CN220085776U - Short-circuit current limiting protection device combining transformer and current-limiting magnetic core - Google Patents

Abstract

The utility model discloses a short-circuit current limiting protection device for a transformer and current limiting magnetic core combination, which belongs to the technical field of transformer protection and comprises a mounting seat, wherein a transformer combiner is lapped on the mounting seat, an L-shaped plate is connected onto the mounting seat, clamping plates are lapped on two sides of the transformer combiner, a limiting groove is formed in the L-shaped plate, one side of each clamping plate is connected with a limiting structure, and the limiting structures are slidably connected into the limiting grooves. This short-circuit current limiting protection device of transformer and current-limiting magnetic core combination through setting up limit structure, first heating panel and second heating panel, and this protection device passes through the cooperation between limit plate, spring, first heating panel and the second heating panel for the function of quick equipment can be realized in the mount pad to the vary voltage combiner, can in time handle when the inside emergence of the vary voltage combiner of combination damages, has avoided the phenomenon that the integral emergence short circuit of the vary voltage combiner of combination, has ensured the normal use of follow-up equipment.

Description

Short-circuit current limiting protection device combining transformer and current-limiting magnetic core

Technical Field

The utility model belongs to the technical field of transformer protection, and particularly relates to a short-circuit current limiting protection device for a transformer and current-limiting magnetic core combination.

Background

The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, the main components are a primary coil, a secondary coil and an iron core, the current-limiting magnetic core is a sintered magnetic metal oxide formed by various iron oxide mixtures, the surface or the inside of the transformer and the current-limiting magnetic core are protected by using a protection device after being combined, the current protection device is inconvenient for carrying out quick disassembly and assembly treatment on the combined transformer, and when the inside of the combined transformer is damaged, the combined transformer is difficult to process in time, so that the whole transformer is short-circuited, and the normal use of equipment is affected.

Disclosure of Invention

In order to overcome the defects, the utility model provides the short-circuit current limiting protection device for the combination of the transformer and the current limiting magnetic core, which solves the problems that the conventional protection device is inconvenient to rapidly disassemble and assemble the combined transformer, and is difficult to timely process when the inside of the combined transformer is damaged, so that the combined transformer is integrally short-circuited, and the normal use of equipment is affected.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a short-circuit current restriction protection device of transformer and current-limiting magnetic core combination, includes the mount pad, the overlap joint has the vary voltage combiner on the mount pad, be connected with L template on the mount pad, the both sides of vary voltage combiner all overlap joint has the cardboard, the spacing inslot has been seted up to the L template, one side of cardboard is connected with limit structure, limit structure sliding connection is in the spacing inslot, limit structure and L template sliding connection, be connected with the iron core on the vary voltage combiner, the overlap joint has first heating panel and second heating panel on the vary voltage combiner, first heating panel and second heating panel looks joint, seted up the auxiliary tank in the first heating panel, iron core sliding connection is in the auxiliary tank, limit structure includes the guide arm, guide arm sliding connection is in L template, the guide arm external connection has the spacing dish, spacing dish sliding connection is in the spacing inslot, the one end of guide arm is connected with the atress dish, the other end of guide arm is connected at the side of cardboard, the overcoat is equipped with the spring, the spacing dish passes through spring coupling in the spacing inslot.

As a further aspect of the utility model: a sliding groove is formed in the L-shaped plate, a sliding block is connected to the clamping plate, and the sliding block is slidably connected in the sliding groove.

As a further aspect of the utility model: the clamping groove is formed in the clamping plate, guide plates are arranged on two sides of the second radiating plate, and the guide plates are clamped in the clamping groove.

As a further aspect of the utility model: a groove is formed in the first heat dissipation plate, and a threaded hole is formed in the groove.

As a further aspect of the utility model: one side of the second heat radiation plate is connected with a protruding block, and a threaded rod is arranged in the protruding block.

As a further aspect of the utility model: the lug is clamped in the groove, and the lug is in threaded connection with the threaded hole through the threaded rod.

Compared with the prior art, the utility model has the beneficial effects that:

1. this short-circuit current limiting protection device of transformer and current-limiting magnetic core combination is through setting up L template, the cardboard, limit structure, first heating panel and second heating panel, drag the guide arm through the atress dish, the limiting dish can slide in the spacing inslot, and the spring can take place deformation along with the removal of limiting dish, loosen the atress dish when placing the mount pad corresponding installation position with the transformer combiner, the cardboard can reset through the effect of spring, the cardboard after reset then can overlap joint with transformer combiner's side, and first heating panel and second heating panel also can overlap joint in proper order in transformer combiner's top, this protection device passes through the limiting dish, the spring, cooperation between first heating panel and the second heating panel, make transformer combiner can realize fast assembly's function in the mount pad, can in time handle when the inside emergence of transformer combiner of combination damages, the phenomenon that the whole emergence of transformer combiner of combination is shorted is avoided, and the radiating effect when having improved transformer combiner and when moving, normal use of follow-up equipment has been ensured.

2. This short-circuit current limiting protection device of transformer and current-limiting magnetic core combination through setting up lug, recess and threaded rod, when first heating panel and second heating panel are assembled, the terminal lug of second heating panel then can the joint in the recess, and the lug carries out threaded connection through threaded rod and screw hole to improved the stability after first heating panel and second heating panel are fixed, avoided first heating panel and second heating panel emergence phenomenon that drops when receiving external force striking.

3. This short-circuit current limiting protection device of transformer and current-limiting magnetic core combination through setting up spout and slider, when the cardboard is receiving pulling force or thrust, the slider of iron core top then can slide in the spout for the motion between spout and the slider can play certain guide effect to the cardboard, has avoided the phenomenon that the cardboard takes place the dislocation when removing.

Drawings

FIG. 1 is a schematic view of a three-dimensional structure of the present utility model;

FIG. 2 is a schematic view of a three-dimensional cross-sectional structure of an L-shaped plate according to the present utility model;

FIG. 3 is a schematic diagram of a transformer combiner according to the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3A according to the present utility model;

in the figure: 1. a mounting base; 2. an L-shaped plate; 3. a voltage transformation combiner; 4. a clamping plate; 5. a limit structure; 501. a guide rod; 502. a limiting disc; 503. a spring; 504. a force-bearing plate; 6. a first heat dissipation plate; 7. a second heat dissipation plate; 8. a bump; 9. a threaded hole; 10. a groove; 11. a threaded rod; 12. a chute; 13. a slide block; 14. an iron core; 15. a limit groove; 16. an auxiliary groove; 17. a clamping groove; 18. and a guide plate.

Detailed Description

The technical scheme of the patent is further described in detail below with reference to the specific embodiments.

As shown in fig. 1-4, the utility model provides the technical scheme that: the short-circuit current limiting protection device for the transformer and current limiting magnetic core combination comprises a mounting seat 1, wherein a transformer combiner 3 is lapped on the mounting seat 1, an L-shaped plate 2 is connected to the mounting seat 1, clamping plates 4 are lapped on two sides of the transformer combiner 3, a sliding groove 12 is formed in the L-shaped plate 2, a sliding block 13 is connected to the clamping plates 4, the sliding block 13 is slidably connected in the sliding groove 12, when the clamping plates 4 are subjected to tensile force or thrust force, the sliding block 13 above an iron core 14 slides in the sliding groove 12 through the sliding groove 12, so that the movement between the sliding groove 12 and the sliding block 13 can play a certain guiding role on the clamping plates 4, and the phenomenon that the clamping plates 4 are dislocated during movement is avoided;

a limiting groove 15 is formed in the L-shaped plate 2, one side of the clamping plate 4 is connected with a limiting structure 5, the limiting structure 5 is slidably connected in the limiting groove 15, the limiting structure 5 is slidably connected with the L-shaped plate 2, an iron core 14 is connected to the transformer combiner 3, a first radiating plate 6 and a second radiating plate 7 are lapped on the transformer combiner 3, a clamping groove 17 is formed in the clamping plate 4, guide plates 18 are arranged on two sides of the second radiating plate 7, the guide plates 18 are clamped in the clamping groove 17, the first radiating plate 6 is clamped with the second radiating plate 7, an auxiliary groove 16 is formed in the first radiating plate 6, the iron core 14 is slidably connected in the auxiliary groove 16, and when the first radiating plate 6 is lapped above the transformer combiner 3, the iron core 14 above the transformer combiner 3 slides in the auxiliary groove 16, so that the auxiliary groove 16 plays a certain auxiliary role on the iron core 14, and the phenomenon that the first radiating plate 6 collides with the iron core 14 when the transformer combiner 3 is lapped is avoided;

the first heat dissipation plate 6 is internally provided with the groove 10, the groove 10 is internally provided with the threaded hole 9, one side of the second heat dissipation plate 7 is connected with the projection 8, the projection 8 is internally provided with the threaded rod 11, the projection 8 is clamped in the groove 10, the projection 8 is in threaded connection with the threaded hole 9 through the threaded rod 11, the projection 8, the groove 10 and the threaded rod 11 are arranged, when the first heat dissipation plate 6 and the second heat dissipation plate 7 are assembled, the projection 8 at the tail end of the second heat dissipation plate 7 is clamped in the groove 10, and the projection 8 is in threaded connection with the threaded hole 9 through the threaded rod 11, so that the stability after the first heat dissipation plate 6 and the second heat dissipation plate 7 are fixed is improved, and the phenomenon that the first heat dissipation plate 6 and the second heat dissipation plate 7 fall off when the first heat dissipation plate 6 and the second heat dissipation plate 7 are impacted by external force is avoided;

the limit structure 5 comprises a guide rod 501, the guide rod 501 is slidably connected in the L-shaped plate 2, a limit disc 502 is connected outside the guide rod 501, the limit disc 502 is slidably connected in the limit groove 15, one end of the guide rod 501 is connected with a stress disc 504, the other end of the guide rod 501 is connected to the side face of the clamping plate 4, a spring 503 is sleeved outside the guide rod 501, the limit disc 502 is connected in the limit groove 15 through the spring 503, when the transformer combiner 3 is fixed in the mounting seat 1, the clamping plate 4 clamps the side face of the transformer combiner 3, the clamping plate 4 is pushed by the spring 503 during clamping, the spring 503 plays a certain supporting role on the clamping plate 4, and the phenomenon that the clamping plate 4 shakes after being fixed with the transformer combiner 3 is avoided.

The working principle of the utility model is as follows:

when the combined transformer combiner 3 and the protection device are fixed, the guide rod 501 can be pulled by the force-bearing disc 504, the guide rod 501 can drive the clamping plate 4 to move, the sliding block 13 above the clamping plate 4 can slide in the sliding groove 12, the limit disc 502 on the surface of the guide rod 501 can slide in the limit groove 15, the spring 503 can deform along with the movement of the limit disc 502, the force-bearing disc 504 is released when the transformer combiner 3 is placed at the corresponding installation position of the installation seat 1, the clamping plate 4 can be reset under the action of the spring 503, and the reset clamping plate 4 can be overlapped with the side surface of the transformer combiner 3;

then overlap joint when carrying out the slip with first heating panel 6 and cardboard 4 is in the top of vary voltage combiner 3, and second heating panel 7 slides in draw-in groove 17 through baffle 18 of side, and terminal lug 8 then can the joint in recess 10 when the removal of second heating panel 7, and after first heating panel 6 closely laminating with second heating panel 7, threaded rod 11 alternates with lug 8 back and carries out threaded connection with screw hole 9 for first heating panel 6 and second heating panel 7 can fix in the top of vary voltage combiner 3.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

While the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes may be made without departing from the spirit of the present patent within the knowledge of one of ordinary skill in the art.

Claims (6)

1. The utility model provides a short-circuit current limiting protection device of transformer and current-limiting magnetic core combination, includes mount pad (1), its characterized in that: the utility model discloses a transformer combined device, including mount pad (1), be connected with L template (2) on mount pad (1), the both sides of transformer combined device (3) all overlap joint has cardboard (4), limit groove (15) have been seted up in L template (2), one side of cardboard (4) is connected with limit structure (5), limit structure (5) sliding connection is in limit groove (15), limit structure (5) and L template (2) sliding connection, be connected with iron core (14) on transformer combined device (3), overlap joint has first heating panel (6) and second heating panel (7) on transformer combined device (3), first heating panel (6) and second heating panel (7) looks joint, auxiliary groove (16) have been seted up in first heating panel (6), iron core (14) sliding connection is in auxiliary groove (16), limit structure (5) include guide arm (501), guide arm (501) sliding connection is in L (2), guide arm (501) are connected with L template (2) sliding connection, guide arm (502) are connected with limit plate (502) outside limit plate (501), the other end of the guide rod (501) is connected to the side face of the clamping plate (4), a spring (503) is sleeved outside the guide rod (501), and the limiting disc (502) is connected in the limiting groove (15) through the spring (503).

2. The short circuit current limiting protection device of a transformer and current limiting core combination of claim 1, wherein: a sliding groove (12) is formed in the L-shaped plate (2), a sliding block (13) is connected to the clamping plate (4), and the sliding block (13) is slidably connected in the sliding groove (12).

3. The short circuit current limiting protection device of a transformer and current limiting core combination of claim 1, wherein: clamping grooves (17) are formed in the clamping plates (4), guide plates (18) are arranged on two sides of the second radiating plate (7), and the guide plates (18) are clamped in the clamping grooves (17).

4. The short circuit current limiting protection device of a transformer and current limiting core combination of claim 1, wherein: a groove (10) is formed in the first radiating plate (6), and a threaded hole (9) is formed in the groove (10).

5. The transformer and current limiting core combined short circuit current limiting protection device of claim 4, wherein: one side of the second heat radiation plate (7) is connected with a lug (8), and a threaded rod (11) is arranged in the lug (8).

6. The transformer and current limiting core combined short circuit current limiting protection device of claim 5, wherein: the lug (8) is clamped in the groove (10), and the lug (8) is in threaded connection with the threaded hole (9) through the threaded rod (11).