quick dismantlement.

Inclined surfaces are arranged on the fixed stop block and the movable stop block 12.

By arranging the inclined plane, the fixed stop block can be more smoothly matched with the movable stop block 12, and the using effect of the device is further improved.

The push rod 11 is sleeved with a spring 10, and the spring 10 is positioned outside the end cover 2.

Through setting up spring 10, during the use, can promote removal dog 12 and remove to the direction of fixed dog to the realization is to the fixed of end cover 2, further improvement device's result of use.

The above-mentioned embodiments are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design concept of the present invention should be included in the protection scope defined by the claims of the present invention.

Claims

1. The overload protection transformer comprises a plurality of insulating columns (1) and is characterized in that fixing components are arranged on the insulating columns (1) and comprise end covers (2) installed on the insulating columns (1), a rotating shaft (17) is installed on one side of each end cover (2) in a rotating mode, a connecting rod (3) is fixed on each rotating shaft (17), a fixing ring (4) is fixed on one end, away from the insulating columns (1), of each connecting rod (3), a screw rod (6) is arranged on each fixing ring (4) in a threaded matching mode, a rotating handle (15) is fixed on one end, away from the fixing ring (4), of each screw rod (6) and the axis of each fixing ring (4) are perpendicular to each other, a pressing plate (14) is fixed on one end, away from the rotating handle (15), of each screw rod (6), a fusion tube (5) is arranged between the two insulating columns (1), and two ends of the fusion tube (5) are respectively positioned in the fixing rings (4) on the two insulating columns (1).

2. Overload protection transformer according to claim 1, characterised in that the pressure plate (14) is arc-shaped with an opening facing away from the screw (6).

3. An overload protection transformer according to claim 1, characterised in that a rubber pad (16) is fixed to the pressure plate (14) on the side opposite to the fixed ring (4).

4. An overload protection transformer according to claim 1, characterised in that a shielding cover (8) is fixed to the end cap (2), and the shaft (17) is located inside the shielding cover (8).

5. An overload protection transformer according to claim 1, characterised in that the shaft (17) carries a torsion spring (13) which drives the connecting rod (3) downwards.

6. The overload protection transformer according to claim 1, wherein a support rod (9) is rotatably mounted inside the end cap (2), a movable stopper (12) is fixed at one end of the support rod (9), a push rod (11) extending out of the end cap (2) is fixed at one end of the support rod (9) far away from the movable stopper (12), and a fixed stopper is fixed at one end of the insulating column (1) close to the end cap (2).

7. Overload protection transformer according to claim 6, characterised in that the fixed stops and the moving stops (12) are provided with inclined surfaces.

8. The overload protection transformer according to claim 6, wherein the push rod (11) is sleeved with the spring (10) and the spring (10) is located outside the end cover (2).